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A green ballistic pendulum Animation of a ballistic pendulum. A ballistic pendulum is a device for measuring a bullet's momentum, from which it is possible to calculate the velocity and kinetic energy. Ballistic pendulums have been largely rendered obsolete by modern chronographs, which allow direct measurement of the projectile velocity.
A ballistic chronograph or gun chronograph is a measuring instrument used to measure the velocity of a projectile in flight, typically fired from a gun or other firearm. The instrument is often useful for tasks such as gauging the utility of a firearm or safety of non-lethal projectiles fired from items such as a paintball gun or BB gun .
Robins used the ballistic pendulum to measure projectile velocity in two ways. The first was to attach the gun to the pendulum, and measure the recoil. Since the momentum of the gun is equal to the momentum of the ejecta, and since the projectile was (in those experiments) the large majority of the mass of the ejecta, the velocity of the bullet ...
The death of a Pasco man whose body was found Sunday morning is being investigated as a possible homicide. The body was found in a car about 6:45 a.m. on Taylor Flats Road near Selph Landing Road ...
External ballistics is the part of the science of ballistics that deals with the behaviour of a non-powered projectile in flight. External ballistics is frequently associated with firearms , and deals with the unpowered free-flight phase of the bullet after it exits the gun barrel and before it hits the target, so it lies between transitional ...
Pasco may soon be home to a class of 30 new police recruits learning how to enforce the law — but closer to home. Pasco is one of four spots across Washington state proposed to house a regional ...
PHOTO: Attorney for the District of Columbia, Matthew Graves, holds a press conference about violent crime in the District in Washington DC on December 20, 2024. (Robb Hill/The Washington Post via ...
Benjamin Robins was born in Bath. [1] His parents were Quakers in poor circumstances, and as a result, he received very little formal education. [1] Having come to London on the advice of Dr. Henry Pemberton (1694–1771), who had recognised Robins's talents, [1] for a time he maintained himself by teaching mathematics, but soon devoted himself to engineering and the study of fortification.