Monday, April 23, 2018

Oh Where Oh Where Has My Day Gone?

Sorry.  Working on a bizarre problem with the little engine project on my rotary table, so no content. 

As always, I try to save a cartoon for times like this.  You've heard of Kiwi birds from New Zealand, and you've heard of, probably eaten, Kiwi fruit.  Finally a grand unified theory to explain the brown fuzzy fruit  and the brown fuzzy bird:



Sunday, April 22, 2018

Earth Day

It's time for our annual bacchanalia of the festival we call Earth Day.  Earth Day, as most of you know, is a holiday made up in the late 1960s at the start of the national environmental movement.  Ira Einhorn is one of the main founders of Earth Day, if not the guy who started it.  Ira practiced what he preached: he murdered his girlfriend (less stress on the planet) and composted her body in his closet.  (Hey - reduce, re-use, recycle!)
You won't find Ira Einhorn's name listed in any of the Earth Day promotional literature, as the organizers have taken great pains to distance themselves from this man, at least since he became better known for composting his girlfriend in a trunk in his closet for a couple of years in the late 1970s.
The movement led to the creation of the Environmental Protection Agency, the High Priests of Junk Science, probably the single best example of an agency that has outlived its usefulness. 

Over the years, I've wasted far too many minutes writing about Earth Day.  It's too long to sort through and pretty much all curmudgeonly, so I'll just say I hope you had a nice day.  Still, there are a a couple of good things to remember about the modern environmental movement.  Remember that nature wants you dead and most environmentalists prefer the wild animals over you (look at how they respond to wolf attacks on cattle or people) and you'll have a pretty good start.  In fact, it's probably easier just to say that mainstream environmentalists want you dead. 
  • CNN Founder Ted Turner: "A total population of 250-300 million people, a 95% decline from present levels, would be ideal."
  • Dave Foreman, Earth First Co-Founder: "My three main goals would be to reduce human population to about 100 million worldwide, destroy the industrial infrastructure and see wilderness, with it’s full complement of species, returning throughout the world."
  • Maurice Strong: "Isn’t the only hope for the planet that the industrialized civilizations collapse? Isn’t it our responsibility to bring that about?"
Gee, the moderate guy only wants to kill off more than 95% of the human race.  See the current world population is around 7 billion people.  For Dave Foreman, 100 million out of 7 billion is 100 out of 7000 or 1.4 %.  At 300 million, Ted Turner would generously let 4.3% live.

And remember: your tire fire should be visible from Proxima Centauri.



Saturday, April 21, 2018

About that Southwest Airlines 737 Engine Failure

Engine failure... sounds so sterile; so mundane doesn't it?  We can't call it an explosion because there were no chemicals exploding; no fuel going off.  It sounds like a joke to call it a "spontaneous engine disassembly", although that's fairly accurate.  Everyone knows the left engine on this Southwest Boeing 737 lost a turbine blade, leading to a very bad outcome: metal penetrating into the pressure vessel and killing a passenger.  I'm sure everyone has seen the story.

While I never worked on engines, I worked in the civil aviation industry for 20 years and have some knowledge about how the industry and FAA work.  Because of that I have some thoughts I want to share with you.

Let's start here: there's a reason that Jennifer Riordan, the woman who was killed, was the first U.S. passenger airline fatality since 2009: the relentless drive of tens of thousands of engineers of all kinds driving to always determine the root cause (brief overview) of all problems and to design systems so that a single failure, like losing a turbine blade, doesn't take down an airliner.  The engine housing should not have allowed the debris that punctured the fuselage to escape: that means there were two failures here.  The second failure, and arguably the one that caused the fatality, was the failure of the engine housing to contain the flying debris.

All jet engines on commercial airlines get qualified this way.  For example, here's a video of one of the huge engines on an Airbus double decker A380 having a turbine blade blown off with an explosive as part of its qualifications test.  Engines are designed to survive this; to fail gracefully.  Additionally, all two engine aircraft like the Southwest 737, are certified to be able to fly on one engine, including be able to climb out from an airport should the engine fail immediately after takeoff.

There's an undercurrent among the news talking heads that they're scared this is going to start happening widely.  I'd say that's not likely.  The Boeing 737 is one of the most common aircraft in service, with production lines rolling out about two new aircraft every day.  I don't know what percentage use the CFM56-7B (GE/Safran) engines that are being grounded for inspection, but it's not a big population of engines they're inspecting.  Reuters put some numbers in the story.
Ultrasonic inspections on fan blades that have been used in more than 30,000 cycles, or in service for about 20 years, will be required in the next 20 days, the agencies said on Friday. A cycle includes one take-off and landing.

That order will affect about 680 engines globally, including about 350 in the United States, the FAA said. The engine that blew apart on Tuesday’s Southwest flight would have been affected, since the company said it had 40,000 cycles.
680 engines in the world, somewhere between 680 and 340 aircraft, when at any given moment there are 5 to 10,000 aircraft in the air.  The chances of even being on one of those aircraft are vanishingly small. 

Everything that gets made can fail.  System engineers compensate for that by designing systems so that it takes more than a single point failure to take out the system.  If the two failures are truly independent of each other, the probability of both failing is very small. 


Being improbable doesn't mean it can't happen; after all, someone wins the Powerball lotto regularly.  A failure analysis is going on here, and it's a safe bet there will be a change to something.  Perhaps just a change to inspection frequency or methods for the turbine blades or a change to allowed hours of flight; perhaps design changes to the forward part of the CFM56 engines, perhaps something else.  This failure will become less probable.    


Friday, April 20, 2018

Solar Cycle News Update - We're Pretty Much at the Bottom

I surprised myself by going back looking for my regular Solar Cycle News Updates, which I had been doing pretty much every six months, and finding the last time I did one was in February of '16, over two years ago!  The decline has continued and while we're not technically considered to be at solar minimum between cycles 24 and 25, we are practically at solar minium.

NOAA's Space Weather Center shows the observed sunspot number graph at essentially zero.  As always, the red curve is the predicted value, the black curve with a lot of variation in it is the monthly values, and the blue curve is the smoothed monthly values.  We can see that this cycle had two peaks, like the previous (and it's not that unusual).  It's only by going back to earlier posts that you can see that this cycle's smoothed sunspot number was always below the predictions. 


I also usually ran the planetary A index value; a measure of geomagnetic activity, so let me refresh that.  There's no red predicted line, but the black and blue curves mean the same thing.


Today, there's a solar spot complex coming around the limb into view but zero sunspot days are becoming more frequent and will become more frequent as we go forward through 2018 and '19.  There were only three days with sunspots in the past week.

Geek out note - you can skip this paragraph and not miss anything: the sunspot number is not what you think it is.  It's not obtained by taking an image of the sun and counting all the dark spots.  It's a two digit number where the first is ten times the number of spot groups and the second the number of spots.  If there was a single dark spot on the entire earth-facing hemisphere of the sun, the SSN would be 11: one group, one spot.  In general the number is k*(10*G+S). (where G is # of groups, s is # of spots and k is a coefficient for each observatory that helps adjust for differences in their capabilities).

As I've posted before, this is the weakest solar cycle in 100 years, which means no living solar scientist has seen a cycle this weak, and our records of what the sun was doing back then are more sparse than what's available now.  Since no living scientist has seen a cycle this weak, expect all predictions to be even less accurate than usual. 

