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Watch a laser-powered RoboFly flap its tiny wings

Making something fly involves a lot of trade-offs. Bigger stuff can hold more fuel or batteries, but too big and the lift required is too much. Small stuff takes less lift to fly but might not hold a battery with enough energy to do so. Insect-sized drones have had that ...

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Uber’s aerial taxi play

Uber’s flying taxis are taking off, as the transportation upstart looks for new ways to shorten trips made long because of distance or traffic congestion. Flying cars were once nearly the exclusive domain of tech aphorisms (“You promised us flying cars, but instead we have x.”), but now they are ...

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‘Facebook Avatars’ is its new clone of Snapchat’s Bitmoji

Hidden inside the code of Facebook’s Android app is an unreleased feature called Facebook Avatars that lets people build personalized, illustrated versions of themselves for use as stickers in Messenger and comments. It will let users customize their avatar to depict their skin color, hair style and facial features. Facebook ...

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