What’s the Winter Solstice, Anyway?

In 2021, the winter solstice for the Northern Hemisphere occurs on December 21. While not as dramatic as 2020's conjunction of Jupiter and...

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Self-Taught AI May Have a Lot in Common With the Human Brain

For a decade now, many of the most impressive artificial intelligence systems have been taught using a huge...
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The Zero SR/S EV Sport Bike Feels More Like a Cruiser

Photograph: Zero MotorcyclesOnce a battery reaches about 80 percent, it'll take longer to eke out those last few...

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