After saying something like that, it seems like a fool's errand to try to predict the next cycle (although that's never stopped anyone before).  Predictions seem to be uniformly on the low side, from being roughly the same as this cycle to somewhat weaker.  I've read predictions of an SSN of 62 for cycle 25 (compared to 82 for this peak).  Nobody I can find is predicting a strong cycle 25. 

It's probably too early to consider predictions for beyond cycle 25, let's not get like IPCC predictions trying to pin global temperature to tenths of a degree in a hundred years.  You may have seen mention, though, of a prediction that cycle 26 may start another Dalton minimum with no sunspots for perhaps 20 years.  From a 2015 meeting of the Royal Astronomical Society, Professor Valentina Zharkova of Northumbria University presented results for a new model of the Sun’s interior dynamo system at the meeting that points to the end of the modern active period.

Zharkova and her colleagues (Professor Simon Shepherd of Bradford University, Dr Helen Popova of Lomonosov Moscow State University, and Dr Sergei Zarkhov of Hull University) have found a way to account for the discrepancies [in observed cycles]: a ‘double dynamo’ system.
....
Their predictions using the model suggest an interesting longer-term trend beyond the 11-year cycle. It shows that solar activity will fall by 60 percent during the 2030s, to conditions last seen during the Maunder Minimum of 1645-1715. “Over the cycle, the waves fluctuate between the Sun’s northern and southern hemispheres. Combining both waves together and comparing to real data for the current solar cycle, we found that our predictions showed an accuracy of 97 percent,” says Zharkova.

The model predicts that the magnetic wave pairs will become increasingly offset during Cycle 25, which peaks in 2022. Then during Cycle 26, which covers the decade from 2030-2040, the two waves will become exactly out of synch, cancelling one another out. This will cause a significant reduction in solar activity. “In cycle 26, the two waves exactly mirror each other, peaking at the same time but in opposite hemispheres of the Sun. We predict that this will lead to the properties of a ‘Maunder minimum’,” says Zharkova.
I'm wary of predictions for another Maunder minimum, on general principles.  It was both severe and at the dawn of solar observation.  We simply don't have detailed data of anything at the time.  There was no solar instrumentation comparable to what we had 100 years ago, let alone now; no radio observations, and (of course) no satellites.  Zharkova's team's method uses a technique from Digital Signal Processing, but it still depends on observations and is based on a short sample (three cycles - about 33 years) and while it matches these observations well (97%) I still don't know how well it can be extrapolated over hundreds of year.  Still, even a prolonged minimum that isn't that severe seems like it could be really bad.  It seems any deep sunspot minima correlates with colder temperatures; for example, the Little Ice Age.  Despite what the alarmists say about Global Warming (or whatever they call it this week), mankind has done better in warm periods than in the cold periods in our history (huge pdf alert - but fascinating reading).

As for my fellow hams, contacts on the higher bands (above 20 meters) will get more rare.  Perhaps FT8 and some of those new modes will help activity.  You might consider aiming improvements in your station to lower frequencies.  If you want to DX, that is.  


Thursday, April 19, 2018

A Profound Day in American History

April 19th is a deep day in American History.  Most days are known for one thing (December 7th, 9/11).  Today is known for three.

First, of course, is Patriot's Day, the day "the shot heard round the world" was fired, starting open war between the colonies and Great Britain.  I'm sure this audience knows the story, but in the aftermath of the Boston Tea Party, King George decided a military rule was needed for those unruly colonists. In more direct words, it was a military dictatorship, under General Thomas Gage. Gage directed a house-to-house search for firearms, confiscating hundreds of guns.

When Gage's spies reported that the colonists were stockpiling weapons in Concord, he sent a group of regulars to confiscate the guns.  As all tyrants throughout history have understood, it is much easier to impose dictatorial rule if the general population has been disarmed.  This day, thanks to Paul Revere and other patriots, the rebels were better prepared and ready, meeting the redcoats at Old North Bridge, inflicting 73 casualties upon His Majesty’s forces.  Appleseed events give a great telling of the history of that day. 

Apparently, it was coincidence that the Bureau of Alcohol, Tobacco, and Firearms (ATF) staged a dawn raid on a religious compound belonging to an obscure religious group called the Branch Davidians outside of Waco, Texas, on April 19, 1993.  There had been a standoff outside the compound since the end of February, when the ATF first raided the group, alleging that the Davidians were stockpiling illegal weapons, abusing children, and manufacturing illegal drugs - none of which were ever proven.
The surviving Davidians claim that it was a combination of the tanks pounding on the walls of their building, knocking over lanterns in a space filled with propane fuel (the government had cut off their electricity earlier) and CS gas that started the fires which killed most of those inside. The government, on the other hand, contends that it was Davidian leader David Koresh who ordered the fire started — either in self defense, to kill FBI agents, or in an act of mass suicide. President Bill Clinton even callously asserted, “A bunch of religious fanatics murdered themselves.”
It was not a coincidence however that Timothy McVeigh (and unknown others) chose April 19th, 1995 though; they acted in revenge for Waco and attacked on the second anniversary of the ATF's attack.   Their attack on the Murrah Building in Oklahoma City, probably because it contained an ATF office, would be the worst act of terrorism on American soil until 9/11/2001. 
 


Wednesday, April 18, 2018

LLNL Lab Successfully 3D Prints Optical Glass - With Some Tricks

I remarked a few months ago that we don't go a week without a story about something new in 3D printing in the trade magazines.  While I've become a bit numb to those, perhaps because of my interest in optics, this one made me say "huh?"

A group at Lawrence Livermore National Laboratory reports that they've successfully fabricated optical grade glass with a new printing technique.  Optical grade glass is tricky.  It's hard to convey just how clear and distortion-free optical grade glass is compared to other glasses you've seen in your life.  Eyeglasses, which are virtually always polycarbonate or a softer plastic, are nowhere near as  transparent as optical glass is.  The LLNL group isn't using a printer to produce a familiar eyeglass lens; the breakthrough here is the ability to print special mixes of optical glass with a different refractive index in each layer, which may allow more exotic shapes and performance.
Because the refractive index of glass is sensitive to its thermal history, it can be difficult to ensure that glass printed from the molten phase will result in the desired optical performance, researchers said. Depositing the LLNL-developed material in paste form and then heating the entire print to form the glass allows for a uniform refractive index, eliminating optical distortion that would degrade the optic's function.

“Components printed from molten glass often show texture from the 3D printing process, and even if you were to polish the surface, you would still see evidence of the printing process within the bulk material,” says LLNL chemical engineer Rebecca Dylla-Spears, the project’s principal investigator. “Using paste lets us obtain the uniform index needed for optics. Now we can take these components and do something interesting.”
Their goal is to improve the ability to manufacture difficult things, such as gradient index (GRIN) lenses.  The promise of the technique is to manufacture optical glass in novel shapes, reducing component count in some systems, and probably allowing new types of optical systems as well.  
For the study, researchers printed small, simple-shaped optics as proof of concept, but Dylla-Spears said the technique eventually could be applied to any device that uses glass optics and could result in optics made with geometric structures and with compositional changes that were previously unattainable by conventional manufacturing methods. For example, gradient refractive index lenses could be polished flat, replacing more expensive polishing techniques used for traditional curved lenses.

“Additive manufacturing gives us a new degree of freedom to combine optical materials in ways we could not do before,” Dylla-Spears said. “It opens up a new design space that hasn’t existed in the past, allowing for design of both the optic shape and the optical properties within the material.”

