My facebook friends will have to forgive me because I already posted one of these videos and several pictures of the setup, but I couldn't help myself. It was so fun to see M attempting something difficult, sticking with it, making adjustments, and the absolute thrill on his face when the light came on on the fifth run.
Look at his eyes when the light goes on. He's a nerd at heart, just like me. I couldn't be prouder.