Nephrology is a newborn speciality compared to the other medical specialities. However, the study of the urinary tract’s physiology and pathology had begun simultaneously with the birth of medicine. The scientific revolution of the renaissance and enlightenment eras caused an intense contestation of earlier theories and methods as if all knowledge had evolved suddenly from parthenogenesis after the dark (?) medieval years and human intellect suddenly exploded to huge intelligence quotients after the 15th century while before that humans were mentally deprived. Indeed most of the scientific knowledge did evolve impressively during renaissance and enlightenment years but not through parthenogenesis. Some observations, discoveries and inventions of this era were actually reobservations, rediscoveries and reinventions. Such an example is that of the experiments of Sanctorius Santorii of the 16th century AD and of Erasistratus of the 3rd century BC. Sanctorius and Erasistratus carried out an experiment with the same basic principles, similar methodology and proportional results with an almost 2000 years lag phase. With our paper we wish to give credit to earlier researchers of physiological and medical knowledge who, despite the lack of technological support, often concluded in extremely accurate observations.

Keywords:
Insensible perspiration, Erasistratus, Santorio Sanctorius, Metabolic balance studies
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© 2000 S. Karger AG, Basel
2000
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