(Pictured: LLNL chemical engineer and project lead Rebecca Dylla-Spears and LLNL materials engineer Du Nguyen.)

As the article said, the lenses that they show in the picture are "small, simple-shaped" optics, and I'm not clear on how it's processed.  It sounds as if their paste will have to heated to the melting point of the glass, which means it will have to be held in a mold so that it doesn't flow away while it's liquid.  The treatment in the molten state is one of the things the distinguishes optical glass from regular slabs of glass.  Holding it at some temperature between molten and solid, annealing the glass until it's stress free and shows no swirl-like irregularities when looked through onto a flatly lit surface (or sky).  All those steps are still needed and still there.  I'm guessing the main interest here is the novel structures with different refractive indices in different stack-ups, or perhaps in rings or other shapes.



Tuesday, April 17, 2018

YouTube Part Deux - Narrowcasting

Thanks to commenter Ratus to yesterday's post about YouTube, a picture seems to emerge to me.  Ratus points out that Chris Bartocci, of the Small Arms Solutions Channel has been a victim of YouTube. Chris writes:
On March 23rd we received our first strike on YouTube for our Caracal CAR816 A2 video. Someone in the comments section said they were reporting the video for "promotion of terrorism" because Caracal's main hub is in the UAE. Obviously, it could not be deemed as any such promotion of terrorism and it has been appealed. However, more than 2 weeks later and we have not heard anything. Then on April 1st we received our 2nd strike for a video that was posted months ago on the Glock 19x for "violence". Again, that has been appealed. Because of the 2nd strike they will not allow us to post on YouTube for two weeks.
Chris goes on to say he's in the process of moving all of his video content to other platforms:  GunStreamer.com, DailyMotion.com, and BitChute.com

One of the obvious issues with what Chris says is that his videos were reported to YouTube.  Which tells me some anti-gun nut saw the video and complained.  I think that's how it's going to work.  For all the channels I mentioned yesterday that seem intact and seem to not have been affected, some SJW is going to see something and complain.  Maybe someone saw him before and was stalking his channel for something to complain about.  Maybe they're being paid to search YouTube like Soros' Media Matters pays people to watch Fox News to find something to complain about.  Maybe not.  Regardless, someone is going to see a Ruger video for the Precision Rifle and decide it's too scary because it's black.  Or they're going to see a trick shooter like 22 plinkster shoot through a string of marshmallow Peeps and complain about the violence against Peeps. There's always something to complain about. 

In the 1980s, I read a book called, The Media Lab (long out of print), about the institution at MIT by that name.  The book introduced me to the concept of narrowcasting, in direct (deliberate) contrast to the idea of broadcasting that everyone grew up with from the dawn of TV until the mid-90s or so.  Narrowcasting is just that: aiming your TV program (and the advertising that sponsors it) to a narrow audience, and not trying to reach the entire country. 

In the era of hundreds of TV channels, the idea is obvious; it was less obvious in the '80s.  Programming like that found on the Outdoor Channel or World Fishing Network, to name a couple, will never have an audience the size as the major networks get for their big shows.  Last week, for example, the top rated show on the networks was the rebooted Roseanne series with 13.8 million viewers, while the last of the top 25 drew 5.9 million viewers.  It's difficult to get these numbers for shows on the small networks because they're so small, but I think tens of thousands instead of millions.

That's what I see YouTube dissolving into.  The attraction of YouTube, the good part was (note the past tense) that it was a vast reservoir of information - like the biggest library ever imagined.  If you wanted to learn how to troubleshoot your laser printer, it was there.  If you wanted to learn how to play some song on your guitar (or piano, or ukelele or...) it was there.  It's where I learned most of what I know about how to fix my sprinkler system.  If you wanted to learn how to take apart your new gun to clean it, with better visuals than the line drawings in the owner's manuals, that was there, too. 

What made YouTube worth hanging out on was the variety of content.  I have 25 videos on YouTube; 16 are related to converting my milling machine to CNC, and of the other 9, two are gun related and the rest are videos from Cabin Fever Expo trip in '15.  Now, if I want to watch videos on a new machining tool or technique, I'll go there; to learn how to clean my new gun I'll have to go somewhere else.

Instead of being a place people will tend to aggregate, their audience will drop as people interested in (what I can only conclude will be) a continually diminishing content follow their favored content, YouTube will diminish in importance in people's lives. 

We have several alternatives to YouTube for gun related videos.  Narrowcasting.  What we don't have is several alternatives to what YouTube used to be, and that's what we need. 


My built up GB-22 (last year).  Mark Serbu's videos of his were still online last night.

Monday, April 16, 2018

YouTube

I've been watching YouTube since the start of the month, trying to see what their announced policies that went into effect on 4/1 actually mean in real life.

To begin with, let me quote their policies, pasted from this page:
YouTube prohibits certain kinds of content featuring firearms. Specifically, we don’t allow content that:
  • Intends to sell firearms or certain firearms accessories through direct sales (e.g., private sales by individuals) or links to sites that sell these items. These accessories include but may not be limited to accessories that enable a firearm to simulate automatic fire or convert a firearm to automatic fire (e.g., bump stocks, gatling triggers, drop-in auto sears, conversion kits), and high capacity magazines (i.e., magazines or belts carrying more than 30 rounds).
  • Provides instructions on manufacturing a firearm, ammunition, high capacity magazine, homemade silencers/suppressors, or certain firearms accessories such as those listed above. This also includes instructions on how to convert a firearm to automatic or simulated automatic firing capabilities.
  • Shows users how to install the above-mentioned accessories or modifications.
The way I read the first one, none of the manufacturers' sites should be allowed.  They don't offer direct sales of firearms, but they can't.  They're FFLs, after all, but what else are the gun manufacturers trying to do on YouTube except sell their firearms and accessories?  It's up to you to find the local shop to buy them from.  I find all of the channels I subscribe to (Mossberg, Ruger, Savage, Sig Sauer, and Springfield Armory) are all up and all look like they did last month.  Is that whole paragraph aimed at someone using a YouTube video with their Gun Broker listing, or their local classified ad?  I can't imagine that's a big number.

The second sentence in that paragraph sounds like it would ban Slide Fire (the company) completely.  They not only sell the suddenly-feared bump stocks, they sell a combination belt fed upper with one of their bump stocks that fires pretty darned fast. 

What about the last clause, about "high capacity magazines (i.e., magazines or belts carrying more than 30 rounds)"?  That should preclude the Slide Fire product I just linked to, and a good chunk of Magpul's product line.  Well, Magpul's channel is still up and their list of videos shows some of those Evil "High Capacity Magazine Clips".   No changes I'm aware of. 

Moving on to the second, I'd think that videos on machining an AR lower would be down.  Nope. There are "About 19,000 results" showing the completion of 80% lowers with everything from CNC to drill presses, and also many showing turning blocks of solid aluminum into complete lowers.  I'd call them "0% lowers" but that term has come to mean forgings that resemble an AR lower in shape, but that are otherwise solid metal.    None of the machinists or homemade gun videos I knew to look for are gone. 

Manufacturing ammunition shouldn't include reloading, and a quick check shows almost 3,000,000 videos that their search engine returns for "reloading".  Some of them certainly won't be ammunition but there were 19,000 for "RCBS reloading".

