Propose an experiment using only a camera and/or the sensors of your smartphone to prove or disprove the flat Earth hypothesis. Using the same equipment, estimate the size of the Earth with as high accuracy as possible.
5.75
4.75
8.00
9.20
5.50
6.40
7.20
4.25
6.00
7.00
6.20
7.40
6.50
MEAN
6.16
6.93
6.78
