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Latest Arlie Petters Stories

153768c6d5f5099d7c5cb25ba8297ba71
2009-04-15 08:45:00

A Duke University professor and his graduate student have discovered a universal principle that unites the curious interplay of light and shadow on the surface of your morning coffee with the way gravity magnifies and distorts light from distant galaxies. They think scientists will be able to use violations of this principle to map unseen clumps of dark matter in the universe. Light rays naturally reflect off a curve like the inside surface of a coffee cup in a curving, ivy leaf pattern that...