I start this sort of weekly segnalation of interesting video on science I found on the web. Hope you like them.

Chemical party
Elements are having a party, but there are some little problems of compatibility…
The video is an educational tools that originally come from here.
This is one of the way you can use a video, attracting surfers with a laugh or a smile.

Social Sciences according to Richard Feynman
Nice and interesting short interview about the public success of social sciences. Here you can watch and listen to Feynman playing his bongos.