So what's the reality?   I have no idea.  I've been trying to find out just what is going on here and watched some videos from folks I've watched before.  Royal Nonesuch, in a video showing a shop built, single shot, 45 ACP "hand cannon", which certainly seems like it would fall under the second paragraph, says the only video he's had banned was one about selling home made guns at a gun buy back where he lives.  Then YouTube's Autoplay offered a video of his by called "Selling Homemade Guns at Gun Buyback!!" as the next one to watch - and it played. 

Trick shooters like 22 Plinkster or Kirsten Joy Weiss should be unaffected.  I see Hickok45 posted a fresh gun demo video yesterday with an old Winchester 92 lever action, and it's still there.  Going by the black letter of what those three simple paragraphs say, these things should be acceptable.  There should be tons of content still there. 

Have any of you noted videos going away?  Yeah, I know you can't link to something that isn't there anymore, but all of things I look for are still there. 


Sunday, April 15, 2018

A Little Shop Project Update

It has been almost two months since I mentioned starting on a new engine, a flame licker designed by Philip Duclos.  I haven't been motionless, but I haven't been spending every day in the shop either.

Life has a way of intervening and there have been plenty of unexpected side projects that took time.  I've written about some of the planting.  Another of those projects is that I've learned how to diagnose and repair a sprinkler system, and am in the process of getting ours back to full, normal operation.  Since these come on at 4AM twice a week, I don't know that they're working or not, unless I see dried out areas in the yard.   On Easter, when I was up to put the pork shoulder into the smoker at 5AM, the sprinklers were on and I could see one was simply not rotating properly.  Its replacement went in Friday.

What I've done until now is cut rough stock to decent starting sizes and order some other stock I didn't have.  That includes turning a 2-3/8"diameter x 3-1/4" long chunk of aluminum down to 2-1/16 diameter, cutting blocks of metal to overall dimensions needed, and that sort of mundane task.  This weekend, I made the (almost ceremonial) first cuts to one of those pieces of rough stock, thinning a piece of 3/4" thick stock to the profile of the cylinder support pedestal.  This is the midpoint of the process, yesterday.  It took 3/16" off each side, 3/8" above one end, leaving a wider base. 


The part of the support on the right is 3/8" thick now; you can see the base on the left is thicker - it's 3/4" thick.  The whole piece started as bar stock that was a little over 2"x 3" x 1" thick. That's a couple of cubic inches of aluminum turned into chips in the vacuum cleaner. 

Next up is to mount this to the rotary table - after I mount the rotary table.  It's eventually going to resemble this:


Note that I didn't say it will look exactly like this. 

Just a little shop distraction. 


Call For Nosmo King

Nosmo, if you see this, drop me an email when you get a round tuit.  I've tried the address you've used before and it bounces.  Here's one in case you need it:


Saturday, April 14, 2018

If We're Throwing TLAMS at Evil Places

If we're throwing TLAMs at evil places, I'm not sure we're even in the right zip code.  You can go read whatever speculation you prefer over whether or not that was a real chemical weapons attack on "innocent men women and children" last week in the Syrian city of Douma.  Even if it was, I'm not still not sure did the right thing.  Someone snarked, "you're killing Syrians to tell Assad that he should kill Syrians the way you're killing them and not the way that he's killing them".   I don't know that any Syrians were killed, based on reading the rapidly-produced Wikipedia page and a couple of news pages, but there's something to be said for the argument.   Yeah, I know, prevent the spread of chemical weapons.  I think that horse left the barn about a hundred years ago. 

Frankly, there's no shortage of evil in the world, and I'm not sure where this one ranks in the Top 40 of Evil.  Yeah, chemical attacks on an unarmed, unprepared, civilian population are evil.  It's just that if a nation could only address one evil in the world, what should they attack? 

I very rarely talk about this, but I support an organization called Operation Underground Railroad that was formed to free children from sex slavery and fight human trafficking.  It's a small organization, and they recently celebrated saving their 1000th child.   There are estimates that 40 million people are enslaved today; that means more people are in slavery now than the entire period we think of as the peak of the slave trade - the 1700s and early 1800s.  No, it's not all Islamic countries: Haiti, Thailand, countries in South America and even the US are in the mix.  

But the Mideast is a hotbed of slavery today.  ISIS has spent the last several years capturing Christian and Yazidi women and selling them into slavery - sex slaves for their Jihadis.  The Yazidi faith combines elements of Islam, Christianity and Zoroastrianism, an ancient Persian religion.  ISIS views the Yazidis or Christians as barely human - they are there for Islamic men to rape. 

Stopping this slavery is hard.  Throwing missiles or smart bombs at some buildings is comparatively very easy.  To stop sex slavery, you have to fight on dozens of fronts.  For one example, you have to fight from the bars in Bangkok, Thailand to the Americans that go there on vacation to use the children.  The very best thing we could have done for these ISIS slaves was destroy ISIS and Sec Def Mattis has done a good job at that, from what I can tell.  There are still pockets of ISIS over there, and in new countries they've moved to; those need to be hunted down and killed off, too. 

Because while slavery and sex slavery may be evil, that's just the warmup act for ISIS.  They've moved on to harvesting organs from slaves to sell on the black market.  OUR had partnered with the Nazarene fund; the two have run rescue operations and gotten children out literally minutes before they were going to be killed.  If the subject isn't human, they don't see any need to anesthetize the patient victim: they just cut them open and remove whatever they can sell, killing the slaves in the process.   

Hats off to the military planners and all the people spread around the world who made last night's mission work.  I just think this sort of evil is at least on a par with what the strike was all about, and I think it deserves the attention of world, too.
Tim Ballard on an operation in Haiti this February.  Tim is a former special operator who is founder and CEO of Operation Underground Railroad and recently made CEO of the Nazarene Fund. 


Friday, April 13, 2018

Ding Dong the CAFE Standard's Dead

I've been reporting on the EPA's proposed 54.5 MPG CAFE standard since it was proposed in 2012 (to take effect in 2025).  So it only seems appropriate that I should cover the demise of that mileage standard that has occurred this month.

So while I've been watching this subject whenever it pops up in the news, I don't expect readers to know the important things off the top of their heads.  Allow me to summarize for you. 
  • First and foremost is a rule that I think all engineers know: TANSTAAFL - as Robert A Heinlein put it.  There Ain't No Such Thing As A Free Lunch.  You're going to spend money to redesign the cars to meet this average fuel economy number and car buyers are going to spend more money for the cars.  
  • The early estimate from the Obama NHTSA was that a car owner would save $8000 over the life of their car with the increased fuel mileage.  Naturally, most people with an engineer's or manager's perspective then wondered "how much do I have to spend to save $8000?"
  • Estimates of how much a typical car would increase in cost vary widely.  The according to the National Auto Dealers Association estimates $3,000 more.  The Center for Automotive Research (CAR, of course), says it could hit $11,000 to save that $8000.  Another research group, Scenaria, said the price would likely increase by $5000 to $8,000.  While spending $5000 to save $8000 doesn't sound like a good idea, spending $11,000 to save $8,000 sounds quite a bit worse.  Of course, as a buyer, your choice would likely be spend the money or don't have a car.  
  • A former CAR chairman pointed out that the savings on fuel costs turn into a diminishing returns curve. "When you reach 35, 40, and 50 miles per gallon, the cost to achieve it gets too high," chairman emeritus David Cole said in an interview. "And the value returned to the customer gets to be less and less. The risk is that people will say, 'Why should I buy a new car? I'll just keep the old one. It's a better business decision.' "  
The fundamental problem is that the world didn't comply with the 2012 EPA predictions.  Gas prices aren't over $5/gal and climbing.
The problem is that the projected fleet makeup for 2025 was based on the oil prices in 2010 to 2012, which were before fracking revolutionized US energy production and drove oil prices down.  Low gas prices have precipitated a strong consumer shift from cars to light-duty trucks and SUVs; American consumers love their larger, more capable vehicles. The shift to more trucks makes it more difficult for the industry to meet the government’s 2025 gas mileage target.
When the 54.5 mpg limit was proposed, the regulators assumed the public would buy 65% cars and 35% trucks.  In reality, the mix being sold is the exact opposite of that.  The math says that if they're selling 65% trucks to 35% cars, the fewer cars have to be very far above 54.5 MPG to bring the fleet average up to that number.  (The trucks need to be as good as they can be made, too).  I think most people are aware that the top three selling vehicles in the United States are all pickups: the Ford F-150, Chevy Silverado, and Dodge Ram. 

