Re: Hot air rising and automobile thermometers

[Ludwik Kowalski <KowalskiL@MAIL.MONTCLAIR.EDU>]

I was thinking about much more than what you describe.
Several pressure gauges to locate the isobaric lines inside
the "rotating habitat". And little flags showing the wind
directions. Use local heaters, pomps, etc., if necessary.
Just pretend that everything possible is available. You
control the rmp, you control the T distribution, you
control the P distribution, you control the shape of the
habitat mounted on the disk, etc. etc.

Herbert H Gottlieb wrote:

> > Suppose you have access to a machine shop and other kind
> > of technical support. And that money is not a problem. You
> > want to build an AAPT apparatus competition item which
> > clearly demonstrates that due to Coriolis forces wind
> > velocities can be parallel, not perpendicular to the "isobaric
> > lines". You start with the large rotating disk idea. Then what?
> >
> > Ludwik Kowalski
>
> Hold a straight edge over the rotating disk with one end
> of the straight edge touching the center of rotation and the
> other end extending to the outer edge of the disk .
>
> Making sure that the straight edge does not move, use it as a
> guide to draw a radial line on the surface of the rotating disk.
> If the line is drawn by moving a felt-tip pen at a constant
> speed, the line on the disk will be curved.
>
> If the disk is rotating very fast and the pen is moved very slowly
> the line drawn will be very close to a line that is parallel to
> the "isobarics" that "exist" along the radii of the disk.
>
> Herb Gottlieb from New York City
> (Where our Earth Science Teachers draw a chalk line on a rotating
> globe of the earth from the North Pole to the equator to  demonstrate
> the Coriolis effect and Ferrel's Laws of planetary wind deflections)