Lec 33 | 8.01 Physics I: Classical Mechanics, Fall 1999

[willbirful]

some great inforamtion here thanks

[jessyjessy4]

very interesting thanks

[staranjela]

some really good stuff here

[MeGreLsk1]

WTF is this? :D Fuck STUDY

[Kricardose]

I am very happy to see the vidoe Kinetic Gas Theory - Ideal Gas Law - Isothermal Atmosphere - Phase Diagrams - Phase Transitions after you give this

[bebeheuy]

I Love The Video Gas Theory - Ideal Gas Law - Isothermal Atmosphere - Phase Diagrams - Phase Transitions It Can Increase My Knowledge

[Mjhond]

Steady I Really Like This Video Kinetic Gas Theory Ideal Gas Law Isothermal Atmosphere Phase Diagrams Phase Transitions

[dinotles]

Why has only 50 000 seen this? people waste their oppurtunities, this is great

[spaceface4]

n only 14 and i dont know why but i know 2/3 of these things already, he is so smart

[IperSuperDuper]

hay mama. me va a tomar 20 anos entender todo esto

[ChippyChibnutz]

Personally I dont care if he is right or wrong on any issue, he loves what he is doing, just look at him :) He makes learning worth seeing the other angle at least, and then you can find the truth to the answer yourself :)

[aufbakhandleitung]

@ChippyChibnutz Dude.... It's very important that what he is saying is, in fact, correct. That he is also having fun is a bonus. Not the other way around!

[MrRMillr]

Moles= molecules dugh takes the fuzzy wuzzy out of it. Mass yea I get it now.

Thank You

[TmTournament2]

He made a mistake on the last part. The Radious decreases by 75%, not 60%.

If volume decreases 1/4 (75%), all the other side decreases 75%. Since pi and 4/3 are constants, radious decreases by 75%.

[kamikrazi123]

I expected higher level stuff at a school like MIT...

[TinMan1326]

who really watched this all the way through

[lelyn1234]

Walter Lewin you make the phase diagram of water appear for us as it is: something to be held sacred.

[softballxluva4]

I actually looked this up to find an answer to my homework question XD

[softballxluva4]

I'm learning this and I'm in 8th Grade

[fcdog555]

@softballxluva4 Yeah but you have to realize that the homework assignments and problems given in college chem/phys are single problems to do... and even sometimes weeks in the case of calc.

pv=nrt is a simple equation; but using it the way I have is not so simple.

[samuel91222]

A few words for those people who commented: "o, i learned this when I was grade 9 or junior high..." ; " thats what people learn in MIT?!" I want to tell you people, this stuff is worth to learn and review, at any level of your study, simple concepts can be analyzed very differently with different approaches, which is helpful to achieve a higher level of insight. And dont be so proud of urself for knowing this stuff in early age. Go challenge urself with something else, if u think u r so smart

[nocciola123456789]

@samuel91222

all these people just haven´t studied physics, otherwise they would know that the first and second semester, BESIDE the other maths, and advanced courses in EVERY university of the world the high school stuff is rewiewd for getting a common basis, and just because in the university NOTHING is left unexplained or undemonstrated. In maths, our first day, the prof has demonstraded that 1/a times a equals 1.... just let the idiots speak, and enjoy science!! go Walter, u rock!! :))))

[anonymous345]

people that are admitted to MIT learn this (basic) stuff?

[portentousjames]

im learning this and im in gr 11 .

[Kimble275]

This is really nice. People who cannot afford classes such as these. The intellect that *does* insightfully teach what it is we ponder.

Thank you.

[flyingpatte]

The balloon gets extremely small because the air inside condense to liquid at that low temperature and one atmosphere.

[flyingpatte]

The pressure inside the tennisballs are higher than the atmospheric pressure and therefore the pressure inside the tube is also higher. This is because the balls get damaged if they are tensed all the time. The tube is designed in such a way that the pressure rises a litle bit when you seal it and that's why the balls get damaged if you leave the tube open for to long.

[kristiankroflin]

At 0:59 he begins to speak of th fact that he also means atoms with the word molecules. In fact there´s no need for a whole bunch of new words for every scale (and in fact, in the old way of doing chemistry they weren´t able to see when they change scales (that´s how they got to those long names). I myself only use the word object instead of atom or molecule or whatever comes into your mind. I even use it instead of the word "motion".

[electron2015]

what happen to the 10 minute limit?

[pen1510ve]

this guy is special. oh snap. 2 month old comment oo well im hitting send!

[tbone280]

darkenddreams dont take my comment like that. im looking at the class online, and im not into the things hes teaching. if i was in to classical mechanics this would be the total opposite of boring. plus im 16 and idk wtf hes talking about so chill.

[chrislongden4]

I learned the Ideal Gas Law (pV = nRT) in A-Level Chemistry.

[nit323]

ya sure we did it in grade 9....but hes really cool.....don show attitude please....

[Rebdominator]

I didnt knew that america had schools

[over18jazz]

lol agreed

[lilsorms202]

I like this guy; He's got a sense of humor which is great for a teacher. I loved the "Common can!" Good stuff.

Also what's the answer to the question at the end? Are the tennis balls kept in a vacuum or are they under higher pressure? And why are they not usable after 2 days?

[HardstyleeAndrew]

@lilsorms202 Im sure youve figured it out by now but Ill provide the answer just in case anybody was curious. The balls are kept under higher pressure and this is because the pressure on the inside of the tennis ball is(I think)2 atm. The pressure on the inside of the can is at 2 atm as well.When the can is opened, the air SLOWLY leaks out of the slightly permeable rubber of the tennis ball and then the ball will be unusable because it will lose its bounce(Brief because running out of characters

[XxShawnRGxX]

Classical mechanics? I'm not a genius or anything, but the subject matter in this lecture looks suspiciously like atmospheric chemistry.

[mremile72]

many principles of chemistry rely on the concepts of physics :)

[Rusty4ND]

@mremile72 And all their principles rely on mathematics :)

[mremile72]

@Rusty4ND true :)

[dinotles]

@mremile72 and many principles of physics comes from chemistry... The atom for example

[buyukcesura]

@dinotles you are so clever u should be the son of Albert Einstein

[AIRHEAD77777]

this guy seems almost smarter then me

[nit323]

neva you mind....he is n HAS to be waaaaaay smarter than u!HES JUS WAYYY too awesome 4 some1 giv off comments like u did......hes probably the best physics teachers int the history of teachers...

[tbone280]

this must be the most boring class ever .... but educational

[mrgraffrocks]

MIT teachers are the coolest!!!!