All of the four coins in the series were issued on 7 October 2013 and their motifs were Niels Bohr’s atomic model, Hans Christian Ørsted’s experiment demonstrating electromagnetism, Ole Rømer’s diagram describing the speed of light and Tycho Brahe’s constellation Cassiopeia accentuating the star Stella Nova. On the obverse of the coin is a portrait of the Queen designed by the sculptor Lis Nogel. The portrait was created for the coins to mark the Queens 70th birthday in 2010. The scientist coin series comprises four different 500-krone silver coins and four different 20-krone coins for circulation. For collectors a proof version of the 20-krone coins were minted.
To mark the centenary of the publication of Niels Bohr’s atomic theory, Danmarks Nationalbank issued a new series of coins with scientific theories developed by Danish scientists as their common theme.
Niels Bohr - Atomic model
H.C. Ørsted - Electromagnetism
Ole Rømer - The speed of light
Tycho Brahe - Stella Nova