Tom Houpt
tomhoupt.bsky.social
Tom Houpt
@tomhoupt.bsky.social
Archimedes calculated it would take 10^63 grains of sand to fill the universe (as understood c250 BCE): en.wikipedia.org/wiki/The_San...
The Sand Reckoner - Wikipedia
en.wikipedia.org
October 23, 2025 at 4:42 PM
In Europe, Alcmaeon of Croton (c 500-450 BCE) was the first Greek to propose the brain as the seat of understanding.
July 23, 2025 at 3:26 PM
Alexandria.
March 1, 2025 at 10:09 PM