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About 2 cm long and weighing just 0.3 grams, the insect-inspired device features two tiny wings and three spindly legs. Its ...
A simulation of the "aerial screw" designed by Leonardo da Vinci in 1480 suggests it would use less power than modern drone ...
Chinatown Bangkok Thailand - Explore the Largest and Most Vibrant Chinatown in the World (4K 50p) US Military's Largest ...