How do we know we live in 3 dimensions?
5612
How to prove that we are living in a 3+1D world?
39948
Given a set of curved geodesics in 2D space, is there a way to determine the geometrical shape of said space?
40076
Correct Intuition? Standard Deviation and distance in $n$ dimensional space.
74024
Higher dimensional equivalent of complex numbers
26769
Why does string theory require 9 dimensions of space and one dimension of time?
59312
Is everything in the physical world composite?
158540
Coordinates vs. Geometries: How can we know two coordinate systems describe the same geometry?
19497
Analogue of spherical coordinates in $n$-dimensions
40106
Gravity force strength in 1D, 2D, 3D and higher spatial dimensions
95681
If the universe is 3D, how is space-time like a "fabric"?
70332
Is there a third dimension of numbers?
54193
Can light exist in $2+1$ or $1+1$ spacetime dimensions?
65230
Expressing points in fractional dimensions?
10699
Why are There No "Triernions" (3-dimensional analogue of complex numbers / quaternions)?
54874
What problems are easier to solve in a higher dimension, i.e. 3D vs 2D?
124631
Why are we not able to visualize Dimensions beyond 3 (or maximum 4 including time)?
40098
How many faces of a solid can one "see"?