Re: Light Mill?

[Bob Sciamanda <trebor@VELOCITY.NET>]

Expose the Crookes radiometer to one second of microwave oven radiation to
get the same results as below plus a brilliant air-spectrum discharge (no
harm done).  I think I described this in some detail on an earlier
incarnation of this thread.

Bob

Bob Sciamanda (W3NLV)
Physics, Edinboro Univ of PA (em)
trebor@velocity.net
http://www.velocity.net/~trebor

----- Original Message -----
From: Spagna Jr., George <gspagna@RMC.EDU>
To: <PHYS-L@lists.nau.edu>
Sent: Tuesday, September 14, 1999 10:48 AM
Subject: Re: Light Mill?


> Another "experiment" with the Crooke's radiometer (I think that's the
> correct name for the beast) is to place it near a (dare I say it?) heat
> source like a fireplace or open wood stove.  It will spin normally for a
> while, then stop.  Remove it from the vicinity of the fire, and it will
> begin spinning in the opposite direction.  Which supports the notion
that
> its behavior has to do with the gas inside the bulb interacting
differently
> with the light and dark sides of the vanes, rather than "radiation
> pressure."
>
> ************************************************************************
> "Vocatus atque non vocatus - Deus aderit."
>                                      -  Karl Jung
> ***********************************************************************
> George Spagna
>  Department of Physics
>  Randolph-Macon College
>  P.O. Box 5005
>  Ashland, VA 23005-5505
> phone: (804) 752-7344     FAX (804) 752-4724
> e-mail: gspagna@rmc.edu
> http://www.rmc.edu/~gspagna/