Re: [SPAM] Largest stone sundial?

2023-08-09 Thread Willy Leenders
Dan-George, The earth globe itself. Willy Leenders Hasselt Belgium > Op 9 aug. 2023, om 12:30 heeft Dan-George Uza het > volgende geschreven: > > Hello, > > Does anybody know what the largest one-piece stone sundial in the world is? > > Thanks, >

Re: Does this type of dial have a name?

2021-08-16 Thread Willy Leenders
representation of the equation of time also corresponds to that Greek name. Hence the confusion. An analemmatic sundial has nothing to do with the graphical representation of the equation of time. Willy Leenders Flanders in Belgium. > Op 16 aug. 2021, om 11:44 heeft John Davis via sundial &g

Re: Analemmatic sundial

2021-07-26 Thread Willy Leenders
http://www.wijzerweb.be/hasselt010A.html Willy Leenders Hasselt Flanders Belgium > Op 26 jul. 2021, om 10:59 heeft David Andersson > het volgende geschreven: > > In message > > Donald Christensen wrote: > >> I want to offer to design a sundial

combination of vertical sundial and a noon sundial

2020-05-19 Thread Willy Leenders
This sundial (see picture) is a successful combination of a regular vertical sundial and a noon sundial with analemma. I found the photo somewhere on the internet. Does anyone know where it can be seen in reality? Willy Leenders Hasselt in Flanders (Belgium

Re: Can anyone help me to contact Paul Ratto ?

2019-12-31 Thread Willy Leenders
of the sun. For all kinds of other (mostly unnatural and artificial) time displays, we have plenty of other instruments: wristwatch, tower clock, computer, telephone, etc. Willy Leenders Hasselt in Flanders (Belgium) > Op 31 dec. 2019, om 13:55 heeft Frank King het volgende > gesc

Re:

2019-05-06 Thread Willy Leenders
ANALEMMA is a word from the Greek language. It is composed of ANA and LEMMA. This means "taken from above”. In other words "top view" or "vertical projection”. The ellipse of an analemmatic sundial is therefore the vertical projection of an equatorial sundial. Willy Leenders

Re: Historic sundials

2019-03-20 Thread Willy Leenders
g)001A.html> (English) Willy Leenders > Op 20 mrt. 2019, om 17:39 heeft Dan-George Uza het > volgende geschreven: > > Hello! > > If you were to make a presentation addressed mainly to schoolchildren or > early college about some important historic sundials, which ones would

Re:

2019-03-05 Thread Willy Leenders
does not hold. Sometimes there are 12 divisions and sometimes 10. Excuse for my clumsy English. Willy Leenders Flanders in Belgium > Op 4 mrt. 2019, om 14:04 heeft Mario Arnaldi via sundial > het volgende geschreven: > > Diese Nachricht wurde eingewickelt um DMARC-kompatibel

Re: Article about Armenian sundials

2019-03-02 Thread Willy Leenders
The Armenian sundials are more a building ornament than an instrument to measure the time. The sundial scene is divided into 20 or 24 parts at equal angles (ie of 18 or 15 degrees). The shadow of a gnomon will indicate different time periods depending on the date. Willy Leenders Hasselt

Re: Frank King

2019-02-21 Thread Willy Leenders
e angle of the gnomon has to be adjusted for this but the position of the hour lines. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 21 feb

Re: EU backs ending Daylight Saving Time

2018-08-31 Thread Willy Leenders
An annoying typing error 'real moon' must be 'real noon' Willy Leenders Op 31-aug-2018, om 20:01 heeft Willy Leenders het volgende geschreven: > When commission president Jean-Claude Juncker gets right, the entire mainland > of Western Europe (except Portugal) gets throughout the whol

Re: EU backs ending Daylight Saving Time

2018-08-31 Thread Willy Leenders
by designing sundials that do not indicate the true local time but the unnatural clock time. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be

other meridian lines in Flanders

2018-07-01 Thread Willy Leenders
meters length the longest uninterrupted meridian line in the world.) http://www.wijzerweb.be/fromsundialtosundial.html http://www.wijzerweb.be/sinttruiden006A.html Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders

Re: Meridian line in Brussels

2018-06-30 Thread Willy Leenders
. The appendix, however, only went to Dan-George Uza because it is 504 Kb and that is more than the admitted 290 Kb. Those who want to receive the attachment must ask me. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials

