Template:Selected anniversaries/April 17: Difference between revisions

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||1996 – Piet Hein, Danish poet and mathematician (b. 1905)
||1996 – Piet Hein, Danish poet and mathematician (b. 1905)
||Horace Richard Crane (d. April 19, 2007) was an American physicist, the inventor of the Race Track Synchrotron, a recipient of President Ronald Reagan's National Medal of Science "for the first measurement of the magnetic moment and spin of free electrons and positrons".[3] He was also noted for proving the existence of neutrinos.


||2014 – NASA's Kepler space observatory confirms the discovery of the first Earth-size planet in the habitable zone of another star.
||2014 – NASA's Kepler space observatory confirms the discovery of the first Earth-size planet in the habitable zone of another star.


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Revision as of 14:11, 29 October 2017