The author of this presentation describes his project as….
Quote:
“My present purpose is to show you that there is nothing at all mysterious in the four dimensions of a spacetime. To do this, I will drop the time part completely. I will just consider a four dimensional space; that is, a space just like our three dimensional space, but with one extra dimension. What would it be like?…”
This author seems to know what he is talking about. In my opinion his effort is is thorough. If you are interested in this area of science I think that you will enjoy following the writer’s line of thinking.
The link is here