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1842
Discovery of the Doppler Effect
Discovery of Erbium (Mosander)
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20 January 1842 Birth of Thege Miklós Konkoly in Pest (Budapest), Hungary
26 February 1842 Birth of Nicolas Camille Flammarion in Montigny-le-Roi, Haute-Marne, France
12 November 1842 Birth of John William Strutt, 3rd Baron Rayleigh
1842 Death of Pierre-Joseph Pelletier
1842 Death of Sir James Ivory
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