Re: Moving Through Space Is Absolute


<macromitch@xxxxxxxxxxxxxxx> wrote in message
news:1113941183.212426.79010@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> No I didn't. I mentioned the earth's orbit.
>

Perception is the issue here and is why the real details of relativity are
hard for people to grasp. Saying who is moving is very, very dependant on
the frame of reference of the person talking and is why for a goodly portion
of our written history people were convinced the sun moved around the Earth.

If you stand on the surface of the Earth and look up, you can *see* the Sun
move around the Earth. It is easy to use this evidence to imply that is the
case. Likewise, someone in the cockpit of the spacecraft will appear to see
the Earth coming towards them. This is what relativity means.

Relativity is not a catch all for justifying nonsensical movements. To the
person on the Earth the space craft moves towards them, to the people on the
space craft the Earth moves towards them. You can take an "objective" frame
of reference and decide which one is correct but it doesn't change what the
people will think at the time.


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