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.
Plenty of once-amazing technologies like the Sony Walkman and Betamax now belong in a museum, and every year the pace of obsolescence gets faster--something not everyone is happy about. Analysts predict that video, music and cellphones are the next categories likely to see familiar equipment die off in the years ahead.