Re: portable sundial

Thanks for the info. Do you know where I can find the mathematical calculations? I'd like to make one Cheers Donald Christensen 0467 332 227 If you focus on what you lack, you'll lose what you have. If you focus on what you have, you gain what you lack. On Sun, Sep 29, 2024 at 3:2

portable sundial

time, a beam of light showed through a hole in the ring. There were groves on the inside of the ring. Time was read by inspecting wherever the beam of light touched one of these grooves. The ring would hang from a string. Does anyone have any information about this sundial? Cheers Donald

Re: analemmatic sundial

Thank you. I forgot to specify that it needs to be able to run on osx On Mon, May 1, 2023 at 4:00 PM Kurt Niel wrote: > Hi Donald, > > www.helson.at > > A very supportive SW with a lot of different types of sundials! > > Kurt > > Donald Christensen schrieb a

analemmatic sundial

I’m looking for a program to calculate an analemmatic sundial. Can anybody help? Cheers Donald Christensen 0467 332 227 If you focus on what you lack, you'll lose what you have. If you focus on what you have, you gain what you lack. ---

Analemmatic sundial

lease send me human sundial photos in gardens. The more beautiful the garden the better. Cheers Donald Christensen 0467 332 227 If you focus on results, you will never change. If you focus on change, you will get results. --- https://lists.un

happy new year

Our calendar. https://www.youtube.com/watch?v=WZXnSF-hO-A Cheers Donald Christensen 0467 332 227 If you focus on results, you will never change. If you focus on change, you will get results. --- https://lists.uni-koeln.de/mailman/listinfo

Calendar history moon Gregorian Julian

https://www.youtube.com/watch?v=mk4n7XWsY_4 Cheers Donald Christensen 0467 332 227 If you focus on results, you will never change. If you focus on change, you will get results. --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: Permanent DST

heers Donald Christensen 0423 102 090 If you focus on results, you will never change. If you focus on change, you will get results. On Sun, Nov 20, 2016 at 9:40 AM, John Pickard wrote: > Good morning from sunny Sydney, > > If you think that Europe has a problem with DST, you should

Re: How wrong is your time zone: Map shows how far world clocks are from solar time

I love that time zone map! does anyone know where I can download the jpeg file? Cheers Donald Christensen 0423 102 090 www.fotoresumes.com <http://www.fotoresumes.com> This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and noti

Re: Can I share Universal Analemmatic Sundial image?

You can have my movies if they would be any help https://www.youtube.com/watch?v=oNMxIbrVCVw https://www.youtube.com/watch?v=eSPX5sjVYBc Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com This e-mail is privileged and confidential. If you are not the intended recipient please

Re: Deltacad

e and makes the table into a Deltacad drawing. Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Un-authorized use of this email is subject to penalty o

Deltacad

For years I have been using Autocad. I now want to start Deltacad and in particular writing macros. I need an example of a macro that will read from a .csv file Does anyone know where I can get such an example? Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com This e-mail is

Re: Deltacad

I'm running windows 7 Can I set deltacad to remember a certain directory? Or will it simply remember the last one? Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com This e-mail is privileged and confidential. If you are not the intended recipient please delete the messag

Deltacad

I have just installed Deltacad and am learning how to use it. One question that I have is: How do I change the default directory? I want Deltacad to always look in and save to d:\d deltacad Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com This e-mail is privileged and

Re: sundials in schools

ndial 4. rotate it until it shows the correct solar time 5. Solar time can be found by setting your watch to the time on this website. Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com This e-mail is privileged and confidential. If you are not the intended recipient please del

sundials in schools

e day of the year it is. You then rotate the sundial until it is the correct time on your watch. Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sende

Re: A world map of the discrepancy between civil and solar time.

be in the mood until he's on his way to work! Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Un-authorizeduse of this email is subject to pena

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

t way. I imagine the hour markers were going to be at least 300 mm tall Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Un-authorizeduse of this

Re: Arabic Numerals

20for%20learning/media/14424328-0873-4f35-a8b6-606fb18fdb1b/640-size-painting%20a%20number%20stencil%20part%202.jpg Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com On Thu, Aug 22, 2013 at 11:41 PM, Gianni Ferrari wrote: > Bob and Simon (and others who are interested)

sloping analemmatic sundial

charge. If you want one or know of someone that would be interest, please contact me. http://content.screencast.com/users/dchristensen777/folders/sundials%20for%20learning/media/b99413f6-82a1-499f-9f7d-9e7c0c5a63d6/DSCF2538.JPG Cheers Donald Christensen 0423 102 090 www.sundials

Re: Sundials in schools

about 80% certain that my sloping sundial will work. I need to talk to a surveyor to work out how to communicate/describe the slope and how to tell people how they can construct it off my dimensions. I will design a sloping sundial at no cost Donald Cheers Donald Christensen 0423 102 090 www.s

