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from BuzzFeed

Vietnam-Era Zippos Engraved With Soldier's Personalities

This collection of Vietnam War lighters was assembled and sourced by Bradford Edwards for his book “Vietnam Zippos” and the 282 lighters were recently available for auction. The engravings range from sentimental to shocking, and together they paint a unique, personalized picture of the U.S. troops during Vietnam.

Viking History (Denmark). 'The Vikings were not just plunderers but successful traders, extraordinary mariners and insatiable explorers. Getting a feel for the Viking era is easy, whether visiting the ship-burial ground of Ladby, the Viking forts of Zealand, the longship workshops at Roskilde or the museums that seek to re-create the era with live re-enactments.' http://www.lonelyplanet.com/denmark

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Do gravity effects on neurovestibular system cause changes in 3D visual perception? We'll see. http://www.nasa.gov/mission_pages/station/research/experiments/971.html