Inhalable local anesthesia, fingerprint-scanning ATM machines, the BP oil spill and dead-weight sperm. What a week it has been... and what a future it will be. Check out some of our favorite stories this week, and win a free t-shirt.
Here are some of our favorite stories this week:
As always, leave a comment to win this drawing on a shirt. We'll announce our randomly chosen winner next week. Have a good weekend, everyone!
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.