Re: Turtle Bay Sundial Bridge opens

Hi John, At last signs of the truth... Theoretically it's correct that the projection of a circular disc on to a flat surface parallel to the disc will be a circle. Unfortunately the sun's apparent size results in the disc becoming very blurred when you get a couple of hours off of local

Re: Turtle Bay Sundial Bridge opens/ circular node

The sundial in the court of the Hotel de Ville in La Rochelle (France) has a node that looks like a circle, actually it is star shaped. But in the middle there is a hole. That gives a nice and precise sunspot on the dial face to read the time. See the resemblance with the 'shadow sharpener'?

Re: Turtle Bay Sundial Bridge opens

:00 AM Subject: Re: Turtle Bay Sundial Bridge opens Hi John, At last signs of the truth... Theoretically it's correct that the projection of a circular disc on to a flat surface parallel to the disc will be a circle. Unfortunately the sun's apparent size results in the disc becoming

RE: Turtle Bay Sundial Bridge opens

, the discs are there. http://www.deutsches-museum.de/ausstell/dauer/zeitmess/img/poly.jpg Rudolf 52-30'N 4-40'E -Oorspronkelijk bericht- Van: John Carmichael Verzonden: maandag 12 juli 2004 22:07 Aan: [EMAIL PROTECTED] CC: Sundial List Onderwerp: Re: Turtle Bay Sundial Bridge opens You

Re: Turtle Bay Sundial Bridge opens

Hello All, If they just use the tip of the angled pieceas the gnomon (or nodus) and forget about using the edge of angled piece, then it could work. I have been wondering about the practical realities of the use of a nodus that is 200 - 300 feet away from the dial face. Wouldn't the

Re: Turtle Bay Sundial Bridge opens

List sundial@rrz.uni-koeln.de Sent: Monday, July 12, 2004 5:35 AM Subject: Re: Turtle Bay Sundial Bridge opens Hello All, If they just use the tip of the angled pieceas the gnomon (or nodus) and forget about using the edge of angled piece, then it could work. I have been wondering about

Re: Turtle Bay Sundial Bridge opens

My own preference is for a flat circular disk, oriented parallel to the dial face. This nodus produces a circular, not elliptical, shadow at all times and dates (i.e. regardless of the sun's position). This may seem counter intuitive, but it is true. -Bill Gottesman In a message dated

Re: Turtle Bay Sundial Bridge opens

know of any dials with this type of nodus? I don't. - Original Message - From: [EMAIL PROTECTED] To: sundial@rrz.uni-koeln.de Sent: Monday, July 12, 2004 12:23 PM Subject: Re: Turtle Bay Sundial Bridge opens My own preference is for a flat circular disk, oriented parallel to the dial

Re: Turtle Bay Sundial Bridge opens

John, how does this structure compare in height/scale to the Kitt Peak structure? The area required to accomodate the shadow of a nodus that high for a good portion of the daylight hours must be quite vast - assuming that it would operate year round. The casual user would also have to be

Re: Turtle Bay Sundial Bridge opens

Theoretically it's correct that the projection of a circular disc on to a flat surface parallel to the disc will be a circle. Unfortunately the sun's apparent size results in the disc becoming very blurred when you get a couple of hours off of local noon. Luckily when we were building the

Re: Turtle Bay Sundial Bridge opens

Subject: Re: Turtle Bay Sundial Bridge opens Robert Terwilliger wrote: The dial is included in the NASS Register of North American sundials. California / Redding / #518 http://sundials.org/registry/ Bob I see, therefore I believe. Show me the hour lines and how they coped

Re: Turtle Bay Sundial Bridge opens

at the moment. Robert will be giving an update talk at the NASS conference in Tenafly NJ (Aug. 19-22). Fred Original Message - From: Mac Oglesby [EMAIL PROTECTED] To: Sundial List sundial@rrz.uni-koeln.de Sent: Sunday, July 04, 2004 8:55 PM Subject: Re: Turtle Bay Sundial Bridge opens

RE: Turtle Bay Sundial Bridge opens

Subject: Turtle Bay Sundial Bridge opens Sundial list: A 217-foot bridge pylon forms the gnomon of a sundial. The Sundial Bridge, by Spanish architect Santiago Calatrava, across Sacramento River at Redding, California, opens today. I think that the dial face is marked on a plaza

Re: Turtle Bay Sundial Bridge opens

The dial is included in the NASS Register of North American sundials. California / Redding / #518 http://sundials.org/registry/ Bob I see, therefore I believe. Show me the hour lines and how they coped the 'small problem' that the gnomon does not point at the NCP and I'll believe it is

Turtle Bay Sundial Bridge opens

A 217-foot bridge pylon forms the gnomon of a sundial. The Sundial Bridge, by Spanish architect Santiago Calatrava, across Sacramento River at Redding, California, opens today. I think that the dial face is marked on a plaza at the end of the bridge.

Re: Turtle Bay Sundial Bridge opens

Hello Sundial List, Has anyone seen the sundial face, or plans of the dial face for this Sundial Bridge? Can someone offer a photo of the actual dial face? Mac Oglesby Sundial list: A 217-foot bridge pylon forms the gnomon of a sundial. The Sundial Bridge, by Spanish architect