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How Scientists Discovered Helium, the First Alien Element, 150 Years
https://www.smithsonianmag.com/history/how-scientists-discovered-helium-first-alien-element-1868-180970057/
WebAug 17, 2018 · On August 18, 1868, Janssen managed to do just that. He became the first person to observe helium, an element never before seen …
DA: 98 PA: 60 MOZ Rank: 85
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Helium - Wikipedia
https://en.wikipedia.org/wiki/Helium
WebThe formal discovery of the element was made in 1895 by chemists Sir William Ramsay, Per Teodor Cleve, and Nils Abraham Langlet, who found helium …
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The High-Flying, Death-Defying Discovery of Helium
https://sciencehistory.org/stories/magazine/the-high-flying-death-defying-discovery-of-helium/
WebMar 23, 2021 · Helium, they declared, was bogus. This, then, was the backdrop for the December 22, 1870, eclipse in Algeria. Janssen needed to shore up …
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Who Discovered Helium? - Universe Today
https://www.universetoday.com/53563/who-discovered-helium/
WebMar 14, 2016 · The first evidence of helium was obtained on August 18th, 1868 by French astronomer Jules Janssen. While in Guntur, India, …
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Helium Was Discovered 150 Years Ago. Here's Why It's So Important
https://www.livescience.com/63372-helium-150th-anniversary-discovery.html
WebAug 19, 2018 · A noble gas, helium was first discovered 150 years ago, on August 18, 1868, by the French astronomer, Jules Janssen, during a total solar eclipse. …
DA: 82 PA: 18 MOZ Rank: 95
