Sun Disappearance

This vedio show us how our earth and live will be if the sun disappear! it's give you inforamation about many things we have no idea about

 http://www.youtube.com/watch?v=rltpH6ck2Kc

Clapping

This is an interesting vedio explain why we clap in spite of the clapping is the most body language noisy!
http://www.youtube.com/watch?v=ZD037VSAG2I&feature=c4-overview&list=UU6nSFpj9HTCZ5t-N3Rm3-HA

https://www.facebook.com/photo.php?fbid=605646182821601&set=a.321540121232210.93623.3194290

74776648&type=1&theater