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Most quasars live on snacks, not large meals

(Phys.org) -- Black holes in the early universe needed a few snacks rather than one giant meal to fuel their quasars and help them grow, according to observations from NASA's Spitzer and Hubble space telescopes.

dateJun 20, 2012 in Astronomy
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Simulated skiers reveal mountain traffic jams

Millions of skiers and snowboarders escape to the mountains every winter, but some everyday stresses -- like traffic jams -- are unavoidable even on the slopes. In plenty of time to prepare for next season, a team of Swiss ...

dateMay 09, 2012 in General Physics
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Judges, journalists clash over courtroom tweets

(AP) -- Getting news from a big trial once took days, moving at the speed of a carrier pigeon or an express pony. The telegraph and telephone cut that time dramatically, as did live television broadcasts.

dateApr 16, 2012 in Internet
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