Sundials, which models the oldest dating back to antiquity, was one of the earliest objects used by humans to measure time.
Sundials are fascinating objects to more than one way: both measuring instruments and objects of art, they arouse the curiosity of experts as novices.
The sundial was one of the earliest objects made by man to measure the passage of time. The oldest examples were found in Egypt. This measuring instrument was also known and used by the Greeks and Romans.
Models found by archaeologists testify to the evolution of knowledge in astronomy in different cultures and different eras.
Science dials or "gnomonic" is a branch of astronomy, which culminated in the eighteenth century.
Sundials indicate, by a shadow or a bright spot, the position of Earth from the Sun throughout the day.
Sundials can read instead of solar time. This time differs from the standard time (Time of shows ) according to the seasons, the longitude of the place and any passages in the summer time.
Children can easily make a sundial. There is little kit easy to assemble their understanding will become familiar with solar time.
sundial is the only that does not require the use of a compass. From a very easy to use and easy to carry in a pocket or small bag.
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