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| 1911: | Kamerlingh-Onnes discovers superconductivity
Rutherford proposes the nuclear atom (based on Geiger and Marsden 1908) Wilhelm Wien receives Nobel Prize in physics (heat radiation) |
| 1912: | Armstrong Invents a Sensitive Regenerative Amplifier
Nils Gustaf Dalén receives Nobel Prize in physics (automatic regulators for gas accumulators)
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| 1913: | Ford's Assembly Line
Niels Bohr introduces the theory of atomic structure Bragg and Bragg (father & son) study X-ray diffraction from crystals Heike Kamerlingh-Onnes receives Nobel Prize in physics (low temperature matter - led to liquid helium)
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| 1914: | Transcontinental Telephone Service
Panama Canal Opens Franck and Hertz show evidence of quantized energy states in atoms Moseley shows relationship between X-ray frequency and atomic number Max von Laue receives Nobel Prize in physics (X-ray diffraction) |
| 1915: | Einstein proposes theory of general relativity
Sir William Henry Bragg and Sir William Lawrence Bragg (See 1913) receive Nobel
Prize in physics (X-ray diffraction)
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| 1916: | Millikan performs careful measurements of photoelectric effect - confirms Einstein |
| 1917: | Einstein Predicts Stimulated Emission of Light from Atoms
Charles Glover Barkla receives Nobel Prize in physics (Röntgen radiation) |
| 1918: | Max Karl Ernst Ludwig Planck (See 1900) receives Nobel Prize in physics (energy quanta) |
| 1919: | Afghanistan declares independence from the United Kingdom
Eddington et al. measure gravitational deflection of starlight - confirms relativity Johannes Stark receives Nobel Prize in physics (Stark effect - splitting spectral lines) |
| 1920: | Congress passes the 19th Amendment (Women's right to vote)
Charles Edouard Guillaume receives Nobel Prize in physics (anomalies in nickel steel alloys) |