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6 science milestones turning 40 this year Popular Science Awe-inspiring science reporting, technology news, and DIY projects. Skunks to space robots, primates to climates. That's Popular Science, 150 years strong.
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News
How gross is biting your fingernails?
1+ week, 18+ hour ago (291+ words) Published Sep 6, 2026 2:00 PM EDT Between 20 and 30 percent of Americans bite their nails, according to The Cleveland Clinic. Why? Among other reasons, nail biting “often has a self-soothing quality—in fact, it provides a sense of calm—so people may use…...
Your smartwatch may be overestimating calories burned by 25 percent
1+ week, 4+ day ago (310+ words) Published Sep 2, 2026 11:16 AM EDT One of a smartwatch’s main selling points can be its ability to track the calories burned while exercising. But similar to the health tech industry’s “10,000 steps” selling point, new research strongly suggests a wearable’s workout assessment…...
How gross is wearing your shoes inside?
2+ week, 1+ day ago (644+ words) Published Aug 29, 2026 1:00 PM EDT Do you take your shoes off when you enter your home? If not, I think you’re disgusting (sorry, not sorry, I’m Canadian)! But you’re not here to learn where people do and don’t take off shoes....
How gross is it to leave a toothbrush exposed in the bathroom?
3+ week, 1+ day ago (386+ words) Published Aug 22, 2026 1:19 PM EDT You put your toothbrush in your mouth. You store it in your bathroom, near your toilet. If that’s something you’d rather not think about, I understand. In 2015, a grad student at Quinnipiac University found fecal matter…...