Geography
State briefly the Bedford Level Experiment.
Planet Earth
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Answer
An experiment was carried out in the Bedford Level canal area in England.
Procedure- Three poles of equal length were fixed at intervals of 5 km. It was ensured that the poles had the same height above the water in the canal.
Observation- When the poles were viewed from one end of the canal, the middle pole looked slightly higher.
Result- This experiment demonstrated that the surface of the earth is curved.
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