Explain the principal behind sundial?

1.	Explain the principal behind sundial?
Answer» HI friend...... here's UR answer.... When the earth rotates about its axis, the sun appears to “move” across the sky, causing objects to CAST shadows. A sundial contains a gnomon, or a thin rod, that casts a shadow onto a platform etched with DIFFERENT times. As the sun changes relative positions over the course of a day, the rod’s shadows change as well, thus reflecting the change in time. Hope it helps.....

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Explain the principal behind sundial?

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