Hi Rodger,
Thanks for the discretion.
Best regards,
Roderick Wall.
- Reply message -
From: "Roger"
To: "rodwall1...@gmail.com" , "Michael Ossipoff"
Cc: "sundial list"
Subject: Is this sundial business 'genuine', or not?
Date: Mon,
= a (Cos Lat)
squared.
Publication as an article? Not if it takes 30 x 1000 words!
Regards,
Roger Bailey
Walking Shadow Designs
From: rodwall1...@gmail.com
Sent: July 21, 2018 1:59 PM
To: Michael Ossipoff; Roger
Cc: sundial list
Subject: Re: Is this sundial business 'genuine', or not?
ing replaces a 1,000 words.
There also maybe teachers in this group who also find it hard to follow. They
might want to use this method in their classroom.
Thank,
Roderick Wall.
- Reply message -
From: "Michael Ossipoff"
To: "Roger"
Cc: "sundial list"
S
n Maddocks
Chester, UK
53°11'50"N 2°52'41"W
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
the value of a
> analemmatic sundial installation at a school would be to stimulate interest.
>
>
>
> Regards, Roger Bailey
>
> Walking Shadow Designs
>
>
>
> *From: *Jack Aubert
> *Sent: *July 17, 2018 6:27 AM
> *To: *'Michael Ossipoff' ; 'sundial
-koeln.de
Cc: Jack Aubert
Subject: Re: Is this sundial business 'genuine', or not?
This reminds of an interview I read somewhere, with a former RAF instructor who
taught survival navigation techniques for downed fighter pilots - no GPS or
compass, just sun and stars. He said t
Hi:
There's an excellent TED talk:
http://www.ted.com/talks/david_deutsch_a_new_way_to_explain_explanation?language=en
The best explanation is the one currently accepted by science.
This pointed me to many books by Karl Popper and was the root cause of the two
axioms below my signature on this e
Hi:
There's an excellent TED talk:
http://www.ted.com/talks/david_deutsch_a_new_way_to_explain_explanation?language=en
The best explanation is the one currently accepted by science.
This pointed me to many books by Karl Popper and was the root cause of the two
axioms below my signature on this e
This reminds of an interview I read somewhere, with a former RAF
instructor who taught survival navigation techniques for downed fighter
pilots - no GPS or compass, just sun and stars. He said that one of
frustrating parts of his job was that with every new class he had to
un-teach the idea d
in NASS are excellent but there are very few others are interested in
> such an extracurricular activity. Perhaps that is the value of a
> analemmatic sundial installation at a school would be to stimulate interest.
>
>
>
> Regards, Roger Bailey
>
> Walking Shadow Designs
>
aking available to kids, giving them access to,
challenging and interesting things that we might not expect them to be
interested in., Let's not limit them to our expectations for them.
Michael Ossipoff
>
>
> Regards, Roger Bailey
>
> Walking Shadow Designs
>
>
>
>
Hi Roger and Mitchael,
I'm sure others have thought of and have used these concepts before us.
Sundials have been around for a long time.
What these concepts achieves are:
That all clocks have a energy source to make them work. For sundials it is the
rotation of Earth. And that planet Earth rot
.
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 ver
When I mentioned (at least hypothetically) a mechanical method and an
empirical method for constructing a Reclining-Declining Dial, they were
intended as ways to assure someone that s/he knows of a way that such a
dial can be constructed. (I feel that it's unsatisfying to own, use, or
visit a sun
Yes, the central-gnomon Equatorial dials, with their gnomon parallel to the
Earth's axis, and their circular measuring-scale parallel to plane of the
equator is educational, because its measurement of Solar Time is completely
direct.
And yes, you're quite right: The construction of the Horizontal
Bailey
Walking Shadow Designs
From: rodwall1...@gmail.com
Sent: July 17, 2018 4:14 PM
To: Michael Ossipoff; Steve Lelievre
Cc: sundial list
Subject: Re: Is this sundial business 'genuine', or not?
Hi all,
The following is what I think is the best way to describe how sundials work to
kids
value of a analemmatic sundial
installation at a school would be to stimulate interest.
Regards, Roger Bailey
Walking Shadow Designs
From: Jack Aubert
Sent: July 17, 2018 6:27 AM
To: 'Michael Ossipoff'; 'sundial list'
Subject: RE: Is this sundial business 'genuine
Hi all,
The following is what I think is the best way to describe how sundials work to
kids or anyone.
1st start with the largest sundial in the world. Planet Earth the Master
sundial clock. Stick a vertical stick into the ground at the South pole or
North pole. And describe how the shadow sho
bject line so it is more specific
than "Re: Contents of sundial digest..."
Today's Topics:
1. RE: Is this sundial business 'genuine', or not? (Jack Aubert)
2. Re: Is this sundial business &
Sure, any type of dial is fine if it works for the situation.
And apologies to all for the typos in my last message. I think my PC had
auto-obfuscate turned on.
Steve
On 2018-07-17 11:07 AM, Michael Ossipoff wrote:
Insisting on limiting it to central-gnomon Equatorials sounds unfair to
stude
beyond the grasp of almost all
>> children and almost all adults.
