Willy Leenders wrote:
Delta Cad is only applicable for Windows. Is there a good
alternative for Macintosh?
Willy LEENDERS
Hasselt Flanders (Belgium)
Perhaps this?
http://www.draftingdeals.com/draftingdeals/finditem.cfm?itemid=7324
sorry! :{)
Dave
On Thu, 13 Jul 2006 [EMAIL PROTECTED] wrote:
Ah, another PC terrorist.
John B
No, I refuse to get (seriously) involved in religious issues!
The image just came to me, and couldn't be denied...
Dave
---
John Carmichael wrote:
Dave Bell just suggested changing the gnomon to the center finger
instead of the index finger for an added message to unwanted visitors.
(if you are the reclusive type and hate visitors.)
Maybe on my tombstone!
Wouldn't a monumental horizontal look neat if it had
Dave Bell wrote:
Less on-topic, a friend sent me a Power Point slideshow of Earth photos.
Quite a lovely presentation, and the third or so slide has a beautiful
image of the terminator...
And it's even nicer, with a URL!
http://advanceassociates.comand click on Blue Planet
[EMAIL PROTECTED] wrote:
Now we are talking about strange dials,
Does anybody know how this moon dial exactly works (if so)?
The information given on its web is not enough for me to understand.
Regards,
Anselmo
---
It sure isn't intuitive, but Chris and Brian are correct, as Carl
demonstrated.
One way to think about it, that at least gave me that Aha! feeling,
is this:
Yes, as the angle of incidence drops towards zero, a shadow would be
expected to elongate.
But the disk casting the shadow becomes
On Mon, 3 Apr 2006, Mike Isaacs wrote:
In message [EMAIL PROTECTED], Kathleen
[EMAIL PROTECTED] writes
On Wednesday of next week, at two minutes and three seconds after 1:00
in the morning, the time and date will be 01:02:03 04/05/06.
This will never, ever happen again!
Only in the
Douglas Bateman wrote:
I have a site on my browser,
www.mapmaker.com/shadowfacts/sunweb.asp that shows the terminator
throughout the year. I
Doug
https://lists.uni-koeln.de/mailman/listinfo/sundial
I have always loved the SunClock display. The changes through the
seasons are indeed
Looks liek yuo did...
Dave
On Wed, 18 Jan 2006, jean-paul cornec wrote:
Hi all
...to check if I have clicked the right buttons.
Jean-Paul Cornec
--
John Carmichael wrote:
But I still cannot receive postings because my test message never
appeared today in my inbox. But thanks to everybody who wrote me to
tell me it got posted.
Don't be too sure, John:
Many maillists are configured NOT to send a poster's own message back to
him.
Your
Dear dialists,
I have heard and seen pictures of that sundial placed
in Mars but I have never heard of a sundial on the Moon...
Does anybody know something about this?
Such a sundial would be 'more or less' similar to one
on the Earth... except for the small wobbling of the
Moon's orbit
On Wed, 27 Jul 2005, Helmut Sonderegger wrote:
Dear sundial friends,
a new beta-version of my software SONNE is ready for download from my webpage
( http://web.utanet.at/sondereh ). I added the construction of simple ring
sundials (in German Bauernringe = farmers rings) .
Hints on
Excellent! Thanks, Mike!
On Wed, 22 Jun 2005, michael Alexander wrote:
I do not know how to give an address to Google and then get the
lat/lon coordinates from that. Does anyone know how?
Give this site a try. I don't remember where I found it, but I use it to
get coordinates to use
Hello All:
In researching SGS, often I come across a sundial that has the
latitude and longitude inscribed on it, but I don't know where that is.
Assuming I'm lazy and don't want to look it up in my Rand McNally, is
there a website where you can type in the latitude and longitude and
it
The formula looks close to right for the time dilation effect, as if
quoted from memory.
I think it was supposed to be delta Tau = delta t times the square root
of (one minus v squared over c squared).
