Definition of Ballistic pendulum. Meaning of Ballistic pendulum. Synonyms of Ballistic pendulum

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Definition of Ballistic pendulum

Ballistic pendulum
Pendulum Pen"du*lum, n.; pl. Pendulums. [NL., fr. L. pendulus hanging, swinging. See Pendulous.] A body so suspended from a fixed point as to swing freely to and fro by the alternate action of gravity and momentum. It is used to regulate the movements of clockwork and other machinery. Note: The time of oscillation of a pendulum is independent of the arc of vibration, provided this arc be small. Ballistic pendulum. See under Ballistic. Compensation pendulum, a clock pendulum in which the effect of changes of temperature of the length of the rod is so counteracted, usually by the opposite expansion of differene metals, that the distance of the center of oscillation from the center of suspension remains invariable; as, the mercurial compensation pendulum, in which the expansion of the rod is compensated by the opposite expansion of mercury in a jar constituting the bob; the gridiron pendulum, in which compensation is effected by the opposite expansion of sets of rodsof different metals. Compound pendulum, an ordinary pendulum; -- so called, as being made up of different parts, and contrasted with simple pendulum. Conical or Revolving, pendulum, a weight connected by a rod with a fixed point; and revolving in a horizontal cyrcle about the vertical from that point. Pendulum bob, the weight at the lower end of a pendulum. Pendulum level, a plumb level. See under Level. Pendulum wheel, the balance of a watch. Simple or Theoretical, pendulum, an imaginary pendulum having no dimensions except length, and no weight except at the center of oscillation; in other words, a material point suspended by an ideal line.
Ballistic pendulum
Ballistic Bal*lis"tic, a. 1. Of or pertaining to the ballista, or to the art of hurling stones or missile weapons by means of an engine. 2. Pertaining to projection, or to a projectile. Ballistic pendulum, an instrument consisting of a mass of wood or other material suspended as a pendulum, for measuring the force and velocity of projectiles by means of the arc through which their impact impels it.

Meaning of Ballistic pendulum from wikipedia

- 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...
- the "standard projectile". In 1742, Benjamin Robins invented the ballistic pendulum. This was a simple mechanical device that could measure a projectile's...
- projectile fired by a gun. Benjamin Robins (1707–1751) invented the ballistic pendulum that measures the momentum of the projectile fired by a gun. Dividing...
- conserve kinetic energy, they do obey conservation of momentum. Simple ballistic pendulum problems obey the conservation of kinetic energy only when the block...
- bullet. 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...
- and shaped charge jet tests. Additional tests were done including the "pendulum friction test", which measured a five-second explosion temperature of 263 °C...
- particles. For the ranges of m****-values see: Orders of magnitude (m****) Ballistic pendulum Force gauge Spring scale Strain gauge Torsion balance Tribometer Anemometer...
- distant object can be achieved by throwing or launching a projectile. Ballistic pendulum Car accident Coefficient of restitution Collision (telecommunications)...
- any point of their trajectory. In 1847 Konstantinov created a ballistic rocket pendulum, which would allow to establish a law of changing rocket motion...
- recoil energy and momentum can be directly measured using a ballistic pendulum and ballistic chronograph. There are two conservation laws at work when a...
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