In my continued efforts to develop an alternative method of flight, I recently ran into a setback involving my inability to construct an appropriate air-moving device using my go-to materials of foam-core and balsa wood. I created a spreadsheet to perform a sort of finite element analysis-slash-faux integration of my intended propulsion mechanism, the result of which indicated a frankly ridiculous amount of lift on a particular moving surface, enough lift that I must assume I made an error in my calculations, or perhaps the underlying assumptions, despite my inability to locate such an error.

These two events led me to pursue a different line of inquiry, using, rather than moving air, a moving surface. Construction is much simpler. However, I think my materials are still too heavy and my motor too weak.

Which leads me to another thing I don’t believe. I went to the local RC hobby store with a mind to finding both a better power to weight ratio and a hands-off control scheme. The man there told me that the little airplane motor he was bouncing in one hand was a 1 horsepower motor. To my mind, a 1 HP motor is about the size of my head and several times as heavy. I know it’s a neodymium motor, which needs much less magnet mass, but that just seems unreal.

Also, I have finally been able to define a psychological block within myself when it comes to the pursuit of cool things. The less sure I am that it’ll work, the more reluctant I am to spend money on it. This one factor explains much of the stress I feel and my desire to plan and/or calculate everything before I start anything. Maybe not a grand revelation, but personally quite interesting.

Nephew,

I understand you’ve been thinking about the nature of reality and purpose of existence, and thought you might find it helpful to read my opinions on the matter.

There are three main schools of thought regarding the basis of reality and how and why everything happens. They are: magic, science, and religion.

Magic we can dispose of quickly. If the universe operated based on magic, there would be no consistency. Reality would bend to the will of whomever wanted it the most. Everyone would get everything they want all the time, unless someone is actively opposing them. Or, magic is so difficult, and its results so minimal and unpredictable, that it could almost never be considered to work at all. Which leaves us trying to explain everything that magic doesn’t.

That leaves us with science and religion. The basic idea of science is that we can observe the world around us, notice causes and effects, and predict future effects based on those observations. Science tests ideas, and accepts only those that can be proven true. It can be very unsatisfying, because it can be very slow to determine and accept new facts, and even those facts are known to be, at best, approximations that can be disproven tomorrow if some new discovery invalidates it. There’s a lot of arguing and disagreement, and no one accepts anyone else’s word for anything. At any given moment, the sum total of scientific knowledge can be considered humanity’s best guess as to how the universe works, which makes it really discouraging when you want to know the reason and purpose of everything. No one knows how to test for it yet.

Religions of all sorts boil down to one basic idea: God did it. Or, a god did it, or a bunch of gods did it. In any case, it’s the easy answer to all questions. Why is the sky blue? God did it. Why did this rotten thing happen? God has a plan. What happens after we die? God takes care of it. I’m not saying it’s the right answer, or even a good answer, but it does cover a lot of territory. Except it isn’t really an answer; it’s what logicians call an “appeal to authority.” This omniscient, omnipotent thing that loves you is taking care of it, so don’t worry about it. It also stops all questions. God did it. How? He’s God; he can do that. If you can honestly accept “God did it” as the answer that makes everything okay, it’ll make you feel good, but it doesn’t tend to lead to further investigation. It’s like knowing your Dad is there to take care of you, except Dad lives in the sky and makes lightning. It’s comfortable.

Obviously, I come down on the side of science. I can’t honestly say we’re here for any particular purpose. We exist; that’s all I need. I can’t say there’s anything after death. In fact, I seriously doubt it. But I am willing to be wrong, and must admit there are times I kind of like the idea. But I’m not willing to base my life on the hope that I’ll get a prize when it’s over. It doesn’t mean I’m not moral; it does mean my morality is not based on the fear of eternal punishment, but rather on the idea of minimizing the pain I cause others here and now, because I want to live in the sort of world where everyone acts like I do.

Did any of that make sense?

It finally occurred to me to look up the equations for stress in a rotating disk instead of trying to work them out myself, which I’ve obviously been out of college too long to be able to do anymore. Of course I found them, along with evidence that I’d looked for them previously, which is odd but irrelevant.

