vários links

 

Pythagoras' Theorem. 35 proofs of the Pythagorean theorem!!!
http://www.cut-the-knot.com/pythagoras/
http://www.geometry.net/Theorems_and_Conjectures/Theorem_of_Pythagoras.htm


Divina proportione
http://www.newton.cam.ac.uk/wmy2kposters/january/

http://www.summum.org/phi.htm
http://www.geometry.net/cgi-bin/data/search.cgi?search=Divina+proportione
http://www.geometry.net/cgi-bin/data/search.cgi?search=golden+section


Gallery of Interactive Geometry
http://www.geom.umn.edu/apps/


Outras interessantes
http://www.geocities.com/jtaylor1142001/index.html
http://webboard.mathboard.com:8080/~algebra/guests?hidden=
http://www.alincom.com/educ/math.htm
http://www.theory.csc.uvic.ca/~mmania/index.html

 

Manchas Solares
http://sohowww.nascom.nasa.gov/sunspots/
http://sohowww.nascom.nasa.gov/bestofsoho/PAGE3/
http://www-istp.gsfc.nasa.gov/istp/outreach/cmeposter/images/bubble2big.jpg