- published: 14 Jul 2015
- views: 458974
Ballistics (gr. βάλλειν ('ba'llein'), "throw") is the science of mechanics that deals with the flight, behavior, and effects of projectiles, especially bullets, gravity bombs, rockets, or the like; the science or art of designing and accelerating projectiles so as to achieve a desired performance.
A ballistic body is a body which is free to move, behave, and be modified in appearance, contour, or texture by ambient conditions, substances, or forces, as by the pressure of gases in a gun or propulsive nozzle, by rifling in a barrel, by gravity, by temperature, or by air particles.
A ballistic missile is a missile only guided during the relatively brief initial powered phase of flight, whose course is subsequently governed by the laws of classical mechanics. Modern inter-continental ballistic missiles (ICBMs), contain a maneuverable orbiting bus that positions and releases ballistic warheads in space using celestial navigation.
The earliest known ballistic projectiles were stones and spears, and the boomerang in Australia.
You never cried, you never froze
And yet how well your garden grows
You reap the fruits another sows:
I guess that works out well for you.
Suffering has served you well -
It's common but it somehow sells
So sing your little songs of hell and sell.
Hollow hopes and empty dreams
And blind pursuit of worthless schemes
That's all there is to life, it seems,