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9 household items dirtier than a toilet seat
They say necessity is the mother of invention, but many of these inventors may not have received that memo. Check out some of the strangest U.S. patents around.
As the lava continues to flow through vegetation on the Big Island, University of Hawaii scientists and students have developed a model to track the smoke and where it goes.
President Vladimir Putin blamed "external factors" such as oil prices and sanctions for Russia's financial crisis Thursday, but admitted he should have done more to diversify the economy.
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