Dear Jim,
If you have a copy of the Mayall's book, you can see a picture of a
Japanese Noon Mark Dial Designed for use at Sea which they say comes from the
Ernst Collection. Basically it's a table on gimbals with a big weight hanging
below it. (it's opposite p.153 of my edition). If you
]
To: Sundial List [EMAIL PROTECTED]
Sent: Saturday, October 13, 2007 4:16 PM
Subject: Non-terrestrial sundials
Hello All,
Has anyone ever seen a sundial specifically designed for use on a boat
or ship?
I realize that there are obvious issues re: movement and variable
location, but I thought
: Saturday, October 13, 2007 4:16 PM
Subject: Non-terrestrial sundials
Hello All,
Has anyone ever seen a sundial specifically designed for use on a boat
or ship?
I realize that there are obvious issues re: movement and variable
location, but I thought it might be an interesting question
AM
Subject: Re: Non-terrestrial sundials
Jim and others,
I know about a sundial on board of a passengers ship.
I posses a photo-copy of small booklet about the dial and its use.
The ship is the MS Oranje, built in 1938/39.
About the ship and her history have a look at:
www.ssmaritime.com
Hello All,
Has anyone ever seen a sundial specifically designed for use on a boat
or ship?
I realize that there are obvious issues re: movement and variable
location, but I thought it might be an interesting question for the list
to consider from the historical perspective...
Best,
Jim
Hi,
I changed the heading because at first I got to thinking about that
sundial on Mars
Yes, there are quite a few sundials that were designed especially for
their seaworthiness and other timefinding instruments that were readily
adapted for maritime use.
The first that comes to mind is
Hi Jim,
The obvious answer, of course, is the universal equinoctial ring dial, as
invented (?) by William Oughtred. It finds its own vertical and meridian, is
adjustable for latitude, folds up for easy stowage etc etc. But perhaps this
isn't what you meant...
Regards,
John
Thanks Sara,
I thought there might be more than simple carry aboard universal dials
that may have been used aboard ship in years past. Thanks for your
historical perspective.
Perhaps I should explain why I was thinking about this. This past Monday
was Columbus Day here in the US, and on TV
The pocket dials owned by the sailors of five hundred years ago and
recovered from Henry VIII's ship, the Mary Rose, deserve a glancing
mention.
Frank
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