Dear group,
Here's an interesting trivia from a German book written by Helga Pohl: "Wenn
dein Schatten sechzehn Fuss misst, Berenike" (1955).
While talking about ancient Chinese timekeeping, she mentions that they
used water clocks and the shadows of the edges of their homes to tell
approximate
On Fri, Feb 24, 2017 at 1:04 PM, Steve Lelievre <
steve.lelievre.can...@gmail.com> wrote:
> Fellow sundiallers,
>
> I’m planning to make my next sundial from outdoor grade UV resistant
> plastic sheeting. These come in a range of colours and I want to choose one
> that works well for a sundial.
Possibly related method??
https://www.youtube.com/watch?v=ETz0elhKvkM
Dave
From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Dan-George Uza
Sent: Friday, February 24, 2017 2:51 AM
To: sundial@uni-koeln.de
Subject: A different sort of timekeeping
Dear group,
Here's
Fellow sundiallers,
I’m planning to make my next sundial from outdoor grade UV resistant
plastic sheeting. These come in a range of colours and I want to choose
one that works well for a sundial. Assuming I get the material
grit-blasted or somehow treated so that it not shiny, and leaving
