In the long list of the demonstrations of the of the Earth’s round shape, probably the last but quite pittoresque consists in using a clever montage of a total lunar eclipse’s phases, where the shadow is composed in a neat circle [source: https://t.co/RzhGaY3Uy7] pic.twitter.com/aziVRdhg5Y

— Massimo (@Rainmaker1973) March 21, 2021