Re: Sundial inside a room, but room is inside a canyon!

For more on mirror objectives, here is an article on using automobile hubcaps and parabolic L'eggs containers as reflectors. http://www.versacorp.com/vlink/jcart/allsky.htm Fisheye photographic lenses are another option, but expensive. Some early wide-angle camera lenses (for example, the Hi

Re: Sundial inside a room, but room is inside a canyon!

: A simpler idea might be to just use a video camera with a fisheye lens. Maybe on top of a flagpole on top of the roof. Edley. Date sent: Thu, 08 Jan 2004 21:35:15 -0800 From: Tom Egan To: sundial@rrz.uni-koeln.de Subject: Re: Sundial inside a room, but room is inside a canyon! Send

Re: Sundial inside a room, but room is inside a canyon!

TED]> wrote: All:A simpler idea might be to just use a video camera with a fisheye lens. Maybe on top of a flagpole on top of the roof.Edley.Date sent: Thu, 08 Jan 2004 21:35:15 -0800From: Tom Egan <[EMAIL PROTECTED]>To: sundial@rrz.uni-koeln.deSubject: Re: Sundial inside a room, but r

Re: Sundial inside a room, but room is inside a canyon!

eln.de Subject: Re: Sundial inside a room, but room is inside a canyon! Send reply to: sundial@rrz.uni-koeln.de > All: > > Yet another possibility, a back-to-basics one: When I told my neighbor > that his north wall is now known around the globe, thanks to th

Re: Sundial inside a room, but room is inside a canyon!

But one that couls lead to "escalating" the situation... Dave > Good, Mike. A fine example of "thinking outside the house". > -Bill > > In a message dated 1/9/2004 4:18:28 AM Eastern Standard Time, > [EMAIL PROTECTED] writes: > > > Tom, > > > > Instead of demolishing your neighbour's 2nd

Re: Sundial inside a room, but room is inside a canyon!

Good, Mike. A fine example of "thinking outside the house". -Bill In a message dated 1/9/2004 4:18:28 AM Eastern Standard Time, [EMAIL PROTECTED] writes: > Tom, > > Instead of demolishing your neighbour's 2nd floor, consider adding a third > floor to your own house. This could have additi

Re: Sundial inside a room, but room is inside a canyon!

Instead of demolishing your neighbour's 2nd floor, consider adding a third floor to your own house. This could have additional advantages. Mike Shaw 53.37 North 03.02 West www.wiz.to/sundials Good one, Mike! Following another of your ideas, instead of a

Re: Sundial inside a room, but room is inside a canyon!

Tom,   Instead of demolishing your neighbour's 2nd floor, consider adding a third floor to your own house.  This could have additional advantages.     Mike Shaw   53.37 North03.02 West   www.wiz.to/sundials

Re: Sundial inside a room, but room is inside a canyon!

Hi Tom, shadow watchers, A mirror objective might indeed work. Basically converting the large angular movement of the sun into a much narrower angle at the top and then re-expanding the angles at the bottom. This would be a curved mirror of course, or a set of small mirrors. Approximating i

Re: Sundial inside a room, but room is inside a canyon!

Yet another possibility, a back-to-basics one: When I told my neighbor that his north wall is now known around the globe, thanks to the Dialist Board, he announced that demolishing his second story was now an option. With a hearty chuckle, he said, "For the right price." I thanked him for

Re: Sundial inside a room, but room is inside a canyon!

Fellow Shadow Watchers, Why not have an electro-mechanical 'sun tracker' on the roof with an electro-mechanical 'repeater' in the room which could be placed on a wall for easy reading. This could take the shape of a 'hour hand' on a 'dial' with a 1:24 gearing to drive a

Re: Sundial inside a room, but room is inside a canyon!

This led me to consider an offshoot of the skylight concept.  Some of my neighbors have installed a "solar tube" which provides a skylight effect in a remote room by reflecting the sunlight down the shiny inner wall of a tube roughly one foot in diameter.  The light emerges at the lower end of th

Re: Sundial inside a room, but room is inside a canyon!

