Can YOU imagine the Tenth Dimension? Stupid people need not click here

Hmm interesting flash. Though I'm with Dee on this, I want more math involved! Crude 2D examples can only show so much after the 4th dimension.
Still, this flash is a great way to introduce a non-physics person to the idea of 10 dimensions.

Originally Posted by Cellius

Please explain what tachyons are. I've never heard of them.

Tachyons is a made up subatomic particle that always moves faster than the speed of light.
*Doesn't anyone watch Star Trek anymore?*

Jam it back in, in the dark.

Originally Posted by FallDragon

I have a question about this. The one visual it uses during the description of a 2d man shows the cross-section of a human going by, as if a 2d man will see each layer of a person as if that person is cut in half from head to toe an infinite number of times. My question is why wouldn't the 2d man simply see a human as if I would close one of my eyes to look at it? If you're looking at at a human in 2d, wouldn't the skin still be what is being observed? What causes the 2d eye to look past the outside surface of the object and see it in cross sections?

I'm not a exactly a expert in this area, but I'll try to explain.
The reason the "flatlander" could potentially see a 3D being (the human) as cross-sections is because the flatlander cannot perceive depth in any sense.
In our world, according to the flash. We can see this depth or cross-sections of us as one being. The flatlander can only see the length and width of that being. Even if that is technically peering through the 3D human's insides. You could go as far and say we're passing through 2D worlds all the time =p.
Again this works the same for us when we try to imagine the 4th dimension. We can only see a cross-section of what we're experiencing as err time.

There's nowhere I can't reach.