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22 countries you'll no longer find on maps
LoveEXPLORING via Yahoo News· 5 months agoNations that are no more N. Sitnikov/Hulton Archive/Getty Since history began, nations have risen and fallen in their hundreds. From city states and...
From pigeon-mounted cameras to dragonfly drones, here's how aerial surveillance has evolved to spy...
Business Insider via Yahoo News UK· 1 year agoA man is being instructed how to use an aerial camera on a plane during World War II.Culture...