I'm forwarding this message from another mail list...Tom Kreyche ----------------------------------------------------------------------
I'm looking for folks who live/work near one of two virtually identical equatorial sundials in Colorado who would be interested in collaborating with me to produce some sort of virtual view (upload a time series of digital pix, Webcam, or live Webcast) of either (or both) of these sundials during the March Equinox. Theoretically, the gnomon (or style) of a properly oriented equatorial sundial will not cast a shadow on the dial plate during the Equinoxes. I'm told (by a local sundial expert) that it should be possible to observe the gnomon shadow move from the lower to the upper dial face of the dial plate during the course of the day. IMO, that's a pretty cool way to indirectly observe the Sun cross the Earth's Equator--just need a li'l help to make it happen! Any takers? FWIW, I run my own Web server (T1 connectivity) and have access to a simply brilliant tech guru who will happily provide whatever technical support we may need. Here's the info. re: the two sundials (courtesy NASS Sundial Registry, http://www.sundials.org/registry/): St. Petersburg #224 Location: Veteran's Park Remarks: Equatorial, stone. Brochure includes a sketch. Built by same firm, Sundial Div., Erickson Memorial Co. Denver, CO, and looks virtually identical to, new one at University of Colorado - Boulder Campus (#172) Boulder #172 Location: University. of Colorado campus, front of east entrance to Norlin Library Remarks: Large solid-slab circular equatorial in granite & aluminum. Designed to be read from the upper surface in Spring/Summer, from the under side in Fall/Winter. The hours on the under side of the dial were installed backwards. The builder, Erickson Monuments, 1245 Quivas, Denver CO 80264, is to correct this error. [Photo] ================================================================= Walter Sanford, Director Carl Sandburg Middle School Center for Sky Awareness 8428 Fort Hunt Road Sandburg Planetarium Alexandria, VA 22308 Fairfax County Public Schools Work (voice): 703-799-6169 E-mail: [EMAIL PROTECTED] Home (voice): 703-765-9392 AMS Project ATMOSPHERE Atmospheric Education Resource Agent SCSA, Geosystems, & Camp T-Equity - URL: http://www.wsanford.com/ =================================================================
