so now you think you're better than isaac newton? oh. no wonder women don't like you.? he said he was fine. wolowitz: sometimes people say things they don't mean.

isaac newton in the late 1600st came out with a new theory of motion and a theory of gravity. and this worked everywhere we ever measured it. the moon going around earth, earth going around the sun. piter it wasn't just a solar phenomenon. in fajt, the planet neptune was discovered because the planet you areanus was not following newton's laws. people said we found the limits of newton's laws. they don't apply that far away. before you throw it out, maybe there is another planet out there whose gravity we have not folded into our he kaitions it is a very hard mathematical problem. >> you are responding to the problem of the other thing. >> exactly. it's a very hard mathematical problem to invert. one is i have an on swrek and let's calculate its gravity. the other one is there is a gravity here, where must the object be. that is a very hard mathematical problem. brilliant people worked on it, they made a prediction. look here tonight, that announcement got to berlin, an observatory there, there is an astronomer looked in that spot, discovered neptune, newton's laws of motion a

isaac newton to mozart to einstein. let me give you a few examples of how hard madison worked in the run-up to the convention in philadelphia and the convention at self. first of all, knowing it was coming up he began an intense constitutions.nd he had been interested in this idea since he was an instrument has but with books jefferson should come from this, he began areally intense study and relative staying with the madison's -- i am smiling because virginia is one big ray. he stepped back from this constant socializing and started working very hard. a relative who came to see him wrote in his diary that he came and eatate sparingly and would work until dinner. while everybody was riding horses, he was in his room working. now he knew that washington's presence at the convention could make all of the difference. washington was so admired and so loved by the american people at this time that if he were there the convention would have a greater chance of success than if he was not. he wrote letter after letter to the ge

we know isaac newton. we know about lucy, the famous fossil. but why do we know about those instead of other thing it is that did just as much for the ?usk community? we're able to forward scientific ideas all of those sorts of things so that's really what sort of underscored my interest in writing a book like seven skeletons. which brings us to the point what is seven skell to skeletons about it? it is about seven -- seven fossils that are famous, significant in the history of the study of human evolution. and i was interested in picking these particular seven, some might be well known to people like lucy -- neanderthals all heard about them. others might not be quite as familiar like the pilt down hoax and sidibo but i pick these seven because i felt they were different kind of famous seven different kinds of famous and i thought that would be an interesting way to explore the history of science in the history of human evolution. so the book is written as seven profiles. almost as if i take each of the fossils and turn it into a biography. so

. >> isn't this to take this culture and to try to -- reminds me of isaac newton if i see farther becauseon the shoulders of jintsz. pay respect to it. comes down to business. >> more people with this food more everybody is going to be interested in this kind of food. it's a burrito. calm down. >> i take issue with this whole thing though. if i pile three pounds of food with 18 ingredients as big as your plate. that's as american as it gets. nothing cultural about that. that's us, right? >> greg: exactly. i wish i could enjoy a burrito. >> i don't give a damn what color you are. if the food is good, i will come back. >> we will end there. coming up [applause] >> greg: tom cruise is dead. making top gun 2. confirmed it. it's happening. sequels of all sequels is next. wise man, i'm nervous about things i can't control... affecting my good credit score. i see you've planted an uncertainty tree. chop that thing down. the clarity you seek... lies within the creditwise app from capital one. creditwise helps you protect your credit. and it's completely free for everyone. it's free for everyone?

. >> isn't this to take this culture and to try to -- reminds me of isaac newton if i see farther becausen the shoulders of jintsz. pay respect to it. comes down to business. >> more people with this food more everybody is going to be interested in this kind of food. it's a burrito. calm down. >> i take issue with this whole thing though. if i pile three pounds of food with 18 ingredients as big as your plate. that's as american as it gets. nothing cultural about that. that's us, right? >> greg: exactly. i wish i could enjoy a burrito. >> i don't give a damn what color you are. if the food is good, i will come back. >> we will end there. coming up [applause] >> greg: tom cruise is dead. making top gun 2. confirmed it. it's happening. sequels of all sequels is next. phone with our allstate agent, and i know that we have accident forgiveness. so the incredibly minor accident that i had tonight- four weeks without the car. okay, yup. good night. with accident forgiveness your rates won't go up just because of an accident. switching to allstate is worth it. >> greg: will it be the sequel with

. >> isn't this to take this culture and to try to -- reminds me of isaac newton if i see farther becauseulders of jintsz. pay respect to it. comes down to business. >> more people with this food more everybody is going to be interested in this kind of food. it's a burrito. calm down. >> i take issue with this whole thing though. if i pile three pounds of food with 18 ingredients as big as your plate. that's as american as it gets. nothing cultural about that. that's us, right? >> greg: exactly. i wish i could enjoy a burrito. >> i don't give a damn what color you are. if the food is good, i will come back. >> we will end there. coming up [applause] >> greg: tom cruise is dead. making top gun 2. confirmed it. it's happening. sequels of all sequels is next. >> greg: will it be the sequel with no equal. this week tom cruise confirmed that top gun which would have been the greatest volleyball movie ever if for not all those planes will finally get a second installment but top gun 2 underwhelm? so many sequels too. do you know deliverance 2 the reunion? [laughter] me neither. also titanic 2 g

. >> isn't this to take this culture and to try to -- reminds me of isaac newton if i see farther becausentsz. pay respect to it. comes down to business. >> more people with this food more everybody is going to be interested in this kind of food. it's a burrito. calm down. >> i take issue with this whole thing though. if i pile three pounds of food with 18 ingredients as big as your plate. that's as american as it gets. nothing cultural about that. that's us, right? >> greg: exactly. i wish i could enjoy a burrito. >> i don't give a damn what color you are. if the food is good, i will come back. >> we will end there. coming up [applause] >> greg: tom cruise is dead. making top gun 2. confirmed it. it's happening. sequels of all sequels is next. it's the phillips' lady! anyone ever have occasional constipation,diarrhea, gas or bloating? she does. she does. help defend against those digestive issues. take phillips' colon health probiotic caps daily with three types of good bacteria. 400 likes? wow! try phillips' colon health. what does life look like during your period? with tampax pearl. y

we have a very deep awareness and sensitivity of the operations of nature, just the way isaac newton. charlie: what is the difference between dark matter and dark energy? neil: unfortunately their names are similar. dark matter is what we call the gravity in the universe that has no known origin. we should collect our gravity, that is literally what it is. we see things moving in space, you can calculate how much gravity would be enabling that. then you look at what is there, it is not enough dust of their to account for the gravity that is making this motion. how much stuff is there, about 15%. 15% of what is necessary. it is the largest mystery, possibly in the science. it is from the 1930's. charlie: in all of science? -- dare i go that far? i think i can go that far. how many branches of science that have a mystery for 80 years? i don't know if any. but certainly the longest unsolved mystery in astrophysics. it remains a mystery. we don't know what it is. if you are a betting person, and you bet on physics -- [laughter] if you are a betting man on physics, people are suspecting i