A controlled nuclear fission reaction releases one million times more energy per kg than a chemical reaction such as burning coal, oil or gas. This means much less fuel is required than for a ...

Both fusion and fission reactions shift the size of the reactant nuclei towards higher bounded nuclei. Does Fusion produce radioactive nuclear waste the same way fission does? Nuclear fission power ...

The amount of energy produced from fusion is very large — four times as much as nuclear fission reactions — and fusion reactions can be the basis of future fusion power reactors. Plans call for ...

At first, scientists proposed that the uranium deposits had been forced to undergo a sustained nuclear fission reaction. However, further analysis found that the uranium had gone through a ...

Many of the features of the reactor are designed to control the speed of the reaction and the temperature inside the shielding. An uncontrolled fission reaction is the basis of an atomic bomb.

By the end of the year the physicist Werner Heisenberg had calculated that nuclear fission chain reactions might be possible. When slowed down and controlled in a "uranium machine" (nuclear ...

Scientists have succeeded in maintaining an "artificial sun" here on Earth for a whopping 17 minutes and 46 seconds.

In a conventional reactor these neutrons are supplied by the fission reaction itself, which requires a certain concentration of the correct fissile isotopes (typically 235 U or 239 Pu) to be ...

In their model, rumors act like neutrons, the small particles that kick off nuclear fission. These rumors are seen by individuals, who send them careening into other people in a chain reaction.