Mercury poisoning and the origins of the phrase ‘mad as a hatter’.
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Mercury poisoning and the origins of the phrase ‘mad as a hatter’.
The story of the discovery of the Hall-Heroult process for purifying aluminium.
He invented the alcohol thermometer (1709) and mercury thermometer (1714). He also developed the Fahrenheit temperature scale by reference to three fixed points of temperature, where a mixture of ice, water and ammonium chloride was taken as 0 °F.
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