Of course, that's often a problem with these big government programs: the world doesn't unfold as they assumed, at least partly because they based their predictions on improper samples of the country.  Not everybody lives in a big city and drives a small car.  A pickup or SUV can simply do more than a sedan, and some people want that capacity.  Timothy Benson at the Daily Caller has a lot of choice observations on the insularity of the people forcing decisions like this on us.

The overwhelming problem with achieving the CAFE 54.5 mpg average, though, is that the real world doesn't take orders.  The only place the laws of physics can be broken is in TV commercials and cartoons.  A bureaucrat can't just say, "you must make every vehicle twice as fuel efficient" and have thermodynamics suddenly change - as much as they might think they can do that.  The internal combustion engine has been optimized as a system for a hundred years, and nobody is suddenly going to make it 70% more efficient (the difference in CAFE standards from now to 2025).  To deliver the power needed to move big things requires long piston strokes and large pistons, which means large engines.  Instead, to reach the new standard the small cars averaged in the car maker's fleet will get lighter, with more plastics and thinner metal structures. They'd be less safe. The new standard would cost more lives. 

A real half ton pickup, like the big three mentioned above, that got twice the current MPG for the same price would be snapped up so fast it would set every truck sales record imaginable.  Nobody's against that.  We're just against being forced to pay more for a flimsier, less safe vehicle than we save by buying it, and we're against getting stuck with a vehicle that doesn't do everything we need it to do.


Things you won't do with your Prius, courtesy Truck Trend Network.


Thursday, April 12, 2018

Where (This) Man Has Never Gone Before

A cursory search shows that I've never mentioned on this blog that I used to make telescopes, including a few reflecting telescopes from grinding the mirror through building the mount and building a small refracting telescope from a copier lens (I have explained mirror making in one of my patented absurd analogies, though).  Telescope Making became a national hobby in the early part of the 20th century, led by a group of machinists at home in Springfield, Vermont.  The first telescope maker's conventions were (and still are) held in a place called Stellafane in Springfield.

While I haven't built one in a while (this place looks like a used telescope store), I'm still interested in astronomy, telescopes and the tech.  This week, I came across something I've never seen before.  Ultrascope from the Open Space Agency is an open source, small reflecting telescope, designed to be put together with a minimal amount of specialized knowledge, but assuming the builder has a 3D printer available and access to other "modern tech", like smart phones and a good internet connection.
Ultrascope is an open source robot telescope or ARO (Automated Robotic Observatory) controlled by a smartphone. It empowers citizen scientists with a low cost and open source robotic telescope to assist the work of professional astronomers.


If you're not from the astronomy world, I'm betting you've never seen a telescope mounted like this.  This is called a split ring equatorial mount and is a very stable design, originally designed by one of those Stellafane telescope makers for the 200 inch reflector on Mount Palomar in southern California: the largest telescope in the world for about half a century.  The way that this mount is oriented (in the left panel) we're looking at it from the southeast, so the plane of the ring the telescope sets in forms an angle to the horizontal equal to the latitude of the observing site. 

The scope is optically small: a 6" mirror with a focal length that looks to be about 36" (squinting while looking at various pieces, comparing sizes and guessing).  Therefore, it looks like an ambitious project for someone working on their own with no expert assistance, and who buys a professionally made mirror.  6" was the size of the first mirror I ground from flat glass and for a couple of generations, the standard beginner's telescope mirror to grind was a 6" mirror with a 48" focal length.  Like camera lenses, longer focal lengths lend themselves to higher power and shorter focal lengths toward wider angles.

The game here is a that this is a Robotic Observatory, to search for asteroids as a collaborative astronomy project.  The connectivity and programmability comes from an Arduino Mega processor, and the drive motors are controlled by a shield board that plugs into the Arduino Mega.  Because it's intended for robotic survey use, it's not designed for an eyepiece, but rather to use a smartphone camera as the eyepiece.  This video shows the scope in overview.


All in all, an interesting looking little project.  It's not strictly for astronomers, because they envision someone building it and then setting it up to work autonomously.  Builders aren't expected to sit out all night with it, but would need to do things like find how to focus the image, and operate the controls.  Final words to the Open Space Agency.
If you’re a maker, DIY Engineer, citizen scientist or just a long-time aspiring astronaut with stars in your eyes, then we’d love to hear from you.

Visit the Open Space Agency

Wednesday, April 11, 2018

We Interrupt the Continuous Stormy Daniels Coverage For This Syria Coverage

Just kidding.  CNN wouldn't do that.  If they interrupted their continuous Stormy Daniels story for anything, it's just that it's the latest shiny, whatever that may be.

As I'm sure you've noticed, we seem to be on the verge of doing something in Syria, again.  Trump is tweeting that we're going to launch missiles, Putin is saying his forces will destroy them and then destroy whatever platform launched them.  Meanwhile state television in Russia last night told people to have preps on hand for a few days in case there's a nuclear war, and know where to find the nearest fallout shelter
Which brings us to Russian state TV.  Last night on the nightly news broadcast, the coming conflict with the USA was the big news and officials in Russia repeatedly said “If the United States attacks Syria based on this phony chemical weapons fraud, then Russia will shoot down the incoming US missiles and fire upon the platforms which launched them – including Ships, planes and ground based locations.  This action by Russia would likely cause a war between the US and Russia and . . . . . Russian state TV gave citizens advise on what they should take to Bomb Shelters.
This was complete with a reporter standing in front of a wall of monitors showing a mushroom cloud.
(Full video - in Russian with subtitles)  Is this crazy brinksmanship rhetoric like we get from North Korea all the time?  I don't know.

The guy I trust for insightful thoughts on this sort of topic is LL over at Virtual Mirage.  He addressed the situation and thinks that it smells funny.  In response to a couple of comments, he said:
The LAST gas attack was likely an accidental release from rebel stores after an attack from Syrian Air Forces.

This time, I really don't know.
...
There was NO reason for the Syrians to launch a gas attack. It makes me very skeptical.
I don't honestly know what to make of this.  Is this a real threat of nuclear war (the closest we've come - perhaps - since the Cuban Missile Crisis), or is this some sort of belligerent posturing that Putin and Trump are going through?  In the last Tomahawk attack on an empty air base, we notified the Russians what was coming so they could evacuate their forces.  It's my understanding that was the normal way things worked in the first cold war: back channels talked to back channels so no big, ugly mistakes happened.  Is that happening again?   It apparently didn't happen in early February when Russian mercenaries attacked US forces in Syria, and lost 300 men (Peter had a really good summary here).  

