The Laser Beam Turns 50

Fifty years ago today the light amplification by stimulated emission of radiation, or the laser, was (officially) invented.

Quotes: Tarballs Washing Up on the Beach

“Tarballs DO NOT pose a health risk to the average person,”

— A SIGN, posted on a beach on Dauphin Island, Ala., reassuring swimmers that the small blobs of oil that have begun washing up on shore are not a threat. Tests …

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