Re: Meridian line in Brussels

2018-06-30 Thread Willy Leenders
. But that will take me some time. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 30-jun-2018, om 15:35 heeft Dan-George Uza het

Re: Summer Solstice in Florence

2018-06-07 Thread Willy Leenders
. The inner circle indicates the right place, the outer circumference corresponds to the circumference of the light spot on that moment Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about

Re: Blank subject line

2018-05-22 Thread Willy Leenders
Why that suspicion? The mention of a subject does not guarantee reliability and the absence of a subject is not a sign of unreliability. Willy Leenders Op 22-mei-2018, om 17:00 heeft Eric Daled het volgende geschreven: > And I agree also : I always delete such messages. >

Re: The Palace Sundial

2018-04-10 Thread Willy Leenders
The queen makes no except. I do not want to give them the food (an expression in my language), all the owners of sundials who have been misplaced. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth

The utility of sundials today.

2018-01-14 Thread Willy Leenders
When I talk about sundials, I get the question: "What utility can sundials have today?" In order to be able to give an answer as diverse as possible, I would like to receive your answer to this question Willy Leenders Hasselt in Flanders (Belgium) Visit my website about th

my sundial wish for the new year

2017-12-31 Thread Willy Leenders
Because the Excel program exceeds the limit of 290 KB it is to download in this webpagina: http://www.wijzerweb.be/everlastingsundial.html Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing

From sundial to sundial along a meridian to Cistercian abbeys

2017-11-23 Thread Willy Leenders
found on my website on page http://www.wijzerweb.be/fromsundialtosundial.html Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerw

Re: Zenith angles and hours to sunset

2017-11-08 Thread Willy Leenders
Hello Steve, Based on your discovery and to prove that from the vernal equinox to the autumnal equinox for a certain time to sunset the sun altitude is approximately equal, I made calculations and a graph showing that this is the case for 1, 2, 3 and 4 hours to sunset. Willy Leenders Hasselt

AGAIN Re: Sundial books for children

2017-11-05 Thread Willy Leenders
Always teach children from the beginning that they should stand on the centerline of 'the calendar' of an analemmatic sundial and not on the month like most of the images on this website! Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province

Re: Sundial books for children

2017-11-05 Thread Willy Leenders
Always teach children from the beginning that they should stand on the centerline of 'the calendar' of an analemmatic sundial and not on the month like most of the images on this website! Willy LeendersHasselt in Flanders (Belgium)Visit my website about the sundials in the province of Limburg

Fwd: bellows sundial 1

2017-10-05 Thread Willy Leenders
Fabio, why the number of small lines at the hour lines increases from right to left? Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be

Can anyone translate ?

2017-09-23 Thread Willy Leenders
Can anyone translate the Greek text on the sundial attached here? Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be

Re: a strange sundial

2017-08-20 Thread Willy Leenders
enough. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be The answer of the artist: It was my brother

a strange sundial

2017-08-17 Thread Willy Leenders
anyone can explain these oddities? Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be

Re: sunflower

2017-06-05 Thread Willy Leenders
Fabio, You hereby give a striking illustration of my life motto since I'm retired: "Find solutions that nobody asks for problems nobody has." Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'wor

Re: An interesting piece of timekeeping

2017-01-17 Thread Willy Leenders
directly the solar time? Simplex veri sigillum. (Simplicity is the hallmark of true) Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 17

Re: Terms to describe markings on dials (or other objects)

2016-10-28 Thread Willy Leenders
In my language (Dutch) it is "een bobbel". The translation of my dictionary in English: 'blob', 'bulge' or 'lump'. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundial

Re: Solar Declination

2016-10-25 Thread Willy Leenders
As for me because it is a Windows program that does not work on my Mac cmputer. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be

Re: R: Re: Double analemma dials

2016-08-17 Thread Willy Leenders
to practical reasons, we have a watch and many other devices. Tell the people that our watch gains or loses compared to the real natural time and that a sundial indicates this natural time, a watch the artificial time. And use your knowledge of mathematics for more useful purposes! Willy Leenders

Re: R: Double analemma dials

2016-08-16 Thread Willy Leenders
Fabio, The misconception you justifiably complained was already in use when sundial illiterates added a analemma loop to the oldest known analemmatic sundial in Bourg-en-Bresse (France) at the monastery of Brou. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about

