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National Security.
There are invar missiles.
missiles are used to shoot flying objects down from the sky
what element is used to build missiles
Missiles are used for a wide variety of military purposes. They are known to be used to destroy weapons collections and hideouts. New technology has made missiles amazingly accurate.
Theater Ballistic Missiles (TBM)
Raytheon did much ( defense electronics) work including Guided missiles. of course Nazi Germany had electronic control-guidance devices- including ground computers to direct the deadly accurate trajectories of the V-2 missile used in the latter part of World War II/
It's used to get a straight guidance line across a long surface. By snapping it the string deposits chalk - and you have your line. A great and very time saving invention !
A rocket has a propulsion system to make it fly into the air. A rocket can be a missile but a missile does not have to be a rocket. The ancient Romans used catapults (called ballista) to launch missiles made of rocks or stone at the enemy. Medieval soldiers threw spears as missiles at the enemy.Today missiles are launched by a rocket. A launched missile that follows the path determined at launch time is a ballistic missile as in an ICBM (Intercontinental ballistic missile). The rockets get it going at some speed and direction. If it has some sort of guidance mechanism built in such as a gyroscope or directional rockets, it would be called a guided missile.missiles have a guidance system
They are used for going into space and as missiles.
Triton
to propel the missile