Clepsydra and electronic clock
Already he is concerned with the relativity of time. Since the beginning of time, man has been involved in trying to perfect the measuring of time. Early on, nature served as a measure of time, and precision was not a concern.
It is only in recent centuries that being able to precisely measure time has been indispensable. At the bottom and in the center one sees an Egyptian hieroglyph that signifies water clock (clepsydra). In the center, a water clock that rotates every hour.
In this creation we can read the time in 3 ways, the height of the water jet, the quantity of water flowing into the lower sphere or the quantity of water remaining in the upper sphere.
The clepsydra is associated with a luminous led clock synchronized with the atomic clock.
On the side is arranged a clock with diodes indicating the hours and the minutes. 1 luminous point moves to indicate the hours. A series of light points indicate the number of minutes that can be related to the filling level or height of the jet of water from the clepsydra.
Its precision is only relative, and is influenced by temperature. In those days, an absolute precise time was not necessary. At the top right, one can see a radio antenna. It serves to synchronize the system by receiving signals from an atomic clock.
It can be discovered day and night, rue du prince Eugène in Rueil Malmaison.
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3 m 30 x 2 m x 45cm
Grès céram, stainless steel, glass, LED
Entrance yard of the College Malmaison in Rueil.