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Robert Boyle publishes "New Experiments and Observations touching Cold"
Boyle hypothesizes a theoretical extreme to temperature on earth. -
Mercury Spring Experiments
Guillaume Amontons calculates absolute zero to be -240 degrees celsius. -
Treatise on Heat
Laoplace and Lavoisier place absolute zero at 3000 degrees below 0. Their refutation of Amontons thermometer is widely accepted. -
Kelvin Scale
Lord Kelvin uses independent physical properties based on atomic theory to propose an absolute scale placing zero at -273 degrees celsius. Almost identical to the modern value of 173.15.
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