Re: [Phys-l] evanescent microwaves?

[Daniel L Macisaac <danmacisaac@me.com>]

For salt blocks near you:
http://tsc.tractorsupply.com/search?zone=16&env=&w=salt+block
and stores
http://www.tractorsupply.com/StoreByStateView?storeId=10551&catalogId=10001

Dan M

On Feb 23, 2012, at 12:45 PM, brian whatcott wrote:

> Building on Jeff's interesting input: 50 lb animal licks are to be had 
> in any country district
> They come in 3 general varieties:
> A salt block (white)
> A mineralized salt block (brown)
> A protein loaded mineral block (brown)
>
> These are listed in ascending price starting around $6 or $7 in these parts.
>
> Brian W
>
>
> On 2/23/2012 10:55 AM, Jeffrey Schnick wrote:
> > 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-512166.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>
>
> _______________________________________________
> Forum for Physics Educators
> Phys-l@carnot.physics.buffalo.edu
> https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l