Borrowing a trick from the Air Force, whose planes can complete long-range missions thanks to in-flight refueling from tanker aircraft, researchers at UC Berkeley showed off a novel way to keep small drones in the air almost indefinitely: flying replacement batteries that can be swapped without landing.

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Monday's Best Deals: Samsung 8K TVs, Kohler Fixtures, Rubik's Cube, and More
A discounted Eufy Smart Doorbell, Philosophy deals, and a sale on Samsung 8K TVs lead off Monday’s best deals from around the web.
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Deciding to Make Frozen II Was Much More Complicated Than You'd Expect
The idea of making a sequel to one of the biggest animated films of all time somehow seems more than just “obvious.” “Essential” is likely a better word. And yet, the filmmakers behind Frozen and the upcoming Frozen II say making a sequel wasn’t their first instinct and the road to get there was more than a little…
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Why the Mississippi River Needs a Bill of Rights
In his 45 years as a shrimp fisherman in south Louisiana, Venice native Acy Cooper has never seen the industry suffer like it has this year. Not after Hurricanes Katrina and Rita in 2005. Not in the years after the BP Deepwater Horizon oil spill in 2010.
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Police Drone Finds Fugitive Living in Cave After 17 Years on the Run
Chinese police used a drone to track down a convicted human trafficker 17 years after he escaped from jail.

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