Dave
Werner Riegler wrote:
This sounds very interesting. However -- the formula
Hello Frank:
Bernhard's Franz's largest, and only public stained glass sundial was
made for a bridge at Bernkastel-Kues (River Moselle) in Germany. It's
Dial 204 in our SGS Image Archive (20th Century):
see:
Perhaps because of my bad English I have not understood completely the
explanation of the beautiful image.
However in my opinion the photo doesn¹t represent a single sequence of
photos but separate sequences of images of the Sun, of the Moon, of
Venus and Jupiter while they are rising and
On Thu, 5 May 2005, Robert Terwilliger wrote:
Another interesting photo on Astronomy Picture of the Day on May 3rd.
http://antwrp.gsfc.nasa.gov/apod/ap050503.html
Great picture, right up there with DiCiccio's Analemma.
Do I understand correctly, that Venus, the Moon, and Jupiter were caught
On Fri, 22 Apr 2005, nicola severino wrote:
yes, the author of this mosaic sundial (Valentino Falcone from
Morschwiller le Bas, Alsazia) have not used the classical tecnique,
and not the only Roman or Hellenic style, because him like to use the
miscellaneous style. At our knowledgment, this
Greetings fellow dialists,
For many years on my old computer I've enjoyed viewing Jim Morrison's
Electric Astrolabe (and it has lots of useful material for dialists). Now
with my new computer and Windows XP I seem unable to download the programme.
Can anyone offer an expanation and, even more
On Tue, 21 Sep 2004, Bill Thayer wrote:
Apart from anything else, if your website pages DO fully comply with these
standards, then you are entitled to put the W3C tick-mark 'logo' on your
website - which lets all visitors know that they should not experience any
problems with the pages,
On Tue, 6 Jul 2004, Roger W. Sinnott wrote:
John and others,
Maybe I'm being dense, but isn't the variation of the equation of time
with longitude masked (or at least complicated) by the similar
variation, from one year to the next, due to our use of a 365-day
calendar and occasional leap
On Mon, 5 Jul 2004, Frank Evans wrote:
Greetings fellow dialists,
I am hoping to gather notes on significant dials in Yorkshire, England.
I need about twenty dials and for a start have the following:
Newby Hall (cube), Seaton Ross (smeared all over the front of the
house), Heslington Hall,
On Fri, 28 May 2004, John Carmichael wrote:
You can see a photo of the completed center dial panel on the Image
Archive Page/ Stained Glass Sundials 21st century/Dial 79 on the Stained
Glass Sundial website at
http://advanceassociates.com/Sundials/Stained_Glass. Click on the Dial
79 text
On Tue, 6 Apr 2004, John Carmichael wrote:
I'm trying to reverse engineer the oldest known stained glass sundial
(made in 1529) so that I can determine the area in Germany for which it
was designed and the window's declination. All we know about the design
location of this dial is that it
From the latest electronic version of NASA Tech Briefs:
Solar compass finds north the old-fashioned way
By using a multiple-pinhole screen in front of a sensing array, plus
image-processing algorithms, researchers at NASA's Jet Propulsion Lab have
built a solar compass that determines the axis
On Sun, 22 Feb 2004, Daniel Roth wrote:
from now on, when you perform the action reply in your e-mail client,
not the sundial list (sundial@rrz.uni-koeln.de) will be addressed but
the sender of the e-mail to which you reply. Now you have to change the
addressee to sundial@rrz.uni-koeln.de
On Sat, 21 Feb 2004, Roger Bailey wrote:
Alberto, I have a copy of Asimov's classic science fiction short story
Nightfall on my book shelf. It tells the story of a planet in a multi sun
universe. Only once in about 10,000 years are all the suns on one side of
the planet. This Nightfall with
On Sat, 21 Feb 2004, Albert Franco wrote:
Once I read it again, I'll think more on the possiblities of the
eclipse. As I recall, though, it didn't seem realistic. Especially
with multiple (three?) suns, it seems that a long-term eclipse would be
almost impossible, and if one were possible
On Fri, 20 Feb 2004 [EMAIL PROTECTED] wrote:
[EMAIL PROTECTED]:
W, the Foucalt Pendulum would prove that the Earth rotates, but I
don't think it gives any evidence that it revolves about the Sun. What
could we do to take it a step further?
