And of course the time lines rotate in opposite directions north and
south of the equator, as the sun travels east, south, west in the
northern hemisphere and east, north, west in the southern hemisphere
(except seasonally in the tropics).
Frank, 55N 1W.
On 16/11/2015 10:49, rodwall1234
Oops, a typo:
I meant to say that, at the North Pole, no sundial will tell time when the
solar declination is south. But, of course, at the South Pole, it's when
the solar declination is *north*, that there won't be sunshine and sundials
won't tell time.
Michael Ossipoff
On Mon, Nov 16, 2015 at
People who have already replied have said pretty much everything that I'd
have said.
As several people pointed out, yes the shadow-casting gnomon-edge should be
tipped 32 degrees above the horizonal, at latitude 32 south.
But, because it's south latitude, the up-pointing end of the gnomon should
Hi,
The small bear is Ursa Minor as you suggest. You can see the stars of the
constellation on him.
Hinc nascitur ordo is a motto literally translated as “Hence the order [of
things] is born.” It sometimes appears as Rerum hinc nascitur ordo in
devices. It connotes power of a ruler or
Phil,
A sundial on the equator (whose style is horizontal) certainly works.
As an example, a photograph of a sundial in Singapore, near the equator.
Willy Leenders
Hasselt in Flanders (Belgium)
Visit my website about the sundials in the province of Limburg (Flanders) with
a section 'worth
Phil,
A sundial on the equator (whose style is horizontal) certainly works.
As an example, a photograph of a sundial in Singapore, near the equator.
Willy Leenders
Hasselt in Flanders (Belgium)
Visit my website about the sundials in the province of Limburg (Flanders) with
a section 'worth
Hi Phil again,
The sundial normally needs to be designed for your latitude. That is the Gnomon
angle to the face plate is the same as your latitude. But if it is designed for
some other latitude. It will still work OK. So long as you make the shadow
forming edge of the Gnomon parallel to the
Hi Phil,
The shadow forming edge of the Gnomon must be parallel the the axis of the
earth. To do that the shadow forming edge of the Gnomon is set to be the same
as your latitude. The only difference in the southern hemisphere is the the tip
of the Gnomon is facing South. While in the Northern
And of course the time lines rotate in opposite directions north and
south of the equator, as the sun travels east, south, west in the
northern hemisphere and east, north, west in the southern hemisphere
(except seasonally in the tropics).
Frank, 55N 1W.
