August 27, 2001

The Riddle of the Compass: The Invention that Changed the World

Guest: Amir D. Aczel.

Most historians agree that the compass has its origins in ancient Chinese lodestones. It was not utilized for sea travel, however, until the Italians unleashed its formidable powers in the twelfth century. Amir D. Aczel, author of The Riddle of the Compass, joins us today on Focus to share the story of navigation through the ages and the impact that the rise of the compass made on history.


August 15, 2001

The Seven Sins of Memory: How the Mind Forgets and Remembers

Guest: Daniel L. Schacter.

Absentmindedness, transience, blocking, misattribution, suggestibility, bias, and persistence. These are The Seven Sins of Memory according to Daniel Schacter. He joins Focus today to explore these instances of memory failure, suggesting that "failure" is actually a misnomer—and that these miscues are signs that memory is working as it should.


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