December 2009
5 posts
Dec 30th
52 notes
Banach-Tarski Paradox
“Did you know that it is possible to cut a solid ball into 5 pieces, and by re-assembling them, using rigid motions only, form TWO solid balls, EACH THE SAME SIZE AND SHAPE as the original? This theorem is known as the Banach-Tarski paradox.”
Dec 8th
Dec 8th
119 notes
8 tags
Dec 8th
2 tags
WatchWatch
So I was pen spinning the other day.  This is IMPORTANT!
Dec 8th