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Cnx OpenStax

As seen in: Big Think, New Atlas, GIGAZINE
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Articles

Hollow concrete mimics human bones for 5x toughness Original

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By Abhimanyu Ghoshal Verified, Sameer A. Khan, Cnx OpenStax
| New Atlas Verified
A pair of Princeton engineers have developed a new kind of concrete that promises more than 5 times the damage resistance of the usual stuff, by poking holes in its structure. This could mean not only safer buildings, but it could also reduce our need to produce concrete to repair and rebuild structures – and that'd be great for the environment. Cement, which is used to make concrete, contributes to 3% of all greenhouse gas emissions worldwide, and every dent we can make in that figure helps.
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Human brain cells don’t continue to grow into adulthood, according to a new study

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By Cnx OpenStax, Philip Perry
| Big Think Verified
An adult dentate gyrus of the mouse hippocampus. Credit: Anna Engler, Wikipedia. We used to think neurogenesis—the growth of new brain cells, occurred throughout one’s lifetime. A shocking new study out of UC-San Francisco finds that instead, no more memory cells grow in the hippocampus after childhood. That's staggering, as this area of the brain associated with really important things such as learning, memory, and emotion.
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