New circulating and silver commemoratives:
'
Scientific theories developed by Danish scientists'
To mark the centenary of the publication of Niels Bohr's atomic theory,
Danmarks Nationalbank has issued a new series of coins with scientific theories developed by Danish scientists as their common theme.
The series comprises four coins. All in two versions,
CuAlNi 20 kroner (in both circulation and proof finish) and silver 500 kroner:
Niels Bohr's atomic model showing the orbit of the electrons around the nucleus (
1913):

Hans Christian Ørsted's experiment demonstrating
electromagnetism (
1820):

Ole Rømer's diagram describing the
speed of light (
1675):

Tycho Brahe's constellation Cassiopeia accentuating the star Stella Nova (
1572):

The common face of the four coins:

(news by
Taigawirbel,
Egon Conti and
Jo Hoogeveen)
(images and data from
Danmarks Nationalbank)
LINK:
Denmark National BankLINK:
Danish Royal Mint