evolution

A clip from Attenborough's Life of Mammals following a San tribesman in the Kalahari on an eight-hour persistence hunt, running down a kudu through harsh heat. It shows tracking, endurance running and the hunter's reaction after the kill.

A short vintage film clip of Seymour Papert, creator of Logo, on using computers to spark children's imagination and learning.

The Computer History Museum's 25th anniversary celebration of the Commodore 64, recorded in December 2007, with a panel including Jack Tramiel and Steve Wozniak. It recounts the machine's launch and history.