Solved cryptogram

A radioactive atom has no age and no schedule. A half-life is a statement about crowds.

Physics Facts, sourced to HyperPhysics, Georgia State University.

Solve it yourself

This fact is a cryptogram here: 69 letters over 19 different ones, graded medium.

Or go to the puzzle’s own page first.

What it means

An atom that has sat unchanged for a billion years is no likelier to decay in the next second than one made this morning. There is no aging and no countdown inside it, only a fixed chance per unit of time. That is exactly what makes the bulk behavior so reliable: across enough atoms the randomness averages out into a smooth curve, and the curve is what dates a piece of charcoal or a rock.

The claim comes from HyperPhysics, Georgia State University.

Nearby in the collection

The facts either side of this one.

About as hard as this one

Scored closest to it by the model behind our guide to solving cryptograms.

Play a cryptogram

Every Physics Facts cryptogram · All fact collections