Demos: 1T-02 Bed of Nails
The Bed of Nails demonstration emphasizes the concept of pressure which is the ratio of force to area. You can lay on the bed of nails unharmed because you are spreading your weight over a large area (hundreds of nail tips even though the area of each nail tip is very small). Consequently, the pressure that is exerted on your body by the nails is less than the pressure needed to puncture your skin. Male members, it is suggested that you remove your shirt in order to protect it from harm when participating in this demonstration.