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.

U-V

Ultra microscope 1903
Ultra violet - Ritter 1801
Ultra violet observations of the Sun by rockets 1951
Uncertainty principle – Heisenberg 1927
Unified field theory – Einstein 1955
Units – rationalised system – Heaviside 1892
University College London founded 1827
Uranium – isolation by Eugene-Melchoir Peligot 1841
Uranium discovered 1798
Uranus discovered – Herschel 1781

V particle discovered 1947
Van de Graaff generator 1931
Van der Waals 1837- 1923
Van der Waals equation 1872
Vanguard I 1958
Variable star – Mira Ceti was the first to be observed 1638
Venus – transit of Venus observed 1769
Vernier 1580-1637
Vesta - third asteroid discovered - Heinrich Olbers 1807
Viscosity - Jean d'Alembert 1752
Volta 1745-1827
Voltaic pile 1800
Von Laue 1879-1960
Voyager space probes pass Saturn 1980
Voyager spacecraft discovers the rings of Jupiter 1979