Angular velocity absolute?

[eastmond@yahoo.com]

Hi,

The main corollary of relativity is that one cannot perform any
measurement that will tell you your absolute linear velocity.

I was wondering whether this is true for one's angular velocity. One
can set a gyroscope running and measure the change in one's direction
in space with respect to the gyroscope's axis. One can compare this
change with the change in proper time measured by one's clock to give
one's absolute angular velocity.

John

[Henning Makholm]

Scripsit eastmond@yahoo.com

> One can set a gyroscope running and measure the change in one's
> direction in space with respect to the gyroscope's axis. One can
> compare this change with the change in proper time measured by one's
> clock to give one's absolute angular velocity.

Yes.

--
Henning Makholm "The spirits will have to knit like
banshees, but with enough spirits it *can* be done!"