A dashcam video purports to show the crash of a civilian cargo 747 in Afghanistan Monday. LiveLeak hide caption

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A miniature ninja throwing star or a surgical device? The microgripper, shown here coming out of a catheter tube, is activated by body heat. The sharp appendages fold up when the device warms up. Evin Gultepe, Gracias Lab, Johns Hopkins University. hide caption

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(Left to right) Sketches of Henry Kissinger, Hillary Clinton and President Barack Obama Courtesy of Michael McCutcheon hide caption

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A young boy plays on a commode during an event for World Toilet Day in New Delhi in November. An estimated 131 million Indian homes don't have a latrine or a clean toilet. Raveendran/AFP/Getty Images hide caption

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When chef Heston Blumenthal was a kid, he wondered why people loved to dunk their biscuits into tea. Courtesy of the University of Nottingham hide caption

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