Date: Sat Feb 17 13:04:15 2007
Author: Cliff Bettis
Subject: Re: To start your weekend with a laugh ...
I think what I found is a later version: it doesn't show any sign of glass
having been used as the recording medium and the rails are closer together.
The tuning fork ("C" 128 Hz) is driven by an electromagnet.
----- Original Message -----
From: "Thomas B. Greenslade, Jr."
Sent: Friday, February 16, 2007 9:32 PM
Subject: Re: [tap-l] To start your weekend with a laugh ...
> To see an example of the free fall apparatus that Cliff mentions, go to
> http://physics.kenyon.edu/EarlyApparatus/Mechanics/Free_Fall/Free_Fall.html .
> This dates from the 1920s -- not very old at all...
> Cliff -- you break my heart when you disassemble this piece of
> Best Regards,
> Tom Greenslade
> firstname.lastname@example.org wrote:
>> I have been doing serious scavenging in the attic. There is some
>> wonderful old stuff up there. I am grabbing on to whatever looks good and
>> isn't museum stuff. I just finished building a "new" pile driver, parts
>> of which came from two Young's modulus apparatus and an old free fall
>> experiment (really old: it used a tuning fork and a stylus to leave
>> timing marks on a wax paper streamer).
>> My guess is most of the stuff will be tossed.
>> Quoting "Wallin, Stephen R" :
>>> Don't lose those dandy historical artifacts in the attic. Was UNL
>>> physics graduate school west of the Missip.?
>>> From: email@example.com [mailto:firstname.lastname@example.org]
>>> Behalf Of Cliff Bettis
>>> Sent: Friday, February 16, 2007 1:58 PM
>>> To: email@example.com
>>> Subject: [tap-l] To start your weekend with a laugh ...
>>> I just got this note:
>>> Dear faculty,
>>> The Society of Physics Student has been put in charge of taking
>>> inventory for the physics department. The information gathered will be
>>> used to help prepare moving into the new building. In the next couple
>>> weeks members of SPS will be contacting each one of you individually
>>> sit down and catalog your specific equipment. This process should take
>>> no more than an hour of your time, and it would be nice if this could
>>> all be done in a timely manner. Thank you for your cooperation.