It does in principle, but it
could we do to take it a step further?
Dave Bell
37.277N 121.966W
-
On Sat, 14 Feb 2004, Chris Lusby Taylor wrote:
I recently bought a 24 hour quartz movement for a heliostat project.
It took months to arrrive, cost ?35 and is of no better quality than the 12
hour movements sold for ?1.99 by Argos as alarm clocks. So, I'm now
converting a ?1.99 movement by
On Tue, 10 Feb 2004, John Carmichael wrote:
Hello Geoff (cc. Sundial List):
Topic 1: Geoffry Lane writes:
Sorry to trouble you, but one or two things are puzzling me that I
hope you might just be able to help with. I know a certain amount
about glass-painters but I am no mathematician,
On Tue, 10 Feb 2004 [EMAIL PROTECTED] wrote:
I have reverse-engineered the stained glass window sundial on the Merchant's
House at Marlborough, Wiltshire, and have come up with an interesting
discovery. Want to know more?
David Brown
Somerton, Somerset, UK
Need you ask?
Dave
-
On Sat, 7 Feb 2004, Mac Oglesby wrote:
A friend sent me this URL:
http://www.earthwiseclock.com
It's an interesting display, but should we believe the claim about
showing true solar time?
Best,
Mac Oglesby
Interesting, yes, but unless it can be set for a specific date, and has
some
On Sun, 1 Feb 2004 [EMAIL PROTECTED] wrote:
Further, and perhaps more importantly, unlike books etc, many sites on the
internet are by nature transient and it is sometimes useful to capture
valuable sites before they disappear. I found this out to my cost years ago,
when I based a
OK, I have a master on CD, ready to mail off to you.
I pulled a copy of the site onto another machine here at work, that had
never seen the files. (Using a USB Flash posket drive. Very useful tool!)
It all ran perfectly there. So, I burned a CD, recorded at 1X, so it
should be no problem for any
On Fri, 30 Jan 2004, Roger Bailey wrote:
The epact link didn't work for me. I was not authorized to view this page.
The main link did work. http://www.mhs.ox.ac.uk I then went to the
collections database link and searched for 54054. There are six pictures of
the Kratzer dial available.
On Sun, 25 Jan 2004 [EMAIL PROTECTED] wrote:
I think I know the answer to this one, and I'll say more in due course, but
just to see what all you gurus say..
What hour lines should be inscribed, and in what places, on an inferior polar
dial for latitude 52N? The centrally-placed
On Sat, 24 Jan 2004 [EMAIL PROTECTED] wrote:
Hi Everyone,
Has anyone made the EarthDial yet? I did the dial in CorelDraw and saved
it in PDF and took it to my local copy center but they were unable to print
the completed dial, only an 8.5 x 11 page of part of the dial. I also tried
On Sun, 18 Jan 2004, Douglas Hunt wrote:
Can any of our Mailing-List experts suggest some horizontal sundial design
suitable for locations almost on the Equator, (actually 2 Degrees North) ?
We have been contacted by a school in Singapore, who would like to install
a large playground
On Fri, 16 Jan 2004, Mac Oglesby wrote:
Many thanks for the URL to the ST BASIC stuff. Chasing some of the
links there brought back lots of memories. I began programming in
BASIC in 1976, using a teletype connected to the Dartmouth
Time-Sharing System, and still have several (working)
On Fri, 16 Jan 2004, Gianni Ferrari wrote:
Hello boys !
You are all too young!! :-)
I have begun to program for my degree thesis, in 1965 in Bologna University
in (Italy).
