Wood Drill

Actual Elapsed Time: 1.2 seconds

The sharpe edge of a drill bit cuts into a piece of wood. By slowing down the action to one tenth normal speed, we can see how the drill bit both cuts the wood and lifts it up and away from the hole. The shape of the drill bit serves two purposes. The blade is sharp and angled where it hits the wood. The angled edge works as an inclined plane that converts the rotation of the drill into a cutting and lifting force. The spiral part of the bit carries the wood chips away from the drill's path.

How This Clip Was Made:

This slow-motion video was created using a special video camera that takes 250 images a second, as opposed to only 30 images a second for a normal video camera. The video was then digitized and transferred to a computer. Production: Paul Shain, Seth Restaino, Heidi Frieze. Post-Production: Brennan Doyle. Special Thanks: Dick Freeborg, NAC Visual Systems.

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