By projecting a toroidal vortex into a head wind that has the same velocity
as the toroid you can effectively make the ring motionless in space.
Bill.
At 14:30 19/04/98 GMT, you wrote:
>On Sat, 18 Apr 1998 19:31:01 -1000, Bill Perry <wperry3092@worldnet.att.net>
>wrote:
>
><snip>
>
>>Is it possible to create a non-travelling vortex for more static and
>>accurate instrumentation on them as far as velocity and speed?
>
>Isn't that a contradiction in terms? I thought a vortex was supposed to
>be a dynamic entity, not a static one.
>
>Cheers all,
>Alan
>
>
>