RE: Off topic: English text explanation please

2023-07-07 Thread Jack Aubert via sundial
their delightments under the elm tree which could be called a bower. But the German translation, appropriately, kept the sense of “chambers.” So, to summarize: the original English does not quite make sense to a modern reader unless he just guesses that “to” means “like.” Jack Aubert

RE: Adjusting dial to new location

2023-04-04 Thread Jack Aubert via sundial
its polar axis. Jack Aubert From: sundial On Behalf Of Steve Lelievre Sent: Monday, April 3, 2023 7:47 PM To: Rod Wall ; kool...@dickkoolish.com Cc: 'Sundial sundiallist' Subject: Re: Adjusting dial to new location Hi, Roderick, My home internet connection is still non

RE: Adjusting dial to new location

2023-04-02 Thread Jack Aubert via sundial
Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die eigentliche Nachricht steht dadurch in einem Anhang. This message was wrapped to be DMARC compliant. The actual message text is therefore in an attachment.--- Begin Message --- I thought about this briefly. I had always thought

Star Chasers of Senegal

2023-02-27 Thread Jack Aubert via sundial
in Istanbul. There are some beautiful videos of Dakar, Istanbul and several mosques. Jack Aubert --- End Message --- --- https://lists.uni-koeln.de/mailman/listinfo/sundial

RE: Republican Calendar, Year 231

2022-09-18 Thread Jack Aubert
can tell what today’s day and month would have been called. I wonder if anybody can figure out a way to juxtapose a pre-Julian Roman calendar onto a modern calendar. I think it would have to be arbitrarily reset somehow rather than fast forwarded. Jack Aubert From: sundial

RE: U.S. Senate approves bill to make daylight saving time permanent

2022-03-16 Thread Jack Aubert
Not exactly. In Paris, lunch time is at 1:00. That is very close to solar noon. Paris is just a few degrees east of London. Maybe lunch time is at solar transit. From: sundial On Behalf Of Kurt Niel Sent: Wednesday, March 16, 2022 7:18 AM To: Steve Lelievre Cc: Sundial List

RE: Telling time with a rope?

2022-03-03 Thread Jack Aubert
I tired searching for “pommeau de ciel” and “pommeau des cieux”, which not surprisingly I did not recognize in either English or French. Pommel is Pommeau in French. I mostly got hits for shower heads and gear shift knobs… but did find a reference to the original French on Google Books:

RE: Is this an educational sundial, or a 'NON-dial'?

2021-04-03 Thread Jack Aubert
. It is hard enough for me visualize the projection of a conic section onto a horizontal plane and relate it to the sky and the sun let alone explain it to a kid. It’s somewhere between magic and a trick pool shot. Jack Aubert From: sundial On Behalf Of R. Hooijenga Sent

RE: Strange sundial in China

2021-01-09 Thread Jack Aubert
it would be worthwhile to take some photos that could be used to count the marks more clearly and figure out their spacing. With accurate measurements, it may be possible to figure out. Or maybe there is somebody in China who has already figured it out. Jack Aubert From: sundial

RE: Time problem

2020-06-30 Thread Jack Aubert
as if the programs may be handling the longitude offset, and possibly the equation of time differently. Does this make sense? Jack Aubert From: sundial On Behalf Of Ross Sinclair Caldwell Sent: Monday, June 29, 2020 2:06 PM To: Michael Ossipoff Cc: sundial list sundials Subject: RE

RE: Advice sought re:transparent sundial design

2020-04-22 Thread Jack Aubert
the mechanical aspects of this project than the actual design of the dial. Has John Carmichael been able to comment? He is the stained glass expert. Jack Aubert From: sundial On Behalf Of Michael Ossipoff Sent: Wednesday, April 22, 2020 7:19 PM To: Steve Lelievre Cc: Alon Gan

RE: Can a sundial disprove Flat Earth?

