Sound waves traditionally travel forward before bouncing back, and with sound this means you can speak, hear yourself speak, and hear any responses."
Monday, February 3, 2014
The AUDIO invisibility cloak: One-way sound device could let spies listen in on people without being heard
The AUDIO invisibility cloak: One-way sound device could let spies listen in on people without being heard | Mail Online: "Spies around the world could soon be able to listen in on secret conversations without any fear of being found out thanks to the first ever one-way sound machine.
Sound waves traditionally travel forward before bouncing back, and with sound this means you can speak, hear yourself speak, and hear any responses."
Sound waves traditionally travel forward before bouncing back, and with sound this means you can speak, hear yourself speak, and hear any responses."
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