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History of Physics and Astronomy


This version sorts the important events by name. The lifetimes of people are highlighted in blue, important people are in bold blue.

E

Earthquake waves used by Oldham to prove that the Earth has a core 1906
Eclipse of the Sun 1560
Eddington 1882-1944
Eight fold way 1961
Einstein 1879- 1955
Einstein Nobel prize for Physics 1921
Electric arc Humphrey Davy 1801
Electric charge - distinction between positive and negative - Charles du Fay 1733
Electric motor - Faraday 1821
Electric motor Jacobi 1834
Electric light bulb Edison 1878
Electrolysis Faraday's laws 1832
Electromagnetic induction 1824
Electromagnetic theory Maxwell 1864
Electromagnets - Sturgeon 1820
Electron particle named by Stoney who also estimated its mass 1874
Electron name proposed for the fundamental unit of charge (?)1881
Electron negative energy states Dirac 1928
Electron relativistic quantum mechanical description - Dirac 1928
Electron diffraction Davisson, Germer and Thomson 1927
Electron- microscope 1931
Electron microscope Ruzcka 1937
Electron spin Uhlenbeck and Goudsmit 1925
Electronic computer developed - Turing 1943
Electronic computer ENIAC general purpose 1946
Electrons 'discovered' J.J.Thomson 1897
Electroscope Haukesbee 1705
Electrostatic accelerator Cockcroft and Walton 1929
Electro-weak forces unification. Weinberg and Salam 1967
Element 104 discovered 1968
Elliptical orbits Sommerfield 1916
Empedocles- optical tentacles theory of vision 444 BC
Enigma decoded Bletchley park 1943
Entropy idea proposed Clapeyron 1834
Entropy Clausius 1865
Eratosthenes size of the Earth- 24000 miles 275-194 BC
Eta 0 discovered 1962
Euclid laws of reflection of light 300 BC
Eudoxus spheres theory 400-355 BC
Everest- first ascent Hilary and Tensing 1953
Expansion thermal - Henning's method 1907
Expansion of Universe demonstrated - Hubble 1929
Explorer I 1958
 
 
 
© Keith Gibbs 2007