4-D shapes

[JimBob]

What is the first dimension? A single line going to infinity in both directions, how do you split it in half? A single point.

What is the second dimension? A plane streaching to infinity in all directions. How do you split it in half? A single line (1D object).

What is the third dimension? A cube streaching to infinity in all directions.
How do you split it in half? A plane (2D object).

So what is the fourth dimension? Something that could be split in half by an infinitley large three dimensional object.

[Glaucus]

If you think about out, there is nothing 1D in the world... everything has at least 2 dimensions if you keep magnifying it.

[ajaxfetish]

Well, theoretically point masses should exist in fewer than 2 dimensions. But they're not really observable at present, if they exist.

Ajax

[Beirut]

Anybody here ever read Flatland?

Brilliant little book!

[Divinus Arma]

4-d shapes. I was expecting something completely different.

[Kanaric]

I remember watching something that said the 4th dimention is time, lol. Probably some bad sci-fi though and not anything real.

[BDC]

Stretched in the 4th spatial dimension.

[Duke Malcolm]

Bah, all this talk of 3 and 4 dimensions is codstwaddle. Everyone knows there is only 2.

[The_Doctor]

I remember watching something that said the 4th dimention is time, lol. Probably some bad sci-fi though and not anything real.

Time is the 4th dimension.

[Scurvy]

time doesnt exist :)

[Silver Rusher]

Time is the 4th dimension.

Err... not really. The other three dimensions are measurements of space, so why would the 4th one be time? No credible argument can back up the claim, but hey, you aren't even providing any kind of an argument at all anyway!

...is this the frontroom? Oh...

[Bar Kochba]

i think the bottle is more entertaining then the 4D

[The_Doctor]

http://en.wikipedia.org/wiki/Dimension
http://en.wikipedia.org/wiki/Space-time

[Papewaio]

Err... not really. The other three dimensions are measurements of space, so why would the 4th one be time? No credible argument can back up the claim, but hey, you aren't even providing any kind of an argument at all anyway!

Einstein, Special Relativity circa 1905.

Einstein (The Meaning Of Relativity): "Two events taking place at the points A and B of a system K are simultaneous if they appear at the same instant when observed from the middle point, M, of the interval AB. Time is then defined as the ensemble of the indications of similar clocks, at rest relatively to K, which register the same simultaneously."

It is a new theory, younger then evolution, so I can understand that you may want to reject this paradigm. It however is essentially modern physics, so if you want to reject it you will also have to reject General Relativity which is the current best explanation of gravity.

[Moros]

Time is the 4th dimension.

Time is a property of a universe just like space is one. Both properties have their dimensions. In theory both can have an unlimited number of dimensions, time for example has as far as I know ulimited dimensions. "time doesn't exist." The times, one single time that is the same for anywho anywhere doesn't exist. Time is relative remember that experiment with clocks in a moving train? (or how was it again?) Anyway the amount of space dimensions in our univers is unkown at the moment. Scientist already claim to have discover some with experiments (Zwitserland?) and not so long ago a book and it's site is claimng there'll be 10 dimensions (more based on philosophy then science?) and claims that time is the 11th dimension.

[The_Doctor]

10 dimensions (more based on philosophy then science?) and claims that time is the 11th dimension.

I think that is string thoery.