![De Arenae Numero Libellus [Latin] 1148573313 Book Cover](https://i.thriftbooks.com/api/imagehandler/l/D1646FAD1997E570A234C813AF328307696207B5.jpeg)
De Arenae Numero Libellus, or "The Sand Reckoner," is a mathematical work by Archimedes in Latin, in which he sets out to determine an upper bound for the number of grains of sand that would fit inside the universe. This work is notable for several reasons: it is an...