2019-06-17 Thread Jack Aubert
I am not the first to observe that you can pick any arbitrary spot and declare it to be the center of the universe. I frequently argue that there is nothing wrong with adopting a geocentric view for the purpose of understanding what we see happen in the sky. It is not actually “wrong”, even

RE: dischrony

2019-03-12 Thread Jack Aubert
ong: I once showed up for an (thankfully unimportant) group meeting an hour early, a day late but a week early. (Sunday at 2:00 PM for a meeting the following Saturday at 3:00 PM.) That was before I had a PDA or an Iphone. Jack Aubert -Original Message- From: sundial On Behalf Of Frank Ki

RE: More Sun

2019-01-12 Thread Jack Aubert
Corrected HTTP link: https://www.outsideonline.com/2380751/sunscreen-sun-exposure-skin-cancer-sci ence?utm_medium=social_source=email_campaign=onsiteshare Jack Aubert -Original Message- From: sundial On Behalf Of Jack Aubert Sent: Saturday, January 12, 2019 4:15 PM To: 'Kevin Karney

More Sun

2019-01-12 Thread Jack Aubert
And on a related note, slightly off-topic, here is an article that suggests the medical advice to avoid the sun may completely wrong: https://www.outsideonline.com/2380751/sunscreen-sun-exposure-skin-cancer-sci ence?utm_medium=social_source=email_campaign=onsiteshare ... which reinforces my

RE: Equinox Analemma

2018-09-23 Thread Jack Aubert
I had the same reaction. I think the NASA page is simply mistaken. Either that or the image was edited to make it vertical. Jack Aubert From: sundial On Behalf Of Bill Gottesman Sent: Sunday, September 23, 2018 10:59 AM To: Robert Terwilliger Cc: Sundials List Subject: Re: Equinox

RE: EU backs ending Daylight Saving Time

2018-08-31 Thread Jack Aubert
In Paris, and I believe all of France, lunchtime is always at 1:00 PM. Solar moon (more or less). Jack -Original Message- From: sundial On Behalf Of Frank King Sent: Friday, August 31, 2018 10:32 AM To: Steve Lelievre Cc: Sundial List Subject: Re: EU backs ending Daylight Saving

RE: Is this sundial business 'genuine', or not?

2018-07-19 Thread Jack Aubert
the earth, silly!. But it is almost impossible to understand the daily motion of the stars, the sun and the seasons without adopting a geocentric perspective. Eppur se muove! Jack Aubert From: Steve Lelievre Sent: Thursday, July 19, 2018 11:39 AM To: sundial@uni

RE: Is this sundial business 'genuine', or not?

2018-07-18 Thread Jack Aubert
. Jack From: Roger Sent: Tuesday, July 17, 2018 7:32 PM To: Jack Aubert ; 'Michael Ossipoff' ; 'sundial list' Subject: RE: Is this sundial business 'genuine', or not? Hi Jack and Michael, I don’t agree. The concept is very simple. Perhaps you have had

RE: Is this sundial business 'genuine', or not?

2018-07-17 Thread Jack Aubert
I very much agree with this. In fact, at the risk of sounding stupid, I have to confess that I don’t have an intuitive grasp of how an analemmatic dial works. Yes, I have at various times gone through the explanation, but it does not stick in any way that I can mentally attach to the plane of

RE: blank subject line

2018-05-22 Thread Jack Aubert
Sorry for the non-sundial spam. This is just a test to see if my mail server, which I run, is DMARC compliant. It should pass the SPF test but I may have to install DKIM Jack Aubert From: sundial <sundial-boun...@uni-koeln.de> On Behalf Of Fred Sawyer Sent: Tuesday, May 22

RE: Inquiry

2017-04-22 Thread Jack Aubert
also cited in Christopher Daniel's excellent and definitive monograph on the Equation of Time and invention of the Analemma, published in the BSS volume 17. Jack Aubert -Original Message- From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Steve Lelievre Sent: Friday, April 21,

RE: Looking for minutes and seconds correction for whole year for Equation of Time plaque

2017-01-26 Thread Jack Aubert
HI Simon, I like to use the “time of solar transit” version of the EOT from your spreadsheet because I can never remember with any confidence if I am correcting the watch or the dial. Jack Aubert From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Simon Wheaton Smith

