7 The discovery of the many reasons Death

1. Atomic Bomb
Atomic bomb is a type of nuclear reaction and has a tremendous destructive power. A bomb could destroy a city. Nuclear weapons are only two times in battle.

During the Second World War by the United States against the Japanese cities of Hiroshima and Nagasaki by the victim as many as 140,000 people in Hiroshima and 80,000 in Nagasaki at the end of 1945. At that time the yield atomic bombs on Hiroshima and Nagasaki 20 000 tones.

While the atomic bomb explosion now more than 70 million tons. The period of fissile material (enriched uranium or plutonium) is designed to be super critical mass.

Forming a chain reaction crash by a sub-critical material to other grains (the "gun" method), or by compressing a sub-critical sphere of material using chemical explosives at the level of density several times the original value away. (The "implosion" method).

2. TNT (Trinitrotoluene)

Trinitrotoluene (TNT, or trotyl) is a pale yellow crystalline aromatic hydrocarbon that melts at a temperature of 354 K (178 ° F, 81 ° C). Has a trinitrotoluene explosive substance alone or mixed, for example in Torpex, Tritonal, Composition B or amatol. TNT was prepared with toluene nitration C6H5CH3; chemical formula C6H2 (NO2) 3CH3 and IUPAC name 2,4,6-trinitrotoluene.

3.Guillotine

Guillotine became famous in the French Revolution. Guillotine name comes from the name of Joseph Ignace Guillotin (1738 - 1814), the person who first proposed this tool as a means of execution.

On April 25, 1792, Nicolas Jacques Pelletier was the first victim of the guillotine. In total, the French Revolution, thousands of people were executed. In Paris alone, an estimated 40,000 people slain by guillotine, including King Louis XVI and his wife Marie Antoinette.

Guillotine is designed to create an execution people probably by blocking the pain as much as possible. Defendant ordered to sleep on his stomach and neck is placed between two wooden beams in the middle where there is a hole where the fall of the knife. At a height of 7 meters, a knife dropped by the executioner and the head of the accused fell on a basket in the front.

Decapitation by guillotine took only a few seconds. Execution by guillotine at the time it became a public spectacle, but guillotine put in jail because it is considered cruel.

The last defendants sentenced to death by this tool are Hamida Djandoubi. He was executed in Marseille on September 10, 1977.

4. Automatic Rifle

General Manuel Mondragon to create the world's first automatic rifle in 1887. Some of his descendants is the AK-47, M16A1, and M-14. Especially for the AK-47, this weapon is the type most often used by terrorists.

5. Agent Orange

Agent Orange was the nickname given to defoliant and herbicides used by the U.S. military in the war herbicides (herbicide warfare) in Vietnam from 1961 to 1971.

Tong-Tong-sized orange-striped 55 liters U.S., approximately 1:1 mixture of two phenoxy herbicides in ester form, 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2.4, 5-T).

When sprayed on a broad-leaf plants, they stimulate a rapid and uncontrolled growth, and finally shed their leaves.

When sprayed on crops such as wheat or corn, will selectively kill only broadleaf plants that are weeds in a field and let the other plants are relatively unaffected.

Imagine if exposed to humans, Agent Orange, the risk of various cancers and genetic defects.

6. Freon

Scientist Thomas Midgley discovered Freon or CFCs in 1930. Manufacture of CFCs was stopped in 1995 due to damage to the ozone layer caused by CFCs.

once banned CFC use, widespread use of ammonia, followed by propane and butane that are less corrosive, including isobutene currently widely used.

Other types of fluid that can be use as the refrigerant carbon dioxide, hydrogen, helium and nitrogen. Generally used for industrial cooling technology that uses these gases provides.

7. Sarin Gas

 In 1938, German chemist Dr Gerhard Schrader discovered the first sarin gas. Currently, sarin classified as WMD by the UN.

Sarin attacks the nervous system, initially causing runny nose and tightness in the chest and the victim had difficulty breathing, felt sick and began to drool.

The victim continues to lose control of all bodily functions, followed by attacks, convulsions and coma. If an antidote is quickly given the victim will die tragically.