Anniversaries

20
Apr

April 20, 1918 - Birth of Kai Siegbahn, Nobel Prize for his contributions to the development of high-resolution laser spectroscopy

24
Apr

April 24, 1960 – Death of Max von Laue, Nobel Prize in Physics for his discoveries on X-ray diffraction

24
Apr

April 24, 1968 - Death of Elizaveta Karamichailova, a pioneer of early 20th-century nuclear physics

25
Apr

April 25, 1900 – Birth of Wolfgang Pauli, Nobel Prize for the Exclusion Principle, proposing a fourth quantum number and theorising about the neutrino

27
Apr

April 27, 1970 - Dubnium, element 105 on the periodic table, was discovered

29
Apr

April 29, 1894 – Birth of Marietta Blau, identified traces of atomic particles that allowed protons to be distinguished from alpha particles

29
Apr

April 29, 1983 - Birth of Harold Clayton Urey, pioneer in working with isotopes

30
Apr

April 30, 1897 - Joseph J. Thomson discovered the electron

03
May

May 3, 1933 - Birth of Steven Weinberg, Nobel Prize for the study of elementary particles

03
May

May 3, 1892 - George Paget Thomson was born, Nobel Prize for his studies on the diffraction of electrons in crystals and the demonstration of their wave properties

04
May

May 4, 1870 – Birth of Antonius van den Broek, the physicist who established the direct correlation between the charge of the atomic nucleus and the periodic table

08
May

May 8, 1794 - Death of Antoine Lavoisier, considered the father of modern chemistry

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