Why is a sundial more accurate than a clock?
Your sundial is a scientific instrument
calibrated for 40 N latitude. It uses the natural motions
of the earth around the sun to find local solar time at
each instant. Clocks keep mean time, which is the average
solar time for a broad 15 section of the earth known as
a Time Zone. While convenient to running modern businesses,
clocks give us only a coarse approximation of local solar
time.
What happens on a cloudy or rainy day?
These dials remind us of a simpler
time. If you asked me what to do if the sun didn't shine
or it was a cloudy day, I would say, "Take the day
off! We'll meet on the next sunny day." Life was like
that. People's activities were limited to the daylight hours.
Where do sundials originate?
Each culture had a method to determine
general time way before the invention of clocks. Sundials
can be traced back throughout history to ancient Egypt.
Do they really work?
All the Shepherds Watch® sundials
are functioning timepieces.
What happens at night when the sun
isn't out?
The majority of our dials work during
the daytime; however, the nocturnal line of dials work with
the stars instead of working with the sun. They are "star
dials."
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