Fan (machine) the airflow from the fans. Thus, fans may become ineffective at cooling the body if the surrounding air is near body temperature and contains high humidity. The punkah fan was used in India about 500 BCE. It was a handheld fan made from bamboo strips or other plant fibre, that could be rotated or fanned to move air. During British rule, the word came to be used by Anglo-Indians to mean a large swinging flat fan, fixed to the ceiling, and pulled by a servant, called the punkawallah. For purposes of air conditioning, the Han Dynasty craftsman and engineer Ding
Primitive data type a program, adding to the operations that can be performed on them or even redefining the built-in operations. The actual range of primitive data types that is available is dependent upon the specific programming language that is being used. For example, in C#, strings are a composite but built-in data type, whereas in modern dialects of BASIC and in JavaScript, they are assimilated to a primitive data type that is both basic and built-in. Classic basic primitive types may include: More sophisticated types which can be built-in include: An integer data type that represents some range of mathematical integers. Integers