Re: Using analemmatic sundials for determining sun exposure times

2016-06-14 Thread Willy Leenders
Geoff, If you measure the time in true local time (solar time), as I do, the EoT is not relevant. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http

Re: Using analemmatic sundials for determining sun exposure times

2016-06-14 Thread Willy Leenders
See on my website: http://www.wijzerweb.be/analemmatischengels.html The maximum time (12 hours) of sunlight on a vertical wall of any direction is above the Arctic Circle on a day when the midnight sun shines Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials

Re: Looking for a sundial 'twin': wide gnomon spider - second try with smaller photo

2016-05-23 Thread Willy Leenders
the Dutch text I suppose. Willy Leenders Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 23-mei-2016, om 19:54 heeft Helmut

AGAIN Re: Sundials near the Equator

2016-03-24 Thread Willy Leenders
This is an equatorial sundial in Singapore, near the equator. It looks like a climbing frame for children in a playground but it is a sundial. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing

Re: A Happy Leap Year Day to everyone

2016-02-24 Thread Willy Leenders
Frank, Why have you sent your wishes for a Happy Leap Year Day on February 24 ? Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be

Re: Sundials in museums

2016-01-22 Thread Willy Leenders
Darek, You have forgotten the the Deutsches Museum in München. There is a sundial garden on a 5th floor outside terrace, which is a showcase of all possible - modern - types. Reported by Frans Maes on january 11. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials

Sundials at the Musée de la Vie Wallonne in Liège (Belgium)

2016-01-03 Thread Willy Leenders
, click once on the photo to see a picture in a fairly large resolution. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be

Re: No decision on future of leap seconds

2015-11-23 Thread Willy Leenders
Wolfgang, You put improper questions. The only correct sundial is a sundial that indicates the local time. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch

Re: Southern Hemisphere

2015-11-16 Thread Willy Leenders
Phil, A sundial on the equator (whose style is horizontal) certainly works. As an example, a photograph of a sundial in Singapore, near the equator. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth

Re: Southern Hemisphere

2015-11-16 Thread Willy Leenders
Phil, A sundial on the equator (whose style is horizontal) certainly works. As an example, a photograph of a sundial in Singapore, near the equator. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth

Re: Analemmatic Sundial Question

2015-10-15 Thread Willy Leenders
in the time which is indicated in the neighbourhood of 6 o'clock thereby is a few minutes. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http

Re: Romanian reclining sundial

2015-10-02 Thread Willy Leenders
correction you could also determine the true local time 2. To indicate the standard Eastern European Time you have many options: clock, cell phone, computer ... There's no need to a sundial. Indicating the true local time is only possible on a sundial. Let him do it ! Willy Leenders Hasselt

Re: Romanian reclining sundial

2015-10-02 Thread Willy Leenders
Instead of a Latin motto that almost no one understands, write on the sundial: A watch will give you an artificial time. This sundial gives you the true local and natural time. At 12 o'clock it is again the middle of the day. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about

Re: Romanian reclining sundial

2015-10-01 Thread Willy Leenders
A nice project for the decoration of the roof ! However, it is not possible to read the true local time. And one can not deduce it for the place at longitude: 24° 30′ 3.82′′ E (Bistrita) with only the table for EOTas a tool. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about

Re: Analemmatic sundial question

2015-07-01 Thread Willy Leenders
indicates preferably the solar time - on the pictures and movies the children go stand on the month and not on the center line at the height of the date Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth

Sundial in Huacalera in Argentina

2015-06-05 Thread Willy Leenders
Near Huacalera in Argentina is the sundial shown below near the Tropic of Capricorn. Does anyone know how this sundial works? Willy Leenders Hasselt in Flandern (Belgium) --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: Fer de Vries passed away

2015-04-08 Thread Willy Leenders
thoughts go to his family and to his colleagues at the Sundial Association in the Netherlands. Willy Leenders Flanders in Belgium Op 7-apr-2015, om 22:27 heeft Frans W. Maes het volgende geschreven: Dear all, I deeply regret to inform you that Fer de Vries, honorary member of the Dutch

Re: summer house / sundial

2015-01-03 Thread Willy Leenders
the fair entertainment of a rotating sundial which shows permanently a heart but no time indication ! Willy Leenders Hasselt in Flanders (Belgium) Very cute!. If the room rotated to follow the sun's azimuth daily, the heart would be present much of the day, and would lengthen towards mid

