BJJ Mental Models Mini Ep. 39: Surface Area
Jan 30, 2025
Dive into the intriguing concept of surface area in jiu-jitsu. Discover how applying force through a minimal surface area can create maximum pressure, illustrated by the 'shoulder of justice' crossface pin. Learn about the psychological tactics for outmaneuvering larger opponents while discussing various benefits of minimizing surface area. This episode blends physical insights with strategy, enhancing your understanding of pressure in the grappling art.
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Pressure in Physics
- Pressure, in physics, is force divided by surface area.
- Maximize pressure by maximizing force and minimizing the contact area.
Knife vs. Spoon Analogy
- A knife stab hurts more than a spoon stab due to the smaller surface area concentrating the force.
- This example illustrates how smaller surface areas create higher pressure, even with equal force.
Shoulder of Justice
- In side control, maximize pressure by minimizing contact points, focusing force through smaller areas like the shoulder.
- This 'shoulder of justice' technique delivers gravity's force through a small area for high pressure.