RE: An interesting piece of timekeeping

2017-01-18 Thread Jack Aubert
No, as far as I know, it’s only for Iphone. From: rodwall1...@gmail.com [mailto:rodwall1...@gmail.com] Sent: Wednesday, January 18, 2017 12:26 AM To: Jack Aubert <j...@chezaubert.net>; 'David Patte ₯' <dpa...@relativedata.com>; sundial@uni-koeln.de Subject: Re: An inter

RE: An interesting piece of timekeeping

2017-01-17 Thread Jack Aubert
The smartphone app has been written. Look for Chronometer by Emerald Sequoia. You can easily spend hours exploring it. It consists of fifteen different virtual watches, each one offering a different set of temporal and astronomical features. Jack Aubert From: sundial [mailto:sundial

RE: Photo-etching

2016-09-01 Thread Jack Aubert
I have been photo-etching sundials following Tony's video for several years and have written up detailed instructions based on my own experience, including availability of tools and materials. For anybody who wants to have a go at this here is a link to that paper:

RE: Sawyer Dialing Prize 2016 - Bailey Points

2016-07-31 Thread Jack Aubert
Roger seems to be the only person in the Sundial community who does not call them "Bailey Points."I think his Canadian modesty. Jack From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Helmut Sonderegger Sent: Saturday, July 30, 2016 8:39 AM To: sundial@uni-koeln.de

RE: Sundial in Risen movie

2016-05-06 Thread Jack Aubert
He looks like he’s texting something on his Iphone. From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of John Davis Sent: Friday, May 06, 2016 3:32 AM To: Dan-George Uza Cc: sundial@uni-koeln.de Subject: Re: Sundial in Risen movie Hi Dan, Well

RE: Southern Hemisphere

2015-11-15 Thread Jack Aubert
shapes than the horizontal plate with inclined gnomon you are used to seeing. In Perth your gnomon should, indeed, have a 32 degree slope and be parallel to the earth's axis. But the hour line numbers are reversed from what they are in the northern hemisphere. Jack Aubert

RE: NASS site down?

2015-11-01 Thread Jack Aubert
Yes, the server died, but has been resurrected with some replacement hardware. It is back up and running now. Jack Aubert From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Bill Gottesman Sent: Saturday, October 31, 2015 8:07 PM To: Sundials List <sundial@uni-koeln

RE: Romanian reclining sundial

2015-10-04 Thread Jack Aubert
?” It was interesting to watch the reactions. Some people immediately knew why; others seemed perplexed. Jack Aubert From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Michael Ossipoff Sent: Sunday, October 04, 2015 7:42 AM To: Willy Leenders; sundial list Subject: Re: Romanian

RE: Romanian reclining sundial

2015-10-01 Thread Jack Aubert
It is a very attractive dial and a nice way to decorate one’s roof. But you may want to photoshop out what appears to be an unmetered electrical tap powering the bar-restaurant across the street. Jack Aubert. From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Dan

RE: due east photos

2015-09-24 Thread Jack Aubert
Why not? Richard Feynman argued that that a quantum mechanical particle can take an infinite number of paths between two points to explain the wave function. Or something like that. I don’t actually understand that stuff myself. Maybe the direction to Mecca should be a wave function.

RE:

2015-09-20 Thread Jack Aubert
I have done something similar with etched-engraved dials. I got the powder from Harbor Freight. I have several colors but black really to be the most appropriate. The cost for a lifetime supply jar is only a few dollars. I use a razor blade to squeegee it into the etched areas and then

RE: Looking for suggestings on surface treatment of my aluminum cross sundial "Time to Reflect"

2015-09-19 Thread Jack Aubert
Tony Moss did a presentation somewhere a few years ago on anodizing aluminum. I have a vague memory of his doing something at one of the NASS conferences, but it could have been the BSS bulletin or an email to this list. I think he used some kind of water soluble coloring that was absorbed by

