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Prevention is the secret to a happy dental life and long term health.
Posted 9 years ago by thudd in category: interesting   Comments (3)


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William Lutz explains.
Posted 8 years ago by DAmig in category: interesting   Comments (0)


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Mythbusters
Posted 8 years ago by PeterDkl in category: interesting   Comments (0)



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Peering into the thousands of frozen layers inside Greenland’s ice sheet is like looking back in time. Each layer provides a record of not only snowfall and melting events, but what the Earth’s climate was like at the dawn of civilization, or during the last ice age, or during an ancient period of warmth similar to the one we are experiencing today. Using radar data from NASA’s Operation IceBridge, scientists have built the first-ever comprehensive map of the layers deep inside the ice sheet.
Posted 8 years ago by MrDunkus in category: interesting   Comments (0)


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Smarter Every Day
Posted 7 years ago by VeriGoos in category: interesting   Comments (1)