At first in Assembler with a computer with a drum memory (how many
remember their existence? ) , after in
On Wed, 14 Jan 2004, Albert Franco wrote:
I'm fairly new to this also; about a year's worth of studying what is
online. So forgive errors.
It seems that as Roger said it would make the base slanted at a
cockeyed angle. And intuitively I'm not sure the hour lines would
stay in the proper
On Thu, 15 Jan 2004, John Hall wrote:
Hi Ed
The answer is yes, and there is an example of how Longitude correction
might be done in 'Practical Astronomy' by H. Robert Mills on page 106
in the edition I have. To correct for EQT replace the straight hour
lines with analemas and ensure
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 floor, consider
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
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
On Sun, 21 Dec 2003, Edley McKnight wrote:
I've uploaded a short note on Spiral Time Dials at
http://www.vandp.com/spiral.pdf
( in Adobe Acrobat format )
That explains about a more sophisticated spiral that can tell time
more accurately.
Nice... I have to think on this one for a bit, but
You could certainly cut the longitudinal (hour) grooves in analemma
curves. Read the time by following the set of curves to the current date,
then read the time by which groove has sun showing at the bottom. (*)
Couple of problems, though. First, you would need two columns, swapped out
for the
On Fri, 28 Nov 2003, Edley McKnight wrote:
This idea seemed interesting enough I thought you might like it.
Stab Dial - Date Grooves
This is an idea for a dial that I like very much.
Having taken the column and created the equatorial stab dial on
it with time settings much closer
On Wed, 26 Nov 2003, John Carmichael wrote:
Hello all:
See the new SGS Tech Page at:
http://www.advanceassociates.com/Sundials/Stained_Glass/TechInfo.html
or SGS Home Page at:
http://www.advanceassociates.com/Sundials/Stained_Glass/
p.p.p.s. In front of everybody, I want to thank Dave
On Wed, 26 Nov 2003 [EMAIL PROTECTED] wrote:
John and David,
You've done a great job. I spent a number of years designing and making
satined glass panels which adorn some windows in my home, and many years
developing anyses for sundials. My goal for next year is to design and build
a
On Mon, 24 Nov 2003, Tom Egan wrote:
I'm looking for a program that will allow me to print out on one piece
of paper an analemmatic and a horizontal sundial. This allows the user
to find the correct time and true north by rotating the paper in the
horizontal plane until both dials read
On Sun, 9 Nov 2003, Mac Oglesby wrote:
Actually, it's a vertical declining Foster-Lambert sundial with an
hour-points circle measuring 23 inches in diameter, and housed in an
octagonal case a little over 26 inches across the sides. The rod
gnomon (that 0.188 dia. tubing) is 16 inches
On Mon, 3 Nov 2003, Peter Tandy wrote:
For those who quoted from the 'Wikipedidia (never heard of it before -
sounds like an encyclopedia written on a Hawaiian beach.but maybe I'd
better not get into the oringin of THAT word!!), it appears, from memory,
to be EXACTLY what Bill Nye used,
On Mon, 3 Nov 2003, Louise Rigozzi wrote:
I have just joined the list and have quite a tricky question to ask already!
I am working with Tony from Lindisfarne
Sundials in England to create a sundial at a very high latitude (78 degrees)
and I am including a correction graph for
reading
On Mon, 29 Sep 2003, Thibaud Taudin-Chabot wrote:
John,
That is a nice piece of work. I saw my name mentioned under projection
dials. Small correction: I am not Canadian, but Dutch and I am living in
the Netherlands.
Thibaud
D'oh!! Sorry - it's fixed!
Dave
-
On Tue, 9 Sep 2003, Helmut Sonderegger wrote:
I put the new version 1.2 of my software Alemma on my homepage. An
Helmut Sonderegger
Sonnengasse 24, A-6800 Feldkirch
47.25 N, 9.59 O
Homepage: http://web.utanet.at/sondereh
Excellent!! It looks great, Helmut. Very easy to
set up and
Thibaud Taudin-Chabot wrote:
That sundial is not 1 spot projected on the floor, but the whole
sundial pattern projected on the floor. On the floor you only need 1
readingmark, nothing more.
