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Microscopes
Zasharaias Jansen was the man that invented the microscope in 1590. Zach and his dad were experimenting lenses. The put several lenses in a tube and made a very important discovery.
How it Works
Microscopes are effectively just tubes packed with lenses, Curved pieces of glass that bend light rays passing through There's a lens above the object (called the objective lens) and another lens near your eye (called the eyepiece or ocular lens). Each of these may, in fact, be made up of a seriesthem. -
Gernade
The first granade was invented in 1914.
How they Work
The first gernade was made out of old cans filled with nails bits of medal packed with gun powder. Once a soldier throws the grenade, the safety lever releases, the striker throws the safety lever away from the grenade body as it rotates to detonate the primer. The primer explodes and ignites the fuse (sometimes called the delay element). The fuse burns down to the detonator, which explodes the main charge. -
The Atom Bomb
By the summer of 1945 Oppenheimer was ready to test the first bomb. On July near Alamogordo, New Mexico the scientests of manhattan readied themselves to watch the detonation of the first bomb. How it works
There are two types of nuclear bombs, fission bombs and fusion bombs. Fission means to break apart and fusion to merge. The fission bomb works on the principle that it takes energy to put together a nucleus with many protons and neutrons. Sort of like rolling a heavy cart up a hill. -
Hydrogen Bomb
Built by Edward Teller and his team in 1952 How it Works
The hydrogen bomb or H-bomb, weapon deriving a large portion of its energy from the nuclear fusion of hydrogen isotopes. In an atomic bomb, uranium or plutonium is split into lighter elements that together weigh less than the original atoms, the remainder of the mass appearing as energy. -
Nuclear Submarine
First nuclear submarine to be launched was the USS Nautilus on Jan. 24, 1954
A nuclear submarine is a submarine powered by a nuclear reactor. The performance advantages of nuclear submarines over "conventional" (typically diesel-electric) submarines are considerable. -
Nuclear Power Plants
On June 27, 1954, at Obninsk, Russia became the first nuclear power plant.
How they Work
At nuclear power plants, the heat to make the steam is created when uranium atoms split – called fission. This is what creates power.
