The photographer must chosen in advance to take such a picture, and chosen
the right time for the picture.

Michael Ossipoff

On Tue, Dec 1, 2015 at 9:11 AM, Dave Bell <db...@thebells.net> wrote:

> Yes, the surprise is not so much that it happened, but that the
> photographer was there at the one(?) precise date and time.
>
> Like a stopped clock, it’s precisely correct, once each period!
>
> Makes a great picture, regardless.
>
>
>
> Dave
>
>
> ------------------------------
>
> *From:* sundial [mailto:sundial-boun...@uni-koeln.de] *On Behalf Of *Jackie
> Jones
> *Sent:* Tuesday, December 01, 2015 4:48 AM
> *To:* 'Dan-George Uza'; sundial@uni-koeln.de
> *Subject:* RE: Just the right spot and time!
>
>
>
> I would have thought it should be very simple and not a freak.  As long as
> the sides of the post are parallel to the paving slabs and the sun is
> exactly south (or north if you are in the southern hemisphere), at twice a
> year this should be the result.  The dates would depend on the height of
> the post.  Although, I think it should work even if it isn’t due south,
> just when the sun is directly behind the post and the right height.
>
> Jackie
>
>
>
> Jackie Jones
>
> 50° 50’ 09” N    0° 07’ 40” W
>
>
>
>
>
>
>
>
>
>
>
> *From:* sundial [mailto:sundial-boun...@uni-koeln.de] *On Behalf Of 
> *Dan-George
> Uza
> *Sent:* 01 December 2015 11:36
> *To:* sundial@uni-koeln.de
> *Subject:* Just the right spot and time!
>
>
>
> Hello,
>
>
>
> This freak shadow alignment is featured on ASAP Science's Facebook page.
> The question is how to design something similar. Anybody?
>
>
>
> Dan Uza
>
>
>
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>
>
>
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