It was used to tell the time and knowing the time even the aproximate time is quuite useful
Because there is no sun at night. So you can't use a SUNdial at night. Also, sundials have to be outside. Clocks work at night and don't have to be outside.
Sundials are most useful in the summer because the sun is higher in the sky, casting a more defined shadow on the sundial's face. This allows for more accurate time readings compared to other seasons when the sun's angle is lower and shadows are longer.
I have a sundial in the garden.The sundial were the earliest form of clocks.
He used a portable sundial.
The answer depends on what is wrog with the sundial.
The pin of a sundial is called a gnomon. It is the part of the sundial that casts a shadow onto the dial face to indicate the time.
Theodosius of Bithynia invented the sundial.
The vertical pointer on a sundial is the gnomon.
The pointer on a sundial is called a gnomon. It casts a shadow on the sundial face to indicate the time.
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?
gnomon