RE: Temporal Hours

2015-08-04 Thread Jack Aubert
of the Amphiareion is, of course, equatorial and not horizontal as I originally said. Jack Aubert From: Roger Bailey [mailto:rtbai...@telus.net] Sent: Monday, August 03, 2015 8:13 PM To: Jack Aubert; sundial@uni-koeln.de; Sasch Stephens Subject: Re: Temporal Hours

RE: Temporal Hours

2015-08-02 Thread Jack Aubert
used temporal hours. Jack Aubert From: schalda...@aol.com [mailto:schalda...@aol.com] Sent: Thursday, July 30, 2015 1:55 AM To: rtbai...@telus.net; email9648...@gmail.com; sundial@uni-koeln.de Subject: Re: Temporal Hours Greek and Roman dials were not horizontal

RE: Painted dial

2015-05-08 Thread Jack Aubert
Hi Jackie, I have done several dials like this cut from a large plastic board I purchased several years ago. The board is some kind of sign-board ¾ thick, with high density foam core and smooth plastic on each side. I cannot locate either the name of this material or where I got it from,

RE: A question for the mathematically inclined

2015-02-03 Thread Jack Aubert
interested in the slope of the curve around the equinoxes at northern latitudes, when the transition from long summer days to short winter days is quite abrupt. Jack Aubert -Original Message- From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of John Goodman Sent: Sunday

RE: Orologi Solari n. 6

2015-01-13 Thread Jack Aubert
Just learn Italian! It takes a little effort but you can do it. It’s an excellent language and is useful for a number of things besides gnomonics, including visiting Italy and listening to opera. Jack Aubert From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Reinhold

RE: leap year

2014-08-28 Thread Jack Aubert
I'm sure there are more than two of us and my Latin is pretty minimal. The leap year date is a double-six (in French it is called bissextile). It is a second sixth date. The sixth means six days before the March calends (beginning of March). Therefore there is a second February 24 so to avoid

RE: Sundials in Transylvania need your help!

2014-08-15 Thread Jack Aubert
Hi Dan, Beautiful project. I’m also in for a minor contribution. I like paypal mainly because it spares me from having to remember or copy a 16 digit credit card number. Jack From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Roger Bailey Sent: Friday, August 15,

RE: Michael Lee's Herbert Sun Clock in Model Engineer

2014-08-15 Thread Jack Aubert
of essential and optional tools. If anybody on this list wants to attempt photo-etching, I will be glad to share my how-to document, which is meant to be used a supplement to Tony's video. Jack Aubert -Original Message- From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of John

RE: Acrylic paint?

2014-08-12 Thread Jack Aubert
and spray paint. With spray paint you have to be careful to make sure that successive layers are compatible. Jack Aubert From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of cerculdestele . Sent: Tuesday, August 12, 2014 10:16 AM To: sundial@uni-koeln.de Subject: Acrylic

RE: The Bill Gottesman stance

2014-05-10 Thread Jack Aubert
Also note that the center of the body runs down more or less through the heels. So the heals (or possibly the insteps) rather than the toes should be lined on the date. Any more precision and we will need 5 minute lines! Jack From: sundial [mailto:sundial-boun...@uni-koeln.de]

RE: Sun tracks

2014-05-06 Thread Jack Aubert
://chezaubert.net/froggy2.jpg The sun tracks are really more of a secondary decoration than the point of the photos. Jack Aubert -Original Message- From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of rmallett Sent: Monday, May 05, 2014 2:42 PM To: Bill Gottesman; John Foad

RE: Algerian Prayer time dial

2013-11-15 Thread Jack Aubert
the beginning of Asr so this line would be the end of Zuhr making the last line the end of Asr, or second Asr. The script along the vertical line is completely beyond me but I am pretty sure there is no Dhur in there. Jack Aubert From: sundial [mailto:sundial-boun...@uni-koeln.de

RE: Algerian Prayer time dial

2013-11-15 Thread Jack Aubert
The second word along the vertical line is almost surely, Zawal, which is the instant when the sun has passed mid-day, and the Zuhr may begin.I cannot make out the first word. Jack From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Kevin Karney Sent: Friday,

