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Cosmic Turbulence Black Hole Formation
2013-08-16 09:31:01

John P. Millis, PhD for redOrbit.com - Your Universe Online The mechanism by which stars and black holes are formed in extreme cases of high mass density has puzzled astronomers since Johannes Kepler first laid out his laws of planetary motion some 400 years ago. In the most basic sense, a large cloud of gas condenses into a rotating disk. Mass is then directed towards the center of the cloud where, due to the increasing density, a stellar body is eventually formed. One challenge to...


Word of the Day
cock-a-hoop
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'
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