Making a Sundial
3 years ago
89
One way that we observe the effect of Earth's rotation is by the sun's changing position in the sky over the course of a day. A sundial is a device that allows us to tell the time on a sunny day by using the sun's position relative to us to cast a shadow that moves as the earth rotates. In this video we see how we can make a simple sundial to observe this change.
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