Simple and fun

One of my team mates sent me yesterday the link of a small physics based game:

http://FantasticContraption.com

Solve the different puzzles is really fun (after #12 get's harder), but compare your own solutions with your friends it's just awesome.

After solving the #13 compare your solution with mine (as a feature, it allows to save the solution and gives you a link you can send to your friends):

#13 - http://FantasticContraption.com/?designId=684627

Edited:
#14 - http://FantasticContraption.com/?designId=686419
#16 - http://FantasticContraption.com/?designId=687704

I have to say that it's not easy to catch my attention right now, but this game it's so fun, I couldn't avoid playing it and sending the link to my friends.

Enjoy!

J.