This Day in History Class

Helium is discovered during a solar eclipse - August 18th, 1868

Aug 18, 2023
Learn about the discovery of an unknown element, helium, during a solar eclipse in 1868. Explore the controversy surrounding its existence on Earth and the eventual discovery by Luigi Palmieri in 1882. Discover the applications and rarity of this element.
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1
Introduction
00:00 • 2min
2
Discovery of Helium during a Solar Eclipse
02:21 • 5min
3
Discovery and Applications of Helium on Earth
07:35 • 4min