5 ms·
http://en.wikipedia.org/wiki/Long_Range_Acoustic_Device http://en.wikipedia.org/wiki/Long_Range_Acoustic_Device http://science.howstuffworks.com/lrad.htm/print
by leeoniya 12y ago
http://en.wikipedia.org/wiki/Long_Range_Acoustic_Device http://en.wikipedia.org/wiki/Long_Range_Acoustic_Device
http://science.howstuffworks.com/lrad.htm/printable http://science.howstuffworks.com/lrad.htm/printable