Figure 2
Forces during the second-card dealing: “Right” and “left” hand are from the magician viewpoint, respectively. Red and black arrows denote the normal and tangential forces, respectively, and the subscript “1”, “3”, and “f” are forces acted by the top card, the bottom card, and by the finger, respectively, and the superscript“r”, and “l” are the right and the left finger, respectively.