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
Nasal reconstruction using a paramedian forehead flap paramedian forehead flap. However, the vertical paramedian forehead flap based on the ipsilateral or contralateral supratrochlear vessels has become standard, because it has a low turning point, making it easy to reach the defect without using hair-bearing scalp. Also, primary closing of the proximal forehead is possible as a result of the narrow pedicle. Lateral nasal defects are usually closed with an ipsilateral paramedian forehead flap. Central nasal defects can be reconstructed using either a right- or left-sided forehead flap. The ipsilateral pedicle is closer to the defect than the contralateral pedicle, therefore the flap can be made shorter when