Detailed text transcripts for TV channel - CNN - 20110526:17:52:00
>> so it can detect -- we're st still discovering this, looking lieu the library of materials but detect common ones, tnt, rdx. but it can differentiate molecules that have the groups that seem to be the signature for some common types of explosives. so it's -- there's a large library of molecules that you can measure in this way. >> how does this differ, would you say, from current explosives detection devices? >> it differs in that this is a nano meter sized transdeucer and -- >> what is that exactly? >> well, it's -- the size of this sensor is about 30,000 times smaller than the thickness o...