How is earth's radius measured ?
Asked by | 3rd Aug, 2008, 10:30: AM
Expert Answer:
The time it takes for the Sun to disappear-reappear-then-disappear-again is related to the angle through which
the Earth has rotated between these disappearances. By measuring the time accurately, you can calculate the
angle accurately by using following formula:
Δt/24 hours = angle earth moved/360o
Answered by | 8th Aug, 2008, 01:29: AM
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