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Reloading Manual Number Ten for Rifle and Pistol
Reloading Manual Number Ten for Rifle and Pistol Author:Speer An incredible Photo of a 30 caliber bullet traveling at twice the speed of sound, (approximately 2300 fps) made by Professor Kim Vandiver of Massachusetts Institute of Technology. Professor Vandiver made the photo using the color schlieren technique; an elaborate set-up using a pair of knife-edges and a pair of concave mirrors which enable film... more » to record changes in light refraction caused by changes in the denisity of the air. An exposure of 1/3 microsecond (1/3 of a millionth of a second) captured not only the bullet, but also the shock wave it generates as it pushes through the air.« less