Hewitt Drew-It! PHYSICS Screencasts
The Atomic Nucleus and Radioactivity

127. Radioactivity
An explanation of radioactivity.

128. Radioactive Half-Life
Paul talks about his early days prospecting for uranium and how he got his interest in physics. He also explains half-life.

129. The Strong Force
Paul talks about what keeps the nucleus together.

130. Transmutation
Atomic transmutation explained, with examples.

131. Carbon Dating
How Carbon 14 is formed and its use in geometric dating.