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
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 a dial face on the order of 86 feet wide by 50 feet tall!
If the small attachment comes through, it should explain it...
Dave
37.277N 121.966W
On Sun, 4 Jan 2004, Thibaud Taudin-Chabot wrote:
> Dave, Tom,
>
> 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
right
> should switched like top and bottom. And that is simply done by rotating
> the whole design around a horizontal perpendicular axis.
>
> Thibaud
>
>
> At 18:21 04-01-2004, you wrote:
> >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 South-facing dial with a
> >nodus 10 feet away from the face, and adjust the nodus hieght to fit...
> >
> >Dave
> >37.277N 121.966W
> >
> >On Sun, 4 Jan 2004, Thibaud Taudin-Chabot wrote:
> >
> > > Tom,
> > >
> > > 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 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 is not an option, he says.
> > > >
> > > >Tom Egan
> > > >33.642 N, 117.943 W-
> >
> >-
>
> ---------------------------------------------------------------------
> Thibaud Taudin-Chabot
> 52° 18' 19.85" North, 04° 51' 09.45" East, alt. -4.50 m
> home email: [EMAIL PROTECTED]
>
>
> -
>
---------------------------------------------------------------------
Thibaud Taudin-Chabot
52° 18' 19.85" North, 04° 51' 09.45" East, alt. -4.50 m
home email: [EMAIL PROTECTED]
-
