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Mona Evans
Mona Evans • 2 years ago

Johann Gottfried Galle (1812-1910). Based on the calculations of Urbain Le Verrier, Galle and his assistant Heinrich Louis d'Arrest at the Berlin Observatory found the planet Neptune. The orbit of Uranus wasn't quite fitting the expected one and Le Verrier thought it was because the gravity of an unknown planet was affecting it. (Portrait: Olga Radomsky) ©Mona Evans, "Neptune Facts for Kids" www.bellaonline.c...

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Johannes Kepler (1571-1630). The German mathematician and astronomer who first understood how the planets move. Using the great Tycho's data, Kepler found that they moved in ellipses around the Sun, with more distant planets taking longer to complete one orbit. Copernicus proposed a sun-centered system, but Kepler made it credible. (Picture credit: Johnnes Kepler Gesammelte Werke , C. H. Beck, 1937) ©Mona Evans, "Kepler - His Life" www.bellaonline.c...

Cake handed out on Hitler's Birthday. April 20, 1934. Berlin.

Boys in Postwar Berlin © Fritz Eschen

Berlin Airlift by Fritz Eschen

Children play with the shell of a drop bomb. Berlin, WWII. (Bundesarchiv). S)

East German border guard tossing a ball back over the Berlin Wall after a West German child mistakenly threw it over, Berlin, Germany, by Paul Schutzer, 1962

The Battle of Berlin rages on but this German soldier needs to take a break. Behind him the Reichstag building is in flames but he would care less. April 1945.

East German construction workers, supervised by border guards, building the Berlin Wall, 1961.