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Bedford level experiment
series of observations carried out along a six-mile length of the Old Bedford River in an attempt to determine the shape of the Earth / From Wikipedia, the free encyclopedia
The Bedford level experiment is the name for a series of observations, done on the Old Bedford River, in Cambridgeshiire. These observations were done to measure the curvature of the Earth. Samuel Rowbotham made the first observations, in 1839. He claimed that with these observations he could prove that the earth was flat. In 1870, Alfred Russel Wallace used the same observations but made small changes, to correct for some errors. Using these observations, he could prove that the Earth was a sphere.[1]
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