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NICE GUYS EVOLVE FIRST

We see evolution as a dog-eat-dog, violent free-for-all, but research suggests that evolution flourishes with cooperation — or, as one researcher puts it, the "snuggle for survival."
IT'S IN OUR BONES

By understanding, measuring, and taking advantage of the way the constituent parts of our skeletons align to transfer weight through our bodies and to the ground, a new generation of engineers are developing artificial exoskeletons that promise to provide new mobility to the disabled, and augment the able-bodied.
HOW MUCH DO YOUR SHOULDERS HURT?

How much does the Earth weigh? A firm answer didn’t arrive until the Englishman John Michell figured out a way. Little known today, he was actually one of the cleverest clergymen of the 18th century.
SO MANY ZEROS

Our brains are pretty good at distinguishing the size of the difference between small numbers (2,000, for instance) and big ones (let's say, 500 million). But we have real trouble figuring out the distance between two big numbers (like 50 billion and 1 trillion). Why?
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