Anders Spole Anders Spole Anders Spole (13 June 1630 – 1 August 1699) was a Swedish mathematician and astronomer. He was born at a farm in , the son of blacksmith Per Andersson and his wife Gunilla Persdotter. At the age of twelve he started studying at Jönköpings skola and was sent to the University of Greifswald in 1652. After three years of studies he continued at other universities in Prussia and Saxony, until his return to Barnarp in 1655, where he started preaching in the local church. He continued to study mathematics at Uppsala University, while at the same time being
Celsius Celsius scale at the triple point of Vienna Standard Mean Ocean Water (VSMOW, 273.16 K and 0.01 °C), and at absolute zero (0 K and −273.15 °C), is that neither the melting nor boiling point of water under one standard atmosphere (101.325 kPa) remains a defining point for the Celsius scale. In 1948 when the 9th General Conference on Weights and Measures (CGPM) in Resolution 3 first considered using the triple point of water as a defining point, the triple point was so close to being 0.01 °C greater than water's known melting point, it was simply defined as precisely