what 4 dimentions do we have controle over?

Question

i was reading up on time travel and this guy said we have 4 dimensions we have macroscopic control over i was just wondering which ones they were

Answer 1

Please do not confuse scifi with science. Time travel is strictly scifi; there is no such thing. Even WAG's lke string theory fail to come up with a feasible scenario for time travel. Worm holes, for example, are not feasible even though they might be possible. That follows because of the energy and control problems that are beyond science to resolve. So travel into the past is not feasible.

Travel into the future is feasible, but only in a very limited way. By invoking time dilation, we can send particles into the future by speeding them up to near light speed. That slows down their time, which relativistically speeds up our time from the POV of the particle. By the way, this is true theory in that time travel into the future has been validated by experiments.

Of course, XYZ, the other three dimensions, are controlled regularly on our planet. Those are simply the spatial dimensions we invoke daily when we build things, travel, and whatever in 3D.

Answer 2

The first three dimensions are length width and height, you can plot them on XYZ coordinate system. The fourth dimension is time. You can graphically represent 4 dimensions by making XYZ plots of different times, t0, t1, t2, etc.

I am not sure what the author meant by "macroscopic control over" because we do not have much control over time. We can watch it pass, we can take "snaps shots" at different time intervals but we can not go back in time or go forward in time any faster than we are going.

I hope this helps.

Answer 3

height, length, depth, and time