1662: Boyle’s Law

The discovery of the relationship between gas volume and air pressure was published by Robert Boyle in 1662.  It states that air pressure is inversely proportional to the volume it occupies, for a fixed temperature in a closed system. 

The original hypothesis was given to Boyle by Richard Towneley and his assistant Henry Power a year earlier via letter, and publication followed after Boyle and Robert Hooke checked the hypothesis with their own experiments.  In 1676 Edme Mariotte also came to the same conclusion independently but in addition discovered that air volume changes with temperature.

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