http://www89.pair.com/techinfo/Aerostation/22_1/22_1b.pdf Why Bring up Hydrogen Again? F. Marc de Piolenc ABAC It seems like a reasonable question. After all, hydrogen as lifting gas is the public-relations bête noire of LTA. Didn’t it cause the destruction of the Hindenburg “and all on board?” Isn’t it “explosive?” What do we need it for, anyway? We have helium, [...]
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* The biggest problem with using hydrogen with an airship is the flammability. Could hydrogen be made non-flammable (or non-flammable enough) by making it into a foam? Maybe by using fluorocarbons? * Could you make a autogyro with giant, inflatable helium filled wings? Perhaps using tensairity principles to make the blades rigid enough? What about [...]
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Parabounce makes some awesome toys, especially this pedal powered balloon (link to flash movie):
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[A couple of my friends suffer from insomnia -- thought this might be of interest to them.] http://www.sepracor.com/ Lunesta (eszopiclone), a new non-narcotic prescription sleep aid from Sepracor, received FDA approval on December 15, 2004. Lunesta represents a new treatment option for those suffering from insomnia; Lunesta not only helps people fall asleep quickly, it [...]
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pointed out: 66,000 dead from this Tsunami? Planet population of 6.4 billion? That's 1 person dead out of every 97,106 on the planet. Sounds like the tsunami killed a lot of people, doesn't it? Let's put it into some context. About 52,000,000 people died “natural deaths” in 2001. That works out to be 140,000/day. Assuming [...]
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The copy stand works fine with a small digicam. With the 990, you'd either hold it on top of the lens opening, or use a filter adapter. The copystand has 49mm filter threads and the 990 has 28mm. So you'd get a 28-37 adapter and a 37-49 adapter from www.ckcpower.com (the 28-37 is a specialty [...]
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Michael Gorman, president of the American Library Association, is an idiot too.
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[This is dated 04/15/2000, so attitudes may have changed since then, but this makes me furious. Thank [DEITY] for Google.] http://www.techlawjournal.com/educ/20000415.htm Library of Congress Will Not Digitize Books (April 15, 2000) The Librarian of Congress, James Billington, gave an address at the National Press Club on Friday, April 14, on the role of the Library [...]
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[I've posted this before, but I couldn't find it, so here it is again.] Riding His Time: Bicycle Bill shows off his pedal-powered home. Pedal Powered For bicycle mechanic Bicycle Bill, riding a stationary bike isn't just exercise–it's a way of life. Bicycle Bill lives downtown in a pedal-powered home he designed and built himself. [...]
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Doodle Bug footlaunched powered hang glider. The Doodle Bug. Conceived in January 1999, the Doodle Bug was designed to meet a market opening for a compact supine powered harness that requires no major modifications to an existing hang glider wing. The prototype flew in late February and series production started mid June. Since then the [...]
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