Comparison Of Important Tools, On both sides of the Space race |
Comparison Of Important Tools, On both sides of the Space race |
Feb 19 2006, 05:26 PM
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Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
Here are two nearly identical images. One of these was used by Sergei Korolyev, the other by Wherner von Braun. Can you tell which is which?
And here's a more interesting question -- how many of us here on UMSF have actually *used* a slide rule in their lives? I know I used a slide rule, even in a completely non-engineering field -- I'd use it to do basic scaling functions when doing layout on newspapers and such. Since both Neil Armstrong and Buzz Aldrin took their own personal slide rules to the Moon, people were obviously using them only 35 or so years ago. So, how many of us have ever used one? -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Feb 20 2006, 06:25 AM
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
I've still got my slide rule. Though once the calculator age, I usually used it mostly as a log ruler for making quick and dirty graphs without log graph paper.
I've also got at least one of the BAMBOO slide rules my brothers had in high school. Dense, solid, oddly slippery, and very stable mechanically. A most interesting material. A neat curiosity I have is my first Calculator. A Melcor 1000 (I think.. have to dig deep in a drawer to find it)... the first $99 full-function scientific calculator from 1975, advertized in Scientific American (mail order only) It's probably the only calculator that was ever advertized and sold as having a defective main chip! It literally comes with an errata-slip that explains that the Cosine of zero is not zero but is actually one. Apparently, somebody, I presume TI, since it's not a reverse-polish-notation calculator, made up a whole batch of very very very slightly defective calculator chips and somebody else was willing to use them in a commerical product! |
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