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Yes, sundials can tell time. That is what they are designed to do.
the shadow
They had pendulum clocks. (What you might call a grandfather clock). Also sundials, water clocks, candles.
Sundials use the posidtion of the sun to cast a shadow on the dial. You can then read the number on where the shadow falls to get the time. As a result, no, there shouldn't be different types of sundials.
Sundials require sunlight.
sundials
Sundials were a good thing 2 use!!
The egyptians used sundials to tell time.
the ancient Greeks used sundials to tell time.
Sundials were used to tell time, back without watches.
They couldn't tell the time from sundials because there was no sun.
There is no specific date stated as to when sundials were first used.
Yes, sundials can tell time. That is what they are designed to do.
the shadow
Well, for starters you just used sundial in a sentence. But another sentence could be... Sundials help you tell time.
They had pendulum clocks. (What you might call a grandfather clock). Also sundials, water clocks, candles.
Clocks. Sundials.