Apology

r throat) are a great patients exerciser Cheers Donald Christensen 0423 102 090 www.sundialsforlearning.com --- https://lists.uni-koeln.de/mailman/listinfo/sundial

Sundials in schools

by the children. What is your opinion? I don't have photos of children on my website. I don't have any because I haven't sold any. I tried to give some sundials away but can't. I'm a terrible salesman and sound more like a telemarketer. Cheers Dona

sundials in schools

by the children. What is your opinion? I don't have photos of children on my website. I don't have any because I haven't sold any. I tried to give some sundials away but can't. I'm a terrible salesman and sound more like a telemarketer. Cheers Dona

Sundials in schools

by the children. What is your opinion? I don't have photos of children on my website. I don't have any because I haven't sold any. I tried to give some sundials away but can't. I'm a terrible salesman and sound more like a telemarketer. Cheers Dona

sundials in schools

by the children. What is your opinion? I don't have photos of children on my website. I don't have any because I haven't sold any. I tried to give some sundials away but can't. I'm a terrible salesman and sound more like a telemarketer. Cheers Dona

Re: Shadow Question

Ah, the 'Why' stage. Brings back a few memories. One time we driving in the country. My son asked me, "Why don't cows wipe their bottoms after they poo?" I answered, "Because their hooves tear through the toilet paper." Cheers Donald 0423 102 090 www.sundialsforlearning.com On Wed, Apr 3, 2

Re: Analemmatic sundial

Joel I have combined the two animations and made them into one. Feel free to copy it for your site instead of having the two separate ones. Cheers Donald 0423 102 090 www.sundialsforlearning.com On Mon, Jan 14, 2013 at 4:44 AM, Roger Bailey wrote: > --**---

Re: Analemmatic sundial

> Roger Bailey > from the polar side of temperate zone, N 48.6 > > --**---- > From: "Frank King" > Sent: Saturday, January 12, 2013 3:14 AM > To: "Donald Christensen" > Cc: ; "Sundial Mailing Mailing List" < > sundial@uni-koeln.de> > Subjec

Re: Analemmatic sundial

shfires there in Queensland. It’s been hot > here in Melbourne, but this year not near the bushfires. I note that NSW > have had 130 different fires burning at the same time. > > Regards, > > Roderick Wall. > > *From:* Donald Christensen > *Sent:* Saturday, January

Re: Analemmatic sundial

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 Limbu

Armillary Sundial

Who will design an Armillary Sundial? Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Un-authorizeduse of this email is subject to penalty of law. So there! -

Re: SEO

znnh0_wegbdtmpime...@mail.gmail.com> > Donald Christensen wrote: > > > I want to thank you all for your help > > > > My website sundialsforlearning.com is now W3C > > > > Can anyone help me with SEO? I want to get a better ranking with Google &g

Thank you

Thank you The response was amazing and much appreciated. The offers of help, advice, and feedback were very helpful. I'm in the process of making my site W3C Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the messag

website problems

I'm have trouble with my website. Not all browsers can view it. Can anyone help me with this? Dear Mr Christensen, Sorry for the slight delay in replying - but I had been checking why (as you had said), your new website works differently on various 'browsers'. Unfortunately, your web-designe

Re: sundials in schools

ation of your business and if the > $275.00 kit price is in US dollars? > > Roderick. > > *From:* Donald Christensen > *Sent:* Monday, August 13, 2012 3:14 PM > *To:* sundial@uni-koeln.de > *Subject:* sundials in schools > > My website is finally done > >

sundials in schools

My website is finally done It's about putting in analemmatic sundials in schools. http://www.youtube.com/watch?v=SoW-Kl_kaxw http://www.sundialsforlearning.com/ Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the me

Re: Sundials in school playgrounds

I found an excellent blog. It's is updated weekly with the most amazing stories on how fear, hysteria, and the compensation culture is overriding common sense. Safety is becoming so stringent that it's dangerous. http://freerangekids.wordpress.com/ Below is an example Dear Free-Range Kids: This

Re: Why are schools, across the world, 'banning' analemmatic sundials ?

any cases in the US where sundials are banned from schools > but I have not looked either. It never crossed my mind that it would be a > problem. > > > > -Original Message- > From: Donald Christensen > To: sundial > Sent: Sun, May 27, 2012 8:29 pm > Subj

Re: Why are schools, across the world, 'banning' analemmatic sundials ?

I found an excellent book on the matter It shows how we are making the world more dangerous for children. Society protects them so much that we prevent them from learning how to cope in the stressful world. Children grow old. We can't prevent that. However we can prevent them from growing up. “Be

Re: Why are schools, across the world, 'banning' analemmatic sundials ?

