When Did Humans First Learn to Count?

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Where did our written numbers come from? (Credit: Nikita Rogul/Shutterstock) The history of math is murky, predating any written records. When did humans first grasp the basic concept of a number? What about size and magnitude, or form and shape? In my math history courses and my research travels in Guatemala, Egypt and Japan, I’ve been especially interested in the commonality and differences of mathematics from various cultures. Although no one knows math’s exact origins, modern m ...read more

The Forgotten Female Cosmonaut Class

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Valentina Tereshkova. NASA. On June 16, 1963, Valeriy Bykovsky had been orbiting in Vostok 5 for a little under a day when he gained a companion: Valentina Tereshkova in Vostok 6. After more than a year of intensive training, she became, on that Sunday afternoon, the first woman in space.  Tereshkova’s story starts towards the end of 1961 with Sergei Korolev. Korolev was the Soviet space program’s Chief Designer and the mastermind behind the nation’s earliest space triump ...read more

Carbon dioxide at highest level ever directly measured

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Rather than declining, CO2 levels in the atmosphere are rising thanks to continuing growth in emissions of the climate-altering gas This visualization shows the behavior of carbon dioxide in the atmosphere from Sept. 1, 2014, to Aug. 31, 2015, based on observations and modeling. In May, atmospheric CO2 reached the highest levels ever directly measured. (Source: NASA Goddard Space Flight Center/K. Mersmann, M. Radcliff, producers) The Paris Agreement was intended to turn the worl ...read more

Real 'Westworld' Haptic Vests Better Than Fiction

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Private military contractors wearing haptic vests in the show “Westworld.” Credit: HBO Most of the HBO show “Westworld” focuses on artificial intelligence and android robots that seem indistinguishable from humans. But the show has also occasionally snuck in some real-world technology that seems futuristic enough to blend in with the science fiction setting. One example of such real technology in “Westworld” comes in the form of haptic vests t ...read more

To Scare Off Predators, These Lizards Stick Their Tongues Out

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A bluetongue skink in a classic anti-predator display. (Credit: Shane Black) When most animals feel threatened, their responses can be divided into two general categories: fight or flight. Bluetongue skinks, though, buck the trend in a most unusual way — when attacked, they stick their tongues out. Their tongues are bright blue, and the sudden flash of color can be just enough to give potential predators pause and allow the lizards to escape. Now researchers find these tongues don&r ...read more

'Westworld' Science Advisor Talks Brains and AI

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A scene from the first episode of season 2 of the HBO show “Westworld.” Credit: HBO One of many hats that neuroscientist David Eagleman wears in real life is science advisor for HBO’s science fiction show “Westworld.” The show takes place in a futuristic theme park staffed by robotic hosts who seemingly exist only to fulfill the dark and violent fantasies of wealthy human guests who want to indulge adventure and vice in a Western-style playground for adults. ...read more

Bees Understand Zero, Zip, Nada

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(Credit: Viesturs Ozolins/Shutterstock) We like to think, as humans, that our big brains separate us from the animals. Sure, we’re basically mobile meat just like them, but we can think. But the more we’ve learned about the other species out there, the more brainpower we’ve detected too. Not only can some animals be trained and do tricks, but a few can communicate and even do simple math. An elite club can even understand the concept of zero, embodied nothingness: various pri ...read more

'Psychopath AI' Offers A Cautionary Tale for Technologists

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(Credit: thunderbrush) Researchers at MIT have created a psychopath. They call him Norman. He’s a computer. Actually, that’s not really right. Though the team calls Norman a psychopath (and the chilling lead graphic on their homepage certainly backs that up), what they’ve really created is a monster. Tell Us What You See Norman has just one task, and that’s looking at pictures and telling us what he thinks about them. For their case study, the researchers use Rorschach ...read more

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