1st wheel was invented 6,000 years ago in the Carpathian Mountains, modeling study suggests - Livescience.com

Even though the invention of the wheel around 6,000 years ago revolutionized everything from transportation to pottery making, its exact origins are still a mystery to archaeologists. But a new study… [+5017 chars]

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NASA Confirms Asteroid Larger Than the Statue of Liberty Is Approaching Earth Tomorrow - The Daily Galaxy --Great Discoveries Channel
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AI and astronomy: Neural networks simulate solar observations - Phys.org
500-year-old cannon that could fire ‘like a swarm of hornets’ found in Arizona. See it - Sacramento Bee