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Originally posted by Wildbob77
When I saw the nuclear power plant, I wondered how do you safely get a nuclear power plant in orbit?
The potential downside of failure in that launch would be huge.
2 PHYSICAL CHEMISTRY, E. A. Moelwyn-Hughes, Pergamon Press, Oxford, 1965. Page 224: Rutherford and Geiger found the number of alfa-particles ejected per second from 1 g of radium was 3.4 x 1010 (k=1.26 x 10-11 sec-1 , later determined by Madam Curie at 1.38 x 10-11 ). Each particle carries two units of positive electricity. This will produce 34 zillion alfa - particles per second, at 4.5 Mev. The number of charges per second, yields huge a amperage which, when stepped down to normal 120 VAC, is staggering. Page 230: 1 atom of radium expels one alfa-particle producing 1.5 billion ions, at 4.5 Mev. Page 231: “One alfa-particle has more than sufficient kinetic energy to bring about all the ionizations which stand to its credit”, and is “..quantitatively sound”.
Originally posted by hisshadow
Just as a note, impulse drive on startrek is provided by ion engines.
The hook-loop fastener was invented in 1941 by Swiss engineer, George de Mestral who lived in Commugny, Switzerland. The idea came to him one day after returning from a hunting trip with his dog in the Alps. He took a close look at the burrs (seeds) of burdock that kept sticking to his clothes and his dog's fur. He examined them under a microscope, and noted their hundreds of "hooks" that caught on anything with a loop, such as clothing, animal fur, or hair.  He saw the possibility of binding two materials reversibly in a simple fashion, if he could figure out how to duplicate the hooks and loops.