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#50 - Explanation: This is a 3 dimensional representation o…  [+] (6 replies) 11/21/2012 on What a Tesseract (4D Cube)... -2
#70 - neurofuzzy (11/21/2012) [-]
no. no. no. no. no. Take a point in 3D space. Pick a point. Any point. call it (a,b,c,d). Divide by d to get (a/d,b/d,c/d). Drop the third axis. (a/d,b/d). Draw that point on a graph. You just did a 4D projection, congrats!

The cool transformation comes from a rotation, but that requires a lil' bit of linear algebra to explain.

This is animated over time, so to talk about time as a dimension, this would be a 5D object.
#316 - AltiarCow (12/09/2012) [-]
I actually said that is a 3D representation (technically 2D since it's a picture) of a 4D object.

Also, no. you are overthinking the '5D object' aspect. if this picture were actually a 4D object, then yes, because it animation of what would be a 4D object. Unfortunately it's a 3D (yes it's a picture, so it's technically 2D, but we all know what I mean) animation, therefore a representation/simulation of a 4D object.

As I said below, I am notoriously bad at explaining things, so that is apparent here.
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#59 - aetherpig (11/21/2012) [-]
The fourth dimension isn't time, it's just another dimension of space. Time and space work on different planes, one is linear the other is not. Which is why we use the term "Time-space" for the awkward part between the two. As for it's movement, it has to be moving because it's the only way to comprehend a fourth dimension without "Trinoculars" which is a device that splits our vision into a third plane in which we can see four dimensional objects. Without this impossible device, all you can do is imagine it as a moving object along a linear plane. It's actually one of the more simple parts of the Theory of Quantum Entanglement, which has to do with how the dimensions are tied on a multi-infinite level
#315 - AltiarCow (12/09/2012) [-]
As I said, The 4th dimension is not i fact time. It is generally regarded by us as time. While it is a spatial dimension, we regard it as time because that is how we see it as 3-dimensional beings.

I'm also notoriously bad at explaining things, so that doesn't help
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#54 - thecomkiller (11/21/2012) [-]
actually, a tessaract is in 4 spacial dimensions, what that animation is is what it's shadow would look like if it were rotating. you can see the concept by making a wire-frame cube and rotating it and looking at the shadow it creates. the cube makes a 2 dimensional shadow of several squares going into and out of eachother and connected at the corners, a tessaract makes a 3 dimensional shadow of several cubes going into and out of eachother.

so really, this .gif is a 2-dimensional representation of a 3-dimensional shadow of a 4-dimensional object slowly rotating.
#51 - blocked (11/21/2012) [-]
That's why they call it dope.
#19 - NO BRAKES ON THE MATH TRAIN  [+] (2 replies) 09/23/2012 on Math, Stahp! +8
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#273 - tholomewsense (09/24/2012) [-]
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#22 - improbablyyourdad (09/23/2012) [-]
Where would you even start...