@JohnRennie like distortion of fabric of space, time is also represented as one of those fabrics ?, or it can be represented graphically/mathematically only ?
I guess you're thinking that we can directly perceive space e.g. we can look along a line from us out into the distance and back, but we can't do this with time.
It's obvious that to humans time is different from space because we can freely move in space while we cannot freely move in time.
We are stuck with moving along the time axis at one second per second.
But the question is whether there is really a difference between time and space, or whether humans only perceive the difference because of the way our brains operate.
And I don't think this is a question that can be answered.
@KavinIshwaran Let me make an analogy: suppose you and I are standing on the equator 1m apart both facing north, and we both head off north at some speed v.
There is no force between us, but as we travel north we gradually move closer together and we would eventually meet at the north pole. OK so far?
So it looks as if there is some mysterious force pulling us together. Obviously there isn't really. We are moving together because we are moving on a curved surface. But if we didn't know the surface was curved we would think the force existed. Yes?
Now this is exactly what happens in GR. Suppose you and the Earth start off a few thousand km apart and both of you are stationary. Obviously you are going to fall towards the Earth.
@KavinIshwaran Yes. Even though you and the Earth are stationary you are both moving in time. In fact your speed along the time dimension is the speed of light!
And the curvature along the time dimension is what causes you to move together.
I mean. I'm willing to pay is what I'm saying. But I'll accept free help LOL.
My problem is that I'm trying to make a flight sim type game but I wasn't ready for how different centripetal motion in 3D space is different from in 2D space.
Even though I never went past basic physics I understand circular motion and always thought circular motion questions were the easiest, but can't apply that knowledge to how an airplane moves.
So I have a flight stick and keyboard for input meaning I have direct control over linear and angular velocity, and know the delta time.
How do I use that info to find the radius I need to rotate an object around some point to make the motion circular?
Problem Solving Strategies
Problem Solving Strategies