Short course in mechanics of materials: you apply force to a material, it deforms (bends, stretches, whatever). This leads to internal forces in the material, which we call stress. The amount of stress depends on the cross-sectional area of the material in the direction of the force. Any material can only take a certain amount of stress before it breaks.

So, the general idea is to figure out how much force you want to put on an object, and then figure out how beefy you have to make it so it can survive the resulting stress. That’s called engineering.

Anyhoo. These equations I’ve got have variables for material density, rotational speed, and more radii than you can shake a slide rule at. There’s one for stress in the radial direction, and one for the tangential direction. It all makes prefect sense.

Except there’s no thickness variable. There’s an assumption that thickness is much less than diameter, which means you don’t have to worry about stress on the surface versus stress in the center. But according to these equations, it doesn’t matter how thick the disk is; 1/16″ or 1″, the stress will be the same, if the diameter is relatively huge.

Which makes sense for a rotating disk. If it’s thicker, then the new material is also rotating and having to deal with its own stuff, so it can’t help reduce the overall stress level in the way that making a column thicker would help hold up the building better.

Which means this does me no good in determining how thick I need to make my disks. Or, looked at the other way, I can make them as thin as I want as long as they’re still stiff enough not to flutter in the breeze.

Oh, I never told you why I want rotating disks, did I? Hmm, weird.

My letter to Parker Griffith:

Under no circumstances are you to allow the Democratic majority to pass the “Slaughter Solution” which would let the House declare a bill passed without your having voted on it. It goes against every principle that representative democracy is founded upon. In fact, it would signal the end of representative democracy within the halls of Congress.

I’m not just asking you to vote against it. Put a stop to it. Be a politician. Persuade people. Make everyone understand that the Republicans will use the same tactic to cram through the bills most offensive to the Democrats when they regain the majority, if that’s what it takes.

Even if I were an ardent supporter of ObamaCare, I would still oppose this attempted coup. The principle is more important than any policy issue.

I can’t promise I will vote for you if you manage to block the Slaughter solution, but if you agree to abandon the legislative process, I can promise that you, and as many of your colleagues as electorially possible, will be out of a job come November. Assuming you don’t “deem” a Constitutional amendment extending your terms indefinitely.

–

And the aftermath:

I am extremely disappointed in the results of tonight’s vote on ObamaCare.  Congress failed to listen to us, the People.  You acted against our strongly expressed desires to such extent that you can no longer be considered representative of us.

Until ObamaCare is repealed or overturned, the only thing I want you to do is obstruct.  I don’t care if you pass another bill, ever.  Require all bills to be read aloud.  Don’t allow anything to be done by unanimous consent.  Whatever you have to do.

If Congress is not going to act on behalf of the country, I want you to make sure it does as little as possible.

The pharmacy gave me lispro insulin instead of my usual 75/25, and I didn’t realize until after I took my shot. So I’ve got about 4 times as much insulin as usual trying to counteract my supper. I’m not sure I have enough sugar in my larder for this circumstance.

If I don’t post an update to this by about noon tomorrow, I’d appreciate it if someone would call 911.

12:52 AM:  So far, so good.  One crisis passed.  Stay tuned.  Rest assured Wal-Mart will hear of this.  I’m kind of afraid to go to sleep.

UPDATE:  The alert is hereby canceled.  I feel like crap, but I’m good.  Thank you for your participation in this really inappropriate use of internet resources.

UPDATE:  And… I am appeased.  The lesson for today, kids, is this: always talk to the manager.  The rank and file have neither the authority nor the inclination to keep you happy.  Also, make sure your doctor writes down the same drugs he actually wants you to take.  Also also, trust no one who cares less than you do.  Or who cares as much as you do about something different.

That last one isn’t really relevant, but I think it’s good advice anyway.

I just finished building a working by-God Van de Graaff generator. It produced sparks I could feel, and in darkness see.

Granted, the range of those sparks was maybe 1/32 of an inch, and I only got a half dozen of them before a flaw in my dielectric belt caused the whole thing to freeze up.

But that’s beside the point. I did it. I solved the major design problems and was able to put together a machine that achieved its purpose. And that’s awesome.

