The Earth Is Not Flat

Three arguments for a spherical earth are presented. The first is new, as far I know. The other two repeat arguments from the ‘old greeks’. I think that it is necessary to record them. For the first argument, we need modern technique like telephones or mobiles.

The authors declare no conflict of interest.

Not applicable

The datasets used in this study are openly available at [repository link] and the source code is available on GitHub at [GitHub link].

This work did not receive any external funding.