I understand; I mentioned it as an example of dark spots being projected
on the receiving surface,
On Sat, 6 Sep 2003, John Carmichael wrote:
We're also discussing what I call antiaperture gnomon sundials. These are
neat. Imagine a large clear pane of clear or light colored glass on a wall.
And on this glass is a small very dark dot. Instead of a hole in a wall
casting a beam of light,
On Sat, 6 Sep 2003, J. Tallman wrote:
Perhaps there is a good ratio to use for dot/disc size vs. distance to
the shadow field? Perhaps some of the list members know the answer to
this...
Jim
1/107 had stuck in my mind, and I made a quick test a few minutes ago. We
have near-horizontal
On Sat, 6 Sep 2003, Mac Oglesby wrote:
107:1 seems to be the ratio between the projection distance from a
pinhole to a screen and the diameter of the Sun's image. That is, the
diameter of the Sun's image will be about 1/107th of the distance
from the projecting pinhole.
Since a pinhole
On Mon, 11 Aug 2003, John Carmichael wrote:
You know the tinted thin plastic (Mylar?) film that people use on
their home and car windows to cut down on light transmission? Well
it's the same thing, only it has a pretty stained glass patern in full
color printed on it. You buy a pattern
John,
If the gnomon is outside and the dial face is inside, with a pane of
glass in between, isn't there a refraction problem?
Mac
There is a refraction offset introduced, but can't you compensate for
that? I suppose it would complicate the layout calculations somewhat,
since the offset
I have been working for some time on making windows that admit sunlight at
specific times of the day. Essentially they are windows with louvers in the
shadow plane of a polar style for a specific time.
This is very similar to what Fabio Savian showed as his magic cube, the recent
US
Idiot Savant:
Very interesting question! Probably depends upon the particular person,
and how the calculations are made. Some may take all into effect, and I
vaguely remember hearing or reading about one who did question which
calendrical system was to be used. Prime number recognition would be
I may have missed it, but didn't see this site in the listings:
http://www.rnzih.org.nz/pages/sundial1.htm
Some nice photos of Southern dials, and some good explanatory diagrams...
Dave
-
I love Bill's pages, with the wonderful info on classical Rome and Italy,
but the URLs do get unwieldy! Try: http://tinyurl.com/iqi9 It is supposed
to be good forever...
Dave
On Fri, 1 Aug 2003, Bill Thayer wrote:
I don't recall any discussion of this dial. Does anyone have any
further
On Sat, 19 Jul 2003, Chris Lusby Taylor wrote:
Hi All,
There is such a thing as a universal vertical dial. I showed a prototype at
the BSS Conference in York. I am working on a more attractive realisation in
brass.
It is truly universal and can be fixed flat on any wall. The wall doesn't
On Thu, 17 Jul 2003, Carlos Contreras wrote:
A woman from Chile (Santiago has latitud -33.5 ), that bought a
sundial in Europe, asked me how she must install it. Bad thing, I told
she, because in the north hemisphere the sun travels clockwise and in
the southern it travels counterclockwise.
