With an average energy of roughly 1 million pounds of TNT, tornados are one of nature’s most powerful phenomena. And while atmospheric scientists know a great deal about tornados, such as the conditions in which they are most likely to form, no one yet understands exactly what makes a tornado or how to accurately predict their creation.
Running time 2:45 minutes.

Go inside Electronic Recyclers to see how they break down millions of pounds of electronics every month. Everything from computers to cell phones, TVs to Xboxes, comes through their doors to be crushed, shredded, melted down and reused.
Running time 5:14 minutes.

Is there life on planets in other star systems? It's a very old question. But finding the answer may get simpler with a new invention by astrophysicist, professor and inventor Webster Cash.
Running time 5:55 minutes.

A Western wouldn’t be a Western without stampedes, stagecoaches, shoot-outs on horseback or simply cowboys riding into town. Meet Dave Rogers, a wrangler for Movin' On Livestock.
Running time 5:33 minutes.