Nuclear Decay: A Clock Without Peer

Because the nucleus is so small and tightly bound, it is inaccessible to ordinary-scale influences. You can't throw a monkey wrench into the works of this clock!

Gravity? No!

Heat? No!

Chemical action? No!

Electric discharge? No!

The nature of the radioactive half-life is such that it is completely independent of environmental factors and as a nuclear clock, its rate cannot be changed without changing fundamental physical constants. Taking alpha decay as an example, the alpha decay half-life can be calculated in terms of fundamental physical constants.

Radioactive decay rates cannot be changed without changing the whole framework of the fundamental constants of the universe, which are finely tuned for the very existence of the universe as we know it.