shini somara shini somara is a mechanical engineer. as scientists test new building tines can they survive the most powerful twisters on the planets? kosta grammatis, feeding a hungry planet. he's touring the farm going inside one of america's busiest airports. and i'm phil torres, i'm an entomologist. i study spiders in the rain forest of peru. that's our program, let's do some science. ♪ ♪ are hey guys welcome to "techknow". i'm phil torres and here with kosta and shini. here in the u.s. when you think about tornado alley, you think of oklahoma. you recently went there. >> very high frequency of tornadoes, 50 on average. we went to moore, oklahoma, it was devastated by tornadoes on may 20th. we went to university technologists, let's take a look. >> west side of burton we have a major tornado coming down. >> may 20th, 2013, one of the worst tornadoes on record is captured on a time lapse video that went viral. >> people in west moore must be underground for this tornado. we have large large chunks of debris. >> the entire nation watc

shini somara shini somara is a mechanical engineer. as scientists test new building tines can they survive the most powerful twisters on the planets? kosta grammatis, feeding a hungry planet. he's touring the farm going inside one of america's busiest airports.

shini somara, "techknow" scientist reports. >> oh, my. . >> coming down right now, major tornado. >> deadly tornado rushes towards the u.s. community of oklahoma city. the 2-mile wide wind tunnel ripped through the state capital on monday. >> oh, my good. >> that was the tragedy on the ground. new innovations are being developed in the lab to protect against future disasters. >> we create things that mimic the characteristics of tornado wind speeds. >> i'm at the national wind institute at texas tech university, where they can recreate tornados. >> darrell james designed and built a simmualator called vor tech. >> it allows us to repeatedly reproduce in a controlled pattern and understand what happens to thrusters. >> do you sit in the vortex? >> all the time. would you like to go. >> you'll leave me here on my own? >> you're good. >> i was wondering how powerful an ef3 could be. now i can just about imagine how terrifying a tornado could be. >> we are pleased to have shini somara join us from los angeles. i loved story. so the winds you stood in, 150 miles per hour, what did it feel

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. but this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. >> that is a harsh reality that's hard to watch. welcome back. we're talking about haiti. how far it's come four years after its devastating quake. ben, is there any way to know how much the money donated actually got in the hands of the haitian people or programs that directly benefit them? >> overall not really. the organizations that are raising these dollars are not subject to information laws. you can look in their tax returns to see how much they spent in the caribbean each year in the last three years. but in their tax returns, they say operations in the caribbean, that's it. unless they tell you specifically what they've done, that's the problem. the partnerships and relationships maybe a bunch of organizations a

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. but this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. >> john henry smith has more. >> the ruling by arbitrator frederick harrow wits is in a fight that rodriguez began waging when his 211-game suspension began. a-rod showed up at the park any way. >> i'm going to respect the process. apparently rodriguez met the appeals process. he quickly challenged the ruling, taking aim at major league baseball and commissioner bud selig in the process. all this in the wake of rod guesrodriguez's name being linko performance-enhancing drugs and bio genesis. after an investigation major league baseball suspended rodriguez, and hi said it was de to, quote: >> selig went on to say: >> reporter: nevertheless the yankee slugger continued playing throughout the season. rodriguez filed a lawsu

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. but this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. the inquiry had recommended better rail maintenance and >> gardens winter and chicago's o'hare airport, you don't often hear those terms put together, especially in the dead of winter, especially this winter. but an innovative gardening technique is making it possible. "techknow" gives us the scoop on vertical farming and what it may mean for america's urban centers. >> reporter: for over 8,000 years we've been plowing dirt to grow our food. we got so good at it that 80% of the farming land is in use. we can expect another 3 billion people on earth to join us for dinner. on average, the united states produce travels 1500 miles losing valuable nutrients and taste along the way. how can we improve our food while continuing

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. but this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. fema sending clean water to west virginia in the wake of a toxic chemical spill. hundreds of thousands can't drink or bathe. >> the united states is reportedly considering sanctions on south sudan if the violence is not contained soon. thousands are packing into the camps if the risk of disease escalates. delegates are the ethiopia trying to hammer out a deal to apiece both sides. >> in central african republic, the president steps down. safety. >> an indian diplomat is back in her home country after the u.s. ordered her to leave on visa fraud charms. an american counterpart has been september packing. india's foreign minister says it is not a standoff. >> these are al jazeera america sundays. >> it was almost a miracle.

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. but this twister is created in ... institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. >>> welcome back it to "north dakota story." i am ray sworees. the baseball hall of fame will induct players this summer. baseball writers floated greg maddox, many big stars from the steroid era will have to wait. jonah kerry, has baseball finally, grasped the nettle? it was later than other sports to create standards, to impose a testing regimen. going forward, will it at least be clear enough about the players who are playing now, whether they were playing clean? >> i would actually say that baseball is leaps and bounds ahead of the three occurring north american team sports. you can talk about the olympics being ahead in cycling and so forth but nfl, nba and nhl, they look the other way. what comes to mind here in denver, a suspension for ped use. h

techknow's shini somara goes straight into the storm. winds of 150 miles per hour.ut this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. >> personal computers are so 20th century. if you need proof, taisales of desktop and laptop computers fell 10% in 20s 13 according to gartner data, the steepest annual decline ever. they cited the shift to mobile as the main reason. but the fourth quarter, pc sales alone dropped 7%. lenovo was top seller worldwide followed by hewlett-packard. me. he told me if i paid him a thousand bucks he could get me 100 followers on twitter. i ignored it, choosing to acquire my social media friends the old-fashioned way. for many companies, building a good reputation increasingly involves having a lot of followers on twitter and friends on facebook. >> that's given rise to businesses that sell thousands of fake friends for just a few