>>
>>
>>
>> Jack
>>
>>
>>
>> *From:* sundial *On Behalf Of *Michael
>> Ossipoff
>> *Sent:* Tuesday, July 17, 2018 12:29 AM
>> *To:* sundial list
>> *S
Steve--
Alright, acknowledged. But, even so, why not instead have a class design
and build a dial whose construction-derivation would be of interest to
them. ...or even build, or have it built, for them.
...such as any central-gnomon Equatorial, or any Flat Dial that's
Horizontal, Vertical or
An analemmatic dial is more considered more interesting than other kinds
because it is somewhat interactive, but I agree that it is a little
harder to understand. To me though, installing a sundial at a school
isn't just about, or even primarily about, the teaching of the mechanics
of how it
*Michael
> Ossipoff
> *Sent:* Tuesday, July 17, 2018 12:29 AM
> *To:* sundial list
> *Subject:* Re: Is this sundial business 'genuine', or not?
>
>
>
>
>
> To continue something that I started before:
>
>
>
> The derivation of the construction
Michael Ossipoff
Sent: Tuesday, July 17, 2018 12:29 AM
To: sundial list
Subject: Re: Is this sundial business 'genuine', or not?
To continue something that I started before:
The derivation of the construction of the Analemmatic could be explained to
anyone, with 3 lesson-sessions, o
To continue something that I started before:
The derivation of the construction of the Analemmatic could be explained to
anyone, with 3 lesson-sessions, over 3 days.
Yes, an Analemmatic Dial could be educational, when it gives people
incentive to study, read about or listen to the dial's derivati
If I may correct a small error in something that I said:
I said:
> That's easily remedied by having additional apertures at the 6 am & pm
> positions, with a few separate special hour-lines for use with those
> aperatures. I'd make those 6-o'clock apertures double, to make them
> easily-distin
I've just realized that I mis-spelled "aperture". I don' t know why I added
the extra "a".
Michael Ossipoff
On Thu, Jul 12, 2018 at 12:26 PM, Michael Ossipoff
wrote:
>
> As Hunt pointed out, there might be many locations where an Anelematic is
> the only dial that won't be stolen or vandalized.
As Hunt pointed out, there might be many locations where an Anelematic is
the only dial that won't be stolen or vandalized. And I like it. But I'd
consider it a last-resort, to be used only when a previous dial has been
stolen or vandalized. That's because I prefer sundials whose
construction-prin
Thanks to the people who responded, either direct to this Mailing
List - or had E-mailed to me privately, with their own comments.
Based on those replies, I contacted "Sunclocks" to ask why their
price was so low (compared with the people acting as Distributors
for them) - as well as why they sh
Fritz Stumpges
-Original Message-
From: sundial On Behalf Of William Irvine
Sent: Monday, July 9, 2018 7:15 AM
To: sundial@uni-koeln.de
Subject: Is this sundial business 'genuine', or not?
Now that I am retired, I have been thinking about turning my 'hobby'
of sundia
Dear Bill,
Sunclocks are genuine. Some people are very
enthusiastic about them, others are not. You
have almost certainly seen a Sunclocks dial
without realising it.
They have an interesting business model...
If you want a sundial you are given several
options:
1. Buy a full set of instructi
Now that I am retired, I have been thinking about turning my 'hobby'
of sundials into an income source - as there are obviously several
successful businesses who are already doing it, around the world.
I had typed 'making money from sundials' into the "Google" search
engine, and one of the first
...and in Spain (good imitations too).
Luis
El 20/02/2017 a las 20:02, Gianni
Ferrari escribió:
The sundial
mentioned by Dan Uza is a diptych made in recent years
in imitation of those
ma
Dear All,
I endorse Gianni Ferrari's comments about the
shop in Trastevere. I have visited it several
times and it is quite unlike any other shop
that I have ever been in. The owner has a
quite extraordinary selection of fascinating
items for sale.
There is a (small) market for reproduction
dip
The sundial mentioned by Dan Uza is a diptych made in recent years in
imitation of those manufactured in eighteenth century in Europe.
Sundials of this type are sold in some specialized shops (very few) in
Italy and France.
On the dial, at top, is written the name GUAYTAMELLI , that is the name of
u<mailto:sche...@fas.harvard.edu> |@SaraSchechner
http://scholar.harvard.edu/saraschechner
http://chsi.harvard.edu/
From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Dan-George Uza
Sent: Monday, February 20, 2017 9:58 AM
To: sundial@uni-koeln.de
Subject: Genuine or not?
Hello!
Compass doesn't look quite right - if it's German I might expect East to be
written as Ost.
*Patrick Vyvyan*
*Presidente*
*Corporación Cultural de Putaendo*
On 20 February 2017 at 12:22, Michael Ossipoff
wrote:
> It doesn't seem genuine to me.
>
> It isn't just that there doesn't seem to b
It doesn't seem genuine to me.
It isn't just that there doesn't seem to be a way of moving the upper end
of the string to the other latitude-marks. It's also that you can't just
change the angle of the gnomon, for a different latitude, and use the same
hour-lines.
So there seems to be no purpose
Hello!
There's a diptych sundial on sale for about 80 euros supposedly dating from
1920.
Do you think this is genuine? I think it is a modern replica.
http://anticariatulnou.ro/diverse/antichitati-artizanat-colectionabile/cadran-solar-cu-busola-antica-din-lemn-diptic.html
The string does not se
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