In the age of Blu-Ray and Hulu, maybe DVDs are becoming less relevant. But researchers have just made a crazy invention with one: a device that simply and quickly detects HIV.
A team from the KTH Royal Institute of Technology in Stockholm turned a DVD drive into a laser scanning microscope that can accurately analyze blood and perform cellular imaging. That means it can test for HIV--and spit back results in minutes.
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.