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. but this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. crisis? >> i think it's going to >> every sunday night al jazeera america presents the best documentaries. a historic election >> we have 47% of our people who pay no income taxes... >> we take you behind the scenes >> i'm rick santorum, i'm running for president... >> no barriers... >> i intend to be the nominee that defeats barack obama >> no restrictions... >> i think we're catching on... >> no filters... >> my guess is they won't be voting for me... >> al jazeera america presents caucus al jazeera america. we understand that every news story begins and ends with people. >> the efforts are focused on rescuing stranded residents. >> we pursue that story beyond the headline, pass the spokesperson, to the streets. >> tho

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. but this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. . >> after haiti was struck by an earthquake sympathetic nations offered billions in support. it is home to a makeshift refugee camp and many struggles left for its future. one when the sun sets in tent city, a fear spreads for women refugees with a gentle knock on the doors offers what could be a stronger sense of security. "america tonight"'s correspondent spent a day in the night with haiti's fearless women. >> this is delna. she is determined to protect these women. >> delna is an inspiration for a group called the fearless women. there's a hatian expression many hands lighten the load. in this tent city outside of porta prince these women are using the hand to knock on doors to bring the end to sexual abuse and viol

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. >> four years after haiti's devastating earthquake, victims of the cholera outbreak are suing the united nations. they say they're responsible for spreading the decease which killed 8300 people. >> they're farmers, haitians whose lives have become all the more challenging because of cholera. >> before cholera i was pretty healthy. since cholera my life is changed because now i always have headaches and stomach aches. >> reporter: they and thousands of other haitians are looking to the united nations to pay compensation for the damage inflicted by the disease which came to their country in 2010. 8300 people have died. >> we filed a complaint against the u.n. but we still have never gotten justice. >> scientific evidence point

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. but this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. >> how about this, french president hollande is threaten to sue a newspaper that saids he was having an affair with an french actress. he has never married and lives with his long-time partner. >>> we suffered through the frigid cold but another form of extreme weather tornadoes hit the center of the country. oklahoma became synonymous with disaster. now azte as techno shows us, its is more coming from labs. >> a tornado was captured in time lapse video that went viral. >> we have large debris in the air. >> i think if you live in tornado alley, it needs to be a priority. you need to have a shelter. >> 300 miles from moore in a lab at texas tech university they make storm shelters a reality. >> what we have here is an ai

techknow's shini somara goes straight into the storm. winds of 150 miles per hour.his twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. real reporting that brings you the world. >>> welcome to al jazeera america. i'm morgan bradford live from new york city. here are the stories we are following for you right now. israelis pay their respects to ariel sharon, the former prime minister who died on saturday. and residents of west virginia wait for answers as well as the all clear to turn on their taps again. >>> four years after the devastating earthquake, many haitians struggle to get their lives back in order. plus photographs of women living in lands of conflict and exhibit now touring the united states.

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. but this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. >> al jazeera's investigative unit has tonights exclusive report... >> from coast to coast... >> people selling fresh water for fracking... >> stories that have impact... >> we lost lives... >> that make a difference... >> senator, we were hoping we could ask you some questions about your legal problems... >> that open your world... >> it can be very dangerous... >> i hear gunshots... >> the bullet came right there through the widdow... >> it absolutely is a crisis... >> real reporting... >> this...is what we do... >> america tonight, only on al jazeera america. >> imagine having all your every day activities crippled by fears and activities. more than 40 million adults suffer from anxiety disorders. that's one in four.

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. but this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. >> excessive alcohol consumption contributes to 80,000 deaths a year. but is it the best and only solution to problem drinking? a growing movement suggests a one size fits all approach advocated by aa is not the only solution. i'm joined by gabriel glazer, why women drink and how they can regain control. she also penned a recent editorial, titled why cold turkey seasonality the only route. really provoking stuff in your editorial and in your book. when you look at alcoholics anonymous, been around for 80 years. there isn't that much evidence that it is that successful. >> aa's own membership studies, show that any ten who begin, there are going to be five left. 80% of our rehab facilities use aa as their model. >> why ha

techknow's shini somara goes straight into the storm. winds of 150 miles per hour.his twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. that sometimes they have lost -- at times they have -- they >> every sunday night, join us for exclusive... revealing... and surprising talks... with the most interesting people of our time... >> as an artist you have the right to fail... that's a big right to have >> his work is known across the globe. but little is known about the gorilla artist behind the glasses... we turned the camera on the photographer shaking up the art world. >> 2... 1... that's scary jr... >> talk to al jazeera with jr only on al jazeera america >> al jazeera america is a straight-forward news channel. >> its the most exciting thing to happen to american journalism in decades. >> we believe in digging deep. >> its unbiased, fact-based, in-depth journ

techknow's shini somara goes straight into the storm. winds of 150 miles per hour. this twister is created in the lab. >> i'm at the national wind institute where they can actually recreate a tornado. >> now science and technology take on mother nature. >> who wins? >> it's completely fine. >> techknow. sunday 7:30 eastern on al jazeera america. >> a jazeera america is the only news channel that brings you live news at the top of every hour >> here are the headlines at this hour breaking news... sports... business... weather... live news...every hour, on the hour only on al jazeera america >>> in the northwest storms had a serious impact on one of today's nfl playoff games. high winds knocked outpours for 10s of thousands of customer for washington state so many fans couldn't watch the games because of the power outages. fans endures the wind and rain, gusts reached more than 50 miles an hour. rebecca that's your home down out there. a lot of people were not happen by that storm. >> meteorologist: it was hard to stay out and watch game when the within wag slamming y