But how does that make the universe flat?The plane between any 2 lines is flat.
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But how does that make the universe flat?The plane between any 2 lines is flat.
But how does that make the universe flat?
So it's flat but flat in all dimensions, not just in one? Basically, it is flat because you can always draw flat lines through it? In all directions?You are still thinking in 2 dimensions. You need to drop that idea. Its flat (to at least 6 decimal places) in any direction you measure.
Take a large stiff card, cut it into a triangle. Lift one end of the card leaving the one point on the ground. You can move it any direction in 3 dimensions by leaving the one point fixed on the ground.
So it's flat but flat in all dimensions, not just in one? Basically, it is flat because you can always draw flat lines through it? In all directions?
But that's obviousI think you've got it
But that's obvious
Why is the universe being flat but flat in all possible directions such a big deal?
Is that a new idea? Did people ever think differently?
I don't understand the difference to a triangle that exists in space and a triangle that's only drawn a piece of paper
So space can be mis-shaped and bent by gravity?It appears axiomatic (so obvious that it hardly needs to be said) that three points in space, connected by three straight lines, would have all the geometric properties of a triangle drawn on a piece of paper. But that would not be the case if space were not flat, but curved; which, just to confuse matters, it is, due to the gravity of massive objects.
So space can be mis-shaped and bent by gravity?
How can that be so? I thought space was literally nothing?
What does "field" mean in this context?
Would even space in the middle of nowhere that is not next to any magnets or anything with gravity contain fields?
Oh no!You are getting into quantum theory here its a very heavy sibject.
So is it impossible for there to be empty space?Space is not empty, it's full of dust, gas, molecules, atoms, and quantum particles
What does "field" mean in this context?
Would even space in the middle of nowhere that is not next to any magnets or anything with gravity contain fields?
Didn't some of the early computer games (e.g. Pacman) work like that - I seem to remember going off screen on one side and appearing again on the other side.I have a question that's been bugging me for years
I don't know how to explain this, it's simple to understand but hard to put in words.....
Imagine a chess board
Imagine you move a piece all the way to the edge of the opposite side, so that it is right at the top of the board
Now imagine you move it forward one space
And it reappears on the opposite edge of the board, right on the bottom of the board, to where it begun at the end of the game, on the same line
Now, imagine you have another piece and you move it to a square that is on the right edge of the board
You then move it one space to the right and it reappears on the left edge of the board, on the same row as it was before you last moved it
As though it has gone all around to the other side and as though the board is in some bizarre way round
What do you call this?
If the chess board works like that, does that mean that it is in effect never ending, as it is circular and has no edges?
Is that a type of infinity, or is it finite? It is at least endless and circular?
Might the universe work like that?
I want to learn about these thingsThere may be regions in our universe beyond the influence of any gravitational or electro-magnetic fields. Or there may not - gravity is a weak force, but it's range is immense.
How Quantum Field Theory would apply in such conditions (if such conditions exist) I confess I don't know.
Video games are what made me wonder about all this!Didn't some of the early computer games (e.g. Pacman) work like that - I seem to remember going off screen on one side and appearing again on the other side.
Oh no!
So is it impossible for there to be empty space?
Is there anywhere in the universe where it is truly empty?
gravity is a weak force, but it's range is immense.
Video games are what made me wonder about all this!
I used to very strongly believe thatThen there is your answer. We exist in a Simulation.