Sentences with phrase «deuterium than hydrogen»

The interaction produces more deuterium than hydrogen.

Not exact matches

However, the Rosina mass spectrometer aboard Rosetta found that the ratio of deuterium to hydrogen in the comet is far greater than that found on Earth, adding to the growing body of evidence that the water on Earth was delivered not by comets, as previously thought, but by asteroids.

Deuterium, a type of hydrogen with a neutron, is heavier than regular hydrogen.

Analysis of the water leaving Venus's atmosphere, however, shows that many of the hydrogen ions are actually a stable isotope of the element called deuterium, which consists of a proton and a neutron (rather than just a proton) in its nucleus.

Because comets formed so far from the sun, they tend to have high deuterium / hydrogen ratios — much higher ratios than in the moon's interior, where the samples in this study originated.

On Earth, deuterium is much rarer than hydrogen.

PHWRs are similar to PWRs, but use raw uranium rather than enriched uranium oxide as fuel, and deploy heavy water — in which hydrogen is replaced by deuterium — as both moderator and coolant.

Hydrogen escapes faster because it is lighter than deuterium.

At electrical breakdown, the energies in the surging electrons were thousands of times greater than 10 — 19 MeV, so during the flood, bremsstrahlung radiation released a sea of neutrons throughout the crust.83 Subterranean water absorbed many of these neutrons, converting normal hydrogen (1H) into heavy hydrogen (2H, called deuterium) and normal oxygen (16O) into 18O.

How did deuterium (heavy hydrogen) form, and why is its concentration in comets twice as great as in earth's oceans and 20 — 100 times greater than in interstellar space and the solar system as a whole?

Heavy water: Water containing a significantly greater proportion of heavy hydrogen (deuterium) atoms to ordinary hydrogen atoms than is found in ordinary (light) water.