Re: [Phys-l] evanescent microwaves?

["Jeffrey Schnick" <JSchnick@Anselm.Edu>]

We did this experiment as an undergraduate modern physics laboratory
exercise using a salt block in the early 80s at Oregon State.  It is my
understanding that the apparatus was originally created as part of a
master's thesis project (from the appearance of the apparatus--many
years earlier).  My recollection is that the block was in the shape of a
cube of edge length about 1 foot, cut along a plane containing two
opposite edges of the cube, thus creating two 45 degree prisms (that is
the cross section of each was a a right isosceles triangle).  Given that
OSU has a huge agricultural program, I am assuming the cube was a
livestock salt block. Looks like slightly smaller blocks are inexpensive
and easy to obtain.  See
 
http://farm-and-pet.hardwarestore.com/110-609-salt-minerals/salt-block-5
12166.aspx .
and perhaps a 50 lb brine block would do the trick (search on salt block
at amazon.com).


> -----Original Message-----
> From: phys-l-bounces@carnot.physics.buffalo.edu [mailto:phys-l-
> bounces@carnot.physics.buffalo.edu] On Behalf Of brian whatcott
> Sent: Thursday, February 23, 2012 8:16 AM
> To: phys-l@carnot.physics.buffalo.edu
> Subject: Re: [Phys-l] evanescent microwaves?
>
>
> Try again <sigh>
>
> http://www.physics.usyd.edu.au/teach_res/projects/proj6/evanescent.pdf
>
>
> On 2/22/2012 9:39 PM, brian whatcott wrote:
> > On 2/22/2012 2:31 PM, Bill Wehrbein wrote:
> > > Have any of you performed the experiment (e.g., Albiol et al, Amer.
> J. Phys, Feb 1993) exploring evanescent waves produced by the typical
> introductory lab microwave set ? Any tips or suggestions for updating
> and improvement? Thanks!
> > > Bill Wehrbein, Nebraska Wesleyan University
> > Thanks to uSydney for making the paper easily accessible.
> >
> > <www.physics.usyd.edu.au/teach_res/projects/proj6/*evanescent*.pdf>
> >
> >
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