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Chris Martin asked the Naked Scientists: Many astronomers any physicists talk about objects in the Universe travelling at nearly the speed of light, for example the gas jets leaving a quasar, the matter in an accretion disk circulating around a black hole or the matter travelling away from a supernova, but my question is what is this speed relative to? Is there a standard "stationary" object in the universe which all these examples relate to? Otherwise these statements are meaningless.ThanksChris MartinMark, Somerset.What do you think?
Mazur and Chapline, and, I think others, suggested that the Universe might be spinning on an axis. Is that idea still current in scientific circles? If it were the case it would create a place in the Universe that would be special and stationary.
For example, without looking outside the earth at all, we can tell we're rotating due to the Coriolis effect.
Quote from: JP For example, without looking outside the earth at all, we can tell we're rotating due to the Coriolis effect.True, but can we observe any such effect arising from the rotation of our galaxy? Without looking outside the galaxy, could we tell it was rotating?
If the Universe were rotating, could we tell; without being able to look outside the Universe? Unless, of course, we were able to see the axis of rotation, which, obviously, we are not.