Re: summer house / sundial

2015-01-03 Thread Willy Leenders
latitude). Therefore, I chose a north-south orientation. Willy Leenders Op 3-jan-2015, om 14:46 heeft Mario Arnaldi het volgende geschreven: So Willy, you must find the best hour for lovers. Are you sure that midday is the best time for them? Can I suggest you in the evening (middle afternoon

summer house / sundial

2015-01-01 Thread Willy Leenders
I designed a romantic summer house / sundial and I like to hear your comments. See: http://www.wijzerweb.be/zeshoekprieeltje%28eng%29001A.html Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing

Re: AW: Switzerland

2014-10-23 Thread Willy Leenders
Op 23-okt-2014, om 20:40 heeft Reinhold Kriegler het volgende geschreven: Caro Fabio! This is a great idea and it really deserves to be supported! The Sundial catalogue was written 20 years ago by Hugo Philipp and Daniel Roth and Willy Bachmann Sonnenuhren Deutschland und

meridian line

2013-12-19 Thread Willy Leenders
? The méridienne verte' in France I call a interrupted meridian line. For pictures see here: http://nl.wikipedia.org/wiki/Kruidentuin_Herkenrode and http://www.wijzerweb.be/hasselt010C.html Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg

Taipei 101 no gnomon for a sundial

2013-12-12 Thread Willy Leenders
on the Dutch Wikipedia, I made ​​it clear in a drawing on a satellite picture how a sundial with the building as a gnomon would look like. http://www.wijzerweb.be/Taipei.html I invite you to continue my action in your language area. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about

Re: 08:09:10 11/12/13

2013-11-12 Thread Willy Leenders
You can also come to Europe, Bill. In my country, 11/12/13 is the eleventh day of December 2013 Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http

Re: Information wanted, on 'badly designed' public sundials

2013-10-25 Thread Willy Leenders
I am surprised that this construction is allowed in UK while there are safety rules that prohibit a sundial on a playground even though all parts are on the ground level. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders

Re: Sundial in BBC series

2013-08-19 Thread Willy Leenders
. In Dutch: http://www.wijzerweb.be/egypte.html In English: http://www.wijzerweb.be/egypteengels.html Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http

Re: Astronomical monuments?

2013-07-03 Thread Willy Leenders
Read the e-book (free) at http://issuu.com/starlightinitiative/docs/astronomy-and-world-heritage_thematic-study Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch

Re: a 3d printer printed sundial

2013-07-03 Thread Willy Leenders
- of the hour lines in an eastern and western half, separated by a space as wide as the thickness of the style. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http

Re: Egyptian sundials

2013-04-27 Thread Willy Leenders
calculations. See http://www.wijzerweb.be/egypteengels.html Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 27-apr-2013, om 17:25 heeft

Re: Arnold Zenkert +

2013-04-14 Thread Willy Leenders
is the daughter of time) In other words who knows the time, he knows the truth Very applicable to Arnold Zenker Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders in Belgium) with a section 'worth knowing about sundials' (mostly

Re: sundials collection in Nuremberg

2013-04-02 Thread Willy Leenders
See http://www.sonnenuhrenweg-nuernberg.de/ Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 2-apr-2013, om 13:36 heeft prze

Re: Sundials of castel parks

2013-04-02 Thread Willy Leenders
The most famous park with sundials in Flanders (Belgium) is the sundial park in Genk. See http://www.fransmaes.nl/genk/welcome-e.htm Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about

Re: Shadow Question

2013-03-29 Thread Willy Leenders
No answer but an anecdote. When my son was 3 years old, he walked very proudly with a stick as walkers do with a cane. After some time he came running towards me. He had seen the shadow of the stick and told me weeping: another stick always comes to mine Willy Leenders Hasselt in Flanders

Re: where this note refers to

2013-01-29 Thread Willy Leenders
David, I don't understand your remark / question. Can you reformulate? Willy Leenders Hasselt in Flanders (Belgium) Op 29-jan-2013, om 11:37 heeft da...@davidbrownsundials.com het volgende geschreven: Surely allowance has to be made for any noon gap that is included on the dial? David

Re: Analemmatic sundial

2013-01-13 Thread Willy Leenders
and the equatorial sundial are the same. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 13-jan-2013, om 19:09 heeft Simon

