Fahrenheit reference points became popular following the work of Anders Celsius and these fixed points were adopted by a committee of the Royal Society led by Henry Cavendish in 1776. Under this system, the Fahrenheit scale is redefined slightly so that the freezing point of water is exactly 32 °F, and the boiling point is exactly 212 °F or 180 degrees higher. It is for this reason that normal human body temperature is approximately 98° (oral temperature) on the revised scale (whereas it was 90° on Fahrenheit's multiplication of Rømer, and 96° on his original scale). The Rankine temperature scale was
Bo, Sierra Leone which is a dust laden wind from the Sahara Desert during the dry season. Average temperature ranges in Bo are from 21 degrees Celsius (73 degrees Fahrenheit) to 31 degrees Celsius (88 degrees Fahrenheit) all year. Bo has an ethnically diverse population, although the Mende make up the largest ethnic group. The city is home to a significant numbers of many of the country's ethnic groups as well as a large Liberian community. The population of the city is about equal in numbers between Muslims and Christians. In 1981 Bo District formed a 'One World Link' (OWL) with Warwick District