About five years ago my eldest grand-daughter was given a home-work
project by her teacher at a school many miles away from me in the
Thames Valley England. This was in the last week of the summer term.
The project consisted of a taking sheet of paper with a circle and
right-angled triangle printe
John
Sorry I can't assist with a more helpful comment but, if you value your
well-being, don't ever let a Welshman know that you've placed Conwy in
England ;~)
Regards
Andrew
_
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Carmichael
Sent: 02 June 2008 17:39
To
Interesting!
According to the video the clock synchronises to the sun at noon on any
sunny day.
No mention is made of the "Equation of Time" correction.
So it will be a curious "Alice in Wonderland" type clock that tells the
correct time by the sun precisely once on any sunny day and the correct
ise a considered reply.
_
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of JOHN DAVIS
Sent: 15 July 2008 14:08
To: John Goodman; sundial@uni-koeln.de
Subject: RE: Solar synchronizer (Andrew Pettit)
Dear colleagues,
You may be interested to know that the 3-D cam for th
Fantastic!
At 200,000 Euros is it also the world's most expensive sundial?
Regards
Andrew Pettit
-Original Message-
From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On
Behalf Of robic.joel
Sent: 15 June 2009 18:13
To: Sundial related list with internat
stance!
As I said at the start, it may be my incompetence so I'll be interested to
read other feedback.
Hope this helps as it is a novel idea. Do keep trying.
Andrew Pettit
-Original Message-
From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On
Behalf Of Da
Is this available to those who are not members of NASS?
Andrew
_
From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On
Behalf Of Hal Brandmaier
Sent: 20 August 2009 23:30
To: sundial@uni-koeln.de
Subject: FW: Spherical gnomon
Please refer to my article "A Not
Richard
Isn't it nice to know how much you were missed when you fell ill ;~)
Hope you're feeling better now.
Andrew Pettit
-Original Message-
From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On
Behalf Of Richard Mallett
Sent: 26 November 2009 00:2
Ladies & Gentlemen
The following may be of interest to you ~ particularly as a resource for
those who give talks.
http://plus.maths.org/issue53/features/mee/index.html
It addresses the very issue that led to my interest in Sundials ~ the
Analemma!
To my shame I have never got beyond the general
Mike
You make a very valid point.
Andrew
_
From: Mike Shaw [mailto:jmikes...@ntlworld.com]
Sent: 21 December 2009 17:16
To: and...@lucastes.co.uk; sund...@rrz.uni-koeln.de
Subject: Re: Some useful resource material
Andrew,
In the article at: http://plus.maths.org/issue53/feature
Andrew Pettit
~~
e-mail: and...@lucastes.co.uk
Postman Pat:3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ
ENGLAND
Tel. UK:+44 (0)1444 453111
ut you'll be looking at a
computer screen when you read this!
Regards
Andrew Pettit
-Original Message-
From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de] On
Behalf Of Tom Laidlaw
Sent: 19 June 2010 06:13
To: 'sundial list'
Subject: Polar sundials
Hi there
I found following link and the associated talk fascinating and in keeping
with the rest of the series.
http://www.bbc.co.uk/ahistoryoftheworld/objects/aU8eDjPFTQy35wPaAhSLGg
I hope that those outside the UK are able to listen
Regards
Andrew Pettit
I can thoroughly recommend a really good book (I'm only half way through
it) that was suggested to me by another member of this list.
"Saving the Daylight" by David Prerau.
My thoughts at present are that a number of issues have really driven the
widespread adoption of DST:
The realization that
I endorse all that Mike Shaw has said.
My understanding is that it's easier when trying to explain such concepts as
sundials and the "Equation of Time" it is "better" to regard the Earth as
stationary ~ just as the ancient astrologers did. The motion of the earth
around the sun is important in exp
a Millennium Sundial.
> (every one Y2K compliant)
>
> Horizontal, Vertical, Declining, Analemmatic, Equatorial,
>Polar and Capuchin Sundials individually made in solid
> engraving brass. Professional-quality Dialling Scales,
> &
16
minutes longer?"
>
>Answer: Days don't get LONGER by 16 minutes. Solar Noon is 'out of step'
with Clock Noon by 16 minutes in October?November
>
>It took a while for this light to dawn for me
>
>Tony Moss
>
--Andrew Pettit-
>
>You could add:
>analemmatic "Anna - lem - MAT - ic"
>equinox "EK - we - nox"
>Greenwich"GREN - itch"
>nodus "no - duss"
>solstice "sol - stiss"
>
>
>Regards
>Chris
>
>Chris Lusby Taylor
>51.5 N, 1.5 W
>Content-Type: text/x-vcard; charset=us-ascii;
> name="clusby.vcf"
>Content-Description: Card for Chris Lusby Taylor
>Content-Disposition: attachment;
> filename="clusby.vcf"
>Content-Transfer-Encoding: 7bit
>
>Attachment Converted: D:\DOWNLOAD\clusby.vcf
>
--Andrew Pettit
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ,
ENGLAND
Tel. UK: (+44) (0)1444 453111
Can you explain the origins on the
"Equation of Time" ?" and the allied question "Please explain the Anelma"
While I think of it how about describing astronomical terms such as Right
Ascension and Hour Angle
Regards - and best of luck with th
see.
