Illustration depicting Robert Fludd's thermoscope (centre),an early air thermometer,drawn in the centre of a globe representing the universe. Fludd (1574-1637) was a religious mystic who sought to bring together the macrocosm of the universe with the microcosm,man. He believed that circling of the Sun around the Earth caused the circulation of air & blood in the body. A universal expansion & contraction affected both macrocosm & microcosm,& was visible in the thermoscope. The thermoscope consists of an air-filled bulb (top) connected to a reservoir of water (bottom) by a graduated tube. The air in the bulb expands & contracts with temp- erature,causing the water level to rise & fall | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
Taille de l’image : | 4939 px × 3749 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |