Technology How DOES your cellphone work? A new exhibition dials into the science Turns out wireless networks aren't wireless at all. And light pulses in fiber optic cables carry your voice around the world. A new exhibition explains the science you hold in your hand every day. Neda Ulaby
Health The truth about teens, social media and the mental health crisis A striking decline in teen mental health has coincided with the rise of smartphones and social media. Is social media causing the mental health challenges? Finally, research can answer that question. Michaeleen Doucleff
National A Tech Powerhouse, U.S. Lags In Using Smartphones For Contact Tracing Google and Apple teamed up on using smartphones to track coronavirus infections. But the systems are only available in a few states, where they're being used by a tiny percentage of the population. Jason Beaubien
Health Alexa can tell if you’re going into cardiac arrest – and then call 911 Researchers at the University of Washington have taught smart devices how to correctly identify the staggered breathing of someone going into cardiac arrest while sleeping. Kim Malcolm Casey Martin
Health A Smartphone App And A Paper Funnel Could Help Parents Diagnose Kids' Ear Infections While there are thousands of health-related apps around, one being developed at the University of Washington stands out because it uses a phone's microphone and speaker to make a a medical call. Richard Harris
Technology Samsung Delays Launch Of Folding Phone After Reviewers Find Broken Screens The nearly $2,000 Galaxy Fold was due to go on sale this Friday. But reviewers discovered bulges, flickering and other problems with its 7.3-inch screen. Samsung says it plans to run further tests. Avie Schneider
Opinion: Please Take Away My Kids' Cellphones At School It has been a depressing week of back-to-school stories. But NPR's Jennifer Ludden has found one to be happy about: cellphones will soon be locked up at her kids' school. Jennifer Ludden
App founders ask, if you aren't free to have private thoughts, how free are you? Bill Radke speaks with Jen McEwen and Jesse Adams about their transition from working on an adult entertainment app store to a new secure browser app... Bill Radke Matt Martin
Your Smartphone Signals Could Make That Bus Arrive On Time On a rainy Seattle morning, Cameka Knock stands at a bus stop near Edmonds and Rainier in Columbia City. She takes the bus to school, and she says that ... Jamala Henderson
