“Better-Fied” — The Discovery Files

The upside of Wi-Fi is that it’s everywhere — invisibly connecting laptops to printers, allowing smartphones to make calls or stream movies without cell service, and letting online gamers battle it out. The downside is that using Wi-Fi consumes a significant amount of energy, draining the batteries on all those connected devices. Now, a team of University of Washington computer scientists and electrical engineers has demonstrated that it’s possible to generate Wi-Fi transmissions using 10,000 times less power than conventional methods.