The Bedford Level Experiment was a series of observations carried out along a six-mile length of the Old Bedford River on the Bedford Level, Norfolk, England. The experiment was often performed during the nineteenth and early twentieth centuries. Most results have served to prove Flat Earth Theory, and although a few have claimed otherwise they have been soundly disproved by Flat Earthers. The Bedford Level Experiment remains one of the most widely-accepted examples of Flat Earth proof. Bedford Level Experiment - The Flat Earth Wiki