Just to make sure, John, you *are* talking about the rod bolted to the
dial face being angled according to latitude, right? Not perpendicular to
the plane of the dial! There are examples of dials like that, but they use
the point of the rod or another nodus, and project the shadow onto a
On Sun, 13 Jul 2003, Bill Thayer wrote:
At ChiEraCostui (Who Was That?), an Italian site primarily
recording plaques and statues in various cities and identifying the
people they memorialize -- a subsection with 42 sundials; I?failed to
see it in Daniel Roth's link list:
On Sun, 6 Jul 2003, [ISO-8859-1] Anselmo P?rez Serrada wrote:
In our introductory course to gnomonics we are going to give
the kids a little diplomma. I thought it could include a motto
and I belive the classic by Omar Khayyam would do very well,
you know, the one that says T'is nothing but
I have a simple table page up at:
http://www.AdvanceAssociates.com/Sundials (select Stained Glass) or:
http://www.AdvanceAssociates.com/Sundials/Stained_Glass or:
http://tinyurl.com/frf4
Dave
-
On Mon, 30 Jun 2003, John Carmichael wrote:
Thanks to all who are sending in photos. Keep 'em coming. The ones
that you Brits are sending me are absolutely stunning examples. I
really think these dials deserve their own special link in the BSS and
NASS websites. (Although I don't know what
On Fri, 20 Jun 2003, Gianni Ferrari wrote:
Some years ago there was a short discussion, on the Italian Sundial Mailing
List, on the sundials at the Pole: I try to translate in English [ :-) ] my
considerations at the time.
I refer to the South Pole and, obviously, to the season in which
On Sat, 14 Jun 2003, John Carmichael wrote:
Thanks Gianni Fer for that data. I was able to roughly determine the
date of greatest EOT change by looking at the slope of the EOT curve (EOT is
changing fastest when slope is greatest) or the analemma (EOT is changing
fastest when the slope is
I drew up some stages in the development of a horizontal dial, using
DeltaCad and the method described earlier. They are posted for reference
at:
http://www.AdvanceAssociates/Sundials/GeomConst/
Dave
37.28N 121.97W
-
Vries
De Zonnewijzerkring
mailto:[EMAIL PROTECTED]
http://www.de-zonnewijzerkring.nl
Home
mailto:[EMAIL PROTECTED]
http://www.iae.nl/users/ferdv/index-fer.htm
Eindhoven, Netherlands
lat. 51:30 N long. 5:30 E
- Original Message -
From: Dave Bell [EMAIL PROTECTED
:[EMAIL PROTECTED]
http://www.iae.nl/users/ferdv/index-fer.htm
Eindhoven, Netherlands
lat. 51:30 N long. 5:30 E
- Original Message -
From: Dave Bell [EMAIL PROTECTED]
To: sundial@rrz.uni-koeln.de
Sent: Sunday, June 08, 2003 5:09 PM
Subject: Re: Geometric dial layout
On Sat, 7 Jun 2003, John Carmichael wrote:
I know you wrote the list asking for answers, not questions. But I don't
understand the whole basis of the Britannica instructions.
They say:
A horizontal dial designed for Chicago's latitude radiates as a
42 deg ellipse.
I've never heard
On Sat, 7 Jun 2003, [ISO-8859-1] Anselmo P?rez Serrada wrote:
I think I can help you on this. They use a very elegant method to draw a
sundial based on geometrical
affinity that traces back to our High School days:
1. Draw two concentrical circles : one of radius r and the other one of
On Sun, 11 May 2003, John Carmichael wrote:
There will be a total lunar eclipse on Thursday, May 10
Eh? May 10 *was* Saturday, Thursday *will be* May 15...
Dave
-
On Fri, 9 May 2003, Roger Bailey wrote:
The ancient observatory in Beijing has a number of interesting
astronomical instruments, armillary spheres, quadrants etc. This
observatory goes back to XI century and utilized, among other things,
a water powered armillary sphere, the Yang Armillary
On Sun, 27 Apr 2003, fer j. de vries wrote:
You wrote:
I notice that Jean Meeus is also particular about referring to JD as
Julian Day rather than Julian Date.
In a note Jean Meeus writes in his book:
---
In many books we read 'Julian Date' instead of 'Julian Day'.
For us, a
On Thu, 24 Apr 2003, Bodo Hubinger wrote:
What a wonderful page. But what do those people like me who are not able
reading the French?
Does any one know an equivalent page in the English?
