John discusses the importance of learning about the atomic nucleus from the top of an extinct volcano rising some 20,000 feet above the ocean floor. Duration: 2:19.
A talking head discussion of the discovery of radioactivity and the people who discovered. it. Duration: 4:30.
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The properties of three different types of radiation are discussed. Duration: 4:18.
Radioactive samples are held up to a Geiger counter to demonstrate the differing penetrating powers of different types of radiation. Duration: 2:45.
Watch these additional videos to complete this tutorial.