en.wikipedia.org/wiki/Four-dimensional_space

In mathematics, four-dimensional space ("4D") is a geometric space with four
dimensions. It typically is more specifically four-dimensional Euclidean space, ...

www.quora.com/How-can-one-visualize-4-dimensional-space

The concept of hyperspace is Amazing! Even "supernatural" phenomenon could
possibly be ... How can one divide a 3-dimensional space in 4 parts?

www.pitt.edu/~jdnorton/teaching/HPS_0410/chapters_2017_Jan_1/four_dimensions/index.html

The problem is not the time part of a four dimensional spacetime; it is the four.
One can readily imagine the three axes of a three dimensional space: up-down, ...

www.ask.com/youtube?q=4 Dimension of Space&v=rG6aIVGquOg

May 31, 2013 ... Attempting to view a 4th dimensional object with our 3rd dimensional eyes.

sprott.physics.wisc.edu/Pickover../fourth.html

Have you ever considered how a four-dimensional being would appear to you if it
... in the fourth dimension would have a cross-section in our space that looked ...

www.pbs.org/wgbh/nova/blogs/physics/2014/04/how-many-dimensions-does-the-universe-really-have/

Apr 3, 2014 ... However, once she derives the equation for how their light moves through space,
she finds that it is best expressed in four dimensions. Then ...

plus.maths.org/content/richard-elwes

Jan 12, 2011 ... The world we live in is strictly 3-dimensional: up/down, left/right, and forwards/
backwards, these are the only ways to move. For years, scientists ...

futurism.com/new-perspectives-imagining-a-4d-world/

Oct 24, 2013 ... Regardless of your scientific background (or lack thereof), a 4th dimension of
space is very a difficult concept to grasp (note: we're not talking ...

www.sciencenews.org/article/seeing-four-dimensions

Aug 22, 2008 ... TETRAHEDRON, 4-D The four-dimensional version of a tetrahedron ... can
perceive four-dimensional shapes in our three-dimensional space.

www.astronomycafe.net/cosm/dimens.html

In a world with four spatial dimensions, for example, we can construct only six
regular solids. One of them - the "hypercube" - is a solid figure in 4-D space ...