Aristarchus' and Eratosthenes' estimates of the Earth's size
The size of the Earth was measured in antiquity by several scientists. Among them, Aristarchus' (reconstructed) value suggests a smaller Earth, while Eratosthenes' points to a larger one compared to our best estimate. Feel free to explore how these two ancient estimates compare for different values of the ancient Greek stade, as well as for various approximations of pi, ranging from 3 (the smallest) to the Egyptian fraction 256/81 (the largest), with the Babylonian fraction 25/8 as default.