Einstein's General Theory of Relativity | Lecture 9

[adelle0001]

nice one! very informative

[agapitoflores001]

Einstein is a real genius, isn't he? I wanna try being like him.. haha

[calebp9503]

his mathematical notes are kind of lazy, and unorganized, but he still gets his point across. i would prefer to see the theory presented with more structured mathematical notes

[newtonswig]

@TSP105 For reasons that refuse to make themselves clear, I plotted the views against lecture number on a graph. It actually pretty closely follows an inverse square law. Spooky.....

[fibonacci112358s]

@newtonswig

HAHA!!!!

Indeed... the learning curve is getting a bit steep here. I'm still trying to get my head around gravity waves...

[LeMegasandwich]

@mixtape24 So how does: "logical laws" """govern""" the universe, probably nothing else in our empirical experience. Not a language created by humans.

sound to you:)?

[TSP105]

From around a quarter of a million views for lecture 1, ee're down to just under 13,000 for this.

[estaere]

@LeMegasandwich It's rather methodological issue. [What is Law of Nature? by D. Armstrong] if you want 2 be confused ;)

[estaere]

@LeMegasandwich are they govern or are governed by the nature? I think this is the issue.

[LeMegasandwich]

@estaere I would call them the same thing. Nature is how the universe works. How the universe works are with these equations. :)

[fermista]

@LeMegasandwich I personally think the most profound conclusion about physics is that because nature can be described in terms of mathematical equations, nature behaves logically.

[csmcmillion]

@fermista It's the other way around.

[estaere]

Awesomeness of mathematical equations is that they're independent of fashon, political point of view or even religion you follow.

Einstein had right. His formulas are immortal.

The only difficult is to identify them.

Correct me if I'm wrong...

[LeMegasandwich]

@estaere It's strange how mathematical equations govern the universe yet so many people argue about it!

[elliottc2001]

he's great this has been awesome

[ShootBigBird]

I notice the number of posters is thinning out as we progress...LOL

[foketesz]

AND the number of viewers...

[LeMegasandwich]

I graphed it. It drops by 4/5ths after the first video and this video is just 6.7% of original viewers!

[ogirv101]

I noticed that on the playlist the lecture order is wrong, just wanted to point that out.

[Lambda45]

Leonard and Stanford, you did a great service to physics by putting these lectures online. Please upload the whole course as soon as you can! I have been checking almost everyday for lecture 10 and I know many others are eagerly waiting as well. Thanks again for a great job. Leonard's clarity of thinking and of explaining somewhat difficult concepts is outstanding!

[foketesz]

well said

[matu88jiujitsu]

Excelent, Leonard you make it so easy.. Lecture 10 coming up?

[jamesdowjames]

It would be better if he spent more time explaining general relativity instead of hours manipulating tensor indices.

[Wizard4592]

God I love these lectures. Finally learned how the Riemann tensor is related to parallel transport, and why there is -1/2gR in the Einstein tensor. I couldn't figure this out by staring for hours in MTH.

[Arlesterc]

Yes, when will lecture 10 be available?

[dc100GHz]

lecture 10?

[pbsucksdonkeycock]

man don't watch this guys stoned........you wont understand a fooking thing!

[fmas1978]

this is unacceptable, the guy says different things than he puts down on the board, says it doesn't matter, talking with full mouth is excused but not the other things! when you learn you need not be confused by teacher's mistakes. he won't get lost 'cause it's all obvious to him, you will

[mohsenvand66]

Bingooooooooooooo !

Marvelous , Do you want a piece of me ??

[FarFromEquilibrium]

This so fucking ruulez!! After the second time watching and taking copioius notes on these classes, Im finally going to understand Gerneral Relativity :D No more stupid thought experiments \m/ XD \m/

Leonard, you are awesome!

[flameman973]

nice :)