On the sundial website of Frans Maes http://www.biol.rug.nl/maes/zonnewijzers/welcome-e.htm you can see the equatorial sundial of Sint-Martens-Voeren in Flanders, Belgium.
The shadow of a little ball in the slit-shaped pole-style hits the center line of the time scale on July 11, the holiday of the Flemish Community. On the sundial website of Frans Maes http://www.biol.rug.nl/maes/genk/welcome-e.htm you can see the Euro meridian in the subial park of Genk (Flanders, Belgium) Two granite blocks, 3 meter (10 ft) high and 5 ton in weight, enclose a slit of 3 cm wide (1.2"). It can pass a thin line of sunlight. When the sun is due south, at local noon, the light hits the center line of the tile plateau. A small rod connects the two blocks, just below the top. It causes a break in the line of light. This break serves as a marker which indicates the date along the meridian line. The dates of the national holidays of the member states of the European Union are marked by crosslines and identified by the national flags. Willy Leenders Hasselt, Flanders, belgium 50.9 N 5.4 E Tom Egan wrote: > I'm looking for examples of dials that will illuminate a particular spot > on the dial only on the date (and time of day, preferably) to be > commemorated. I recall running across links to tube-based dials in the > past, but apparently didn't file them away. > > Can anyone point me to such dials? I want to show examples to a group > of which I am a member. If they are intrigued by it, the members might > want to commission a dial. > > This request is not limited to tubes. Any clever idea is welcome. > > You may respond to me off-line if you wish at [EMAIL PROTECTED] > > Thanks. > Tom Egan > Costa Mesa California > > - -
