Why Does Space Have Three Dimensions?

Transcript

Why does space have 3 dimensions? Why  not 2? Or 4? Or 7? It’s because physics wouldn’t properly work. There  are several reasons for this. The first problem is that solar systems wouldn’t  be stable in more than 3 dimensions. You can see this as follows, and I have to warn you that  now there will be some maths. I swear it won’t hurt. Unless you’r... Read More