Sentences with phrase «know radioactive nuclei»

Not exact matches

This explains why it took researchers nearly 30 years to catch a first glimpse of neutrinos, although their existence had been first postulated in 1930 to explain an apparent violation of the conservation of energy in the radioactive decay of unstable atomic nuclei known as beta decay.

Then they will load the trap into a van and drive it a few hundred metres to the site of a neighbouring experiment, known as ISOLDE, that produces rare, radioactive atomic nuclei that decay too quickly to be transported anywhere themselves.