this post was submitted on 08 Jan 2024
17 points (94.7% liked)

Physics

1340 readers
2 users here now

founded 2 years ago
MODERATORS
[email protected]
17
A method to straighten curved space-time (phys.org)
submitted 10 months ago by [email protected] to c/[email protected]
6 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 1 points 10 months ago (5 children)

To describe phenomena on the scale of atoms, we use the second great theory: quantum mechanics, which differs from general relativity in basically everything. It uses flat space-time and a completely different mathematical apparatus

It's weird to me, that the common method of attempting to describe a four dimensional thing is to immediately reduce the three dimensional thing to two dimensions...

The word "curved" is problematic for the concept of space-time because it invokes one or two dimensional thought. Space-time is a four dimensional model.

The best description of the effect of gravity on space-time on my opinion is actually a joke... Gravity sucks :)

[–] [email protected] 8 points 10 months ago (3 children)

Curvature is well defined for manifolds with any number of dimensions. "Flat" in this context means "zero curvature", not "two dimensional".

load more comments (1 replies)
load more comments (2 replies)