Template:Selected anniversaries/May 13: Difference between revisions

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||1975: Marguerite Perey dies ... physicist and chemist ... she discovered the element francium by purifying samples of lanthanum that contained actinium.  Pic.
||1975: Marguerite Perey dies ... physicist and chemist ... she discovered the element francium by purifying samples of lanthanum that contained actinium.  Pic.
||1985: Revaz Dogonadze dies ... chemist and physicist. He was the first to view a chemical electron-transfer process as a quantum-mechanical transition between two separate electronic states, induced by weak electrostatic interactions between the molecular entities represented by the states. Pic search: https://en.wikipedia.org/wiki/Revaz_Dogonadze


||1985: Police release a bomb on MOVE headquarters in Philadelphia to end a stand-off, killing six adults and five children, and destroying the homes of 250 city residents.
||1985: Police release a bomb on MOVE headquarters in Philadelphia to end a stand-off, killing six adults and five children, and destroying the homes of 250 city residents.

Revision as of 07:44, 21 November 2019