|
Les Plus Grands Scientifiques
Par Classement |
Par Pays |
Par Nom |
Par Genre |
Par Année |
Contact |
#: 391 - 400
| # | Nom Année Pays Science |
Réalisations | |
| 391 |  |
Henry Norris Russell 1877-1957 USA Astronomie |
used photographic methods to measure stellar parallaxes, leading to the discovery of the relationship between absolute magnitude and spectral types of stars; a plot of this relationship is now called a Hertzsprung-Russell diagram (or H-R diagram) |
| 392 |  |
Bernhard Schmidt 1879-1935 La Suède Astronomie |
invented and constructed the first Schmidt reflecting telescope using a corrector plate he devised to eliminate aberration of the image |
| 393 |  |
Arthur Eddington 1882-1944 Royaume-Uni Astronomie |
first to confirm Einstein's prediction that light will bend near a star; discovered the mass-luminosity relation for stars; theoretically explained the pulsation of Cepheid variables |
| 394 |  |
Harlow Shapley 1885-1972 USA Astronomie |
discovered the size of our galaxy and the direction of its center by studying the distribution of globular clusters; determined the orbits of many eclipsing binary stars |
| 395 |  |
Edwin Hubble 1889-1953 USA Astronomie |
first to measure distance to the Andromeda nebula, establishing it to be a separate galaxy; later measured distances to other galaxies and discovered that they recede at a rate proportional to their distance (Hubble's law) |
| 396 |  |
Walter Baade 1893-1960 Allemagne Astronomie |
discovered the asteroids Hidalgo and Icarus; established two different stellar classes: the younger, hotter ``Population I'' and the older, cooler ``Population II'' |
| 397 |  |
Georges-Henri Lemaitre 1894-1966 La Belgique Astronomie |
advanced idea that the Universe originated as a small, dense ``cosmic egg'' that exploded and set its expansion into motion |
| 398 |  |
Rudolph Minkowski 1895-1976 Allemagne Astronomie |
divided supernovae into Types I and II; optically identified many of the early radio sources |
| 399 |  |
Bernard-Ferdinand Lyot 1897-1952 France Astronomie |
invented the coronagraph |
| 400 |  |
Otto Struve 1897-1963 La Russie Astronomie |
made detailed spectroscopic studies of close binary stars; discovered interstellar matter (H II regions) |