MEUS VÍDEOS.

http://www.youtube.com/watch?v=wVR409dGf14
http://www.youtube.com/watch?v=kM_wzpi12WY

http://mais.uol.com.br/view/q54n96a5175k/joao-geologo-040264D0A16326?types=A&

 http://www.youtube.com/watch?v=nPPc3HwcmpA

http://www.youtube.com/watch?v=nPPc3HwcmpA

http://www.youtube.com/watch?v=jCi8UGQMG50

http://www.youtube.com/watch?v=KU_FmkWhVg4

http://www.youtube.com/watch?v=u5uMgyGdM58

http://www.youtube.com/watch?v=EiE2g6ou4_4