munro

Randall Munroe, creator of xkcd, gives an Authors@Google talk in 2007 about the webcomic and his background, followed by audience Q&A. Donald Knuth and Guido van Rossum ask questions during the session.

A 1937 GM-produced film explaining how the automobile differential lets wheels turn at different speeds around a corner. It uses clear animations and cutaway demonstrations to build the idea from first principles.

A 1930s Chevrolet training film explaining the principles and development of the differential gear. It builds the idea step by step from first principles to the finished mechanism.

A motorcycle safety video on the SMIDSY (sorry mate, I didn't see you) accident, explaining the perception and optical illusion that makes drivers fail to see riders, and how riders can spot the signs and avoid it.

In Top Gear's second part, racing driver Sabine Schmitz tries to lap the Nurburgring in a Ford Transit van in under ten minutes. She finishes just over the mark.

A short clip of a Renault F1 engine playing God Save the Queen by precisely controlling its RPM, recorded at Goodwood. It demonstrates how finely the drivetrain can be controlled.

A Consumer Reports and IIHS crash test pitting a 2009 Chevy Malibu against a 1959 Bel Air. It shows how much better modern cars protect occupants.

An IIHS crash test pitting a 1959 Chevrolet Bel Air against a 2009 Malibu in a frontal offset collision for the institute's 50th anniversary. The old car's occupant space collapses while the modern car's protects its driver.

Top Gear segment in which Richard Hammond drives a Renault R25 Formula 1 car around Silverstone for two laps. He struggles with the car's demands.

Top Gear segment in which Hammond and May try to turn a Reliant Robin into a space shuttle. Launching is easy, but landing it safely is the problem.