Now I need to come up with a way to keep polyester ribbon from fraying itself to oblivion under stress….

UPDATE:  By changing to a latex rubber belt, I managed to correct the self-destructing belt problem.  Woo!  Unfortunately, the belt now has a strong tendency to crawl to the end of the upper roller, up the little flange on the end, and hang out there.  Surprisingly, it still works, with an arc length of maybe 1/4 inch, but not as well as it could.  I need to put either a hump or a divot in the middle of the roller.  A hump would do better at keeping the belt flat, I think.

UPDATE 2:  The hump on the roller worked.  The power is now mine to command.  Mwa ha ha and so forth.

That is the entirety of NASA’s 2009 budget. The return-to-the-moon budget was between 1 and 3 billion. By canceling the lunar return program, the feckless fucktard occupying the White House has saved the American taxpayer precisely jack shit.

$3,000,000,000 / 300,000,000 people = $10 / person. 2.7 cents per day, over the course of one year. Or, we could go to the God damned moon.

It turns out I’m very clever.

A few years ago I had an idea for a new way to apply established aerodynamic principles to produce a new sort of flying machine. The problem was that, while the math worked out, I didn’t have the facilities to produce a physical test item. Plus, this is my idea; I didn’t want to give it to my employer despite the fact that they kinda do this sort of testing all the dang time. Throw in the fact that I’m like a schizophrenic with ADD on meth when it comes to projects, and you begin to understand why I hadn’t made much progress.

Anyway, years pass. I learn new skills. I dream up construction and manufacturing techniques. I discover technologies and materials of which I had been unaware.

Long story shortish: a couple night ago, I attached my foam-core compressor to my salvaged fan motor and successfully applied lift to an object weighing 25 grams.

Okay, that doesn’t sound like much. But it proves that the principle is sound. Given how little optimization I did on the design, the fact that I got any success at all is, frankly, monumental.

I mean, even the Wright brothers’ first flight was only 12 seconds, in a plane made out of toothpicks.

Now that I know it works, I can proceed out of the balsa wood and styrofoam phase and into something I can wow people with. And then, I WILL RULE THE WORLD!!!!

Ahem, sorry.

They’re usually in the form of a wand vibrating back and forth or a thing spinning in a circle with a line of LEDs on the end. I saw one of the spinning ones yesterday, and it gave me an idea.

Instead of having just one vertical line at the end of a spinning arm, make an entire array from the center out to the edge, both sides, plus the top and the outside edge. Using the same persistence of vision/fast-blinking light method, you can draw a 3D image without a lot more effort than the current 2D system.

It would be heavier, and require more power to spin it, but it’s still just a 2D display. No actual new technology would be required. You could do animation and everything. And the intriguing possibility of seeing the outside and inside of the projected object at the same time.

It wouldn’t be freestanding in open space, but still pretty awesome.

The Japanese have probably invented it already.

We all know a black hole is point in space where gravity is so intense that not even light can escape its pull. Well, sort of. Close enough, anyway.

We also know that, of the four known fundamental forces of the universe, gravity is the weakest. I think the order is Strong force, weak force, electromagnetism, gravity, but I might have the second and third switched. Electromagnetism is the only other one that has influence at a distance greater than atomic radii.

The weird idea I had arises from these two facts. It is this: is it possible for an electromagnetic equivalent of a black hole to exist? An electromagnetic field so strong that no charged particle or wave bundle could escape its pull.

As far as we know, electromagnetic phenomena only occur in the form of dipoles. That is, with a north and south pole and an orientation. Charged particles are attracted to one of the two poles, and move along the lines of force to get there. (I know, it’s more complex than that, electrical charges in magnetic fields, right hand rule and all that. It’s 1 AM; leave me alone.) Gravity, by contrast, is monopolar. Everything gets pulled directly toward the center regardless of relative position. So, a collapsed EM field generator might be self-extinguishing.

But if they can exist, do they? Because EM force is stronger than gravity, it should be possible to achieve EM collapse before gravity collapse. Light wouldn’t be able to escape either one, but a sufficiently fast-moving neutral particle could escape an EM hole, or even pass through unaffected.

Anyway, just a random notion I thought I’d share.