This is how the glass looks like after an impulse strike by Igor Kalinauskas. The strike was delivered by the little finger of his right hand. The glass remained immovable. Impulse strike was combined with a strike by the sharp of the same hand into a filled bottle which was thrown into the distance of 10 m. The strike was made by the technique of Master Min School, based on DFS.
It was witnessed by P. Shvaikovskiy, A. Sabanov, A. Inzhevatkin, I. Sarpinskiy, V. Veremeenko, S. Petrushin, S. Kuptsov, V. Strukov, S. Kirillov and others.
Kazan. April 2009
Impulse strike is one of numerous methods of application of force in many martial arts. Short or ‘fast’ wave is a jerky vibration or impulse that begins and ends instantly. In contrast to a long wave that doesn’t pass through the object, but remains inside, short wave doesn’t waste energy on transmission of forward motion to the body and struggle with inertial forces, but materializes entirely in destruction. That’s why one of the main characteristics of a real and mighty impulse strike is immobility of the struck object. By a short impulse strike the energy generated in legs moves as a wave through the spine, shoulder girdle and arm into the hand that transmits the force to the chosen point. The strike can be compared with a blow of lush. The energy, generated in the handle, moves as a wave along the whole lush and terminates at the very end, producing a blow of a considerably great force. The general principle of impulse strike consists in instant transmission of energy through relaxed body from the point of its concentration to the point of its application.
The word impulse derives from Latin impulsus ‘strike’, ‘push’. In mechanics impulse is considered as fundamental physical quantity that characterizes the motion of a system.
Impulse of force is a quantity that characterizes the influence of force on the system.
The word resonance derives from Latin resono ‘respond’. Resonance is a vibration of large amplitude in a mechanical or electrical system caused by a relatively small periodic stimulus of the same or nearly the same period as the natural vibration period of the system.