chunt of oklahomcommunity ofoklahoma cit. the capitol on sunday. >> that was the tragedy in the ground but new innovations are developed in the lab to protect against disasters. >> we create tornado like vortexes. >> i'm at the national wind institute at texas tech university where they can actually recreate tornadoes. harold janes professor of engineering. designed this vortek. >> understand what happens to structures. >> tornado winds are rated on an es scale which aan indicator of the severity of the storm based on wind spreed an -- speed and debris impact. >> this is ef 3e, 150 miles or less. >> have you ever been in this? >> oh, absolutely. would you like to go? >> i'm going to build up the speed. >> so you're going to leave me here? >> you're good. >> at this point i was wondering just how powerful an es 3 would be. >> wow! >> now i can just about imagine how terrifying a tornado can be. >> to your research you're hoping to be able to recommend how to reinforce building codes. >> that's correct. what we really want to d