Worst Nuclear and Radiation accidents in history

Nuclear Fission:

    Atoms are everywhere. It contains a nucleus. The nucleus of an atom splits into two smaller nuclei. This fission released a lot of amount of energy and emitted Gamma rays. This kind of reaction is known as Nuclear fission. 

Hiroshima :

    At 8:16 a.m on August 6, 1945, the People of Hiroshima did not expect that day. A nuclear fission weapon proved Einstien's theory(E=mc^2) mercilessly accurate. Sixty-four kilograms of Uranium were bombed 500 meters above the Japanese city of Hiroshima. Seventy-eight thousand people died immediately. By the end of the year, another 25000 men, women and children died of the radioactive syndrome. This incident happened for the first time in history.

Radiation:

Radiation is all around us. We cannot feel or smell radiation. Stone, brick and above all materials contain radioisotopes. Our human body also emits radiation. Human beings and bananas have a small amount of radioisotope potassium 40. The muscle contains more potassium than other tissue. So men are generally more radioactive than women. But, High energy of radiation damage living organisms. 

     Alpha, Beta and comma are high-level radiation. Alpha particles do not penetrate our skin. A small sheet of paper can block this kind of particle. But we swallow or inhale the particle that caused death.

Example: Radon 222 ,Polanium 210

    Beta particles penetrate living tissue. It burned the skin. Paper does not block beta particles, but Aluminium foil or separated by a sufficient distance. Beta type of radiation is dangerous radiation.

Gamma waves were travelling at the speed of light. It travels long distances and destroys electronics.

Radiation Accidents:

X-ray discovered by Wilhelm roentgen in 1895.He took his wife lefthand complete wedding ring photograph using X-rays that radiation affected her body. So he made precautions against the rays. But other scientists do not take precautions for their research. Another radiation accident happened in 1896.

In 1896 Thomas Alva Edison devised the fluoroscope. Edison's assistant placed a hand on the top of the box. Radiation burns his hand. So he used his other hand. Doctors removed his left arm and his right arm's four fingers, but cancer spread on his body, so he died. He is the first victim of radiation.

Marie curie researched the properties of radioactive carbon. She died of bone marrow failure caused by radiation. 

The clock worker licked the brush whose tip dipped into the radium paint. They suffered from syphilis disease. Finally, the clock shop owner accepted radium makes that problem on workers lips.

     Manhattan Project was a research and execution project that produced nuclear weapons during world war 2. 24-year-old nuclear physicist Harry K. Daghlian Jr. worked on the manhattan project. He worked in a laboratory in Los Alamos, New Mexico. Two weeks later, the Hiroshima bomb exploded. His hand slipped, and a ball of plutonium surrounded by tungsten carbide bricks—went critical. He saw a blue flash gamma-ray 500rem radiation spread. He disassembled the project and then walked away and admitted himself to the hospital. Twenty-five days later, he went into a coma stage and died. He is the first victim of close exposure to nuclear fission.

Nagasaki:

After the Hiroshima incident, Japan didn't surrender. So America threw another nuclear bomb on Nagasaki. Nagasaki explosion, 35,000 people died from radiation. Some people had leukaemia, the disease linked to radiation.

Nuclear power plant Accidents

World leaders decided to make nuclear energy only for commercial purposes. So Nuclear Plant built a lot of countries to produce electricity from there. Unfortunately, some worst nuclear accidents happened in the nuclear power plant.

Mayak Accident

On September 29, 1957, a massive explosion occurred in the southern Urals, USSR. Meanwhile, many Ozniak citizens watched a game of soccer in the stadium. Within a few hours, radioactive ash spread. Soldiers who worked in a nearby stadium felt vomiting and bleeding. Nextday, radioactive rain and black snow fell in nearby villages. Ten thousand people evacuated. Farmer's lands are affected by radiation. Mayak nuclear accident was one of the worst nuclear accidents in history. But USSR government hide this incident for some decades.

United Kindom

On October 9, 1957, two thousand tons of graphite in Windscale Pile Number One caught fire. It burned for two days, releasing radiation across the United Kingdom and Europe and contaminating local dairy farms with high levels of iodine 131. The British government would not fully acknowledge the scale of the accident for another thirty years.

USA

On March 28, 1979 handful of water purifying resin blocked the reactor valve in a three-mile island nuclear station in Pennsylvania, USA. Radiation spread over the island.No one died from radiation, but 1,35,000 people in Pennsylvania evacuated from their houses.

USSR-Chernobyl

On April 26, 1986, reactor no 4 exploded in Chornobyl, Ukraine. The USSR government hide that information from the whole world. Radioactive rain fell on Europe and some other countries.USSR decided to evacuate people from the near contaminated zone. People evacuated from the contaminated area. But they never return to their town. Two engineers got sudden death. Firefighters, engineers and liquidators try to control the radiation. Those who worked near contaminated zone they affected by ARS syndrome.

Fukushima

On March 11, 2011, a nuclear accident happened in Fukushima, Japan.No one was killed or injured in the Nuclear accident. But Three hundred thousand people were evacuated from the surrounded area.