Some thing to whet your appetite: Physicist Jearl Walker explains the physics of a few judo and aikido techniques.
- Physics: By pushing and pulling simultaneously we generate turning forces (also known as torques).
- Bio-mechanics: We apply these torques to twist, turn, lock and/or throw our partners.
- Psychology: The majority of people when pushed, push back; when pulled, pull back. If instead you respond to a push with a pull; or initiate by pushing, get the expected push-back, and switch smoothly to a pull, you can begin to co-opt your partners force and use it against them. Etcetera.
Next up: Ways to push and pull.