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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