query: Why is deuterium and tritium used in fusion reactions rather than two deuterium?
positive_passages.docid: 156098
positive_passages.text: Fusion: Why deuterium and tritium?
negative_passages.docid: 98846
negative_passages.text: Why is Kinetic Energy = (-) Total Energy and Potential Energy = 2 $\times$ Total Energy?
negative_passages.docid: 110089
negative_passages.text: Deuterium density in seawater
negative_passages.docid: 65294
negative_passages.text: Can an electron be in two places at the same time?
negative_passages.docid: 121231
negative_passages.text: How does gravity cause nuclear fusion in stars?
negative_passages.docid: 34240
negative_passages.text: Nuclear Fusion with extremely high pressure and low temperature
negative_passages.docid: 52974
negative_passages.text: Why are the higher angular momentum states of a hydrogen atom closer to the nucleus?
negative_passages.docid: 23154
negative_passages.text: Can open, unsafe nuclear fusion reaction burn the atmosphere?
negative_passages.docid: 142916
negative_passages.text: Proton: 2 up, 1 down quark, Neutron: 2 down, 1 up, how can Neutron: proton + electron?
negative_passages.docid: 100870
negative_passages.text: In De Broglie's Explanation for Bohr's Quantization Condition, why do we not use 2πr = n λ/2, why do we use 2πr = n λ?
negative_passages.docid: 89857
negative_passages.text: What is the lowest possible theoretical temperature that nuclear fusion can occur at?
negative_passages.docid: 70709
negative_passages.text: Why is cold fusion considered bogus?
negative_passages.docid: 94031
negative_passages.text: Triode - how come grid is "more negative" than cathode?
negative_passages.docid: 104973
negative_passages.text: Why are hydrogen energy levels degenerate in $\ell$ and $m$?
negative_passages.docid: 31367
negative_passages.text: How is the Starkiller Base supposed to work more than one time, given how it draws its power?
negative_passages.docid: 48486
negative_passages.text: Isospin conservation for total isospin or third component of isospin?
negative_passages.docid: 10413
negative_passages.text: Why do quarks tend to bond in groups of three?