I thought, I'd post this little entertaining documentary, since I am a practitioner of Aikido myself and recommend it more than any other martial art, especially because of the mental aspects involved.

"A well done documentary. Nicholas Pettas plays the part of skeptic in the beginning with his history in competitive martial arts. The interactions between the Sensei, scientists, and himself were respectful and dignified. The explanations for the Aikido are in line with many layman-style interpretations of Aikido." accidentalaikidoist.wordpress.com