Nutshell mysteries of time,space,and matter explained.....

Ummm, the point of mass is at the TIP of that gravity curve... not at the base. They are drawing thousands of those curves like there are an infinite number of masses, not an infinite number of curves representing a single mass.

A YouTube user-produced and submitted video that seems to be an effort to literalize (that a word?) and extrapolate into 3 dimensions a view of space-time that is often used to demonstrate the concept of space-time and gravity's interaction with it (the ol' bowling ball on a trampoline). I'm not quite sure what he was trying to show (and I watched his other, similar video on the same topic), if anything. The ultimate conclusion he seems to arrive at is that space-time warps around planets in a spherical shape (????) Or... something. I guess.

Deathcow, I think he was just trying to visualize space-time in 3 dimensions, rather than the trampoline model we've all seen. I don't think he meant it as a serious scientific explanation. More thinking out loud (but in a video). I read his other posts and he didn't exactly come across as a hard-core sci.physics.relativity type. I'm not either, but I dig this type of stuff. This video just doesn't have any information, or even anything interesting or scientifically correct, imho.

Try this one: http://www.youtube.com/watch?v=qV9nBz3Mlog

Or this one: http://www.youtube.com/watch?v=SFUG6itL_0M

Hi Fletch, I think you are right about his intentions. The trampoline model has the mass at the bottom of the well, not flush with the top of the well as this video portrays. So this is really bizarre and flawed if this is spherical rotation of the trampoline model. It would have been just as interesting also to see the results of spinning the line around with the correct center of rotation. If this wasn't flawed enough the final "Looks like the Earth!" is ridiculous.

Lol. Yeah, it is. His result doesn't exactly flow from his "evidence", does it? Here's his first vid: http://www.youtube.com/watch?v=mvvuDENfa9A

He would get the same results with a cantaloupe and an arrow-thru-the-head prop.

I'd like to think it's a little more complicated than that.

i'm not convinced that this really demonstrates anything

I think it would have been clearer if he showed how a 2-dimensional representation of earth made the bump in the first line shown... Ie: its not the bumps making earth, its earth making the bumps.