Drones Are Put on a Leash 0 03.08.2015 05:18 WSJ.com The commercial promise of drones has been limited by their short battery lives and propensity for flying off. Now some companies believe they have a solution: tie the drones to the ground with tethers hundreds of feet long. Moscow.media Частные объявления сегодня Rss.plus Все новости за 24 часа Другие проекты от SMI24.net Музыкальные новости Агрегатор новостей 24СМИ
