U
undidly
Guest
SpeedFreek":3mbn071d said:Hi guys!
The ether was found to be surplus to requirements and so was discarded, in much the same way as the cosmological constant. The ether has not exactly been "proven not to exist", but as of yet, there has been no need for it and no way to detect it if we did need it! (Yes, this is me!)
The Michelson-Morley experiment (and subsequent tests for the constancy of the speed of light, etc) preclude the need for a "luminifeous" ether in order to explain the motions of elementary particles, and relativity precludes it as a dynamical theory, but, as has been alluded to above, the mathematical concept of a "hidden" ether remains.
But, what use is it?
Well, that all depends on what we discover in the future, doesn't it?
""But, what use is it?""
A space drive?.In your space ship throw a heavy object toward the front where you have placed a trampoline to bounce it back.
When you throw the object it has a mass.Change the aether to INCREASE the mass before it hits the trampoline.
As the object returns REDUCE the mass .Catch the object and repeat.
Each bounce back will accelerate the ship a little,each catch will decelerate the ship but by a smaller amount.
I am not suggesting it will be an energy free space drive.
When the mass is increased will the speed of the object drop to conserve momentum or will energy be sucked from
the aether change device to maintain the speed of the now larger mass?.
It may take much energy each time the aether is changed but such a drive does not need mass to be ejected to make thrust.
Without the idea that mass can be changed no such drive can even be thought about.
What is that NEWTON?. Equal and opposite?.
On the large scale that is correct.Spaceship moves one way,universe moves the other way (not much).