dr. shini somara. e a tornado. >> i got in the vortek, to experience force 3 winds. and trust me, to people that force of nature on my skin, it was just unreal. let's take a look. >> thank you very much. >> oh my goodness! coming down right now, major tornado. >> coming down another tornado. >> a deadly tornado rushes towards the u.s. community of oklahoma city. a two mile wide wind tunnel ripped through the capitol on monday. >> oh my god! >> that was the tragedy in the ground but new innovations are developed in the lab to protect against future disasters. >> we create tornado like vortexes. mimicking tornado wind speeds. >> i'm at the national wind institute at texas tech university where they can actually recreate tornadoes. harold janes professor of mechanical engineering designed and built the tornado simulator called vortek. >> in a controlled situation, to understand what happens to structures. >> tornado winds are rated on an ef scale which is an indicator of the severity of the storm based on

dr shini somara is a mechanical engineer. tonight saving baby grace. doctors try a cutting edge treatment to heal this little girl's brain, infusing her with her own umbilical cord blood.

jazeera america [ ♪ music ♪ ] >>> hey, guys, welcome back to techknow, i'm phil torres, joined by dr shini somarad lindsay moran. one of my favourite things about science is we are able to capture mother nature in a lab, take the phenomenon and see them at a university. >> yes, there's nothing more amazing than being able to recreate weather, that's what they were able to do at texas tech university. i got experience a tornado let's take a look. my first shoot for "techknow" was all about tornado technology, which was incredible. that's my area of expertise. it was so exciting flying to oklahoma and texas, where we got to see the facilities being used to research tornados. the passage of this is to learn about the innovation incorporated into building regulations to keep people safe during a tornado. at texas tech they establish the wind institute. and it's there that they have one of the largest tornado simulation laboratories. >> this is vor tech. >> it's great meeting the professor, who talked me through the design of the lab. we create tornado-like things that mimic the wind speed. >> he is m

dr shini somara is a mechanical engineer. tonight saving baby grace. doctors try a cutting edge treatment to heal this little girl's brain, infusing her with her own umbilical cord blood. treatment? >> we hope it rescues the brain >>> and a mother's incredible journey to help her girl. dr crystal dilworth is a molecular neuroscientist. stint she introductions us to a scientist out to change the i'm phil torres. i'm an entomologist. . that's the team, let's do some science. bsh [ ♪ music ♪ ] >>> hey, any, welcome to "techknow" i'm phil torres, joined by crystal dilworth, and shini somara. you are about to take us on a journey, an experimental matthews. >> this is an emotional piece. we followed the retrieval of grace's umbilical cord blues cell, and we had access to where they condition those cells for treatment in the hope of saving her life. let's take a look. >> reporter: it was just after 8:30 by the time sara matthews, her mum and baby grace stepped out of the pick-up truck. and into the north carolina night. this isn't the first time they have com