Date: Fri Aug 7 14:12:02 2009

Author: J. Terrence Klopcic

Subject: Re: Variation on a demo I saw at Ann Arbor

Post:

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As computers and web-connections get faster and more memory-loaded,
might we somewhat relax the proscription against attachments? I really
appreciated getting Cliff's picture; but I probably would not have
realized its importance from the dialog and therefore not sought out the
PIRA posting.

Just a thought.

Terry

* J. Terrence Klopcic, PhD
Director of Laboratories
Departments of Physics and Mathematics
Kenyon College*



cbettis@unlserve.unl.edu wrote:
> Sorry Folks,
>
> The attachment was just supposed to go to Dale. I must have screwed up
> the address when I sent the message. The picture is now posted on the
> PIRA web site.
>
>
> Cliff
>
> Quoting cbettis@unlserve.unl.edu:
>
>> Dale,
>>
>> Here it is.
>>
>> Cliff
>>
>> Quoting "Dale E. Stille" :
>>
>>> Cliff,
>>>
>>> I'll take one.
>>>
>>> Dale
>>>
>>> Adam Beehler wrote:
>>>> Yes, please send it. Thank you.
>>>> Adam Beehler
>>>>
>>>>
>>>> Sam Sampere wrote:
>>>>> Please send it...
>>>>>
>>>>> Sam
>>>>>
>>>>> -----Original Message-----
>>>>> From: tap-l-owner@lists.ncsu.edu
>>>>> [mailto:tap-l-owner@lists.ncsu.edu] On Behalf Of
>>>>> cbettis@unlserve.unl.edu
>>>>> Sent: Friday, August 07, 2009 9:26 AM
>>>>> To: tap-l
>>>>> Subject: [tap-l] Variation on a demo I saw at Ann Arbor
>>>>>
>>>>> I think it was Mark that had set up in the back room of the
>>>>> lecture demonstration area at the University of Michigan this
>>>>> demonstration: Two air core solenoids with their axes vertical
>>>>> were connected together with wires. Two magnets were suspended
>>>>> on springs above them so that the magnets could oscillate up
>>>>> and down into the bores of the solenoids. When one magnet was
>>>>> set in motion the other began to oscillate in time.
>>>>>
>>>>> My modification is to place a large table galvanometer in the
>>>>> circuit to monitor the current in the solenoids. Poser: If you
>>>>> set the apparatus into oscillation and stop by hand one of the
>>>>> magnets, what happens to the current?
>>>>>
>>>>> I have a picture of my version should anyone want me to send it to
>>>>> them.
>>>>>
>>>>> Cliff
>>>>>
>>>>>
>>>>
>
>
>
>

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As computers and web-connections get faster and more memory-loaded,
might we somewhat relax the proscription against attachments? I really
appreciated getting Cliff's picture; but I probably would not have
realized its importance from the dialog and therefore not sought out
the PIRA posting.



Just a thought.



Terry



* J. Terrence Klopcic, PhD
Director of Laboratories
Departments of Physics and Mathematics
Kenyon College*






cbettis@unlserve.unl.edu wrote:
> Sorry Folks,
>
> The attachment was just supposed to go to Dale. I must have screwed up
> the address when I sent the message. The picture is now posted on the
> PIRA web site.
>
>
> Cliff
>
> Quoting cbettis@unlserve.unl.edu:
>
>> Dale,
>>
>> Here it is.
>>
>> Cliff
>>
>> Quoting "Dale E. Stille" :
>>
>>> Cliff,
>>>
>>> I'll take one.
>>>
>>> Dale
>>>
>>> Adam Beehler wrote:
>>>> Yes, please send it. Thank you.
>>>> Adam Beehler
>>>>
>>>>
>>>> Sam Sampere wrote:
>>>>> Please send it...
>>>>>
>>>>> Sam
>>>>>
>>>>> -----Original Message-----
>>>>> From: tap-l-owner@lists.ncsu.edu
>>>>> [mailto:tap-l-owner@lists.ncsu.edu] On Behalf Of
>>>>> cbettis@unlserve.unl.edu
>>>>> Sent: Friday, August 07, 2009 9:26 AM
>>>>> To: tap-l
>>>>> Subject: [tap-l] Variation on a demo I saw at Ann Arbor
>>>>>
>>>>> I think it was Mark that had set up in the back room of the
>>>>> lecture demonstration area at the University of Michigan this
>>>>> demonstration: Two air core solenoids with their axes vertical
>>>>> were connected together with wires. Two magnets were suspended
>>>>> on springs above them so that the magnets could oscillate up
>>>>> and down into the bores of the solenoids. When one magnet was
>>>>> set in motion the other began to oscillate in time.
>>>>>
>>>>> My modification is to place a large table galvanometer in the
>>>>> circuit to monitor the current in the solenoids. Poser: If you
>>>>> set the apparatus into oscillation and stop by hand one of the
>>>>> magnets, what happens to the current?
>>>>>
>>>>> I have a picture of my version should anyone want me to send it to
>>>>> them.
>>>>>
>>>>> Cliff
>>>>>
>>>>>
>>>>
>
>
>
>

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