Actually, Galileo wasn't the person who discovered that the earth was a sphere.
me...
issac newton
He discovered that the earth was a sphere.
Democritus
A sphere.
What's more important is knowing the formulae for a sphere which are:- Volume of a sphere = 4/3*pi*radius3 Surface area of a sphere = 4*pi*radius2
Archimedes.
He discovered that the Earth was a sphere instead of a cube
He discovered that the Earth was a sphere instead of a cube
JJ Thomson discovered electrons. He was the first to show that an atom was not an indivisible solid sphere.
aryabhata