21. It smashes together atoms to release energy, rather than splitting them apart as modern fission reactors do. 22. Deuterium oxide is called heavy water, and is used in fission reactors , ie standard nuclear power plants. 23. "Sevmorput " is powered by a single KLT-40 nuclear fission reactor with a thermal output of 135 megawatts. 24. In two regions of Oklo, Gabon, Africa, natural nuclear fission reactors were active over 1.5 billion years ago. 25. The plutonium fission reactor was most likely left installed underneath Mr . Fusion as a backup power source. 26. But in recent years, it has faced domestic protests over the storage of waste from those fission reactors . 27. Burnup is an important factor in determining the types and abundances of isotopes produced by a fission reactor . 28. The output of fission reactors is controllable . "-- talk ) 21 : 57, 15 March 2010 ( UTC) 29. In 1956, Paul Kuroda of the University of Arkansas postulated that a natural fission reactor may have once existed. 30. It is similar to the national laboratories in the United States, such as research and design of fission reactor concepts.
