Why is time considered the 4th dimension? it doesn't make

>>9099985
What else is at right angles to the other three dimensions?

>>9099988
are you saying time is?

>>9099985
because you look at relativity with time as the 4th dimension

that is to say 3 spatial dimensions with time being your 4th

if you know about inner products then the minkowski metric is what you use for a lot of inner products in physics

>>9099993
Just considering alternatives. Slice a sphere, you get a circle. Slice a circle, you get a point. What would you have to slice to get a sphere?

>>9099985
/sci/ is gay.

>>9100001
almost

shout out to
>>9100000

>>9099998
https://en.wikipedia.org/wiki/Hypersphere

Jesus buddy.

>>9099998
>Slice a circle, you get a point.
?

>>9100039
I would think you would get a line after slicing a circle, using his example. Not sure where he got point from

internet is the 4th dimention

>>9100049
You can always get a point slicing a circle. Or a sphere.

You just need to slice it along the very edge (or edge analogous)

>>9099985
Because we exist within it and can't model it from the outside.

>>9100049
They aren't talking about Euclidean space, that's all.

>>9099985
It's just a nice way of representing time, thinking of motion as a 4D transformation. I don't really get how it would be a different kind of unit?

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>be a completely different type of unit
you can measure length in time units, just multiply by the speed of light c.

>>9099998
My dick

>>9101674
/thread
op read any decent textbook on special relativity it will explain this concept

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>>9099985
There's no reason you can't use meters to the 4th power as a way of measuring time. Just because people usually don't doesn't mean time can't be thought of in that way.
Put a bunch of points next to each other in one dimension and you get a line, put a bunch of lines next to each other in another dimension and you get a rectangle, put a bunch of rectangles next to each other in another dimension and you get a box, and put a bunch of boxes together in yet another dimension and you get a box history.