From http://www.slightlymadscience.com Silly Chop-Socky Physics Demonstration! Technique, Training, Focus, Power. All are important when trying to break boards bare-handed. However, there are also important physics that explain why the boards are broken. From http://www.slightlymadscience.com "Slag" courtesy of "A Childs First Funeral" (http://www.myspace.com/achildsfirstfuneral)
