The nuclear fusion was first experimentally achieved in 1934 ( by Enrico Fermi).
Enrico Fermi - this was the reactor built on a rackets court in Chicago in 1942.
Enrico Fermi in December 1942 in Chicago, USA
creating the first atomic bomb
Enrico Fermi, 1942
Lise Meitner
Nuclear energy
Because it is energy derived from the heat made by a (Hopefully) controlled nuclear reaction. The nuclear reaction involves the nucleus of Uranium 235 (or possibly Plutonium 239) fissioning or splitting which releases a large amount of energy, so it is a nuclear process, not a chemical one such as would occur between atoms or molecules.
There are many ways a nuclear accident may occur, however most nuclear power plant accident occur due to problem in an reactor.
You are probably referring to nuclear fission. this occurs in some isotopes of heavy elements, most notably Uranium 235 and Plutonium 239. The fission of the nucleus releases energy, and forms two fragments which are nuclei of two lighter elements. The reaction can be controlled to occur at a steady rate thus releasing a steady supply of thermal energy.
Once a meltdown occurs at a nuclear power plant, there is no way to stop or slow the reaction. However, Nuclear power plants are the most technologically advanced power plants in the history of man-kind. The meltdowns themselves are incredibly rare, but if they do occur the immediate areas are instantly alerted and evacuated. The contamination of the surrounding area is typically not very quick to begin with, as the walls of structures of Nuclear Power Plants are very thick and designed to withstand nearly anything thrown at them. Of anything that could happen, a meltdown at your area Nuclear Power Plant should be at the very bottom on your list of concerns.
In this solar system, it is on the sun.
Nuclear energy
Because it is energy derived from the heat made by a (Hopefully) controlled nuclear reaction. The nuclear reaction involves the nucleus of Uranium 235 (or possibly Plutonium 239) fissioning or splitting which releases a large amount of energy, so it is a nuclear process, not a chemical one such as would occur between atoms or molecules.
Enrico Fermi, 1942
They have a starter in a bomb and what this will do is shoot a neutron in the nuclear fuel starting a chain reaction
The critical mass
Natural nuclear fusion reactions occur in all stars
High Energy produced with high velocity which required for nuclear reaction
In the nucleus of the fuel material, such as uranium-235
The very first nuclear reaction (in our Solar System)occurred when a cloud of interstellar gases collapsed, over a period of about 10 million years, about 5 billion years ago, and then grew hot enough to form a fusion reaction with hydrogen becoming helium, resulting in the formation of our Sun.
fuel assemblies in the core.
A nuclear disaster may occur when the radioactive materials are mishandled and which may lead to radioactive exposure or a chain reaction of nuclear fission, fusion. Most of these disasters are induced by the man made mistakes.