From 3.5 billion Reddit comments

1 point

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15th Mar 2022

Hey this is an awesome comment, dunno why you got downvoted. Glad to offer some inspiration 🤓

Cool video. If you're a layman physics enthusiast (apologies if a bad assumption) and enjoy consuming qualitative content like this, and liked my comment, you will love this book:

General Relativity: From A to B by Robert Geroch

It gives a masterfully written description of GR in a purely qualitative and intuitive way. There are almost no equations at all, but about 100 figures. Everything is described geometrically. You might even know more about relativity than most cosmologists once you're done :p

It won't give you the ability to do anything formal, but it will open your eyes to the big picture

1 point

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3rd Oct 2019

The analogy holds up well enough for things like gravitational lensing. But yea, just gotta be careful. It's meant to help you understand the highest-level qualitative concept, not to be predictive.

And, for the record /u/benisbrother, there *are* GR resources available for the layman which are as accurate as they can possibly be. General Relativity: From A to B by Robert Geroch is one of them that uses almost no math, but details the entire theory geometrically in 2d and 3d spacetime (where you sacrifice spatial dimensions rather then the temporal one, and work in projections). It relies very heavily on the geometry of projected lightcones to build intuition, which works remarkably well. I literally mean visual geometry; drawing lines and curves. The writing is fantastic, the figures are fantastic... anyone interested in this thread should give it a go.

1 point

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9th Jul 2017

I've heard very good things about General Relativity from A to B by Robert Geroch, but haven't read it myself.

2 points

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20th Jul 2020

If you are interested in Relativity and Spacetime Geometry I highly recommend the following :

https://www.amazon.com/General-Relativity-B-Robert-Geroch/dp/0226288641

https://www.amazon.com/Philosophy-Physics-Princeton-Foundations-Contemporary/dp/0691165718

This is a general introduction to Spacetime and GR. It may be that you are more advanced than this but I have found that some of my colleagues still do not have a grasp of what a vector space or manifold (3d 4d r^n etc) really is conceptually These two books when taken together are excellent. The philosophy text accompanies the GR text and should be read concurrently.

Geometric Topology is what I like to think about and it is related to your interest in spacetime geometry. It is generally a graduate area of study but if you are at about that level I suggest this book:

https://www.amazon.com/Introduction-Geometric-Topology-Bruno-Martelli/dp/1539580237

It has some pretty intuitive examples and the problems in the text are useful and interesting.

1 point

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15th Sep 2017

i recommend the following books, all of which give excellent treatment to spacetime and spacetime diagrams:

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