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The pointer on a sundial is called a gnomon. It casts a shadow on the sundial face to indicate the time.
The upright arm of a sundial is called a gnomon. It is the part that casts a shadow on the sundial face to indicate the time.
The raised arm of a sundial that indicates the time of day by its shadow is the gnomon (NO-mon). A sundial has but one arm, what do you mean by secondary arm?
index?
pin clock
The raised arm of a sundial that indicates the time of day by its shadow is the gnomon (NO-mon). A sundial has but one arm, what do you mean by secondary arm?
The common name for the timekeeping device sometimes known as a shadow clock is a sundial.
Sundial
The rod in the center of a sundial is called a gnomon. It is the part of the sundial that casts a shadow, allowing the time to be determined based on the position and length of the shadow it creates.
The pin of a sundial is called a gnomon. It is the part that casts a shadow on the dial plate, indicating the time based on the position of the sun. The angle and height of the gnomon can affect the accuracy of the sundial's timekeeping.
I have a sundial in the garden.The sundial were the earliest form of clocks.
Jantar Manters at Jaipur,Delhi and Indore.The biggest sundial in India is called 'samrat yantra'.It was built in 1728.