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Space News from SpaceDaily.Com brings the space industry professional daily news from the frontier, with contract, bid, launch and on-orbit satellite news as it happens.
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Werner Heisenberg nearly failed his 1923 PhD oral because he could not explain the resolving power of a microscope—or even how a storage battery worked. Experimental physicist Wilhelm Wien wanted to fail him, but his mentor Arnold Sommerfeld defended his brilliance as a theorist, securing a mediocre cum laude—four years before Heisenberg used a microscope thought experiment to explain the uncertainty principle.
1+ week, 14+ hour ago (921+ words) Heisenberg's near-failed 1923 doctorate exposed his weakness in experimental physics, then the microscope returned in his 1927 explanation of quantum uncertainty....
In early 1962, weeks before John Glenn's orbital flight, a NASA mathematician named Katherine Johnson was asked to recompute by hand what the new IBM 7090 had already calculated, because Glenn had told mission planners he would not fly unless she p
1+ mon, 3+ week ago (286+ words) Before John Glenn flew Friendship 7 into orbit in February 1962, he refused to trust the new IBM 7090's trajectory calculations until Katherine Johnson had verified them by hand. She worked the equations for a day and a half. The numbers matched....