Re: Analemmatic sundial

2013-01-11 Thread Willy Leenders
Donald, A nice idea. If you want to display the progress of the shadow from morning to evening, the movement must be in clockwise and not the rverse as in the animated image. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders

Re: Analemmatic sundial

2013-01-11 Thread Willy Leenders
My comment is valid only for the northern hemisphere Willy Leenders Hasselt in Flanders (Belgium) Op 11-jan-2013, om 11:20 heeft Willy Leenders het volgende geschreven: Donald, A nice idea. If you want to display the progress of the shadow from morning to evening

Re: Construction of a vertical declining sundial

2012-11-15 Thread Willy Leenders
See the sundial I let construct. http://www.wijzerweb.be/voeren002A.html He is of stainless steel. The steel is roughened because on glossy material (the extreme is a mirror) you see no shadow. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province

Re: Bexhil on Sea dial

2012-11-10 Thread Willy Leenders
The picture Frank sent shows again that visitors of a analemmatic sundial stand on the date indicator instead of on the centerline according to the date. Who finds an effective way to prevent this? Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province

Re: Interactive Science: The Human Sundial | Scholastic.com

2012-10-12 Thread Willy Leenders
on the north-south line) changes through the seasons and so how they learn by experience about the calendar of the analemmatic sundial? Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about

Re: analemmatic sundial on a slope

2012-09-08 Thread Willy Leenders
On the website of Frans Maes at http://www.fransmaes.nl/zonnewijzers/welcome-e.htm (go to analemmatic - extra info) you will find a simple explanation of the derivation of an analemmatic sundial from an equatorial sundial. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about

Re: What is the deal with this dial?

2012-09-05 Thread Willy Leenders
It could be an indication for equal hours in the morning and unequal hours (antique hours) in the afternoon: the fifth hour ... the fourth hour ... the third hour (of the day since sunrise) etc. The placement of the hour lines and of the style are, however, not correct. Willy Leenders Hasselt

sundial and the New Oxford American Dictionary

2012-08-20 Thread Willy Leenders
There isforsundial expertsstill work to be done to teach people how a sundial should look. Here is how theNew Oxford American Dictionary(digital version on my computer)shows a sundial. Even for the hourzero, there is an indication. Willy LeendersHasselt in Flanders (Belgium)Visit my website about

Re: Sundial on Mars

2012-08-10 Thread Willy Leenders
David, On http://wtvr.com/2012/08/03/nasa-mars-rover-curiosity-will-land-early-monday/ you can read that de 'sundial' is not used to have information to calculate time of day, date, and seasons but as an appliance to color balance the photgraphies Curiosity made. Willy Leenders Hasselt

Re: Tony Moss Email

2012-07-30 Thread Willy Leenders
the adress of Tony Moss is: tonylindi...@talktalk.net Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 30-jul-2012, om 17:51

Re: a way to determine the period of insolation of a wall, using an analemmatic sundial

2012-07-03 Thread Willy Leenders
, - in Bedum, 9 km north of Groningen (Netherlands) - in Marxen, 18 km south of Hamburg (Germany) -near the motorway junction of the A41 and the M53, 12 km south of Liverpool (Great Britain) - in the north of Lake Winnipeg in Canada. Willy Leenders Hasselt in Flanders (Belgium) Visit my website

Re: a way to determine the period of insolation of a wall, using an analemmatic sundial

2012-07-02 Thread Willy Leenders
right. Never and nowhere a vertical wall can receive sunlight over a longer period of time in a day. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http

Re: a way to determine the period of insolation of a wall, using an analemmatic sundial

2012-07-02 Thread Willy Leenders
:00 to 6:43 = 6:43 hours and from 17:17 to 24:00 = 6:43 hours = a total insolation period of 13:26 You're right. Never and nowhere a vertical wall can receive sunlight over a longer period of time in a day. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials

a way to determine the period of insolation of a wall, using an analemmatic sundial

2012-07-01 Thread Willy Leenders
translation and put them on my website at this address: http://www.wijzerweb.be/analemmatischengels.html The full page about analemmatic sundials, although in Dutch, you'll find at this address: http://www.wijzerweb.be/analemmatisch.html Willy Leenders Hasselt in Flanders (Belgium) Visit my website

