Bernhard Schmidt
Videos
Bernhard Woldemar Schmidt was an Estonian optician. In 1930 he invented the Schmidt telescope, which corrected for the optical errors of spherical aberration, coma, and astigmatism, making possible fo
Bernhard Schmidt
Schmidt Museum at Hamburg Observatory, Bergedorf
The 2m Schmidt Camera (the Alfred-Jensch Telescope at Karl Schwarzschild Observatory in Tautenburg, Germany).
Naissaar
Videos
Naissaar is an island in Estonia. It is located in the Gulf of Finland, northwest of the capital city Tallinn, and is administratively part of Viimsi Parish. The island has an area of 18.6 square kilo
Naissaar from the air
Kunilamägi, the highest point on the island, at 27 metres (89 ft) above sea level.
Russian battleship Petropavlovsk
Sailors of the Petropavlovsk in Helsinki, 1917