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Make the formation and fly safely. to relay changes for the timing. if one gets started late we adjust for that and then the formation at the track at the right time. jon: stuart you were flying the p-letter 41 of the aircraft of world war ii that is particularly special as i understand it. >> it is. it's an honor where we honor those who have come before us and it is really special because the air force sponsored us this year so it was an honor. >> the sharks teeth are part of the logo of the flying tigers flying into the pacific. >> correct.

Produce new teeth on its own. if sharks can do it why can't we some species shed up to fifty sets of teeth in the course of their lives they grow in rows and if an outer tooth falls out another one moves forward to take its place all the shark's teeth look the same they rip and tear but don't chew or grind. while ours are all different and complex and construction our molders canines and incisors all perform slightly different functions when we eat so it might be hard to replicate their complexity and for rioting. but nowadays scientists have stem cells to work with. the technology has allowed...

Nothing like taking a big bite of your favorite food and the wonder of nature makes it all possible t.v. this week a viewer from liberia sent in a great question about these vital struct is. michael stone from monrovia wants to know. can science help us grow new teeth. humans have two sets of first the milk. they fall out and a replaced by a permanent set and that's all we get the trouble is both sets can suffer damage. sugar and tax them where interior with increasing age also take a toll once they're gone false teeth are an option but dentures aren't very effective or pleasant away or so sci...

Humans have two sets of teeth first the milk. they fall out and are replaced by a permanent set and that's all we get the trouble is both sets can suffer damage. sugar attacks them where interior with increasing age also take a toll once they're gone false teeth are an option but dentures aren't very effective or pleasant away or so scientists want to find ways to coax the body to produce new teeth on its own. if sharks can do it why can't we some species shed up to fifty sets of teeth in the course of their lives they grow in rows and if an outer tooth falls out another one moves forward to t...

Marijuana or involved with marijuana which in reality is accepted by 55% of the american public and the same as alcohol. >> as you know, attorney general eric holder announced a proposal this week that's going to reduce sentences for drug trafficking chargers by about 20% thp that would include people convicted of possessing up to a kilo of heroin and five kilos of cocaine. those are not insignificant amounts. do you agree with that proposal? >> i agree with the proposal totally because the fact is when you take somebody out of the chain of selling drugs, they're like sharks teeth. you remove ...