…….I would like to know the real, truthful reason these sundials are being banned, and it better be a good one. Don’t ponder on this with logic too long or you will get a headache. I hope nobody under 18 reads the email. I’d hate for this forum to get sued for being too dangerous. The legal t

Re: Re solar time calculator

newijzerkring.nl > > Molens > http://www.collsemolen.dse.nl > > Eindhoven, Netherlands > lat. 51:30 N long. 5:30 E > - Original Message - > *From:* fer de vries > *To:* Donald Christensen > *Cc:* sundial > *Sent:* Friday, October 14, 2011 4:20 PM > *Subject:* Re: so

Re: solar time calculator

t; and corrects for EoT, light refraction, aberration, nutation and precession, > as well as any of about 100 different timezone rules. > > > > On 2011-10-13 23:10, Donald Christensen wrote: > > Not sure what I’m doing wrong > > > > I wrote a program so that I can se

Re: EOT

I guess what I was trying to say is that I understand it but I don't understand it. Why does the inclination of the earth affect time if solar day vs sidereal day has no effect? Donald On Sun, Sep 25, 2011 at 12:50 PM, Donald Christensen < dchristensen...@gmail.com> wrote: > at

EOT

I’m trying to understand the equation of time All diagrams that I have seen (like the attached) are only two dimensional. For the sake of simplicity, the earth tilt is ignored. According to a two dimensional drawing, it will always require more than a 360 degree revolution for a point on the ear

sun position

I need to write a spreadsheet to find the sun position. I know there are already many programs that do this. However, I need to write one myself because: 1. I'll learn as I write 2. It will give the sun position in the format that I need 3. I can tweak the spreadsheet to give the same answer but i

appology

I appologize to the group. I was the first to mention trees. The other topic ended up as a debate over definitions. Glass does what it does no matter what it is called. I talked about trees because that is another debate that ends over definitions. My opinion of the definition of sound is as follo

Re: Sara Schechner

Karon Where do I find Saras article? On Tue, Aug 16, 2011 at 3:22 AM, Willy Leenders wrote: > Karon, > > More on timekeeping and history you can read on my website concerning the the > oldest surviving sundial, found in Egypt around 1500 BC > See http://www.wijzerweb.be/egypteengels.html > > Wil

Let's keep this forum going

I'm very greatful for this forum. Sundials are specialized topic. Where else could you find a group of people so knowledgeable and so willing to help. I think this as a great comment I hope you all realize that it's a full moon and the seasons are changing. Almost every list I'm on is having ar

Re: Falling Tree

a soldier!* > > *www.facebook.com/MilitaryRosary* > > *www.YellowRibbonRosaries.com* > > * * > > *From:* sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] > *On Behalf Of *Mike Shaw > *Sent:* Thursday, August 11, 2011 6:21 PM > *To:* Donald Christensen; Archie Kregear

Re: Falling Tree

arted sounding like an arguement of definitions similar to sound or noise comming from a tree. On Fri, Aug 12, 2011 at 8:10 AM, Donald Christensen < dchristensen...@gmail.com> wrote: > Sorry, I wasn't trying to kick off another debate. I was only trying to > compare falling t

Re: Falling Tree

Thursday, August 11, 2011, 8:39 AM > > I think quantum physicists Neils Bohr > > and Erwin Schrodinger would say there is no sound until it > > is observed. But I don't understand this stuff all too > >

Re: R: RE: Flow of medieval glass

If a tree falls in the forest where no one can hear it, does it make a sound? On Thu, Aug 11, 2011 at 3:24 AM, Simon [illustratingshadows < illustratingshad...@yahoo.com> wrote: > My two cents worth, having worked with glass for decades. > > 1. don't confuse an object bending under its own weight

Re: sundial Digest, Vol 68, Issue 24

I'm a bit in the dark. I don't know what the argument is. Is it glass in old houses ARE thicker at the bottom BUT this is not because glass is liquid. or Glass in old houses are NOT thicker at the bottom I have see lots in the debate whether glass is liquid or solid ( more molecular science t

Re: Sundial generator, a little clarification

I would be interested in finding that site as well On Tue, Aug 9, 2011 at 1:12 AM, dsc...@igc.org wrote: > I remember coming across a web site that would allow you print a dial and > gnomon after plugging in your polar coordinates. something for kids > primarily. > Dave Scott > > On 8/8/2011 9:

analemmatic sundial

I have lots of analemmatic sundials pics. However, I can't find any in gardens. I'm after a pic. the more vegitation the better. Can anyone help? -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify

