persistence

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.

Inventor Marc Griffin pitches his game Bulletball to the American Inventor judges. The clip shows a long, costly commitment to a game idea.

The Slow Mo Guys film a TV and screens with a high-speed camera to show how displays build an image. The footage includes CRT-style scanning and how pixels light up over time.

Gary Vaynerchuk's Web 2.0 Expo keynote on building a personal brand in social media. He urges keeping a day job while building something on the side, with passion and persistence, in a loud and profane style.