Hidden at Fort Knox for years, ‘space-flown’ Sacagawea gold coins sell for millions
22 Sep
Science & Technology

Hidden at Fort Knox for years, ‘space-flown’ Sacagawea gold coins sell for millions

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Riding the Rockies on the Ducati XDiavel V4
22 Sep
Science & Technology

Riding the Rockies on the Ducati XDiavel V4

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XDiavel V4 makes easy work of the Rocky Mountain switchbacks thanks to the engine’s muscular power delivery Image: Ducati Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday.Ducati’s new low-slung 168-horsepower muscle bike is meant to appeal to sport bike riders who have tired of the racer-crouch riding position but still want a sophisticated and powerful ride. That’s according to old friend Jason Chinnock, who is Ducati North America’s CEO. Chinnock’s not just the CEO; he’s also put in his miles on the race-replica bikes that build Ducati’s reputation for performance. The XDiavel V4’s 1,158cc four-cylinder engine is the bike’s centerpiece, both visually and technically. It even earns a spot in the model’s complete name: XDiavel V4. The first-generation Diavel had similar drag strip-ready styling with a low seat and...
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40-Year Medical Mystery Solved: Why Smoking Helps Ulcerative Colitis
16 Sep
Science & Technology

40-Year Medical Mystery Solved: Why Smoking Helps Ulcerative Colitis

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New research shows that smoking alters gut microbes in a way that reduces inflammation in ulcerative colitis. The discovery hints at future treatments that harness bacteria or metabolites instead of cigarettes. Credit: ShutterstockSmoking helps oral bacteria settle in the gut, protecting against colitis but not Crohn’s disease. This mechanism could inspire safer treatments. A research team led by Hiroshi Ohno at the RIKEN Center for Integrative Medical Sciences (IMS) in Japan has uncovered why smoking tobacco appears to ease symptoms in people with ulcerative colitis, a chronic condition marked by inflammation in the large intestine. Their study, published in the journal Gutrevealed that smoking produces certain metabolites that allow oral bacteria to establish themselves in the colon, where they activate an immune response. The findings suggest that similar benefits might be achieved through alternatives such as prebiotics...
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This Workout Will Teach You to Train Like an Athlete
16 Sep
Science & Technology

This Workout Will Teach You to Train Like an Athlete

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SURE, MOST GUYS want to look like some Greco-Roman statue, with slabs of lean muscle layered onto their biceps and shoulders and chest and thighs. The thing we often forget: You don’t want to move like a statue too. You want to move like an athlete, capable of channeling your strength in multiple ways, quickly shifting left and right when you need to, able to break into a jog or a run whenever you’re late for the train. You want to build muscle mass and power.The first part is straightforward enough; the second part is trickier. Power involves your ability to move quickly and explosively, as you do when you jump, and it keeps your body bouncy. And it’s this bounce that makes your muscle useful. To build that power, you’ll want to master contrast...
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