-
Uranium
Uranium was discovered by Martin Klaproth, a German chemist, and named after the planet Uranus. Then in 1896 Henri Becquerel found that pitchblende (an ore containing radium and uranium) caused a photographic plate to darken. He went on to demonstrate that this was due to beta radiation (electrons) and alpha particles (helium nuclei) being emitted. -
A new discovery
At the University of Wurzburg, Roentgen was working when he noticed a strange fluorescence coming from a nearby table. Upon further observation he found that it originated from a partially evacuated a tube, covered in opaque black paper which he was using to study cathode rays. He concluded that the fluorescence, which penetrated the opaque black paper, must have been caused by rays. This phenomenon was later coined x-rays and though the phenomenon of x-rays is not the same as radioactivity, -
Discovery of radioactivity
Henri Becquerel was studying x rays (invented 5 years before) when he was trying an experiment, he exposed potassium uranyl sulfate to sunlight and then placed it on photographic plates wrapped in black paper, believing that the uranium absorbed the sun’s energy and then emitted it as x-rays. -
Period: to
Invention to now
The discovery of radioactivity all the way to us now -
New elements
Marie curry with her husband discovered that different particles has more radiation than others like lithium -
Particles of radioactivity
They concluded that the ore contained other radioactive elements. This led to the discoveries of the elements polonium and radium. It took four more years of processing tons of ore to isolate enough of each element to determine their chemical properties.
Ernest Rutherford, who did many experiments studying the properties of radioactive decay, named these alpha, beta, and gamma particles. -
First radioactive x ray
X-rays are forms of radiant energy, like light or radio waves. Unlike light, x-rays can penetrate the body, which allows a radiologist to produce pictures of internal structures. The radiologist can view these on photographic film or on a TV or computer monitor.
X-ray examinations provide valuable information about your health and play an important role in helping your doctor make an accurate diagnosis. -
Discovery of the nuclear bomb
Within seven months of the discovery of the neutron, and more than six years before the discovery of fission, Leo Szilard conceived of the possibility of a controlled release of atomic power through a multiplying neutron chain reaction, and also realised that if such a reaction could be found -
Nuclear explosion
During the final stage of World War II, the United States detonated two nuclear weapons over the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945, respectively. The United States dropped the bombs after obtaining the consent of the United Kingdom. The two bombings killed at least 129,000 to 290,000 people, most of them where killed by the nuclear radiation afterwards. They remain the only use of nuclear weapons in the history of warfare. -
Power plant
Electricity was generated by a nuclear reactor for the first time ever at the X-10 Graphite Reactor in Oak Ridge, Tennessee in the United States, which was the first nuclear power station to power a light bulb. -
Had an idea
In 1992 Ford and Camaro planned on making a nuclear powered car but failed when people thought it would brake or have engine problems it would be very dangerous to especially pregnant people and baybes -
Radioisotopes
Radioisotopes are used as tracers in medical research. People ingest these isotopes which allow researchers to study processes like digestion and locate medical problems like cancers and obstructions within an individual's digestive tract. -
Radioactive waste
Radioactive waste is waste that contains radioactive material. Radioactive waste is usually a by-product of nuclear power generation and other applications of nuclear fission or nuclear technology, such as research and medicine. Radioactive waste is hazardous to all forms of life and the environment, and is regulated by government agencies in order to protect human health and the environment.
