Physicist / Astronomer Stamps

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    1921 Nobel Physics Prize for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect


  • Eötvös Lorand Baron von

Born: 27 July 1848 in Pest (now part of Budapest), Hungary
Died: 8 April 1919 in Budapest, Hungary


Eötvös is best known that he showed, to a high degree of accuracy, gravitational mass and inertial mass are equivalent



1973 Nobel Physics prize for experimental discoveries regarding tunneling phenomena in semiconductors and superconductors, respectively. Born March 12, 1925 in Osaka, Japan. His research led to progress in communications and computer networks. - Stamp also from Sierra Leone SIE1995L29.9



  • Euler Leonhard (1707-1783)


Euler, a Swiss mathematician, worked in number theory, differential geometry, calculus, differential equations. He was author, journalist, educator, inventor, mathematician, astronomer. Born April 15, 1707 in Basel, Switzerland, he is known for creativity. He developed integral calculus, developed theories of lunar motion in 1753 and 1772 and wrote the first calculus book. He lost sight in one eye at age 28 and in the other at age 59. He died September 18, 1783.

Biography


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Biographies of Physicists and Astronomers