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Sun Shadow Time

Recently WHENWATCH has collected a group of sundial of Red Mountain Culture Stone Age. This sundial conveys an ancient impression of time. When a stylet is inserted into a round hole in the middle of a gnomon, the style angle of the stylet can be adjusted. The stylet must be parallel to the rotation axis of the earth to provide the correct time throughout the year. The angle between the sundial and the ground plane is the geographic latitude of its location.

Sundial guǐ is a device that tells the time of day by looking at the position of the sun. In a narrow sense, it consists of a flat surface (disk surface) and a gnomon that projects shadows on the flat surface to indicate time. As the sun moves across the sky, the shadow edges will align with different timelines, showing the moment in time. The style dial is the edge line indicating the time on the dial, and the date can also be indicated via the node (if any) on the dial. The sundial device can produce obvious shadows, so that the dial can show the time. The sundial can be a stick, metal wire, or elaborately decorated carvings. The sundial must be parallel to the earth’s axis of rotation in order to provide the correct time throughout the year. The angle between the sundial and the ground plane is the geographic latitude of its location.

Broadly speaking, a sundial is any device that uses the height or bearing of the sun (or both) to display time. In addition to the function of providing time, the sundial is often used as part of installation art, literary metaphors, and mathematically learned objects.

The whole stone sundial has obvious traces of artificial handwork, and there are two sundial needles.
Since the ancient Stone Age, ancient China has discovered the relationship between the sun and time. It is likely that the primitive people found that the shadow (projection) of trees will change many times in a day, and the height of the sun will also follow. Variety. This relationship of light and shadow formed the earliest time consciousness (probably longer)
In ancient China, a pole with a standard height of eight feet was erected vertically on a horizontal ground. Observing the change of the pole projection from morning to night during the day can be used to measure the time of the day. Eastern Han Xu Shen’s “Shuo Wen Jie Zi” Cloud: Sundial, day view also. The day view here is the day shadow.

The movement of the shadows produces a visual scenario of time. Time is a concept of the solar system. Maybe the solar system is out. The definition of time will be changed. A day is no longer 24 hours, so time is a concept created by the sun and the earth and human beings.

There are many expressions of time in today’s time, the more extensive are the traditional pointer indication (derived from the principle of sundial), and the digital display (Arabic digital chronograph).

How future time will affect humans and how to appear in human life is a very interesting subject. is the direction pursued by WHENWATCH.TECH design.

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