Timeless Atoms

In this book we explore the world of atoms: what atoms are, what they are made of, and why atoms are timeless, never aging or wearing down. Almost all atoms will exist until the end of time.

We’ll discover why a few rare atoms are radioactive, decaying in predictable ways, and why these radioactive atoms exist in all living things, including us.

We’ll examine how we can date the past -- paintings, human artifacts, fossils, and even the Earth and the Sun — using atoms that are timel…