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K08-45autot4443.jpg
A .45 caliber bullet exiting the gun. This image is part of a series taken 1/1,000,000th of a second apart. The gunpowder still has velocity and will travel up to 20 feet from the point of discharge. This gunpowder can be detected on clothing and skin to determine the location of individuals at the scene of a crime. The schlieren optical system images different air pressures with different colors of light. This image freezes the motion by using a high speed flash with a duration of 1/2,000,000th of a second.
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