Antideuterium Wiki - What is the antideuterium?
Deuterium (or hydrogen-2, symbol D or 2H, also known as heavy hydrogen) is one of two stable isotopes of hydrogen (the other being protium, or hydrogen-1). The nucleus of deuterium, called a deuteron, contains one proton and one neutron, whereas the far more common protium has no neutron in the nucleus. Deuterium has a natural abundance in Earth's oceans of about one atom in 6420 of hydrogen. Thus deuterium accounts for approximately 0.0156% (or, on a mass basis, 0.0312%) of all the naturally occurring hydrogen in the oceans, while protium accounts for more than 99.98%. The abundance of deuterium changes slightly from one kind of natural water to another (see Vienna Standard Mean Ocean Water). The deuterium isotope's name is formed from the Greek deuteros, meaning "second", to denote the two particles composing the nucleus. Deuterium was discovered and named in 1931 by Harold Urey. When the neutron was discovered in 1932, this made the nuclear structure of deuterium obvious, and Urey won the Nobel Prize in 1934. Soon after deuterium's discovery, Urey and others produced samples of "heavy water" in which the deuterium content had been highly concentrated. Deuterium is destroyed in the interiors of stars faster than it is produced. Other natural processes are thought to produce only an insignificant amount of deuterium. Nearly all deuterium found in nature was produced in the Big Bang 13.8 billion years ago, as the basic or primordial ratio of hydrogen-1 to deuterium (about 26 atoms of deuterium per million hydrogen atoms) has its origin from that time. This is the ratio found in the gas giant planets, such as Jupiter. However, other astronomical bodies are found to have different ratios of deuterium to hydrogen-1. This is thought to be a result of natural isotope separation processes that occur from solar heating of ices in comets. Like the water cycle in Earth's weather, such heating processes may enrich deuterium with respect to protium. The analysis of deuterium/protium ratios in comets found results very similar to the mean ratio in Earth's oceans (156 atoms of deuterium per million hydrogens). This reinforces theories that much of Earth's ocean water is of cometary origin. The deuterium/protium ratio of the comet 67P/Churyumov-Gerasimenko, as measured by the Rosetta space probe, is about three times that of earth water. This figure is the highest yet measured in a comet.Deuterium/protium ratios thus continue to be an active topic of research in both astronomy and climatology..
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Definitions of "antideuterium"
- The antimatter equivalent of deuterium. noun
The word "antideuterium" in example sentences
A schematic showed the volume of antideuterium slush in the reactor-B pod beginning to be reduced, passing through the system of magnetic conduit into the D containment pod.. [Betrayal]
If the pod was damaged, if the antideuterium slush came into contact with normal matter, the resulting reaction would vaporize the station.. [Betrayal]
Together, he and Berat had replaced the antimatter-containment pod on reactor B and refilled it with slush antideuterium, and the entire system was now back on-line.. [Betrayal]
So it was with trepidation, but also a certain amount of excitement, that Geordi had gone down to the pod access area on Deck 42 and run about a cubic meter of the antideuterium slush into a magnetic bottle.. [INTELLIVORE]
This display will indicate your craft’s antideuterium fuel supply.. [The Starfleet Survival Guide]
It’s all very well to talk about siphoning antideuterium slush around by the hektoliter, like so much beer moving from the keg to the tap.. [INTELLIVORE]
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