Noun
English Wikipedia has an article on:helium-3Wikipedia
helium-3 (uncountable)
(physics) The rare isotope of helium, 2He, that has a single neutron
There are few moments in science in which you genuinely are excited. The discovery of superfluidity in helium-3 was one of those moments. David Lee
Five centuries from now - barring unimaginable catastrophe - the moon will be developed real estate. There's economic incentive to exploit the moon - the helium-3 will be useful in powering fusion reactors, and the rare earth elements could supplant the limited terrestrial supply of these materials. Seth Shostak
Additionally, baryons such as protons and neutrons ( subatomic particles composed from three quarks) and some atoms (such as helium-3 ) are fermions, and are therefore subject to the Pauli exclusion principle as well. Source: Internet
Again assuming 100% conversion efficiency, 6.7 tonnes per year of helium-3 would be required for that segment of the energy demand of the United States, 15 to 20 tonnes per year given a more realistic end-to-end conversion efficiency. Source: Internet
Algeria's annual gas production is assumed to contain 100 million normal cubic metres and this would contain between 7 and 24 m 3 of helium-3 (about 1 to 4 kilograms) assuming a similar 3 He fraction. Source: Internet
As a further downside, the rates of reaction for helium-3 fusion reactions are not particularly high, requiring a reactor that is larger still or more reactors to produce the same amount of electricity. Source: Internet