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
Counting of the Omer forty-ninth day, one should review all the "ways." Counting of the Omer Counting of the Omer (, Sefirat HaOmer, sometimes abbreviated as Sefira or the Omer) is an important verbal counting of each of the forty-nine days between the Jewish holidays of Passover and Shavuot as stated in the Hebrew Bible: . This "mitzvah" ("commandment") derives from the Torah commandment to count forty-nine days beginning from the day on which the "Omer", a sacrifice containing an "omer"-measure of barley, was offered in the Temple in Jerusalem, up until the day before an offering of wheat was brought to the Temple