putty pulling a plane in the mohave desert. this was really an unusual -- >> but you were there.>> it was not rigged. it's real. >> that's really cool. some of the commercials aren't always what they appear. >> the ftc. if they can't do it in the parking lot, it can't be done. >> janice leberman, thanks very much. >> up next, he just turned four and knows more than most people do at 40. wait until you find out what his iq is. first, these messages. [ male announcer ] this duracell truck has some very special power. ♪ [ toys chattering ] it's filled with new duracell quantum batteries. [ toy meows ] [ dog whines ] [ toy meows ] these red batteries are so powerful... that this year they'll power all the hasbro toys donated to toys for tots. want to help power some smiles? duracell. trusted everywhere. it's all your favorites and a whole lot more, like a 20-piece chicken mcnuggets -- just 5 bucks. more choices than ever before. that's the dollar menu and more. ♪ she should be braiding her hair. not losing it. he should be battling video villains. not cancer cells. they should be liv

nationally, you have to pull a 747 in the middle of the mohave desert. >> high production, informationt the future. the reality is we need tos plain stops and simple stops to believe it. >> reporter: it's a 40,000-dollar gamble for a 30-second commercial. >> if you can't do it in the parking lot of the federal trade commission you don't do the demo. >> reporter: is it just entertainment or do people real believe it and buy it? >> it has entertainment value but the entertainment value has to be real and the product has to really work and that translates into sales for us. >> reporter: is this demo real? >> what we did we hooked up the hook to the tow bar. two plates of the putty. what we do now is lift this up to look -- we want to see the line of the chain, is it straight? >> come on! >> come on, baby. can you move it? >> reporter: no. >> this happens to be a product that has strength. one of the things we want to do to tell people if it's strong enough to pull 300-ton pound 737 you can use it in your home. >> reporter: just eight seconds of this video, but will it fly with consumers?

they were in the mo vaf -- mohave cease earth. he moved to google. he decided he would teach a course on advanced computing. and he and the vice president of research for google announced they were going to hold the future course at stanford and make it available online. they had 400 students in the classroom. they had 151,000 sign up. drove the stanford administration crazy, was how do you regulate it? and how do you know they are getting a stanford-quality course. why aren't they paying tuition? [laughter] they had -- i don't know the exact number. i think it was 43,000 completed the course. on the final exam, the highest-rated student in the course, in the stanford class, was number 441. that is 440 people not in the class got a higher score on the final than the best student at stanford in the class. i saw him after the experiment was over and said it was humbling. he said he always thought he was a great lecturer and always loved his lectures. he suddenly discovered if you took the online course, which was a problem-based course, you did better