RE: Re: Re: Shape of Greek and Roman sundials

2013-10-24 Thread Jack Aubert
speculation that, absent standardized units of measure, Hellenic sundial calculation and construction techniques were probably specified by using triangles and ratios. Jack Aubert From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of nicolasever...@libero.it Sent

RE: News article

2013-09-20 Thread Jack Aubert
. Jack Aubert From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Fred Sawyer Sent: Friday, September 20, 2013 12:19 PM To: Sundial List Cc: Bob Kellogg Subject: News article Congratulations to John Carmichael on being featured in an article in Inside Tucson Business. http

RE: Is there something wrong with this Cassiopeia video?

2013-07-29 Thread Jack Aubert
. The upper and lower limbs of the analemma do correspond to the two solstices, but the crossover point when clock time deviates from solar time is not related to the equinoxes. This appears to have been a plausible (but wrong) guess by somebody. Jack Aubert From: sundial

RE: Sundials in schools

2013-07-26 Thread Jack Aubert
Just don't quit your day job quite yet. Jack Aubert From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Donald Christensen Sent: Thursday, July 25, 2013 7:08 PM To: sundial@uni-koeln.de Subject: Sundials in schools My sundials haven't sold as well as I hoped. In fact

RE: sundial for a blind person

2013-07-03 Thread Jack Aubert
You are right, Mike: Here is a photo of the dial from the report on our Vancouver conference. I don’t recall any write-up or presentation, though. Chuck Nafziger’s light concentration sundial, complete with Braille markings. From: sundial

RE: sundial spotting

2013-06-09 Thread Jack Aubert
lines run together. The crescent may just be something that became locally fashionable in that region of France when the dials were being constructed. I think that is probably a more plausible explanation than looking too deeply for religious symbolism. Jack Aubert From: sundial

RE: Re quicklime

2013-05-14 Thread Jack Aubert
This is all fascinating stuff and I will either impress or bore people with my bogus erudition on the subject. But Is there an easy way to distinguish lime mortar from Portland cement mortar, like with one's thumbnail? In America, the oldest brick buildings on the East Coast are from the

RE: new Italian magazine on line

2013-04-21 Thread Jack Aubert
I would like to subscribe. Will the reborn review only be available on-line for foreign subscribers? If so, we would need an e-mail notification for new issues. Jack Aubert From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of sun.di...@libero.it Sent: Sunday, April 21

RE: Today's Google Banner - More

2013-04-15 Thread Jack Aubert
But why his 306th birthday? What is the significance of 306? Am I missing something obvious? Jack -Original Message- From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Frank King Sent: Monday, April 15, 2013 4:30 AM To: sundial@uni-koeln.de Subject: Today's Google Banner

RE: Art in dialling

2013-04-07 Thread Jack Aubert
The city-direction labels are a nice touch: an old tradition that seems to have fallen into disuse. I hope you can tell us how the concrete (?) bowl was constructed. Jack From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Bill Gottesman Sent: Sunday, April 07, 2013 3:40

RE: Sundials in playgrounds - at last, the tide is turning !

2012-09-15 Thread Jack Aubert
the composer would have to be Philip Glass Jack Aubert -Original Message- From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Martina Addiscott Sent: Friday, September 14, 2012 6:37 AM To: sundial@uni-koeln.de Subject: Sundials in playgrounds - at last, the tide is turning

RE: IMAGES APLENTY

2012-08-28 Thread Jack Aubert
Not in the NASS registry! Does anybody live in South Carolina? From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Fred Sawyer Sent: Tuesday, August 28, 2012 3:23 PM To: Tony Moss Cc: Sundial List Subject: Re: IMAGES APLENTY Tony, There is a large version of that Manship

Re: Tony Moss Email

2012-06-29 Thread Jack Aubert
It looks like the DNS domain lindisun.demon.co.uk has lapsed. Does Tony Moss have a new email address? The t...@lindisun.demon.co.uk address is now reported as Unrouteable. Larry McDavid Sundial Registrar North American Sundial Society ---