Obviously, I don't have any access to the real intelligence on this, so it's pointless to comment on that.  

I'm old enough to remember duck and cover drills in elementary school, getting under our desks, and "put your hands behind your neck".  All of the talk of a "new cold war" has pretty much rolled off my back as "oh, that again".  I guess we'll find out in the next few days.  


Tuesday, April 10, 2018

Another View of the Facebook Privacy Problems

In the early days of the 20th century when radio was being established, the inventors and early advocates of radio couldn't understand how to make their invention work.  Who's going to pay for music brought into their house, even if it's a world class orchestra instead of something they could hear locally? Not just that, how could they arrange the payments?  Somehow the idea was born that radio could be "free" to users, except for buying the radio itself, if they could arrange sponsors to pay for the broadcasting.  The sponsors, in turn, got minutes out of every hour to sell their products. 

The result was the birth of interruption-based marketing in radio and that has penetrated to all the successors to radio: TV, and the Internet.  Virtually all of the marketing you're exposed to is interruption-based: commercials on radio, television or in a movie theater; junk mail in your physical mailbox; SPAM in your email inbox; and phone solicitors are all interrupting you to try to sell you something.

Why would anyone think that a computer user, who has just been looking at various websites, or who just found a result with a search engine would want to suddenly sit there for 30 seconds and look at a popup ad?  For that matter, why would anyone think cold calling sales contacts during the people's scant evening free time would be likely to catch someone wanting to drop what they're doing and listen to the call?

Isn't interruption-based marketing fundamentally rude?

The big problem marketers have is that interruption is being limited by technology: ad blockers, script blockers, SPAM filters, video recording to fast forward through commercials, telephone answering machines, and more are making it harder for them to interrupt us.  Good!  I've never bought anything by clicking on an ad, just as I've never bought anything from a door to door solicitor or someone who shows up at my door offering to do some sort of work around my yard.  I don't like being interrupted!

The alternative is called permission-based marketing, and it's just what its name implies.  In principle, it's like the "contact me" forms you may fill out, or the "it's OK to email me" box you have to check off to enter a contest.  Perhaps you're shopping for a car or appliance and you visit several places online.  You click a box giving them permissions and suddenly it's not SPAM anymore.  In the case of Facebook, it's implicit permissions. 

An extension of that is attraction marketing, trying to draw you to their product by offering things of value to you; perhaps gun reviews, tool reviews, or perhaps give away content or other things you find useful.  The idea is to attract you to the product rather than push that product on you.  (The CNC website I find I visit the most is CNCCookbook - the owner of that company is very good at this)

The root cause isn't Facebook, it's interruption-based marketing.  They're trying to refine everything a seller might want to know about you into a package that can be sold to advertisers.  They do that by mining everything you do or say on their site, and apparently wherever their tentacles reach on the 'net.  In any case, it's purpose is to refine and limit the number of companies who interrupt you. 

I'm a free enterprise guy, and I don't begrudge the companies trying to figure out who might want their products or services, but I jealously guard my time and don't want to be interrupted.  In turn, I don't want to interrupt other people.  I can easily put myself into the position of the company.  I only want to be contacted by companies I allow the privilege of contacting me, but how do I know I've allowed everyone who I really might like to hear from.  A company might say, "you allowed those guys to contact you, and our product is better!" 

Don't think I'm defending Facebook: I briefly had an account, but dropped it five years ago because I think they're a despicable company for the way they do things, like tracking people who don't even have an account there and who couldn't have given approval. That's not even considering how they silence conservative voices.  The root cause, though, is interruption-based advertising. That, it seems, is going to be with us for a long time. 
(source)


Monday, April 9, 2018

ASME's Milestones in Mechanical Engineering

The American Society of Mechanical Engineers has put out a list of what it regards as nine of the most important milestones in American Manufacturing and Engineering.  Most date from 19th and early 20th centuries.  The list, at Machine Design, is interesting in the number of inventions related to firearms.

The first entry in the list defies that categorization of 19th and 20th centuries, dating to 1794 in the18th.  We're talking, of course, about Springfield Armory.
The National Historic Site
To supply his Continental Army with weapons, George Washington helped form the U.S.’s first national armory in Springfield, Mass. It supplied weapons for every war the U.S. fought when it was operational, which was until 1968. It also ushered in a host of machine tool innovations, including the Blanchard lathe, which could duplicate irregularly shaped parts such as wooden gun stocks. Rather than relying on a workshop full of carvers, it could reproduce a dozen exact copies simultaneously. Interchangeable parts were also partially developed there, as well as a set of precision gauges which contributed to manufacturing standards. One of the most famous of the many weapons designed and built there includes the Garand M-1. More than 5.5 million were built and used during WWII and the Korean conflict. And between 1939 and 1945, the time needed to make one was slashed by 75%
The innovations from the Springfield Armory fed number three on the list, Robbins & Lawrence Machine Shop (1846).  
Robbins and Lawrence took information developed and maintained at the Springfield Armory, and were the first to master the skills needed to design and make rifles which used interchangeable parts. Parts from any rifle could be used in another rifle of the same model and replacement parts could be made for it. This let the two machinists fulfill a contract for 25,000 U.S. Army rifles (Model 1841). They delivered a similar number of the same rifles to the British. This was made possible by improving and refining standard and special-purpose machine tools, letting them deliver the tolerances needed for repeatability and, therefore, interchangeability. The two also made such good use of milling machines and turret lathes that they are now common in manufacturing.
It's hard to overstate just how important the development of interchangeable, standardized parts is to manufacturing things - as well as later fixing them.  That it began with guns hints at the importance they play in life.  Standardized parts leads to something that the world just couldn't do without. 

U.S. Standard Screw Threads (1864) 

If every screw has to be handmade, that makes them little pieces of jewelry that you dare not misplace or put in the wrong place.  In Alexander Rose's "American Rifle: A Biography" he tells the story of an industrial show in Europe in the latter part of the 1800s, in which an American company brought rifles with interchangeable parts and shocked the European attendees to their core. 

Prior to 1870 or so, there were no standards for screws in the U.S., which made it difficult and expensive to find replacements. Inspired by Joseph Whitworth’s efforts to address the same problem in Britain, Philadelphia’s William Sellers decided to do the same in the U.S. So in 1864, he created a standard for screws and threads adapted for U.S. needs. For example, thread profiles were 60 deg., not 55, which simplified things for machinists and mechanics. He also thoughtfully defined pitch (threads per inch), form, and depth, as well as proportioning hex nuts for bolts from ¼ to 6 inches in diameter. By the 1880s, his standard was widespread in the U.S., letting manufacturers from coast to coast know the same fasteners would be available everywhere—a major step towards interchangeable parts for everything from typewriters to locomotives.
Well, I shouldn't excerpt the entire article, so just the three that mean the most to me.  Threading, in particular, is a fundamental machining operation that is deceptively simple.  For most uses, it is simple: a tap or a die is all you need.  There are families of threads (pdf), classes of threads, and getting the wrong thread someplace can be a major problem. 

