Venkatesh Rao@vgr·Jan 4, 2021I'm blanking on the name of an early Italian mathematician/astronomer, name begins with B I think... guy who first challenged the idea of a "celestial sphere" and that the stars were at varying distances etc. Help?63
Joost Plattel@jplattel·Jan 4, 2021Replying to @vgrNo Nicholas Bourkaki? https://wikiwand.com/en/Nicolas_Bourbaki… ? :)wikiwand.comWikiwandWikiwand is the world's leading Wikipedia reader for web and mobile.