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Latest Caesium Stories

552fdbd4e8889b85f04f962898d0e4771
2005-05-18 18:05:31

PARIS (AFP) -- Japanese scientists say they have made a technical breakthrough in the quest to perfect the world's most accurate clock, a timepiece that would lose only one-quintillionth (a million-million-millionth) of a second per day. University of Tokyo researcher Hidetoshi Katori and colleagues devised a "pendulum" of strontium atoms that ride on the crest of highly stable laser-generated lightwaves, according to their study, which appears on Thursday in Nature, the weekly British...


Latest Caesium Reference Libraries

0_3c981185d3336687e1466aa007bb3157
2009-07-10 12:54:52

Cesium (or Caesium) is a chemical element with the symbol Cs and atomic number 55. Caesium is a soft alkali metal that is silvery-gold. It melts and liquefies at 83 degrees Fahrenheit and is one of only five metals that are liquid close to room temperature. Caesium is a metal that is most widely known for its use in atomic clocks. Cesium comes from the Latin word caesius meaning "˜bluish-gray'. It was discovered in 1860 by Robert Bunsen and Gustav Kirchhoff in Durkheim, Germany in mineral...

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Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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