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#2
November 3rd 14, 06:54 PM
posted to rec.radio.amateur.antenna
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No antennae radiate all the power fed to them!
Jerry Stuckle wrote:
On 11/2/2014 6:17 PM, wrote: Jerry Stuckle wrote: On 11/2/2014 4:55 PM, wrote: Lostgallifreyan wrote: wrote in : There is no undiscovered magic in superconductors. There was no magic in any of the materials used for Gemini and Apollo either, but countelss things were learned just by using them out there. Care to name a few specifically from Genini and Apollo? And BTW, 99.9% of the materials used is aluminum. Much of the medical monitoring technology came out of the early space program, for one thing. So did advances in propulsion systems and remote controls (more than just model planes and cars) for another. True, but none of that came from throwing the stuff up into space just to see what would happen. No, but they all came from the space race (Mercury, Gemini and Apollo programs) - which was your question. Nope, my question was what came from throwing the stuff up into space just to see what would happen. Perhaps I should have phrased it more clearly. And since then, there have been all kinds of experiments on various orbiting objects such as MIR, Skylab, the space shuttle and ISS. Many discoveries are coming out of it - although I don't know offhand what's been put to use yet, since there is no manufacturing in space. But thinks like perfectly round ball bearings and new ways to make pharmaceuticals come to mind. All of which revolve around the concept of doing something dynamic in a zero gravity environment. None of it has anything to do with some material showing some new and hitherto unknown property simply by being in such an environment. Take ball bearings for example. It has long been known that absent an external force, i.e. gravity, that a liquid will form into a sphere due to surface tension. -- Jim Pennino |
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