Template:Selected anniversaries/May 2: Difference between revisions

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||1967: Robert Daniel Carmichael dies ... mathematician ... known for his research in what are now called the Carmichael numbers (a subset of Fermat pseudoprimes, numbers satisfying properties of primes described by Fermat's Little Theorem although they are not primes), Carmichael's totient function conjecture, Carmichael's theorem, and the Carmichael function, all significant in number theory and in the study of the prime numbers. Pic: http://matematica.unibocconi.it/autore/robert-daniel-carmichael
||1967: Robert Daniel Carmichael dies ... mathematician ... known for his research in what are now called the Carmichael numbers (a subset of Fermat pseudoprimes, numbers satisfying properties of primes described by Fermat's Little Theorem although they are not primes), Carmichael's totient function conjecture, Carmichael's theorem, and the Carmichael function, all significant in number theory and in the study of the prime numbers. Pic: http://matematica.unibocconi.it/autore/robert-daniel-carmichael
||1972: J. Edgar Hoover dies.  Pic.


||1973: John Robert Vernon Dolphin dies ... engineer and inventor who joined the British Secret Intelligence Service and then became the Commanding Officer of the top secret Second World War Special Operations Executive (SOE) 'Station IX' where specialist military equipment was developed. During his time there his inventions included the Welman midget submarine and the Welbike Parachutists' Motorcycle.  Pic search yes: https://www.google.com/search?q="John%2BRobert%2BVernon%2BDolphin"
||1973: John Robert Vernon Dolphin dies ... engineer and inventor who joined the British Secret Intelligence Service and then became the Commanding Officer of the top secret Second World War Special Operations Executive (SOE) 'Station IX' where specialist military equipment was developed. During his time there his inventions included the Welman midget submarine and the Welbike Parachutists' Motorcycle.  Pic search yes: https://www.google.com/search?q="John%2BRobert%2BVernon%2BDolphin"

Revision as of 12:24, 10 May 2019