How to prove that the earth is (not) flat

How to prove that the earth is not flat without leaving your home. A step by step method Follow the following steps Now we perform the following calculations: In my case I got from Google for A = ( lat = 50.62091719914353, lon = 6.961698755042375)andB = ( lat = 50.62096229478388, lon = 6.9615317875405385). The distance… How to prove that the earth is (not) flat weiterlesen