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How pot plants and crisp packets could be spying on youResearchers at Massachusetts Institute of Technology have discovered a way to turn inanimate objects like crisp packets and pot plants into 'visual microphones' which can pick up conversations even in a sealed room A team at the Massachusetts Institute of Technology (MIT) found that they could record noise by videoing the minuscule vibrations that sound waves create in inanimate objects.By focussing on a pot plant or crisp packet in a sealed room, they were able to record the tiniest movements and convert it back into the sound that created it.
QuoteHow pot plants and crisp packets could be spying on youResearchers at Massachusetts Institute of Technology have discovered a way to turn inanimate objects like crisp packets and pot plants into 'visual microphones' which can pick up conversations even in a sealed room A team at the Massachusetts Institute of Technology (MIT) found that they could record noise by videoing the minuscule vibrations that sound waves create in inanimate objects.By focussing on a pot plant or crisp packet in a sealed room, they were able to record the tiniest movements and convert it back into the sound that created it. http://www.telegraph.co.uk/science/science-news/11016706/How-pot-plants-and-crisp-packets-could-be-spying-on-you.html