The Whistle Go Explore and other pet trackers let you know if your dog gets loose with app-based geofencing. But if you live in an area with spotty Wi-Fi, or near wild animals, you may have already considered an electric fence of some kind. SpotOn uses GPS signals to let you set a fence for…

"Guys are so clueless," Canadian teen Caroline Majcher says in a TikTok video. "They had no idea that girls eat their tampon after they're done with it to reabsorb all the blood they just lost." Her audience echoed her shock: "lmao they thought we just threw them away?? waste of blood 🙄" one comment reads.…

September is Emergency Preparedness Month. I don't find many National Days to be very useful (I’m still not sure what to do about “Meow Like a Pirate Day”) but for those of us who live in disaster-prone areas, like the hurricane-strewn Gulf Coast or the tornado plains of the Midwest, September is a good reminder…

The International Space Station is a football-field-sized science laboratory that orbits some 250 miles above Earth. Usually between three to nine people are on board at any time, and while it seems like they’re probably playing with floating water and watching their hair do funny things, they’re actually doing a lot of science.In any case,…

On September 7, two mathematicians posted a proof of a version of one of the most famous open problems in mathematics. The result opens a new front in the study of the “twin primes conjecture,” which has bedeviled mathematicians for more than a century and has implications for some of the deepest features of arithmetic.Original…

Greta Thunberg’s face is all over the internet—she scowls, she stares, she snarls, she poses with Arnold Schwartzenegger. To some, the 16-year-old Swedish climate activist, who this week gave an impassioned speech demanding action from world leaders at the United Nations, is a messiah with a side braid. To others, particularly those working at conservative-leaning…

Because my mother firmly believed that IQ tests torpedo motivation—“If it's low, you won't try; if it's high, you won't try”—I've refused to let my children take them. So a certain mystique has attached itself, for my son anyway, to the beguilingly false empiricism of an “intelligence quotient.”At some point, he revved up my Quora…

The Delta EcoFlow is a new battery generator available on Kickstarter with incredible claimed features. Most are true, some are not. Device like the Delta offer incredible battery storage capacity.…

A chat with Dropbox VP of Product Adam Nash and CTO Quentin Clark According to Dropbox CEO Drew Houston, 80% of the product’s users rely on it, at least partially,…

What’s the lesson of WeWork? Here’s a startup that has been a darling of Silicon Valley investors for years, whose offices and CEO have been stunningly painted across the covers…