What was the original Celsius scale before Christin's proposal?
0° boiling, 100° freezing
100° boiling, 0° freezing
50° boiling, 0° freezing
0° boiling, 50° freezing
Answer
Before Jean-Pierre Christin's proposal, the Celsius scale had water boiling at 0 degrees and ice melting at 100 degrees. Christin reversed the scale, making 0 degrees the freezing point of water and 100 degrees the boiling point of water.
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