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
Tonantins Tonantins Tonantins is a municipality in Amazonas, in northwest Brazil. Its population was 17,079 as of 2005, all of which were Brazilians. It is on the Amazon River and is 867 km upstream (west) of Manaus, the state capital. The municipality is directly east of and overlaps parts of the Jutaí-Solimões Ecological Station. It is only accessible via boat. The temperature is almost always between 23 degrees Celsius (74 degrees Fahrenheit) and 31 degrees Celsius (87 degrees Fahrenheit). It is a rainforest humid climate, and the rainy season lasts 8.5 months per year, from mid-October to June. The primary economy