Bodo Hubinger
http://www.ens-lyon.fr/RELIE/Cadrans/activpedago/TextesCours/CadresCours
On Mon, 24 Mar 2003, Tony Moss wrote:
Fellow Shadow Watchers,
I've just been asked to consider designing a
sundial for a VERY high northerly latitude accompanied by the query
Would this be the most northerly known sundial?
What are the existing likely candidates
Heh...
It depends upon which hand I hold the GPS receiver in!
Dave
37.28N 121.97W
On Fri, 21 Mar 2003, Frank Evans wrote:
Greetings fellow dialists,
Dave Bell in his recent message signs himself as below:
Dave
37.406847N 122.027872W (at work)
Might it be that this position is a couple
On Wed, 19 Mar 2003, [ISO-8859-1] Anselmo P?rez Serrada wrote:
Dear dialists,
As you all know, a Meridian Dial is a sundial with only one hour line:
that of noon,
which coincides with the meridian or N-S line if we measure local time.
In Europe you can find them in some temples, the most
There are others on this list with far more experience than I, and I hope
they will chime in. I doubt that simple mortar will provide a good bond to
the metals, even to the threaded rod (unless it is a very deep, coarse
thread.) It sounds like a good solution to leveling the dial plate,
though. I
On Tue, 11 Feb 2003, Roger Bailey wrote:
In any case a tropical analemmatic dial suffers from reversing shadows and a
compressed hour ellipse. The question remains. Have any tropical analemmatic
sundials been built?
It would be interesting to draw lines from the terminator maps to the
On Mon, 10 Feb 2003, Frans W. Maes wrote:
An enthousiastic group, headed by Martha Villegas, has established a
beautiful analemmatic sundial in Torre?n, Mexico, probably the first one in
the country.
Read all about it at: http://www.biol.rug.nl/maes/torreon/welcome-e.htm
Wow! A beautiful
I can't comment on the issue of non compatibly, but in my opinion
there is a much larger problem with frames and that is you can not
bookmark, link or paste a page URL into an email. On my web pages I
copy and paste the navigation links.
Thanks,
Brooke Clarke
One useful trick that helps
Ah-hah!
Still not quite correct. Make it singular:
http://www.nonvedolora.it/english/experiment.htm
Dave
37.28N 121.97W
On Sun, 2 Feb 2003, Fabio Savian wrote:
the correct address for the pictures of 'azimuthal conic hours' is
www.nonvedolora.it/english/experiments.htm
Fabio Savian
-
On Sat, 1 Feb 2003 [EMAIL PROTECTED] wrote:
How far south from the north pole to the equator can the pole star be seen?
Is is visible at Latitude 8 degees north to Latitude 16 degrees north ?
Standing on land of course not flying.
Ta for help. David.
You would require extremely good
On Sun, 19 Jan 2003 [EMAIL PROTECTED] wrote:
Fascinating. Weird and wonderful!
2. A whole array of very large sundials spread across the city of Bristol had
vertical gnomons and all hour lines at 15 deg.! Never built - perhaps it was
as well.
This makes my head hurt, just trying to
On Thu, 16 Jan 2003, Tony Moss wrote:
Many years ago a group of students demonstrated their 'robot fire engine'
to a visiting VIP. The sensor was basically a scanning parabolic
reflector and a thermistor arranged to home in on a fire then squirt
Right about here, is where I started LOL!
On Thu, 16 Jan 2003 [EMAIL PROTECTED] wrote:
In a message dated 1/16/2003 7:14:44 PM Eastern Standard Time,
[EMAIL PROTECTED] writes:
Right about here, is where I started LOL! Too many years as an engineer,
not to have made just that kind of mistake...
LOL.Little Old
On Sat, 4 Jan 2003, John Carmichael wrote:
After a huge amount of work, my new website is finally up and running
at www.sundialsculptures.com I was very lucky to find a competent
webmaster who helped me put this together for a reasonable price. Good
webmasters are rare (like good sundial
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