Could Flatland Be CURVED?!

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VIDEO ANNOTATIONS/CARDS

The Ultimate Guide to Relativity:

What the HECK is a Tensor?!?

How Elastic is the Fabric of the Universe?
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RELATED YOUTUBE VIDEOS

PBS Space Time on Space Curvature:

Flatland by Carl Sagan:

Flatland by "What The Bleep?"
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Earth by GOES-16:

[Uncle-Mike]

I haven't heard anyone recommend Edwin Abbott's "Flatland" in a while. So I'm recommending it. It's a book. It's flat.

[anti-troll-software]

Everyone: Flatten the Curve!
ScienceAsylum: Could Flatland Be CURVED?!

[crouchingtigerhiddenadam]

Paralax is very noticable after too many beers. Great video Nick, I'll be sharing this with the family.

[GraveUypo]

i love how you poke them without mentioning them a single time.

[tom_something]

So, on a sphere, two paths that seem like parallel lines to the surface-dwellers will converge. In our universe, if you have two objects with mass floating in space with zero relative velocity between them, those objects' path through 4D spacetime would be projected as two parallel lines. Their paths will converge, which Newton would explain with the force of gravity. But those who see a little further by standing on his shoulders say that gravity manipulates the relationship of the three spacial and one temporal dimension, effectively curving the universe. Is the curvature that we describe as gravity the same as the intrinsic curvature of the universe itself?

[skmaurya]

So we are basically THREE dimensional beings living in a FOUR dimensional world where our eyes makes TWO dimensional images.
And the only way to transcend is MATHEMATICS.

[TheRealGuywithoutaMustache]

I learn so many things from your channel, please keep these uploads up

[gardenhead]

That was a great explanation of Rayman curvature

[kylebowles]

This was the longer video you were talking about on the live stream! Next level "flatland" animations better than others I've seen; unique that you touched on the Plato's cave element when they get back to flatland haha!

[powergo]

I just like to say that as a physics student I appreciate the way you simplify things so that everyone understands, really shows a solid and deep grasp of physics which I'd like to have

[manuelcheta]

I've seen another explanation: triangles on the surface of a sphere can have 90 degrees in each of the three angles.

[grimwatcher]

You know YouTube algorithm is doing something right when you discover a new science channel and it talks about flatland.
You got a new subscriber sir!

[shempincognito]

While I'm not sure about the gimmicks (amusing clones and stuff aren't my thing, but to each their own...), the PEDAGOGICAL skill and DEPTH of this channel are very impressive! Even if I've watched countless videos on a topic, and even taken classes or read about it, I often find this channel adding a point or clarifying something important. And in doing so succeeding where other educational creators fail. One should never judge a book by its cover (or a channel by its gimmicks); This channel, along with PBS Spacetime and a few others, are among the best YouTube has to offer!

Update: Ok, I did laugh about some gags in this video.

[AxionSmurf]

Love this guy. He's the good kind of mad scientist.

[dronillon]

Love your content. I find these topics hard, but I'm happily chewing through it. Thanks for cuting it into easily manageable bits.

[jimivey]

I read Abbott’s “Flatland” 50 years ago. He would have enjoyed your presentation, as I did. Nicely done!

[jasoncollins]

I was so hoping you were going to do a “rainman curvature “ joke!! Great work sir, you make science funny and interesting. I absolutely love your work. 😊

[averagemilffan]

Nice video. U deserve so many more subscribers. Btw can u do a video on optical tweezers?

[nokian]

I get excited every time I stumble upon a video of yours I haven't seen yet. Keep up the good work. We're always thirsty for more knowledge.

[MatheMagiX]

Zach Star had a video on that today too, 1 hour earlier. Well done to both of you. I repeat my idea for an episode: please explain (liquid) paint on molecular level - colors, mixing colors, how come green mixed with yellow is always the same and what happens to the surface of a paint after mixing so that the bounced light is always the same, not yellow, nor green etc.