Re: The tree of Sonius

2012-02-15 Thread Willy Leenders
Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 15-feb-2012, om 10:07 heeft R Wall ML emails het volgende geschreven: Hi all

Re: Equinoctial vs. Equatorial

2012-02-14 Thread Willy Leenders
in an armirally sphere. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 14-feb-2012, om 15:49 heeft J. Tallman het volgende

Re: Equinoctial vs. Equatorial

2012-02-14 Thread Willy Leenders
In my precedent mail Sundials where showing these unequal hours. must be Sundials were showing these unequal hours. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly

oldest known sundial in Flanders

2012-02-09 Thread Willy Leenders
are now available in the Atlas of Sundials at www.sundialatlas.eu/atlas.php?so=BE38 More comments and pictures in Dutch at http://www.wijzerweb.be/rubenshuis.html Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section

Re: 2 questions: declination animation

2012-01-11 Thread Willy Leenders
of the corresponding hour line angle with the 12 o'cloCk hour line phi = latitude D = orientation of the sundial (gnomùonic declination) Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials

Re: solar time calculator

2011-10-14 Thread Willy Leenders
Donald,If it is onlyyour intentionto useasundialtofindthe north, itsuffices tocombinetwodials,apolestylesundialandaanalemmaticsundial.Directthat combinationsothat bothsundialsshow the same time.Than they standdirectedto thenorth.See drawing.Willy LeendersHasselt in Flanders (Belgium)Visit my

sundials of the Wilanów Palace (Warsaw - Poland)

2011-09-28 Thread Willy Leenders
are interchanged. Is my observation correct? For a picture (click to enlarge) see http://upload.wikimedia.org/wikipedia/commons/b/b1/Warsaw_Wilanow_Palace_sundial.jpg Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders

Re: Please may we have our sundial mailing list back

2011-08-14 Thread Willy Leenders
I agree, Geoff. Willy Leenders Hasselt in Flanders (Belgium) Op 14-aug-2011, om 11:43 heeft Geoffrey Thurston het volgende geschreven: I have been an avid reader of and an occasional contributor to this list for many years but I am concerned about its present state of health. It has

Re: analemmatic sundial

2011-08-08 Thread Willy Leenders
See on my website http://www.wijzerweb.be/hasselt010A.html Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 8-aug-2011, om 06

Re: special events

2011-07-28 Thread Willy Leenders
No, it is 31°44' N See Wikipedia Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 28-jul-2011, om 14:06 heeft karon het

Re: Success!!

2011-07-27 Thread Willy Leenders
is Dutch but the images speak for themselves. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 26-jul-2011, om 23:22 heeft karon

Re: Longitudinal shift?

2011-07-27 Thread Willy Leenders
, 85° W) the correction for Daylight Saving Time is: rotation of the hour line 12 - 11,79° 13 - 11,61° 14 - 12,54° 15 - 14, 87° 16 - 19,11° etc. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing

Re: Shadows

2011-07-25 Thread Willy Leenders
time into a standard time clock. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about sundials' (mostly in Dutch): http://www.wijzerweb.be Op 25-jul-2011, om 21:47 heeft karon het volgende

Re: Shadows

2011-07-25 Thread Willy Leenders
Karopn I have the impression that you have not understood my message. Make a sundial for solar time That means, when the sun is in the south the sundial indicates 12:00 am All your questions then are irrelevant for the construction of the sundial. Willy Leenders Hasselt in Flanders (Belgium

Re: 360 degree clock

2011-07-14 Thread Willy Leenders
is directly on the head of the people standing there (at the zenith). At the photograph (taken on May 28, 2003) it is a few minutes after 16 hours (solar time in Maaseik). The sun is at its zenith in the Atlantic, northeast of the Caribbean. Willy Leenders Hasselt in Flanders (Belgium) Visit my

Re: 360 degree clock

2011-07-14 Thread Willy Leenders
Hi John, What a horrible system for timekeeping! It alienates us, further than standard time does, from our natural time, solar time. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials in the province of Limburg (Flanders) with a section 'worth knowing about

Re: School analemmatic sundial

2011-06-28 Thread Willy Leenders
! The sundial is the only simple instrument that indicates solar time. Changing it to indicate standard time is similar to an astronomer who turns his device to indicate the sidereal time into a standard time clock. Willy Leenders Hasselt in Flanders (Belgium) Visit my website about the sundials

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