The Seagate GoFlex Satellite is a simple idea: take a big hard drive with you, wherever you want to go, that doesn't need any advanced setup, that doesn't need to be connected to a Wi-Fi network, and can beam your music, videos, photos, and documents to whatever device you happen to have with you--iPad, smartphone, laptop, whatever. And it does exactly that. Congratulations, iPad/smartphone/etc owner: You now have 500GB of extra storage, no matter which device you're using.
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.