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Science in the military
Military
Components
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Bullets
Bullets are a bit like fireworks and they are arranged in three sections: the primer, the propellant, and the bullet proper. The primer is like the fuse of a firework. The next part, the propellant, is a chemical explosive. The front part of the bullet is pointed so that it can cut through objects easly.
Helicopters
Helicopter Taking Off
The force needed to keep an aircraft in the air is called ‘Lift.’The shape of the wings is designed so
that the air flowing
over the top
surface has to
travel further, and
it therefore travels
faster.
Fighter Jets
Thrust is a big part of fighter jets. It can thrust almost 8 times its own weight. This gives it the power to take off. Fighter jets are also very light for its size. It also has a lot of wing area. These two componants make the fighter jet have a lot of lift.
Credits
Bullet Proof Vests
HowStuffWorks.com
Wikepedia
YouTube
A bullet-proof vest absorbs the force of the bullet. It is very similar to a soccer net. The only difference is that the vest doesn't have room for that. This is why the fibers in the vest are packed together tightly.