Re: The Rotating Disk as a TARDIS


<e_erpelding@xxxxxxxxx> wrote in message
news:1156911438.267995.186940@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| The TARDIS from the Doctor Who television series is known for being
| larger on the inside that it is on the outside. Indeed TARDIS is an
| acronym for "Time And Relative Dimension(s) In Space".
|
| The TARDIS could be dismissed as simply an imaginative creation of
| science fiction, however, the idea of something being larger with
| respect to one reference frame than with respect to another does have
| real physical meaning.
|
| Consider the old example of the rotating disk, the circumference has a
| certain length L with respect to a non-rotating inertial frame, but
| with respect to a reference frame fixed to the rotating disk, the
| circumference measure L' is greater than L.
|
| If one was lining up ball bearings next to each other along the
| complete circumference of the disk, more ball bearings would be
| required to "cover" the rotating disk circumference than the
| circumference of the stationary disk. Hence the rotating disk is
| "bigger" than the stationary one.
|
| The point of this posting is merely to point out that the idea of the
| TARDIS being larger inside than outside was quite clever and wasn't far
| fetched at all.

It is far fetched.
http://www.androcles01.pwp.blueyonder.co.uk/Rocket/Rocket.htm
Androcles





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