Hello! My name is Anders Celsius. I was born in Uppsala, Sweden on November
27, 1701. I was born into a very highly scientific and scholarly family. My grandfathers
were both astronomers and my father, Nils Celsius, was an astronomy professor at the
Uppsala University. Also, I studied at the University of Uppsala, became secretary of
Uppsala’s scientific society, and succeeded my father as the professor of astronomy there
I traveled for several years to further my studies. I went on an expedition into
Lapland with the French astronomer, Pierre-Louis Maupertuis, to measure a degree on
longitude. My first stop traveling was the new observatory in Berlin. Then, I traveled to
Nuremberg and published writings of my own. After, I visited Venice, Padsa, and
Bologne before continuation on to Rome and then Paris. I went to London to help
Maupertuis to prove a theory a while after.
In 1737, I returned to Uppsala and took over Sweden’s first modern observatory.
This opened in December of 1742. Also, upon my return, I began a series of observations
using colored glass plates to record the magnitude of certain stars. This led to the first
attempt to measure the intensity of starlight with a tool other than the human eye.
I am known for creating a hundred-point scale for temperature. However, I am not
the first to do this. The difference is that I modified and assigned the freezing and boiling
points of water as the constant temperature at either end of the scale. Unlike Fahrenheit, I
based my scale on two fixed points: the boiling and melting points of water. I first
assigned the boiling point at 0 degrees and the melting point at 100 but soon reversed
this. In the competition between me and Fahrenheit’s temperature scales, I finally won
because my scale was adopted by the scientific community and used in almost all scientific work.
I originally called my scale...
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