Einstein's General Theory of Relativity | Lecture 2

In this lecture, Professor Leonard Susskind of the Stanford University Physic's Department discusses dark energy, the tendency of it to tear atoms apart, and Gauss's Law.

Einstein's Theory (PHY 27) discusses the different applications of Einstein's Theory of Relativity in particle physics, including Newtonian, Galilean, and Guassian laws; particle attraction and repulsion; gravitational fields; and dark energy.

Physics Department at Stanford University:
http://www.physics.stanford.edu/

Stanford University:
http://www.stanford.edu/

Stanford University Channel on YouTube:
http://www.youtube.com/stanford

Category:

Education

Tags:

• science
• physics
• theory
• of
• relativity
• force
• gravity
• dark
• energy
• time
• lambda
• particle
• repulsion
• spring
• constant
• attraction
• big
• rip
• density
• universe
• vacuum
• test
• mass
• vector
• component
• del
• derivative
• gravitational
• field
• accelerati

[mynyddwrglas]

Heartfelt thanks to Professor Susskind and Stanford for making these beautiful ideas available to me. I am following all of the series.

[TheSaintPain]

@Ykoahi He who asks a question is ignorant for a minute; he who does not ask a question remains ignorant forever.

[chris69calderon]

I dont get it

[RonaldRichardson3]

Think the theorization of time is due to space constantly expanding?

[Jipzorowns]

@dbob1048 nerdy? why nerdy? it's called; interested in the world in which you live! And you can follow this lectures to understand the world around you. I study psychology, I'm 18 and I hate it. I love physics but I made the wrong choice by dropping physics in highschool (I live in the Netherlands so I can drop subjects, not sure how that works in America).

[dbob1048]

im an engineer but watching this stuff kinda makes me wish i chose physics, as nerdy as it sounds this stuff is fucken cool! thankyou lenard susskind

[stenniswood]

@MrAlutchman76 - well the first thing that comes to mind is 'time'. It's the other variable which is affected by acceleration. So it would seem that matter is a converter of space into time. Whatever matter is, it somehow eats space and turns it into time. And it must take a lot of space to insert a little bit of time. Time slows down (dilation) in gravitational fields and space disappears. Reminds me of 'yeast' which converts sugar into alcohol.

[MrAlutchman76]

@stenniswood if space itself is converging into point masses then where is it going to? Another universe? As raw material for the expanding edges of our universe?

[stenniswood]

Slow paced, but gives a very solid foundation for the topic. Very thorough. Seems like accelerating reference frame comes from the non-zero divergence of the field. Otherwise what sense does it make to say it's accelerating , but nothing is really moving or gaining velocity. Is space accelerating into the mass? How can we have acceleration without velocity change? Maybe future lecture will address this...

[55Icarus55]

Damn, it is reaaaally slow paced Oo"

Is it supposed to be adressed to Bachelors students ?