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Innovation
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Kublai Khan wasn’t the first ruler in history to issue paper money, but his Yuan dynasty did take unprecedented action to ensure this revolutionary form of currency retained its value.
Million Stories
Oxygen isn't strictly necessary for combustion, but it is ideal. Any advanced (alien) civilization probably uses oxygen to burn things.
When constructed well, post-training survey questions can provide a wealth of information that helps guide future design decisions.
Argentina's black market for cash is embracing crypto — but it's not what crypto proponents expected.
New stamp-sized ultrasound adhesives produce clear images of heart, lungs, and other internal organs.
A two-dimensional material made entirely of carbon called graphene won the Nobel Prize in 2010. Graphyne might be even better.
What we call "basic research" is actually the most cutting-edge. It underpins knowledge, and without it, technology does not come into being.
"You develop an instant global consciousness, a people orientation, an intense dissatisfaction with the state of the world, and a compulsion to do something about it."
More than 150 companies are developing flying cars. Here's why they're aren't yet off the ground and darting across city skies.
A team of scientists hopes deep-earth lithium could sustain America's vast demand for batteries. But extracting it won't be easy.
The fictitious 31st-century world portrayed by the series is actually quite a bit like our own in the 21st century.
“I thought, why not direct these high-power beams, instead of into fusion plasma, down into rock and vaporize the hole?”
For the very first time, an AR contact lens was worn on the eye of a human subject. And it has about 30 times the pixel density of an iPhone.