by crawler » Sun Mar 31, 2024 10:04 pm
Roshi wrote: ↑Sun Mar 31, 2024 9:47 pm
Gravitational waves are told to be ripples in space time:
https://en.wikipedia.org/wiki/Gravitational_wave
Einstein demonstrated that gravitational waves result from his general theory of relativity as ripples in spacetime.[5][6]
So, if space-time can have ripples, (without breaking things like objects that exist in space-time, or making those objects time-travel) what else can it do?
Space time is a "medium" and in this medium there are these waves. No medium (water/air/space-time - no waves). Can this medium move, rotate, do other stuff? Because if it can't then it's obvously an universal reference frame, that relativity says it does not exist.
And, how can you have a wave, that moves across the Universe, and exerts a force on all objects, without losing any energy?
Why doesn't someone invent a space time powered engine, instead of pushing things the old fashion way and wasting energy.
We all agree that there exists a gravity field. And that a gravity field can vary. And the variance can take a form, a gravity wave, lots of waves, ripples.
But there is no such thing as spacetime. No such thing as the (LIGO) gravitational wave. Which propagates at the speed of light.
Real GWs are Newtonian (not Einsteinian), & propagate at at least 20 billion c.
Anyhow, Newtonian GWs are of no use to us. No need to look for them. They are of no interest, & they are of no help. They karnt support the existence of (the collision of) black holes etc.
[quote=Roshi post_id=10174 time=1711921665 user_id=29922]
Gravitational waves are told to be ripples in space time:
https://en.wikipedia.org/wiki/Gravitational_wave
[quote]Einstein demonstrated that gravitational waves result from his general theory of relativity as ripples in spacetime.[5][6][/quote]
So, if space-time can have ripples, (without breaking things like objects that exist in space-time, or making those objects time-travel) what else can it do?
Space time is a "medium" and in this medium there are these waves. No medium (water/air/space-time - no waves). Can this medium move, rotate, do other stuff? Because if it can't then it's obvously an universal reference frame, that relativity says it does not exist.
And, how can you have a wave, that moves across the Universe, and exerts a force on all objects, without losing any energy?
Why doesn't someone invent a space time powered engine, instead of pushing things the old fashion way and wasting energy.
[/quote]We all agree that there exists a gravity field. And that a gravity field can vary. And the variance can take a form, a gravity wave, lots of waves, ripples.
But there is no such thing as spacetime. No such thing as the (LIGO) gravitational wave. Which propagates at the speed of light.
Real GWs are Newtonian (not Einsteinian), & propagate at at least 20 billion c.
Anyhow, Newtonian GWs are of no use to us. No need to look for them. They are of no interest, & they are of no help. They karnt support the existence of (the collision of) black holes etc.