Week In Politics: Ukraine, Ariz. Veto And Obama's Task Force
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A computer designed by hobbyists to look like a brain on display at a Berlin fair in 2012. What happens when we go from crude models to complete working simulations of this all-important organ? Britta Pedersen/DPA/AFP/Getty Images hide caption

toggle caption Britta Pedersen/DPA/AFP/Getty Images

Electronic cigarettes are actually battery operated devices that use a heating element to atomize a flavored liquid, typically containing nicotine, so that it can be inhaled. Joe Raedle/Getty Images hide caption

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Ukrainian skier Bogdana Matsotska decided not to compete in Friday's slalom race, in a show of solidarity with protesters in Kiev. Fabrice Coffrini/AFP/Getty Images hide caption

toggle caption Fabrice Coffrini/AFP/Getty Images
Ukrainian Olympic Skier's Stand Is A Sacrifice For Her Country
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