Disc 1. A tour of the nucleus and nuclear forces --
Curve of binding energy: fission and fusion --
Alpha, beta, and gamma decay --
Radiation sources, natural and unnatural --
How dangerous is radiation? --
The liquid-drop model of the nucleus --
Disc 2. The quantum nucleus and magic numbers --
Particle accelerators: schools of scattering --
Detecting subatomic particles --
How to experiment with nuclear collisions --
Scattering nucleons in singles or in pairs --
Sea quarks, gluons, and the origin of mass --
Disc 3. Nuclear fusion in our Sun --
Making elements: big bang to neutron stars --
Nuclear weapons were never "atomic" bombs --
Harnessing nuclear chain reactions --
Nuclear accidents and lessons learned --
Disc 4. The nuclear fuel cycle and advanced reactors --
Nuclear fusion: obstacles and achievements --
Killing cancer with isotopes, x-rays, protons --
Medical imaging: CT, PET, SPECT, and MRI --
Isotopes as clocks and fingerprints --
Viewing the world with radiation.