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Swiss-born Belgian physicist notable for his exploration of both the upper stratosphere and the depths of the sea in ships of his own design. In 1930 he built a balloon to study cosmic rays. In 1932 he...

Auguste Piccard (1884-1962) Swiss-born Belgian physicist notable for his exploration of both the upper stratosphere and the depths of the sea in ships of his own design. (Wikipedia) Inventor of the bathyscaphe.

Last photo of Alfred Wegener & Rasmus Villumsen. Photographed just before their return back over the icecap.