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and air was conducted by the 2nd-century BCE Greek writer on mechanics, Philo of Byzantium. In his work ', Philo observed that inverting a vessel over a burning candle and surrounding the vessel's neck with water resulted in some water rising into the neck. Philo incorrectly surmised that parts of the air in the vessel were converted into the classical element fire and thus were able to escape through pores in the glass. Many centuries later

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