[The following is an exact transcript of this podcast.] [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of California, San Diego have come up with a spray-on polymer film that can spot residue from nitrogen-based explosives such as TNT. It works in as little as 30 seconds. [More] ...
Anytime