>> >Days such as 4-13-89 have both even and odd
>digits, thus, it is neither
>> odd
>> >nor even.
>> >The next even day will be 2-2-2000 - the
>first one since 8-28-888. So,
>> now
>> >you have a reason to celebrate this Friday as
>it'll be your last odd
>> day on
>> >Earth!!
>>
>
>
--Andrew Pettit
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ,
ENGLAND
Tel. UK: (+44) (0)1444 453111
!!
Regards
----------Andrew Pettit
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ,
ENGLAND
Tel. UK: (+44) (0)1444 453111
are Bank architects/building services designers
who take no note of the sun when installing ATM's. As a result the ATM
screens are unreadable at certain times of the day/year.
On a recent visit to Malta I noticed little parasolles above the ATM's -
very cute!
Regards
-
he Earth's orbit to rotate
through 360 degrees. This period is about 21,000 years.
Under the heading "Length of the year" the period of precession is given as
26,298 years and I have that figure from other sources.
Am I correct in thinking that these are two seperate long term effects
>
Of course it is - but I always thought of the North Pole being the gnomon ;-)
--Andrew Pettit
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ,
ENGLAND
Tel. UK: (+44) (0)1444 453111
t;<<<<<<>>>>>>>>>>>>>>>>>>>>>>
I know what you mean...but have you ever tried to mark a year off in
your diary!!
Shades of The Mad Hatter's Tea Party in Alice in Wonderland.
Apologie, but I couldn't resist.
--Andrew Pettit
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ,
ENGLAND
Tel. UK: (+44) (0)1444 453111
H The Duchess of Kent.
As Robin Hilp had mentioned, we send the Plans all over the world.
I hope this information is helpful - especially to ROBIN HILP. If
you need more details, please E-mail (or Fax to the number below).
Best regards,
Douglas Hunt, "Modern Sunclocks", SCOTLAND. Fax: +44 1294 552250.
--Andrew Pettit
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ,
ENGLAND
Tel. UK: (+44) (0)1444 453111
I have seen much worthy comment on the above giving far more information
than I could possibly imagine.
However,
and please do take this to be a constructive comment,
Is it likely to have helped Judith in her quest
If I have missed something then please forgive me.
Regards
Andrew
f all the mathematical
>calculations
>>>> that they would not understand) is to mark each hour in the day during
>the
>>>> winter and summer solstices (12/21 and 06/21) -- then connect the
>"dots".
>>>> Granted this process takes six months to complete, but it would ensure
>that
>>>> all longitude corrections are incorporated, effortlessly.
>
>
--Andrew Pettit
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ,
ENGLAND
Tel. UK: (+44) (0)1444 453111
For those interested there was an enjoyable
programme on the radio today:
BBC - Radio 4 - In our Time - The
Calendar
To listen try:
http://www.bbc.co.uk/radio4/progs/listenagain.shtml
look for "In our Time".
As I write you catch it simply by clicking the
"listen again" button. I gue
May this find more favour than my last posting
regarding "The Calendar"
Happy New Year to all.
------Andrew
Pettit--- e-mail:
[EMAIL PROTECTED] Postman
Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex,
But are you using the correct calendar
;~)
--Andrew
Pettit--- - Original Message
-
From:
[EMAIL PROTECTED]
To: sundial@rrz.uni-koeln.de
Sent: Thursday, February 19, 2004 1:33
PM
Subject: Birthday
Happy
Thank you for this comment (at end of the
e-mail) - it is exactly the point that I was trying to make - though
clearly not very well. The reply
including:
Do mojego przyjaciela Reinhold Wiele
wdziecznosci za wasze zyczenia dla mojego dnia urodzeniaZ moimi lepszymi
sympatiaMikolaj Kopern
I'm awaiting your second post!
Regards
Andrew
- Original Message -
From: "Richard Hollands" <[EMAIL PROTECTED]>
To: "Sundial Mail List"
Sent: Thursday, April 14, 2005 7:45 PM
Subject: RE: Duplicate messages
>
> Yes and it's still happening.
>
> -Original Message-
> From: [
I don't
know whether tis is strictly "on topic" in relation to your question but on a
visit to Pompeii recently I was amazed by the sundial at the Temple of
Apollo.
This was
buried in 79AD and is far froma a "vertical obelisk type
dial"
A picture
can be found at:
http://www.amherst.e
Then surely you shave your beard off frequently Tony ;~)
-Andrew--
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of tony moss
Sent: 16 July 2005 19:28
To: 'Sundial Mailing List'
Subject: Re: Wolfs
ation process requires
about 22 megabytes free. If you have multiple disc drives, you can share
the various files and directories among them.
