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Denmark 1944 – Ole Rømer

Ole Rømer (1644–1710) was a Danish astronomer best known for making the first calculation of the speed of light, which he did in 1676 by comparing the observed time of eclipses of Jupiter’s satellites with the theoretically predicted times. In 1944, Denmark commemorated the 300th anniversary of his birth with this stamp.


SG number
Face value
Colour
342
20 øre
Brown
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