CNN Anderson Cooper 360 April 23, 2013 05:42:00
A hardware start. shot out like bullets, they pierced hard wood. some even melted from the heat. look at the back of it. how fast were these things moving when they went out? >> they can travel a thousand, 2,000 feet a second. >> thats faster than sound. >> thats right. theyll move faster than the speed of sound. these things will get in front of the shockwave and hit you before the pressure wave does. >> youre hit before you even hear it. >> thats right. >> here is what the blast looks like usi...
Source: archive.org