16 (number) old days, weighing was done with a beam balance to make equal splits. It would be easier to split a heap of grains into sixteen equal parts through successive divisions than to split into ten parts. Chinese Taoists did finger computation on the trigrams and hexagrams by counting the finger tips and joints of the fingers with the tip of the thumb. Each hand can count up to 16 in such manner. The Chinese abacus uses two upper beads to represent the 5s and 5 lower beads to represent the 1s, the 7 beads can represent a hexadecimal digit from
Kanguera used for user friendly human machine interface and for upper limb rehabilitation technologies. The hand has an anthropomorphic shape, and is the size of a large human hand. It has 4 fingers, and a simplified thumb, each one with four degrees of freedom (DOF). Each finger is treated as an individual robot, giving the overall system, from the wrist on, 20 DOF in total. The fingers are constructed from a special resin, and the joints are designed to mimic human joints - they are not physically joined, but in close contact, using the resin's friction and cables to work together.