Expansion of air by heat: illustration of demonstration by the Greek engineer Philo of Byzantium (c280-c220BC) also called Philo Mechanicus. Sphere contains water and air. Sun's heat causes air to expand and water is forced through tube into flask. Engraving from ''Utriusque cosmi,historia'' by Robert Fludd,Oppenheim 1617-19 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / UIG / Universal History Archive |
Taille de l’image : | 5100 px × 3781 px |
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Property Release : | Non requis |
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