11.40 The Changing Experience of Women: Women Speaking: 2
Three women with careers talk about the pressures they have experienced in their private and professional lives.
(R)

12.05 Geology: The Earth As a Machine
A powerful intuition and a keen eye focused on the scenery of his native Scotland, allowed 18th century naturalist James Hutton to understand the Earth as a heat machine, and to be the first to estimate its great age.
(R)

(to 0.35)