The Chinese abacus is thought to have been created by a famous mathematician Cheng Dawei of the Ming Dynasty between 1368 and 1644. A typical elementary abacus has 10 parallel wires strung between two boards on a frame, with nine beads on each wire. Each bead has a value of 10, a multiple or sub multiple of 10.
The definition of a snigger is a contained or half held-in laugh. An example of a snigger is a quiet laugh behind a person's back. Snigger is defined as to snicker or hold back a laugh. An example of snigger is to secretly laugh at someone behind their back.
One definition of âenigmaâ is âsomething hard to understand or explainâ (Merriam-Webster, 2009). Persons practicing in the field of family and consumer sciences know who they are and what they do, but communicating this purpose to those outside of the field has proven challenging.