
When you give a child their first smartphone, don’t send them into the digital world unprepared. Here’s a look at the three-page agreement that technology executive Jennifer Zhu Scott asked her kids to sign when they got their phones, complete with some advice that adults should consider following, too.

An internet-connected network of cameras and sensors in five states taps into the power of crowdsourcing and allows wildfires to be spotted quickly and more precisely. Graham Kent, the seismologist who helped create the system, explains how it works. A year ago, a grim new record was set. In November 2018,