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[ATM] Day and Night Foucault

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Subject: [ATM] Day and Night Foucault
From: "Arjan te Marvelde" <arjan.te.marvelde@hetnet.nl>
Date: Mon, 13 Aug 2007 10:07:22 +0200
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Yesterday afternoon I tested my mirror with a set of KE readings, indicating
a very good figure.
(See http://home.hetnet.nl/~artm/atm/travel2/images/070812_fta2.jpg )

Yesterday evening I repeated to check the results, but these indicated a
just OK mirror.
(See http://home.hetnet.nl/~artm/atm/travel2/images/070812_fta3.jpg )

Today I double checked, and guess what ... result similar to the first set!

The temperature has been fairly constant, and the mirror has been on the
stand all the time.
Could the readings be influenced by ambient lighting conditions, and by this
amount?

Thanks,
   Arjan te Marvelde

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- Re: [ATM] Day and Night Foucault
  - From: Anthony Stillman <atmer@flash.net>
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  - From: "Bob May" <rmay@nethere.com>

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