RE: Solar Eclipse Sundial

2012-05-21 Thread Jack Aubert
We had one like that when I was living in Morocco. We had driven from Rabat to Casablanca to see it, and were sitting on a terrace drinking beer when it happened. I call them nebular eclipses. Jack -Original Message- From: sundial-boun...@uni-koeln.de

RE: Equinox Derivative: dx/dt Sin x = Cos x

2012-03-25 Thread Jack Aubert
to these things. What is really interesting about this phenomenon is how much the rate of change is affected by latitude. Above the arctic circle, I guess the curve becomes almost discontinuous when you go from a 24 hour day to a 24 hour night. Jack Aubert Falls Church Virginia From

RE: sundial Digest, Vol 72, Issue 11

2011-12-13 Thread Jack Aubert
Eppur se muove! :-) Jack Aubert -Original Message- From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Bill O'Neill Sent: Tuesday, December 13, 2011 7:03 AM To: sundial@uni-koeln.de Subject: Re: sundial Digest, Vol 72, Issue 11 Hi All: Why do people

RE: sundial Digest, Vol 72, Issue 11

2011-12-13 Thread Jack Aubert
Children learn at a fairly young age - at least I did -- that the earth and planets revolve around the sun and we learn to take a God's eye view of the solar system. We see this depicted in hundreds of pictures. Unfortunately, this knowledge, while true, is quite removed from our experience of

RE: Lunar Eclipse of 2011 Dec 10

2011-12-09 Thread Jack Aubert
John, I call that a nebular eclipse, and they are even worse when they are solar! I sat outside and watched a nebular eclipse of the sun in Morocco in 1994. It was quite a disappointment. Jack From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On Behalf Of

RE: THE ANCIENT ISLAMIC SUNDIALS - A new book (in Italian)

2011-12-08 Thread Jack Aubert
Gianni, How can I buy a copy? I would like one. Can you take Pay Pal? Jack From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Gianni Ferrari Sent: Wednesday, December 07, 2011 2:06 PM To: LISTA INGLESE Subject: THE ANCIENT ISLAMIC SUNDIALS - A

RE: Question about the quadrant instrument

2011-10-30 Thread Jack Aubert
the use of letter-number notation in ancient Arabic – similar to Greek notation – and something that will send me on a little research excursion to learn when the decimal place notation and the original “Arabic numerals” arrived in Arabic. Jack Aubert From: sundial-boun...@uni

RE: a reverse sundial for the blind

2011-10-19 Thread Jack Aubert
I have not been able to figure out a plausible way to contort my watch arm so that 12:00 noon faces my body. You lost me at step 1. Jack Aubert -Original Message- From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Will Vaughan Sent: Tuesday, October

RE: Most Valuable Sundial?

2011-07-17 Thread Jack Aubert
Value, schmalue. But it appears to be an interesting object, particularly if it really is an accurate replica of something from the 17th century. Are there more photos of it and an explanation of how it works? At first glance it looks like a skaphe dial made to be transparent by use of a

RE: EoT diagram

2011-06-22 Thread Jack Aubert
By the late 17th century, as clocks became more accurate, clockmakers struggled with the fact that they did not seem to tell true (solar) time. The Mercure de France in 1738 reported that “Many clockmakers find themselves exposed to criticisms of their methods by those who claim that their

RE: A wristwatch

2011-06-10 Thread Jack Aubert
as the Kindle uses for it to be visible in sunlight. It would be way cool and I would love to have one but it would not really be a sundial. In fact, you could run it off a lithium battery instead of sunlight and it would even work work at night. Jack Aubert -Original Message

RE: sundial /Jacopo de'Benci

2011-06-03 Thread Jack Aubert
Yes, it is clearly meant for a polar axis gnomon. The hour lines are symmetrical with 6 and 6 crossing at the root of the gnomon so it is meant to be directly south-facing. However the hour angle lines do not appear to be accurate for any latitude. Iif you measure the hour angles and try to

