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Helium (from Greek: ἥλιος, romanized: helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table.
An observation of the new yellow line had been made earlier by Janssen at the 18 August 1868 solar eclipse [13], and because their papers reached the French academy on the same day, he and Lockyer usually are awarded joint credit for helium's discovery. Terrestrial helium was found about 27 years later by the Scottish chemist William Ramsay. In ...
Jules Janssen; photograph by Nadar (date unknown) Photo taken by Janssen, from the Meudon observatory, of Renard and Krebs' La France dirigible (1885). Pierre Jules César Janssen (22 February 1824 – 23 December 1907), usually known as Jules Janssen, was a French astronomer who, along with English scientist Joseph Norman Lockyer, is credited with discovering the gaseous nature of the solar ...
Sir William Ramsay KCB FRS FRSE (/ ˈ r æ m z i /; 2 October 1852 – 23 July 1916) was a Scottish chemist who discovered the noble gases and received the Nobel Prize in Chemistry in 1904 "in recognition of his services in the discovery of the inert gaseous elements in air" along with his collaborator, John William Strutt, 3rd Baron Rayleigh, who received the Nobel Prize in Physics that same ...
Each found evidence of an unknown element, indicating a new discovery: Helium, named for the Greek god of the Sun. In another eclipse in 1869, astronomers found convincing evidence of another new ...
Heike Kamerlingh Onnes (Dutch: [ˈɦɛikə ˈkaːmərlɪŋ ˈɔnəs]; 21 September 1853 – 21 February 1926) was a Dutch physicist.After studying in Groningen and Heidelberg, he became professor of experimental physics at the University of Leiden where he taught from 1882 to 1923.
Jamie Theakston reveals Davina McCall was the reason he discovered he had cancer. Maira Butt. February 14, 2025 at 5:31 AM. ... He emotionally revealed he was cancer-free last month.
Menghan Zhuang, who also went by Emily King, was discovered unresponsive by her roommate at their Santa Clarita apartment the evening of Feb. 4, the Los Angeles County Sheriff's Department said.