Template:Selected anniversaries/October 21: Difference between revisions
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||1959 – U.S. President Dwight D. Eisenhower signs an executive order transferring Wernher von Braun and other German scientists from the United States Army to NASA. | ||1959 – U.S. President Dwight D. Eisenhower signs an executive order transferring Wernher von Braun and other German scientists from the United States Army to NASA. | ||
|| First attempt at Project Ford West fails. | || First attempt at Project Ford West fails: the copper needles fail to disperse. | ||
||1967 – The Soviet space probe Venera 4 became the first spacecraft to perform direct in situ analysis of the environment of another planet (Venus). | ||1967 – The Soviet space probe Venera 4 became the first spacecraft to perform direct in situ analysis of the environment of another planet (Venus). | ||
Revision as of 19:02, 27 October 2017
1914: Mathematics and science writer Martin Gardner born. His interests will include stage magic, scientific skepticism, philosophy, religion, and literature.
1958: National Pareidolia Day declared in the United States.
1969: Mathematician and academic Wacław Sierpiński dies. He made important contributions to set theory (research on the axiom of choice and the continuum hypothesis), number theory, theory of functions, and topology.
2017: Green Spiral 9 feels more green than ever, according to new chromatographic analysis.