The monetary and energy expense of HIV testing machines prevent their deployment to remote or impoverished areas; the very places that need them the most. To rectify that inequity, Palo Alto Research Center (PARC) has created a battery-operated HIV testing device the size of an iPod. The machine can return a test result in 10 minutes, and costs significantly less than the large machines used in most hospitals.
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.