This series is about one of the great adventures in the history of science: the long, continuing quest to understand what the world is made of. Join host Michael Emerson to see not only what scientific explorers discovered, but also how.

Unruly Elements (1859-1902)
Dmitri Mendeleev invents the periodic table, bringing order to the elements. This order is shattered when Marie Curie discovers radioactivity, revealing that elements can change identities and that atoms contain undiscovered parts.