-------
by John Walker
[EMAIL PROTECTED]
-Andrew
and so may be compared with expresions given in old text books."
I hope that these two references help - though I note that other side issues
such as the inner workings of Excel date functions may also cause some
anomolies
Best of luck
-Andre
seems a little far fetched.
As I said earlier I hope that this obsevation does not appear impolite - or
even wrong in which case I will "have egg all over my face!!!"
I hope that this is of asstistance.
Regards
-Andrew
Pettit-
gain has plane faces through the object
and try it again.
How about the "Bridges of Konnigsberg" introduction to Graph Theory and
Hamiltonian & Eulerian Cycles. This could lead you on to the unsolved
travelling salesman problem!
Best of luck
Andrew
-
Thank you Daniel for all your help and the enjoyment you have given me in
setting my options.
I understand the idea of setting a preferred language ~ but you have to
start off in German and progress from there. As a non-German speaker (shame
on me) I used Babel-fish to translate chunks of German a
Another interesting site is:
http://www.fourmilab.com/homeplanet/
If you haven't already come across it.
Regards
Andrew
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Douglas Bateman
Sent: 19 March 2006 18:01
To: sundial@uni-koeln.de
Subject: Terminator
Could refraction by the earth's atmosphere have some relevance here?
Andrew
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Greg Gómez
Sent: 31 August 2006 00:15
To: sundial@uni-koeln.de
Subject: Question about lunar phase and the sun's path in the sky
He
Andrew
---
https://lists.uni-koeln.de/mailman/listinfo/sundial
Andrew
---
https://lists.uni-koeln.de/mailman/listinfo/sundial
Hmm!
To paraphrase (is that the right word?) Galileo:
"And yet we move!"
Regards
Andrew
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Bill Thayer
Sent: 01 April 2007 18:25
To: sundial@uni-koeln.de
Subject: Re: Could anyone please translate this Latin in
You may be mused by cartoon on page 108 of New Scientist dated 26th July
1997 (No. 2092).
I know little or nothing of copyright obligations or the etiquette of
sending bitmaps by e-mail so I am reluctant to broadcast the cartoon itself.
Regards
Andrew Pettit
wn if mine is a lone voice.
If you have reached this far, thank you for considering this.
Regards
-Andrew
Pettit---
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex,
nybody have further details or examples of similar constructions to
make up for my woefully inadequate description?
Regards
------Andrew Pettit
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARD
ime, so we are quits.
----------Andrew Pettit
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ,
ENGLAND
Tel. UK: (+44) (0)1444 453111
ameter
>horizontal sundial. The sundial is pictured on page 81.
-Andrew
Pettit---
e-mail: [EMAIL PROTECTED]
Postman Pat: 3, Lucastes Road, HAYWARDS HEATH, West Sussex, RH16 1JJ,
ENGLAND
Tel. UK: (+44) (0)1444 453111
Hello
What fun!
Methinks that the confusion arises because the earth is not a "plane" but a
sphere. Mercator tried to project the sphere on to the plane and had curved
lines of latitude.
Another confusion is that there is more than one Halifax ;-)
Andrew
From: sundial [mailto:su
See also
Martin Gardner - Mathematical Carnival - Ch. 17
Andrew
From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Brent
Sent: 15 September 2015 17:30
To: Frank Evans
Cc: sundial
Subject: Re: due east
If I was in halifax at sunrise on the equinox and the earth stopped
On Wednesday, 24 February 2016, Fred Sawyer wrote:
> Frank,
>
> Happy Leap Day. I have shared your Power poibt file on this with ny
> daughter so she dan use it in the Latin classes she teaches. She is having
> parties in each of the classes today.
>
> Best wishes,
>
> Fred
>
> On Wednesday, Fe
mplate!
Am I missing something?
Regards
Andrew Pettit
-Original Message-
From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Frank King
Sent: Sunday, October 30, 2016 2:37 PM
To: Dave Bell; Donald L Snyder
Cc: sundial@uni-koeln.de
Subject: Re: Sundial Puzzle Corner
day”!
For determination of time we should, perhaps, consider the Lon Now Clock.
Regards
Andrew Pettit
From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Thibaud Taudin
Chabot
Sent: Monday, January 15, 2018 11:20 AM
To: Sundial sundiallist
Subject: Re: The utility of
sense of the sheer enjoyment of exploring all
the wonderful places where sundials can take me.
Cheers, John
John Pickard
john.pick...@bigpond.com
From: Andrew Pettit <mailto:and...@lucastes.co.uk>
Sent: Tuesday, January 16, 2018 10:44 PM
To: sundial@uni-koeln.de
Subject: RE: The util
56 matches
Mail list logo
