Archimedes ( Αρχιμήδης ) 阿基米德

http://archimedes2.mpiwg-berlin.mpg.de/archimedes_templates/popup.htm

Archimedes' Lever http://www.math.nyu.edu/~crorres/Archimedes/Lever/LeverIntro.html

Silberwolf (size changed by: Jahobr)

• derivative work: Pbroks13 (talk)
• Archimedes_sphere_and_cylinder.png: André Karwath aka Aka

Archimedes - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Archimedes
阿基米德 - 维基百科，自由的百科全书 http://zh.wikipedia.org/wiki/%E9%98%BF%E5%9F%BA%E7%B1%B3%E5%BE%B7
Design Context Blog: Archimedes... http://s-perkins0912-dc.blogspot.com/2011/01/archimedes_26.html