Apr 232009
 

This is a relatively commonly reproduced drawing:

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It comes from the English-language translation of Eugen Sangers report “A Rocket Drive for long Range Bombers,” which described a wartime German project to develop a global-range hypersonic rocket bomber. The graphic above is sometimes used to show that the Germans were working an atomic bomb… how else to explain the vast level of damage represented?
Well, the damage does *not* come from a single bomb, conventional, nuclear or otherwise. It comes from a *lot* of high altitude conventional bombs. The “bell curve” graph shows the effect of a statistically large number of bombs being dropped on Manhattan, all aimed at the same point and a normal distribution “miss pattern” being introduced. What Sanger’s showing is the sort of damage/square meter that New York could experience if it was plastered with dozens or hundreds of bombs, not one single device.

As with light, sound and gravity, a bomb going off produces, to first order, an inverse square law damage graph. This means that the further away you get, the softer the effects… and it means that the *closer* you get, the damage becomes exponentially greater. In theory, the graph, even for something like a firecracker, would go to an infinite spike at zero radius. Something like this:

What stops that from being true is that bombs are of finite size; the graph begins to break down roughly at the surface of the bomb. So it’s a spike until you get in to the radius of the actual bomb (a meter or two for a truly badass bomb), and then it goes fuzzy. But the Sanger graph shows not a spike, but a bell. The “exponential spike” as you get closer to ground zero seems to crap out at about a radius of one *kilometer.*

Each Sanger bomb could in principle wipe out a few city blocks, perhaps take out a skyscraper or two. But as we saw on Islam Outreach Day in 2001, it doesn’t take a nuke to create that sort of damage. A nuke, even a small one, does *vastly* more damage.

The Silverbird, like the A-9/A-10, would have been a spectacularly ineffective weapons system without atomic warheads. The reason why these projects got the official support that they did is because as weapons of *terror* they could well have been quite effective.

Why is this graph shown occasionally to represent a nuke when a few seconds reflection shows that the idea is silly (and a glance at the actual source documentation utter rejects the idea)? Well, on one hand, there’s sheer laziness. Once someone gets it in their head that the Nazis were close to having nukes, anything they see that says “The Nazis were close to having nukes” automatically looks reasonable. On the other hand, there are motives less pure than laziness: the desire of many to suggest that the Nazis were much more advanced than they really were. Oddly, this drive seems to exist on both sides of the Nazi/anti-Nazi debate: the pro-Nazi tards want to believe that the Nazis really were some race of supermen, because it makes them think that *they* are supermen too. And some anti-Nazis – in particular, a lot of eastern European authors and the like – also seem to see the Nazis as supermen. How else to explain how a relatively small nation could rise so quickly from economic disaster to nearly dominate and exterminate the rest of Europe? Both views are, of course, wrong. The Nazis were just people – albeit people who accepted an evil and crazy economic and social philosophy. And they were people who were nowhere near having nukes.

And there’s a third motive… profit. It makes a better story if the Sanger “Silverbird” was to drop a nuclear device on New York City than if it was just going to drop a three-ton conventional bomb. All the better to sell “documentaries” and books.

 Posted by at 8:19 pm
Apr 232009
 

On occasion, ATK-Thiokol burns off large quantities of scrap/excess solid rocket propellant. This is often propellant left over from casting operations, or propellant that has been trimmed out of cast motors, or old test samples, whatever. They can fire off thousands of pounds of the stuff at a time. It basically just sits there blazing white hot and emitting vast clouds of smoke, which ranges from dirty-orange to pure white, depending on what’s being burned and the sunlight conditions. The clouds of smoke, largely composed of aluminum oxide, water vapor, carbon dioxide and some interesting things like hydrochloric acid, typically floats up into the sky and dissipates at high altitude. And sometimes they screw it up.

Returning today from Ogden, at 5:03 PM I noticed the clouds of smoke starting to rise over the hills (I noted the time because it seemed very late for a major rocket test… the RSRMs, for example, are typically scheduled for 1PM on Thursdays, then I remembered that propellant burns are typically done after normal working hours so that most of the employees are gone). It looked pretty normal at first. But as I got closer, it became clear that whoever was in charge of making sure that the weather would co-operate was apparently a little off. The cloud of acidic smoke drifted *downwards* through Faust Valley (a bit appropriate, that), and then continued down into the farms below. It continued to hug along the ground heading northwest past Thatcher and Bothwell, crossing Interstate 84. I drove to a few locations where I could get halfway decent photos of it; and even though I only skirted the edge of the fume, I got one *hell* of a headache. I shudder to imagine the poor schmoes who got the full force of it. It seemed to take five to ten minutes to blow past any one location.

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 Posted by at 7:38 pm
Apr 222009
 

From the Tennessean:

A Cheatham County woman who said she was beaten after giving a homeless man a cheeseburger outside a Nashville McDonald’s last year is suing the restaurant, a nearby liquor store and her alleged attacker.

According to the suit, both husband and wife allege that the McDonald’s and the nearby liquor stores, “knew, or should have known, that their mode of operating their particular stores attracted persons prone to criminal acts and provided an environment to crime.”The suit states that both stores failed to provide a reasonably safe place for their customers.

Why is this the best lawsuit ever? Because if she wins, then any company located in The Crappy Part Of Town has a “get out of town FREE” pass. Companies will initially be forced to leave bad neighborhoods due to the threat of getting sued; but they will soon come to understand that this isn’t a problem, it’s an opportunity. They can bail at at no risk of a PR disaster. “Why are you moving from Detroit to Idaho, and leaving all those people without jobs?”

“Why, the courts have ruled that it’s the companies responsibility to not do business in crime-riddled areas. Gee, we’d love to stay, but… shrug. What can ya do? See ya!”

<> Companies like Dominos Pizza and UPS – and more specifically, their delivery people -should be overjoyed.

 Posted by at 6:18 pm
Apr 212009
 

Two more photos from the Hiller museum. At least in 2004, there was a display set up of “future flight,” the bulk of which was stuff from Boeing. included were CAD diagrams of a supersonic flying wing airliner. Another example of where improved camera technology and skill would be of value; still, the design is shown fairly well.

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 Posted by at 10:29 pm