2009
2005
Fold Paper in half any number of times
by jackysee & 3 others (via)有聽過一張紙只可以摺八次嗎?有人用數學研究了這個極限,並突破了將紙摺了十二次!
1
(3 marks)
Founded in late 2003 and heartquartered in France, we are non-profit and independant.
We believe in the open web, think internet services should be sustainable, build for the long term.
While we are re-launching the service, we only accept new members through invitation.