Re: sundial read from moonlight

ble at night, > say, one week either side of full moon. For an example, see: > http://www.fransmaes.nl/genk/welcome-e.htm, choose menu item 7 and > scroll down in the right-hand frame to "The moon dial". > > Best regards, > Frans Maes > > On 30-7-2011 10:23, Donald Chr

sundial read from moonlight

I heard that a sundial will read the correct time with the shadow on the moon on a certain day. (full moon?) -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Un-authorized use of this

Re: Longitudinal shift, another way

with the earth axis. This means that the dial face must sit on a wedge to make this happen. Donald On 7/28/11, Donald Christensen wrote: > The triangle on the horizontal sundial is parallel to the earth axis. > The horizontal face is flat on the ground (or pedistal) and not in > line

Re: Longitudinal shift, another way

The triangle on the horizontal sundial is parallel to the earth axis. The horizontal face is flat on the ground (or pedistal) and not in line with the axis A horiz dial will work on any lattitude in the same hemisphere (otherwise the numbers are backwards) as long as the triangle gnomen is inline

Re: solar compass

ic. > > Simon > > Simon Wheaton-Smith > www.illustratingshadows.com > Silver City, New Mexico W108.2 N32.75 and > Phoenix, Arizona, W112.1 N33.5 > > > --- On Sat, 7/23/11, Donald Christensen wrote: > >> From: Donald Christensen >> Subject: solar compas

solar compass

A few months back on this forum, I saw a link to a photo of a solar compass. It was an analemmatic sundial that help direct ww2 bombers to their target. Does anyone know where I can find this link? Also, I'm after other stories similar -- Cheers Donald 0423 102 090 This e-mail is privileged a

hi

I'm a member of this. My username and password were saved in memory on my computer. I have since re-loaded my computer. Now when I post a question, the forum doesn't know that I'm a member. How do I fix this? -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you ar

multi dial

Does anyone have a picture of a multi-dial like the attached? The one that I have is way too small. (filesize) It won't print -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Un-auth

Re: Old sundial pictures

Kevin I really like the St Petersburg one! the other black and white g792092 is another great one. Thank you. Does anyone have any older ones? A scanned image from a book will do. dchristensen...@gmail.com On 6/30/11, Kevin Karney wrote: > Hi Donald > Any of these of any use? > I personally l

Analemma in Verse

I love the poem Analemma in Verse by Tad Dunne Does anyone know where I can contact him? The latest info that I have on him is http://www.mail-archive.com/sundial@uni-koeln.de/msg11062.html His email doesn't work. Does anyone have a more recent contact info on him? -- Cheers Donald 0423 102

Re: Old sundial pictures

Tony Thank you. That is exactly what I'm looking for! I'm still looking because I want more pics like the one you sent me. Dariusz You have an impressive website. Do you have any photos similar to the one Tony sent me? Donald On Tue, Jun 28, 2011 at 8:40 PM, Dariusz Oczki wrote: > Hi Donald

Old sundial pictures

I'm putting together a presentation about the history of sundials. I'm primarily after history pictures of people interacting with the sundial. Do you know where I can find some? -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient pl

perforated ring dial

Does anyone know where I can get software for a perforated ring dial. -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Un-authorized use of this email is subject to penalty of law. So

standard meridian list

I'm trying to find a list of cities and the standard meridian they set their clock to. Example Brisbane - 150 deg east San Fransisco - 120 deg west Paris - 15 deg east London - 0 deg -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended

Re: upside down world

I was borne in the northern hemisphere and lived there for 22 years. I got use to reading maps where north is on top, south is on the bottom, west is on the left, and east is on the right. So far so good. I also got use to the equator is south of me, the ocean is west of me, and inland is to the ri

a ring dial

Does anyone know where I can get plans for this dial? http://www.karlrainerbirk.com/RING-SUNDIAL.html When I try to email the website, it asks me for a password -- Cheers Donald 0423 102 090 This e-mail is privileged and confidential. If you are not the intended recipient please delete the me

Re: part 2 of longitude correction

Longitude correction I have been staring at equatorial sundials for so long that I forgot how a horizontal one works. This is why I suggested that you can rotate the face 3 deg if you are 3 deg difference from the standard meridian. I have since had a wake up call and learned/remembered that this

part 2 of longitude correction

I'm laying out lines for a new dial I may not have been clear. I don't intend to rotate the gnomen. The dial will still point true north By labeling 12:12 as noon and 13:12 as 13:00, I am rotating the hour marks. My question is, Is it by an even 3 deg? -- Cheers Donald 0423 102 090 This e-ma

longitude correction

How do I design a longitude correction in my sundial? Correct me if I'm wrong My horizontal dial is for Brisbane. The longitude is 153 deg and the standard meridian is 150. This is a 3 deg difference. I'll then rotate the hour lines by 3 deg to compensate -- Cheers Donald 0423 102 090 This