December 3rd
1886 Karl Manne Georg Siegbahn, a researcher on x-ray spectroscopy; Nobel Prize in Physics (1924) for his discoveries and researching the field of X-ray spectroscopy, was born.
1933 Paul Crutzen, researcher in the chemistry of the atmosphere; Nobel Prize winner (1995) with Mario Molina and F. Sherwood Rowland for their work in atmospheric chemistry, particularly concerning the formation and decomposition of ozone, was born.