Month: March 2019

When you wish upon a star (or an asteroid or a comet) you are wishing on plasma, ice, dust, rock, on an object that exists, for real, so far away and moving so fast that no living human will likely ever have direct contact with it. (Well, generally.) But you’re also wishing on a metaphor.…

You know those sexual enhancement dietary supplements for sale at gas stations and markets across the country? Beware, they might actually be viagra. Or steroids. Or an antidepressant. Many supposed dietary supplements for weight loss, erectile dysfunction, and muscle building may contain actual pharmaceuticals—but you likely have no way of knowing what's in them. Between…

When Geoffrey von Maltzahn was first pitching farmers to try out his startup’s special seeds, he sometimes told them, half-acknowledging his own hyperbole, that “if we’re right, you shouldn’t just see results in the field, you should be able to see them from outer space.” As the co-founder of a company called Indigo Ag, von…

Francesco Ricci stands at a table covered in a tangle of wires and tiny mirrors. “Here is where everything happens,” he says, pointing to a metal cylinder roughly the size of a cookie tin. A graduate student at the Institute of Photonic Sciences in Barcelona, Ricci is showing me a device he’s built to survey…

I'm oddly attracted to The Titan Games. I think we can all agree that this is the newest incarnation of the popular '90s show American Gladiators. It's not the theatrics that I enjoy, it's the crazy competitions. As you can imagine, there's a bunch of cool physics to talk about for some of these events.…

This story originally appeared in the Guardian and is part of the Climate Desk collaboration. New York is suing the oil giant ExxonMobil in a lawsuit that claims the company engaged in a “longstanding fraudulent scheme” to downplay the risks posed to its business by climate change regulations. The legal action, launched by New York…

Hal the robot boy is convulsing. His head shakes back and forth so rapidly, it looks like he’s vibrating. His eyelids droop over his blue eyes and his mouth is ajar. He makes no sound, other than the faint whirs of his motors. Hal was built to suffer. He is a medical training robot, the…

It’s an abnormally hot day in September and I’m standing in a cattail marsh in eastern Wisconsin, trying to change the way my students view the world. They’re all distracted—by the heat, homesickness, or the fact that they’ve lost a phone signal. The guys on the university hockey team are snickering about something. I’ve brought…

This story originally appeared on Mother Jones and is part of the Climate Desk collaboration. Google, Facebook, and Microsoft have publicly acknowledged the dangers of global warming, but last week they all sponsored a conference that promoted climate change denial to young libertarians. All three tech companies were sponsors of LibertyCon, the annual convention of…

Cybersecurity experts have sounded the alarm for years: Hackers are ogling the US power grid. The threat isn’t merely hypothetical—a group affiliated with the Russian government gained remote access to energy companies’ computers, the Department of Homeland Security published last March. In some cases, the hackers could even directly send commands to mess with hardware,…