> Origyptian Wrote:
> > Oops, sorry, I was referring to the use of the
> > disk back when it was originally created.
> > Considering the possibility that the disc
> > originally was put to work as a rotating
> > instrument, what powered it?
> That's another question..
> If it's able to produce standing waves from a
> central position then I don't think the designers
> would have had much of a problem with powering
> Or the possibility that the disk was fixed and
> operating in a rotating medium.
> Baby steps...
> > I'd still love to see the dispersion pattern of
> > water shot out sideways as the disk rotates
> > horizontally while water descended onto it from
> > above.
> Looking at Tri Lobe's video I think there is an
> outward from centre dispersion pattern, however
> this may be the result of a rotationally induced,
> outward from centre spiralling wave front. As
> opposed to physical water movement or thrust, as
> would be the case with an impeller or propeller.
> The body of water in the video seems to be
> radially static and 'boiling'.
> It'd be interesting to see what would happen if a
> constant disk speed can be achieved with the disk
> fully submerged, thus negating any direct water
> surface disturbance by the disc.
> Also the wave effect at different or multiples of
> rotational speed. say 25 RPM, 50 RPM, 100 RPM, 200
> Or tune the speed for maximum wave and work from
The "boiling" effect might simply be due to the rapid rotation speed. A slower speed might better reveal the evolution of the standing waves.
I predict that the dispersion pattern generated when water is dropped onto the rotating disk is that the water will shoot out of the spaces between the flaps, first at an upward angle and then parabolically downward. The water will be accelerated by the 2-axis curves on the inside of each flap which amplifies the centrifugal current by adding the water from the 3 flaps to the 3 clear segments without the flaps.
No idea how such a symmetrical object can be naturally powered within a bath. It would need a drive axel which, itself, might be powered by water current from an external source.
How can any of us ever know, when all we can do is think?