. >> reporter: dr brian house runs "sustain" - short for: surge, structure, atmosphere interaction facilitywhy is it important to recreate the conditions in a chamber? >> there's a couple of things that we are keen to figure out. what causes hurricanes to intensify, to go from a cat 3 to a cat 5 in less than 24 hours, and is important not just for hurricanes, but climate change issues >> reporter: we were invited to see a full-speed demonstration. >> there's no computer model that gets to the physics of what's when the high wind is ripping the top off a wave. >> reporter: researchers want a better understanding of the transfer of heat from the ocean surface and sea spray to the atmosphere. what wind speeds are we at now? >> at the equivalent 80 miles per hour, category 1 storm. >> reporter: the house is battered and it's only category 1. >> the large waves and wind - that's what we are trying to capture. >> reporter: sensors track the force pushing against the structure. >> we need to understand how buildings can be resilient to these conditions. >> reporter: time to crank it up to full spe

brian threw a ball in the house! >>> welcome back. some quick headlines for you. 23-year-old dental assistant confesses to driving dr.tcher's kill tore his destination. crystal cortez says she was given $500 by an unknown man to drive to the apartment garage last week. >>> and families visiting the indianapolis zoo were forced to seek shelter for an hour after a cheetah escaped from its enclosure. the animal was found. they are investigating out the animal escaped. >>> it is labor day and it's time to shop, shop, shop, for the best end of summer sales but before you show up at the stores, you need to know what to shop for. regina conway is here with everything you need to know. end of summer, beginning of fall, perfect time to go hiking and camping, perfect time for a camp fire and you got some deals. >> absolutely. labor day is that end of season sale for all of those things you want for outdoor enthusiasts. rei is having a really good sale. this backpack, there's a men's and women's version, both are selling for $219. there's an additional 20% of one rei outlet item, this head lamp we got there for $32 normally $55