Finger binary Finger binary Finger binary is a system for counting and displaying binary numbers on the fingers of one or more hands. It is possible to count from 0 to 31 (2−1) using the fingers of a single hand, or from 0 through 1023 (2−1) if both hands are used. In the binary number system, each numerical digit has two possible states (0 or 1) and each successive digit represents an increasing power of two. Note: What follows is but one of several possible schemes for assigning the values 1, 2, 4, 8, 16, etc. to fingers, not necessarily the best.
Thumb tip as an actor. Magicians have used modified thumb tips to accomplish different effects. A thumb tip with a slit in the tip can be used like a dye tube to apparently change the color of a silk . In this case, a colored silk is preloaded into the tip. The magician steals the tip into the left fist, then pokes a white silk into the tip while alternately pulling the colored silk out from the other end. A thumb tip with a small suction cup attached to the tip can be used to create the illusion of floating small objects