To butcher the Isaac Newton quote, "If we have gotten farther, it is by standing on the shoulders of giants".

Sunday, April 8, 2018

Plants Know When They're Being Eaten and Fight Back

I started putting this post together last night and it just wouldn't work, but I wanted to try again.
Researchers at the University of Missouri have been conducting experiments that demonstrate plants are aware that they're being eaten and try to poison the attacker.  We're talking about living plants, in this case something called thale cress, popular for experimentation, and not something from a bag of harvested lettuce or salad greens.
To do that, the researchers had to first make a precise audio version of the vibrations that a caterpillar makes as it eats leaves. The theory is that it’s these vibrations that the plant can somehow feel or hear. In addition, the researchers also came up with vibrations to mimic other natural vibrations the plant might experience, like wind noise.

Turns out, the thale cress actually produces some mustard oils and sends them through the leaves to deter predators (the oils are mildly toxic when ingested). And the study showed that when the plants felt or heard the caterpillar-munching vibrations, they sent out extra mustard oils into the leaves. When they felt or heard other vibrations? Nothing. It’s a far more dynamic defense than scientists had realized: the plant is more aware of its surroundings and able to respond than expected.
I simply don't know if there's any experimentation that shows, for example, a head of lettuce you buy at the grocery store responds in the same way.  Could the lettuce harvested in a field somehow be aware that other lettuce heads were being harvested and put more toxins in their leaves?

Many of us poke fun at vegetarians and vegans for their insistence on converting the rest of the world to their views. They seem to feel it's somehow more ethical to not eat anything with a face.  Implicit in this belief is that the plants' have no reactions or "feelings" about being eaten at all.  I expect them to be aware of the 1973 book,“The Secret Life of Plants,” (TSLP) by Peter Tompkins and Christopher Bird (and this is the part that ended up tripping me up last night) .  Those of you who were old enough to be aware of popular books in 1973 (over about 10 or 13) probably remember hearing about TSLP

The science in TSLP has almost entirely been discredited by now, but it made outrageous claims about awareness in plants, including that a polygraph ("lie detector") hooked to the leaves of plant showed reactions to the thoughts of people (and, especially curiously, to the researchers that were around them most), or that they'd show stress if another plant was injured in front of them, or live shrimp were dropped into boiling water.

Despite the negative effects if TSLP, there is higher quality research going on into how plants react to stimulus.
Plants are able to sense and optimally respond to so many environmental variables—light, water, gravity, temperature, soil structure, nutrients, toxins, microbes, herbivores, chemical signals from other plants—that there may exist some brainlike information-processing system to integrate the data and coordinate a plant’s behavioral response. The authors pointed out that electrical and chemical signalling systems have been identified in plants which are homologous to those found in the nervous systems of animals. They also noted that neurotransmitters such as serotonin, dopamine, and glutamate have been found in plants, though their role remains unclear.
Here's where I ran aground last night.  The article this quote comes from is long and not an easy read.  I got sidetracked trying to condense its high points into a blog post.  It is a rather interesting read if you have the time, though.

Vegetarians seem to have a poor grasp of a few very fundamental facts of biology.  We're in an extremely unusual time in history due to two enormous factors:  first, the average citizen in the first world doesn't have to hunt for survival, and second, the number of farms providing our food has declined enormously in the last 150 years with more people moving away from farms.  It seems that most have very little idea where their food comes from.   The vast majority of living things in this world don't live peaceful happy lives, and die peacefully in bed surrounded by their loved ones  - like the protestors at that Toronto restaurant, Antler, seemed to think.  The majority of living things are eaten; many are eaten alive and most of the rest are killed and eaten.

Why is killing things that aren't animals better?   When you pick the grains of wheat, grind them down, and make bread, you're using the plant's seeds; seeds that will grow to be new wheat plants.  In more direct words, we're taking the wheat babies, grinding them to dust and then eating the babies. 

(source)


Friday, April 6, 2018

Tiny, Injectable, Floating Robots for Monitoring

A team of researchers has developed a line of tiny monitoring machines that can be used for environmental monitoring, the Internet of Things That Don't Quite Work, or for medical monitoring.
“You can make electronic circuits that are a single atom thick,” [research leader, Dr. Michael] Strano says. “One creative use no one has thought of until now is taking these electronics and grafting them onto a colloidal particle.” Colloidal particles are microscopic solid particles suspended in a fluid. Colloids are small enough to use thermal energy Ve [voltage] and achieve equilibrium with the suspending fluid. They are also large enough that their positions and motions can be measured precisely using optical methods, such as light scattering and laser-scanning confocal fluorescence microscopy. The particle has simple computing functions that can be monitored for data collection and feedback.

The research team predicts that these micro-machines will be used to monitor large areas for bacteria or spores, or even smoke, dust, and toxic fumes. By introducing the concept of an aerosolizable electronic device, one can achieve a significant cost savings compared to other satellite or drone search alternatives. [Note: anything in square brackets has been added by me - SiG]


This illustration depicts a micrometer-sized polymer particle coated with a nano-electronic circuit. (Credit: Michael Strano)

This diagram shows something that goes beyond "microscopic" to "molecular-sized".  Those free-floating yellow/blue things on the right are molecules, as are the most of the features.  The tiny size has the problem that not much computing power can be put in that size; it detects what it's looking for and changes the state of something that can be detected.  Computers aren't going to be getting much smaller than they are now anytime soon, due to hitting quantum limits, and nobody really knowing if quantum computation can actually work. 

The researchers, led by Volodymyr Koman, Ph.D., a research fellow in Strano’s group, simulated objects this size floating in a natural gas pipeline (certainly anything this size can be suspended in a moving gas indefinitely).  They were able to detect the presence of carbon particulates or volatile organic compounds in the chamber, and successfully store that data within its memory.  This is only representing 1 bit of memory.  Found it Yes or found it No. 
The data is stored on retroreflectors placed on the particles. Through them, the researchers are able to download the information for further analysis. The particles have a designated metallic connection, like a socket, for readouts. One can read the information via the two probes on the particle. The memory can be wiped for reuse once the data has been downloaded.
But gas pipelines aren't the same as injecting into people, and that area is still speculation.  The team  developed a biocompatible set of electronic components for the particle’s coating to form an electronic circuit consisting of a power source, a detector, and a memory device.  They then aerosolized them and propelled them toward a target in an effort to see how far they could be sent. They found the particles were able to fly a couple of feet.
The next step is to develop particles for specific applications. This includes monitoring applications in the human digestive system. “This is the right idea and the right time,” says Strano. “Think of these as proto-robots.”
This idea has been floating out in the "idea universe" for a while now, and I see I've done a few pieces on it (such as this).  Lots of teams are working on it, but this MIT team doesn't appear to be leading or doing things that nobody has done.  Injectable robots are coming, but not this year. 



Thursday, April 5, 2018

We're In The Age of Mass Manipulation

That's not news.  After all, it was over 55 years ago that Marshall McLuhan coined the phrase, "The medium is the message" (good story there about the misprint on the book's cover that reinforced its message).

This week we've seen another shining example of a coordinated attempt to shape public opinion and policy, the so-called "caravan" of some large number of "immigrants" coming north through Mexico planning to storm our border.  Coming through Mexico?  Isn't it common knowledge that Mexico is famously strict on its immigration laws, such that invaders from Guatemala or points south should be stopped before they get into the middle of Mexico? 

It's every bit as "grass roots" AstroTurf as the March for Our Lives, and some of the same international socialists are behind it as well. 

The organization taking the lead is “Pueblo Sin Fronteras”.  The name translates as "people without borders".  Far from a spontaneous thing, formed by people suddenly realizing, "it's so bad here I have to try to get into the US!", this is an annual occurrence.  Pueblo Sin Fronteras has been running these operations for 15 years.  There are stories that before that, they ran them under a different name.  After all, if this was a spontaneous uprising, how would they get a BuzzFeed reporter embedded in the march?  

If it was spontaneous, would they be flooding through the Chiapas, Mexico, southern border crossing with not one Mexican officer stopping them?  That green building visible in the distance is the immigration checkpoint. (BuzzFeed photo)


One of the principal Americans behind the caravan is Alex Mensing, whose LinkedIn profile says he specializes in "Immigration Justice".  As always, whenever an adjective is used in front of the word justice, like "social justice", it's not about actual justice.  It's about special treatment.   The profile says he's involved in the "CARA Pro Bono Family Detention Project".  Pro bono, of course, means "for free", but chances are someone is paying some expenses associated with all the logistics of moving this many people.  The saying that, "armies march on their stomachs" is true for any group, not just the military.  This sort of thing can't be done without a lot of logistics. 

CARA is part of the Catholic Legal Immigration Network (headquartered in Maryland) and the American Immigration Council.  Both groups are big recipients of cash from George Soros.  "People without borders" can be a little more poetically translated as Open Society, the name of one of Soros' pet organizations.  "A World Without Borders".  Yeah... no.  No thanks. (Hat tip to Glenn Beck)

We're being played. This is a replay of techniques used in March for Our Lives.  Careful control of images, so that you see pictures featured of young women with children, not of the late teens through 30-year old men visible if you dig for other pictures.  We keep getting played over and over again, by the same organizations; the same people.  It's one reason trust in the media is at an all-time low

For a long time, it has been a pretty good idea to look at any story in the media and ask "why are they telling me this?"  Is it local news that's supposed to break your heart or make you watch that news show over their competitor?  "If it bleeds, it leads"?  In the case of something like the anti-gun March, it was obvious that we were being fed a story.  They showed lots of kids, but kids were 10% of the demonstrators and the biggest demographic was older women: the average protestor was a 48 year old woman.  The problem is we don't know that when they're showing it, because they don't attempt to find out the truth and put that in their broadcast.

I think it's a safe bet to always look at any hot news story, or big event like these, asking the questions, "what are they trying to sell me, and who's behind it?" 


Wednesday, April 4, 2018

This Changes Everything for Me

Back in February, I talked about some of my attempts to get started reloading for 6.5 Creedmoor.  I was really down to one, big, nasty problem: Hodgdon’s H4350 propellant.
I can verify that I've been looking for H4350 on every "Powder Sale" to cross my email since July and have yet to see it in stock anywhere.  To date, I've had my best results with 140 gn Hornady ELD-M rounds, and I think it was one that talked about reloading with H4350 (I swear I recall seeing that on one of the first boxes I bought).
Ten days ago, I got an email from Natchez Shooter's Supply telling me it was in stock.   I don't even recall when I signed up for notification when it was in stock, but I grabbed three pounds of it.   


Words I have never seen on any web site, circled in red.  Note the 8 pound jugs were not in stock.  I just checked right now and it still shows as being in stock.  The long shortage is finally being overcome.

About the time the powder was delivered, the April sales flyer from Midway USA came.  What to my wondering eyes should appear, but the very bullets used in the ammo I've had the best results with.  Hornaday 140 grn ELD-Match bullets were on sale this month.  300 of those are on the way and should be here Saturday.


So in the space of two weeks, I will have gone from not being able to reload the 6.5 Creedmoor to having everything, and even two different types of match grade bullets: these and the Berger Hybrid Bullets I got a couple of months ago.

I still have things to learn and lots to do, but it's good to be getting to this point.  The only drawback is that our shooting season is winding down.  The weather should be good until May and might even last through May.  Not that I don't go in the summer; I just make a point to be ready to shoot when it opens and be aware of the sun.  We usually just shoot from 8 until 11/11:30.  While today, it might not have made it to 80 degrees until noon, by late July that will be close to the overnight low.


Tuesday, April 3, 2018

Now That That's Done For Now

Another me me me me post.  

The emphasis for the last couple of days was the spring planting, but not veggies (except for one more tomato plant); it was our decorative bed in front of the house.  The old hibiscus bushes I mentioned in my last post were likely 37 years old and hardly alive.  We cut them down and pulled them out, after a trip to the Lowe's for some replacements.  I don't have any before pictures but they were scrawny sticks with a handful of leaves on them.  We got three replacements and a couple of others.


It was a lot of work, but we planted the first two last night after dinner to take advantage of the evening cool down, then were back out this morning at sunrise to do the rest.  We were done by 10 AM.

There are still two that are about the same age in a different flower bed, but they look better.  We'll give them a bit more water and food, and see how they do this summer. 



As I've been trying to troubleshoot my dead oscilloscope, I've gone back to a forum I'd never heard of over and over,  EEVBlog.   Those of you with similar interests might find it a worthwhile stop, too, or already have.  I decided to look around a bit and see if it would be worth my while to join the forum, and stumbled across a thread on leaking alkaline batteries, which we've talked about here before and got a lot of interest. 

The conclusion of the commenters is that both Duracells and Energizers leak far more than they used to, but after that it's speculation on reasons and different views on alternatives.  One of the comments that bears what research I can do (perhaps by buying some) is that the big two are competing on image and perhaps some specsmanship about capacity, while cheap batteries aren't trying to win on capacity but rather on cost.  In the fight for being able to claim better capacity, they may squeeze the room in battery too much and leave out critical elements, such as not leaving enough space for the compounds that remove excess hydrogen that the battery produces during discharge.  It leads to the conclusion that the cheaper batteries may be better. 

Consensus is that lower tier brands like Kodak, Sunbeam, Fuji, Panasonic and Sony make good alkalines that don't leak as often, and that Panasonic's Eneloop NiMH (Nickel Metal Hydride) rechargeable batteries are a good substitute.  I have eight  Eneloop batteries for a couple of radios I use regularly and they do seem to be better than the non-branded NiMH batteries I've used. 

I'm not in a position to start replacing all the alkalines in the house with Eneloops, I don't even know how many there would be to replace, but I think I've bought my last Duracells.




Monday, April 2, 2018

It's Back to Spring Planting

Yesterday's pulled pork right out of 14 hours in the smoker.  It's like an Easter ham except for being a pork shoulder and not a thigh.


February was pretty warm around here, I ran the air conditioner almost every day, even the separate A/C in the shop while I was out there.  March started out quite a bit cooler, and the air wouldn't cycle on at all, until about the calendar start of spring.  When it's cooler outside, that makes it easy to put off doing the spring planting.  I mentioned doing some back in February, and that new hibiscus is doing fine, but some of the older bushes need to be replaced.  These are hibiscus bushes that are as old as the house and they just seem to be dying of old age.  Everything else is growing except these two old bushes.

We had the first tomatoes out of the garden this weekend - and these from a plant that we put in last spring, made it through the winter, even lost some leaves during the only frost we had.  Time to add some more tomato plants, dig out those old hibiscus bushes, and replace them with something new.  Before it gets into being May.