Question

Long Answer Type
Explain the sundial, water clock and sand clock
with diagram​

Answer 1

Sundial is based on the fact that the position and length of shadow cast by an object. ... The position of the shadow is utilized to mark the time of the day. Sand Clock/ Hour Glass. Sand clock is made up of two rounded glass bulbs which are connected by a narrow neck of glass.Models filled with sand or powder are called hourglasses; water clocks are also referred to by the original Greek name clepsydrae. The passage of time was measured by the quantity of water or powder that had flowed into the lower vessel, or by the decrease in the level of the substance in the upper vessel.

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