How can we be certain our world has only three spatial dimensions?
45932
Does Coulomb's Law, with Gauss's Law, imply the existence of only three spatial dimensions?
105477
How to find the number of dimensions that an array has?
48495
Is it possible to prove the independence of the parallel postulate without non-euclidean geometry?
157997
How to test any 2 line segments (3D) are collinear or not?
50841
Detecting the dimension where a player is
113772
How to measure the curvature of the space-time?
127185
How to test whether a set of four points can form a parallelogram
15971
Are units of angle really dimensionless?
26769
Why does string theory require 9 dimensions of space and one dimension of time?
87839
If I squeeze something really hard, will it ever become two-dimensional?
40098
How many faces of a solid can one "see"?
42046
How to tell if a set of vectors spans a space?
142503
There are no compact minimal surfaces
44431
The dimension of a subspace is less than dimension of the whole space.
21783
How to prove wave nature of large object?
151659
Why are there 4 Dimensions and 4 Fundamental Forces?
123621
What justifies dimensional analysis?