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May 18, 2017

18
May
2017

US drone registry axed

The FAA's mandatory drone registry is no more

Seen as an unnecessary burden by some and a smart safety measure by others, the US government's mandatory drone registry certainly had the desired effect. Hundreds of thousands of hobbyists have now registered their devices with the Federal Aviation Administration (FAA). As it turns out, however, the whole thing wasn't well, entirely legal, with an appeals court today striking down the rule and leaving the registry seemingly dead in the water.

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Category: Drones

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18
May
2017

Furnace waste may find use in longer-lasting concrete

Salt is hard on ice ... and on concrete

Salt may indeed keep winter roads free of ice, but it also actively degrades them. There may be a way out of the conundrum, however. Drexel University's Dr. Yaghoob Farnam has been experimenting with making "salt-proof" concrete that incorporates waste products generated by coal furnaces and the smelting process.

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Category: Environment

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