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Scientists tested a 500-year-old flying machine design by Leonardo da Vinci using computers and found it could make today's ...
Rather than lug around too many heavy textbooks in your too-small backpack, get an ereader like the Kobo Libra Colour to make ...
Extending close to the length of a football field, U.K.-based Hybrid Air Vehicles ’ (HAV) Airlander 10—dubbed “The Flying Bum ...