These were first used as torture devices in the 1800's. Today most of us use them everyday.

Tools

Story Published: Sep 23, 2008 at 5:00 PM PDT

Story Updated: Nov 21, 2008 at 2:40 AM PDT

Answer: Treadmills.

Weather & Traffic

Icon
Current Temp 64.0 °F
A Few Clouds
More Weather

Weather & Traffic

More Weather

On Demand

Resources and info you need to prepare for the switch to DTV.

Stay Connected

YouNews

This content requires the latest Adobe Flash Player and a browser with JavaScript enabled. Click here for a free download of the latest Adobe Flash Player.

Marketplace