in our universe, for a fourth dimension to be achieved, it would have to be drawn at a non-right angle to the others, therefore making it not another dimension at all, just a line occupying 2 dimensions. so what i am saying is, what is achieved by "making up" more dimensions when they do not exist physically? There are 3 spacial dimensions that we exist in, and they are all at 90 o to each other. i try to accept this fourth mathematical dimension and move on, but then realise, "oh dear, if you can just draw another line, then you can have infinite dimensions". I am sure you all know what a tesseract looks like, so i wont explain it, but i would argue that it does not occupy 4 dimensions! the 4th set of lines are diagonal: that is not at 90 o to the others. this is where my logical, physics orientated brain, stops and says "hang on, surely, this 4th dimension thing is all void if i can't be physically realised". now once again, according to modern mathematics, you can draw a fourth line, which connects 2 cubes, and this is supposed to be in 4 dimensions: a tesseract. so far, this can all be realised in a physcial situation, as you can take for example 12 pieces of uncooked spaghetti and put them into a cube. you can then draw a third line which obviously cannot be at 90 o to both of these, but represents it. so far, this can all be realised in a physcial situat. you can then draw another line at 90 o to this this occupies 2 dimensions: a square. you can then draw another line at 90 o to this this occupies 2 dimensions: a square. According to mathematics you can draw a line. I'm sorry, i didn't know which specific subcatergory to put this in, there was no geometry section.Īccording to mathematics you can draw a line.
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