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gtyfhhdxg added a news bookmark.The fact that the Earth's magnetic poles are continuously in flux has been known for over 400 years. However, scientists have usually been able to accurately predict their pace ...Over 2 years ago
gtyfhhdxg added a news bookmark.The modern-day version of the hula hoop, introduced by the Wham-O toy company in 1958, has inspired fans to set numerous world records. These include the longest hula hooping ma...Over 2 years ago
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