Hi Edley and all, The plot thickens!  What if, instead of a lens, a reflector is used? Suppose I borrow the so-called Victorian gazing ball from my garden (a large metal ball with a mirror finish, about 30 cm diameter) and mount it at the edge of my roof.  If I lie underneath it and observe t

Re: Sundial inside a room, but room is inside a canyon!

inside a room, but room is inside a canyon! Hi John,Interestingly, the notion of a skylight is what got me going on this perhaps quixotic quest.  My house is two stories high.  The room where I want the indoor sundial is on the first floor, so I'd have to demolish most of the room

Re: Sundial inside a room, but room is inside a canyon!

I would suggest: create the sundial on your neighbors waal only for the hours your south facing wall is not sun lit. For the other hours you can make your sundial on your own wall. Thibaud At 22:03 04-01-2004, you wrote: I sketched out a vertical dial, figuring a mirror as the nodus on a pin

Re: Sundial inside a room, but room is inside a canyon!

sundial@rrz.uni-koeln.de Subject: Re: Sundial inside a room, but room is inside a canyon! > Hi John, > > Interestingly, the notion of a skylight is what got me going on this perhaps > quixotic quest.  My > house is two stories high.  The room where I want the i

Re: Sundial inside a room, but room is inside a canyon!

Hi John, Interestingly, the notion of a skylight is what got me going on this perhaps quixotic quest.� My house is two stories high.� The room where I want the indoor sundial is on the first floor, so I'd have to demolish most of the room above.� My neighbor wouldn't mind this particular demol

Re: Sundial inside a room, but room is inside a canyon!

regularly find on this dialist board. This is a great example of it. Thank you, Thibaud! If this ever comes to pass, I'll report on it to the board. Tom Thibaud Taudin-Chabot wrote: Tom, There is an other solution: Put a miiror high on your south facing wall which will reflect the sun

Re: Sundial inside a room, but room is inside a canyon!

I sketched out a vertical dial, figuring a mirror as the nodus on a pin gnomon perpendicular to the dial face, using Fer J. de Vries' ZW2000 software. I used my northern California coordinates. It's a *little* large, for a suburban home. A mirror 10 feet from the plane of the wall seems to require

Re: Sundial inside a room, but room is inside a canyon!

It is not that difficult, mirror the neighbors wall in relation to the mirror, so it will be some imaginary wall in Tom's house. The mirror is the tip of the gnomon, or a little window whatever you like. The south facing dial on the mirrored neighbors wall has to be mirrored back: left and ri

Re: Sundial inside a room, but room is inside a canyon!

I love it! If Tom can sell his neighbor on the esthetic upgrade to his house, it's a great solution. How does the geometry work out? Would the mirror need to be *very* high, say, over 2 stories itself? Closer, or farther than Tom's South wall? I guess the design trick would be to calculate a Sou

Re: Sundial inside a room, but room is inside a canyon!

04 11:36 PM Subject: Sundial inside a room, but room is inside a canyon! I have a nice, south-facing room.  The trouble is, my neighbor's two-story house is about 10 feet away, due south.  Consequently,  if I cut an aperture in my wall, the sun would find it only mid-summer.

Sundial inside a room, but room is inside a canyon!

Message text written by INTERNET:sundial@rrz.uni-koeln.de >I think I can now properly formulate my question:  Is there a way to get the sun's rays down to my room so I can have them illuminate an ordinary sundial?  (Without demolishing my neighbor's house or spending a ton of money?)< Not perhaps

Re: Sundial inside a room, but room is inside a canyon!

There is an other solution: Put a miiror high on your south facing wall which will reflect the sun on your neighboors North wall. Design a sundial for that North Facing wall of your neighboor. He will never look at it but you see it all the time. Thibaud At 07:36 04-01-2004, you wrote: I ha

Sundial inside a room, but room is inside a canyon!

I have a nice, south-facing room.� The trouble is, my neighbor's two-story house is about 10 feet away, due south.� Consequently,� if I cut an aperture in my wall, the sun would find it only mid-summer.� The rest of the time, my neighbor's roof would block the sun.� Demolishing his second story