I watched a show a while back and thought this was interesting. I believe the show was called, "Super Human Powers", but I'm not really sure. Anyway, they were investigating "chi",and they set out to find anyone who could prove that it existed. The search led them to film a dojo where a sensei claimed to be able to knock people over, push them, or actually knock them out cold by using nothing more than chi power. They filmed several demonstrations, and in them he knocked over several students, and did countless tricks controlling his chi and talking about it. It was very impressive as he made people go unconscious, and moved several people without touching them. Students came from far and wide to learn his techniques and how to use chi. Then they brought in a scientist to watch all the demonstrations. He watched carefully, and after seeing many different acts, he challenged the sensei to a match. The scientist said he would stand still, and let any of the teachers try to move him, or effect him in any way, without touching him, as he had done with many students. The chi master stepped close to him, and raised his hands about one foot from the scientists face. He then strained like crazy trying to effect the scientist. He kept trying over and over as the scientist stood untouched. You guessed it, nothing, followed by more nothing. The teacher said, well, he just doesn't believe in chi, that's why it wont work on him...I know someone is going to ask his name and where his dojo is. I cant remember, but im sure if you search for the show on the internet, you could find it.