Sounds good to me.  Bill G.

In a message dated 1/5/01 6:31:15 AM Eastern Standard Time, 
[EMAIL PROTECTED] writes:

> The angular diameter (in the
>  direction perpendicular to the slits, which should be oriented close
>  to North-South and used near noon to eliminate any residual effects of
>  atmospheric refraction) is inversely proportional to the distance
>  between the slits and the plane when the images just touch.  That is,
>  the measurement consists of moving the plane until the images on it
>  just touch and then measuring the distance from there to the slits.
>  
>  --Art Carlson

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