Date: Tue, 27 Apr 2010 08:21:34

Author: Urs Lauterburg

Subject: Re: Foucault Pendulum for New Building

Post:

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Dear Tap-lers,

Here an addition to this long time ago, old thread:

One of the professors here supplied me a link to a comprehensive
presentation about the Foucault Pendulum. It also covers the
practical implementation of the fancy setup, which was installed at
the University of Montreal. The slides are in French but even the
pictures are very illustrative.

http://www.viktortec.com/vt_talks.php?talkid=6

Viktor Zacek is a professor in particle physics at the University of
Montreal and his web site features some other nice topics. Some of
you may enjoy it too.

http://www.viktortec.com

Regards to all

Urs

Urs Lauterburg
Physics demonstrator
Physikalisches Institut
University of Bern
Switzerland


>Subject: Re: [tap-l] Foucault Pendulum for New Building
>From: Bernard Cleyet
>Date: Tue, 30 Mar 2010 00:04:41 -0700
>To: tap-l@lists.ncsu.edu
>
>Yes, if you're only going to use it a few weeks a year**, I
>recommend using the Foucault*** method, i.e. H. sapiens drive. His
>had a 67 m rod and 28 kg bob.
>
>** Total, divided by several times, I presume.
>
>*** http://en.wikipedia.org/wiki/Human I don't know about that pic.
>When I was there it wasn't. A "big" one is in the church of the
>surviving Priory "Saint Martin Des Champs"
>
>http://www.oldandsold.com/articles08/paris-travel-15.shtml
>
>http://en.wikipedia.org/wiki/Conservatoire_National_des_Arts_et_M%C3%A9tiers
>
>Evidently the original was moved back to the Pantheon and a copy
>installed in the Priory church.
>
>
>If you use a Pb bob you will have a higher Q for the same mass,
>either way I suspect one need give it a push only a few times a day.
>That cost will be insignificant if assigned to a guide or lab. tech.
>
>On 2010, Mar 29, , at 10:14, Terry Singleton wrote:
>
>>We will probably only have it setup for a few weeks of the year for
>>special events, so we will need a means to mount it in a
>>relatively easy and safe manner. Any ideas,
>
>June 1958.
>
>Cost then ~ $100 parts; Labour huge.
>
>On 2010, Mar 29, , at 13:24, Paul Doherty wrote:
>
>>The pendulum is tricky to build yourself. The wire grain structure,
>>the clamp that holds the wire and the drive mechanism all have
>>their tricky bits. There is an old writeup on the drive mechanism
>>in Scientific American Amateur Scientist
>
>bc
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Dear Tap-lers,

Here an addition to this long time ago, old thread:

One of the professors here supplied me a link to a comprehensive
presentation about the Foucault Pendulum. It also covers the practical
implementation of the fancy setup, which was installed at the
University of Montreal. The slides are in French but even the pictures
are very illustrative.

http://www.viktortec.com/vt_talks.php?talkid=6

Viktor Zacek is a professor in particle physics at the University
of Montreal and his web site features some other nice topics. Some of
you may enjoy it too.

http://www.viktortec.com

Regards to all

Urs

Urs Lauterburg
Physics demonstrator
Physikalisches Institut
University of Bern
Switzerland


Subject:
Re: [tap-l] Foucault Pendulum for New Building
From: Bernard Cleyet
Date: Tue, 30 Mar 2010 00:04:41 -0700
To: tap-l@lists.ncsu.edu

Yes, if you're only going to use it a few weeks a year**, I recommend
using the Foucault*** method, i.e. H. sapiens drive. His had a
67 m rod and 28 kg bob.

** Total, divided by several times, I presume.

*** http://en.wikipedia.org/wiki/Human I don't know about that pic.
When I was there it wasn't. A "big" one is in the
church of the surviving Priory "Saint Martin Des
Champs"

http://www.oldandsold.com/articles08/paris-travel-15.shtml

http://en.wikipedia.org/wiki/Conservatoire_National_des_Arts_et_M%C3%A9tiers

Evidently the original was moved back to the Pantheon and a copy
installed in the Priory church.


If you use a Pb bob you will have a higher Q for the same mass, either
way I suspect one need give it a push only a few times a day.
That cost will be insignificant if assigned to a guide or lab.
tech.

On 2010, Mar 29, , at 10:14, Terry Singleton wrote:

>We will probably only have it setup for a few weeks of the year
for special events, so we will need a means to mount it in a
relatively easy and safe manner. Any ideas,

June 1958.

Cost then ~ $100 parts; Labour huge.

On 2010, Mar 29, , at 13:24, Paul Doherty wrote:

>The pendulum is tricky to build yourself. The wire grain
structure, the clamp that holds the wire and the drive mechanism all
have their tricky bits. There is an old writeup on the drive mechanism
in Scientific American Amateur Scientist

bc


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From tap-l-owner@lists.ncsu.edu Tue Apr 27 08:59:17 2010

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