Transcribed
Helium is discovered during a solar eclipse - August 18th, 1868
Aug 18, 2023 ·
9m 9s
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Helium is discovered during a solar eclipse - August 18th, 1868
Description
On this day in 1868, French astronomer Pierre Janssen discovered an unknown element while observing a solar eclipse.See omnystudio.com/listener for privacy information.
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| Author | How Stuff Works |
| Organization | iHeart Podcasts |
| Website | - |
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