In the 1890s, the Verein zur Förderung der Luftschifffahrt (an association promoting airflight founded in 1881) conducted scientific balloon ascents to study the upper atmosphere on the initiative of Richard Assmann.
From 1905 to 1914 he was director of the Prussian Royal Aeronautical Observatory at Lindenberg, and afterwards was an honorary professor at the University of Giessen.
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