Millions of security cameras capture constant video at businesses and retail locations throughout the U.S., but for the most part their footage is only useful if someone shoplifts and cops need to check it out. But there’s a wealth of data buried in that video, from customer density to crowd shopping preferences. A new startup can analyze surveillance video to help business owners see what their customers do, in the way websites can easily track online shoppers’ browsing habits.
Google just announced the NFC-based mobile payment scheme we all knew was coming: Google Wallet. Leveraging the wireless NFC chip in (some, with more to come) smartphones, Google Wallet allows you to tap your phone on a point-of-sale system to pay with your credit card account, as well as a host of coupons and loyalty cards and other retail-friendly stuff Google showed off today.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.