Even physics textbooks tend to get friction slightly wrong

PLUS: Anti-anxiety apps, Second Life's security flaws, and the latest Google Assistant. View this email in your browser  08.17.19   PHOTO GALLERY The Smart Prison Initiative Pairing Inmates With Rescue Dogs BY MICHAEL HARDY Since 2016, Pawsitive Change has transformed the lives of hundreds of violent offenders and helped pets find permanent homes.   PUBLIC ART Apple Puts the AR in 'Art' (and in 'Transparent Sky-Being') BY PETER RUBIN The company's newly launched augmented-reality walks may only be available in five cities, but they're wildly ambitious deployments of public art.   IDEAS Anxiously Seeking the Perfect Anti-Anxiety App BY COLLIER MEYERSON Soon I may be swiping my screen, looking for a newer, better, flashier app, like Tinder for fixing mental anguish. But what if the magic stops working?   MYTHBUSTER Even Physics Textbooks Tend to Get Friction Slightly Wrong BY RHETT ALLAIN No matter what that Intro to Physics book says, you can't calculate the "work done by friction." Nope. Doesn't work. Don't even try it. GET WIRED Get 12 months of WIRED for just $49.99 $10.   Stories to help you understand the future.   Subscribe now   ICYMI Google Assistant Now Lets You Send Reminders to Other People BY LAUREN GOODE Hey Google, is this the future of passive-aggressive exchanges at home?   VIRTUAL WORLD Second Life Is Plagued by Security Flaws, Ex-Employee Says BY PARIS MARTINEAU A former infosec director at Linden Lab alleges the company mishandled user data and turned a blind eye to simulated sex acts involving children.   AI Algorithms Need FDA-Style Drug Trials BY WIRED OPINION Opinion: Algorithms cause permanent side effects on society. They need clinical tests.   MISINFORMATION Instagram Now Fact-Checks, but Who Will Do the Checking? BY SARA HARRISON Facebook said it will expand its fact-checking program to Instagram. But the system is already overwhelmed, and may not be able to handle more information.   Follow the WIRED Science Instagram Account Come for the robots, stay for nuggets of knowledge you can impress your friends with.     This e-mail was sent to you by WIRED. To ensure delivery to your inbox (not bulk or junk folders), please add our e-mail address, wired@newsletters.wired.com, to your address book.   View our Privacy Policy Unsubscribe