Fahrenheit He then re-calibrated his scale using the melting point of ice and normal human body temperature (which were at 30 and 90 degrees); he adjusted the scale so that the melting point of ice would be 32 degrees and body temperature 96 degrees, so that 64 intervals would separate the two, allowing him to mark degree lines on his instruments by simply bisecting the interval six times (since 64 is 2 to the sixth power). Fahrenheit observed that water boils at about 212 degrees using this scale. The use of the freezing and boiling points of water as thermometer fixed
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