RE: sundial /Jacopo de'Benci

2011-05-31 Thread Jack Aubert
I am reposting this message that for some reason exceeded the size limit: Yes, it is clearly meant for a polar axis gnomon. The hour lines are symmetrical with 6 and 6 crossing at the root of the gnomon so it is meant to be directly south-facing. However the hour angle lines do not

RE: [UK interest only] Sundial for Sale £245,000

2011-05-29 Thread Jack Aubert
My reaction was: A pub with a sundial and something called a “pothole” complete with winch to lower you into it! Is a pothole full of ale? Wow. The UK does it again! Jack From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Richard Mallett

RE: part 2 of longitude correction

2011-02-13 Thread Jack Aubert
This has all been very instructive. I am not a complete beginner, but have to confess that I was under the impression that rotating the dial plate with respect to the fixed gnomon was sufficient. Somebody once told me I could do this and I never really thought about it. If you actually think

RE: New Stained Glass Sundial- Finished!

2011-01-30 Thread Jack Aubert
Beautiful! Particularly the traditional fly. From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On Behalf Of John Carmichael Sent: Saturday, January 29, 2011 2:50 PM To: sund...@rrz.uni-koeln.de Cc: Glass List Subject: New Stained Glass Sundial- Finished! Hello

RE: New BSS website

2010-11-05 Thread Jack Aubert
Very nice! Congratulations. A clean, uncluttered elegant look. I see that the list of topics in the left-hand column is alphabetized. You might think about re-ordering them by some other criterion like general-to-specific. This way, you could put some things like Tony's how sundials work and

RE: Sundials/BHI

2010-06-13 Thread Jack Aubert
analemmatic dials engraved in sandstone suitable for use in a private setting where the gnomon can be put away and/or replaced. Are you engraving in metal? Stone? Jack Aubert From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Douglas Bateman

RE: how italian hours

2010-03-29 Thread Jack Aubert
I have been thinking the same thing. That slate dial is strikingly beautiful and I like the idea of using a completely different type of hour that does have to offer any excuses for not being the same as what is on one's watch. Frank King's narrative write up answered one of my questions. I had

RE: DST Misconceptions

2010-03-14 Thread Jack Aubert
How about the misconception that it saves energy. I have never seen any serious scientific study that supports that theory which is implausible given energy use patterns in the 21st century. Jack From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On Behalf Of John

RE: dalemain stolen dial

2009-11-21 Thread Jack Aubert
Such a shame that we cannot have sundials inside. What we need is for somebody to develop a motor-driven, geared apparatus that will move an electric through a path that picks up all the relevant celestial motions. Jack -Original Message- From: sundial-boun...@uni-koeln.de

RE: Analemma origins.

2009-11-15 Thread Jack Aubert
. Jack Aubert wrote: I recently revised my notes for a sundial talk I was giving which included a section on the EOT, and its connection with the traditional figure 8 analemma. I wanted to explain its origin, or at least be able to answer the question if asked, but have not been able to find

Origin of the Analemma figure?

2009-11-14 Thread Jack Aubert
I recently revised my notes for a sundial talk I was giving which included a section on the EOT, and its connection with the traditional figure 8 analemma. I wanted to explain its origin, or at least be able to answer the question if asked, but have not been able to find any believable

RE: New Sundial Sculptures Website

2009-07-06 Thread Jack Aubert
Hi John, The site looks really beautiful. Congratulations to you and to your webmaster. I wouldn't worry about the Google translator moving the layout. I checked several of the languages I can read and the translations are all very sketchy anyway: You can understand the meaning

RE: Translations

2009-06-16 Thread Jack Aubert
knowledge. But so far, the only way to get a real translation is to run it through a human brain. Machine translation may eventually be a reality, but not until they perfect artificial intelligence. Learn more languages! There is always time for one more. Jack Aubert -Original Message

RE: sundial Digest, Vol 38, Issue 18

2009-02-28 Thread Jack Aubert
First of all, it is not very civil to start up a political argument on a list like this. Second, the sentiment you are reacting to is simply a tag-line presumably attached to all messages sent by Yan Seiner. Reacting to it is like picking a fight with somebody who pulls into a parking lot

