Date: Wed Feb 28 13:39:10 2007 Back to Contents

Author: J. Terrence Klopcic

Subject: Re: LabGuy Rot Suggestions

Post:
And coating copper pennies with mercury to make them into shiny silver
"over-sized dimes".

Terry

----- Original Message -----
From: "Paul Doherty"
To:
Sent: Wednesday, February 28, 2007 11:40 AM
Subject: Re: [tap-l] LabGuy Rot Suggestions


> And of course the always memorable mercury beating heart demo!
>
> Tony French showed us a movie of this experiment and we the students
> demanded that he show it again and again.
>
> Hm I wonder if its on Youtube yet?
>
> Also I saw an early rectifier actually working in a South African gold
> mining museum.
> A 1/2 m diameter florence flask half full of mercury, with a point just
> above the surface of the liquid.
> The AC caused breakdown preferentially in one direction of electron flow.
> And the mercury surface didn't get pitted...for long.
>
> Paul D
>
> Who admits to rolling mercury around in his hands as a youth.
>
>
>
> On Feb 28, 2007, at 7:42 AM, Santos Ramirez wrote:
>
>> Talk about mercury vapor....
>>
>> Brings to mind
>> a demo that consisted of a mounted vertical spring that had one
>> end dipped in a mercury cup. A current was run through
>> the spring and the mercury, causing the spring to contract.
>> The end of the spring would lift out of the mercury, breaking
>> the circuit. The spring would then drop, re-starting the process.
>> You could see the vapor.
>>
>> Wonder if this is in a museum somewhere?
>>
>> Santos
>>
>>
>>
>>> "I'm doing asbestos I can!"
>>>
>>>
>>> On Feb 27, 2007, at 12:12 PM, Sam Sampere wrote:
>>>
>>>> More for labguy rot...
>>>>
>>>> 'dems only mercury vapors. Don't need no stinkin' respirator.
>>>>
>>>> A little asbestos dust won't hurt ya.
>>>>
>>>> Get shocked by those open contacts once and you'll learn never to
>>>> touch
>>>> them again.
>>>>
>>>> Cough cough cough.
>>>>
>>>> Sam
>>>>
>>>> -----Original Message-----
>>>> From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-
>>>> owner@lists.ncsu.edu] On
>>>> Behalf Of Santos Ramirez
>>>> Sent: Tuesday, February 27, 2007 12:25 PM
>>>> To: tap-l@lists.ncsu.edu
>>>> Subject: Re: [tap-l] LabGuy Rot Suggestions
>>>>
>>>> Bill,
>>>>
>>>> I think this list better reflects a "lab guy"'s requirements
>>>> than someone that needs to quit. :) Might fit on a T-shirt. SR
>>>>
>>>>
>>>> Could call it:
>>>>
>>>>
>>>> YOU ARE A "LAB GUY" IF ...
>>>>
>>>>> A: Knows the location of everything in the Demo Room-- or at least
>>>>> where it /was/ before someone borrowed it.
>>>>>
>>>>> B: Has every published edition of Halliday and Resnick.
>>>>>
>>>>> C: Personally knew Sutton.
>>>>>
>>>>> D: Knows the meaning of the the acronym "PIRA".
>>>>>
>>>>> E: Can set up any demonstration in any lecture hall on campus in 10
>>>>> minutes flat. And is frequently asked to do so at the last minute...
>>>>>
>>>>> E: Has at least 195 of the "PIRA 200" demonstrations in their
>>>>> department collection.
>>>>>
>>>>> F: Can explain even the most basic demonstrations to the most
>>>> advanced
>>>>> professors.
>>>>>
>>>>> G. Can recall the last dozen bars visited with Ziggy during AAPT
>>>>> meetings. 10? 6? 1??
>>>>>
>>>>> Cheers.
>>>>>
>>>>> bill
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>


From tap-l-owner@lists.ncsu.edu Wed Feb 28 13:39:10 2007

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