whaere is the answer
the shadow of the sundial is just called a shadow
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 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 pointer on a sundial is called a gnomon. It casts a shadow on the sundial face to indicate the time.
Sundial
the shadow of the sundial is just called a shadow
You can use a sundial, which is a device that uses the position of the sun's shadow to tell time. By placing a stick or pointer on the sundial, the shadow it casts can indicate the time based on markings on the sundial's face.
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?
Position of a Shadow
clockwise
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 pointer on a sundial is called a gnomon. It casts a shadow on the sundial face to indicate the time.
Sundial
A sundial is a very old method to tell the time. The sun casts a shadow on a vertical vane. Where the shadow marks a circular scale, shows the time.
The sun dial was used for telling time. The sundial would cast a shadow so people know what time of day it was by where the shadow fell.
gnomon
A shadow clock, or sundial, tells the time of day using the position of the Sun. The sun casts a shadow from the sundial's style onto a marked surface of hours.