In this undated image released by Discovery Channel, Jamie Hyneman, left, and Adam Savage are shown in an episode from Discovery Channel's "Unchained Reaction." As in the Tortoise and the Hare fable, ... more 
In this undated image released by Discovery Channel, Jamie Hyneman, left, and Adam Savage are shown in an episode from Discovery Channel's "Unchained Reaction." As in the Tortoise and the Hare fable, they illustrate that speed isn't always about size or how fast someone is traveling. In each episode, two five-person teams of engineers, designers and the like are given five days and a warehouse full of tools and materials to create a contraption based on a simple theme, such as "light vs. heavy" or "fire and ice." Then, Hyneman, Savage and a guest judge decide which one is the most inventive. The show premieres March 18, at 10 p.m. EST on Discovery. (AP Photo/Discovery Channel, Rahoul Ghose) less 
1 / 28
Associated Press | Photo By Discovery Channel, Rahoul Ghose
Thu, Mar 15, 2012 1:32 PM EDT