RE: David Shayt

2008-11-12 Thread Jack Aubert
David Shayt's obituary ran today in the Washington Post: http://www.washingtonpost.com/wp-dyn/content/article/2008/11/11/AR200802 483.html?sub=AR Jack -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fred Sawyer Sent: Wednesday, November 12, 2008

RE: Missouri Ottoman Sundial

2008-08-15 Thread Jack Aubert
Missouri. Jack Aubert. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roger Bailey Sent: Wednesday, August 13, 2008 5:47 PM To: Sundial Mailing List Subject: Missouri Ottoman Sundial The Sundial Tour for the NASS conference in St Louis Missouri visited the Missouri

Azimuth of Sunrise - Sunset

2007-12-24 Thread Jack Aubert
Thank you all for the answer(s) to this little problem and for the bread-crumb trail to try to retrace the derivation. My original question was sparked by wondering about the maximum deviation from east-west at the solstice(s) so I could display my erudition and bore people with comments

Re: Winter Solstice at Newgrange, Ireland

2007-12-23 Thread Jack Aubert
I have been half-heartedly attempting -- with my shaky grasp of trigonometry -- to figure out where the sun rises and sets at the Solstices. One should, I think, be able to read this directly off the face of a sundial, given the time of sunrise/sunset on the solstice. I found a web site with

Re: computer program that prints out Hour Line angles

2007-07-30 Thread Jack Aubert
There are four or five programs each with its own strengths. Personally, I found François Blateyron's Shadows program to be very useful because he has an option to print out Cartesian coordinates of the lines in tabular form. Rather than using actual angle values, which are somewhat difficult

RE: Plaster Wall Sundials?

2007-05-29 Thread Jack Aubert
My first thought was that it was a trompe l'oeil, but I examined the shadows and they seem to be cast exactly as they would at the time indicated by the gnomon. On looking again, however, it does seem that some of the same imperfections in the background continue on through to the dial face.

RE: Programs

2007-02-07 Thread Jack Aubert
Brad, The domain (and web site) is owned by David Bell. Jack At 03:00 PM 2/6/2007, you wrote: Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary=_=_NextPart_001_01C74A29.6E83B240 Bob: it turns out the programs are still on the site and that

Stained Glass

2006-09-12 Thread Jack Aubert
John, In your work with stained glass, have you found it possible to do anything useful or interesting using colored glass to project tinted shadows? I know that sunlight coming into a church through a stained glass window can project colored images on the floor. But from what I have been able

Just testing MailMan

2006-01-17 Thread Jack Aubert
I followed the instructions, and supplied my name and a password. Mailman replied in German, which I can understand a little but not really enough to know if I was accepted or bounced so I am trying this post to see. Jack --

Sandstone dial technique

2005-09-04 Thread Jack Aubert
I am about to attempt a dial using the technique you demonstrated several years ago at the Tuscon conference. I know I have to glue the paper sheet onto the stone and end up sealing it in urethane but can't find your instructions and don't remember the sequence. Do I seal the stone first

Re: vocabulary

2005-09-03 Thread Jack Aubert
Salut François, I think you might want to use something based on the word layout like layout drawing or layout markings or layout lines for épure in this context. My Robert Collins doesn't have the adjective layout but I think it would be the best choice in this context. I don't think folded

Re: Magnetic Gnomon Attachment

2005-02-24 Thread Jack Aubert
drive. You have to be careful because can smash your fingers playing with them. Jack At 02:47 PM 2/1/2005, tony moss wrote: John Carmichael commented; Anyway, I've been thinking that for some future project, that it would be possible to attach the gnomon to the SGS using a magnet.

Re: Place de la Concorde

2003-09-23 Thread Jack Aubert
Maybe it's a message from the RATP with just a few letters wrong. It actually should say: Au levant, du Barbès (on) surgit à Paris Nord But seriously, I did forward this query to a French History mailing list I subscribe to and am waiting for some response from there. (All the history Professors

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