Template:Selected anniversaries/June 18: Difference between revisions

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File:Júlio César de Melo e Sousa.png|link=Júlio César de Mello e Souza (nonfiction)|1974: Mathematician and academic [[Júlio César de Mello e Souza (nonfiction)|Júlio César de Mello e Souza]] dies. He is well known in Brazil and abroad by his books on recreational mathematics, most of them published under the pen names of Malba Tahan and Breno de Alencar Bianco.
File:Júlio César de Melo e Sousa.png|link=Júlio César de Mello e Souza (nonfiction)|1974: Mathematician and academic [[Júlio César de Mello e Souza (nonfiction)|Júlio César de Mello e Souza]] dies. He is well known in Brazil and abroad by his books on recreational mathematics, most of them published under the pen names of Malba Tahan and Breno de Alencar Bianco.
|File:Gravity Probe A.jpg|link=Gravity Probe A (nonfiction)|1976: [[Gravity Probe A (nonfiction)|Gravity Probe A]] (GP-A) launched ... a space-based experiment to test the equivalence principle, a feature of Einstein's theory of relativity. It was performed jointly by the Smithsonian Astrophysical Observatory and the National Aeronautics and Space Administration. The experiment sent a hydrogen maser, a highly accurate frequency standard, into space to measure with high precision the rate at which time passes in a weaker gravitational field. Pic uploaded.


||1977: Georgi Delchev Bradistilov dies ... mathematician. Pic.
||1977: Georgi Delchev Bradistilov dies ... mathematician. Pic.

Revision as of 16:52, 7 October 2018