Question

what is sundial? how it is used?

Answer 1

Hi friend,
A sundial is a clock that uses the position of the Sun to indicate the time. Typically a rod casts a shadow upon a plane or surface.
On this surface are found markings that indicate the time by the position of the shadow.But the methods used to extract the data from each sundial are different.

Answer 2

A sundial is a clock that uses the position of the sun to indicate time.Typically a rod casts a shadow upon a plane or surface.On this surface are found markings that indicate the time by the position of the shadow.