Family name. The family name, positioned first, is passed on by the father to his children. It is estimated that there are around one hundred family names in common use, although some are far more common than others. The name Nguyá»n is estimated to be used by almost 40% of the Vietnamese population.
The Doldrums . The Doldrums, also known as the Equatorial Convergence Zone. The axis, or a portion of the broad trade wind of the tropics. This axis is the dividing line â¦ between the southeast trades and the northeast trades, of the Southern and Northern hemispheres converging around the equator.
They called this area the doldrums. The doldrums, or ITCZ, are part of the general circulation system of Earth. Parts of the system are the Hadley cells, and the doldrums at the Equator are the key to making them work. Warm air rises at the doldrums, travels north and south until it cools and sinks, then returns to the Equator as the trade winds.