Dear Kim, interesting - thank you. Take a photo and let us know the result. Regards, Kurt
kim hay <[email protected]> schrieb am Do., 3. Juni 2021, 12:27: > Hi Kurt > > That is a very simple and great idea. > > We wish to erect a sundial in our yard so this might just work. > > Thanks > Kim Hay > Ont. Canada > > On Thu, Jun 3, 2021, 5:13 AM Kurt Niel, <[email protected]> wrote: > >> Hello Sara, >> >> here is one of my time-lapse videos by a simple vertical stick: >> https://youtu.be/GOm7sqNUCzc >> >> Kurt >> Kepleruhr.eu >> EarthLAT1200.org >> >> Schechner, Sara <[email protected]> schrieb am Do., 3. Juni 2021, >> 00:21: >> >>> Hello, >>> >>> I am looking for a simple animation of how the shadow of a vertical >>> gnomon changes in length and direction during the course of the day from >>> sunrise to noon to sunset. Does anyone have one to recommend that could be >>> used with a museum video. Credit will, of course, be given. >>> >>> >>> >>> Thank you! >>> >>> Sara >>> >>> >>> >>> >>> >>> *Sara J. Schechner* >>> >>> *Altazimuth Arts* >>> >>> 42°36'N 71° 22'W >>> >>> West Newton, MA 02465 >>> >>> http://www.altazimutharts.com/ >>> <https://urldefense.proofpoint.com/v1/url?u=http://www.altazimutharts.com/&k=AjZjj3dyY74kKL92lieHqQ%3D%3D%0A&r=Y3uaNkd%2BN%2BBEMo7BAxbEQqOqpMk6uxYnCJsB4uxugzo%3D%0A&m=Ti1oQOLKwbdeBp0MOcYibsxY4Lg058dCGKYBaRLSNUY%3D%0A&s=2f04b2f3647abf5da1ada6decaf1b455ea2d0ead01efe881489e14a7d1adb139> >>> >>> >>> >>> *Sara J. Schechner, Ph.D. * >>> >>> David P. Wheatland Curator of the Collection of Historical Scientific >>> Instruments >>> >>> Lecturer on the History of Science >>> >>> Department of the History of Science, Harvard University >>> >>> Science Center 251c, 1 Oxford Street, Cambridge, MA 02138 >>> >>> Tel: 617-496-9542 | Fax: 617-495-3344 >>> >>> [email protected] |@SaraSchechner >>> >>> http://scholar.harvard.edu/saraschechner >>> >>> http://chsi.harvard.edu/ >>> >>> >>> --------------------------------------------------- >>> https://lists.uni-koeln.de/mailman/listinfo/sundial >>> >>> --------------------------------------------------- >> https://lists.uni-koeln.de/mailman/listinfo/sundial >> >>
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