Compguy321 (November 30, 1999 at 12:00 am)

Part of my theory is that matter itself is constantly pulling in space (as in the coordinate system). Therefore, the surrounding space is pulled in toward matter. This explains why objects with more mass have more gravity (e.g. the earth vs. the moon). It also explains why things fall (less space between them), and why things orbit.

monazzzzsleeping (November 30, 1999 at 12:00 am)

flowing into matter, hmm, u need to elaborate more.

monazzzzsleeping (November 30, 1999 at 12:00 am)

lol, agree.

Serge808 (November 30, 1999 at 12:00 am)

4d is like when you pour a cup of water and then drink half of it, thats 4d experienced because the time passed indicates that e event of drinking the water.but the 5d expereienced indicates to the observer that water was always there and never went anywhere

Serge808 (November 30, 1999 at 12:00 am)

i think everywhere and everywhen is the tenth dimension

SweetPlague (November 30, 1999 at 12:00 am)

Who needs school when you have youtube? :b

JanPB (November 30, 1999 at 12:00 am)

It's also incorrect to say that Einstein thought of spacetime as a "fabric". His initial 1905 paper expresses relativity in terms of time-less 3D space and with time defined as a property of each infinitesimal piece of matter. 3 years later Minkowski noted that mathematically this can also be expressed in terms of a geometry on _the set of all events in the universe_, everywhere and everywhen. This set of events has 4 degrees of freedom in a natural way and is called "spacetime".

JanPB (November 30, 1999 at 12:00 am)

For some inexplicable reason those pop-sci program _always_ explain gravity incorrectly by showing the curved _space_ where the key is the curvature of _spacetime_. It makes zero sense to explain gravity by _space_ curvature (the annoying "rubber sheet") because it amounts to _explaining gravity by gravity_ which is nonsensical. It's harder to show it correctly as it involves one more dimension.

beatityatube (November 30, 1999 at 12:00 am)

Just recently I was watching the BBC Drama Einstein and Eddington. Pretty excellent piece of drama, if you haven't saw it already. It's still on BBC Iplayer right now if you can see it there, if not I'm sure it will appear on the internet at some point (if it hasn't already), if you like this you'll like that a lot. ;-)

ThreeCharlieKilo (November 30, 1999 at 12:00 am)

This is interesting. The source of gravity has been tossed around in the history of science. During the time of Newton, it was an internal force, during the time of Einstein, it is an external force (from spacetime), and now, if the graviton is discovered, it will once again be thought of as an internal force.