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Daniel Sennert

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Name
  
Daniel Sennert

Doctoral advisor
  
Died
  
July 21, 1637, Wittenberg

Role
  
Physician


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Education
  
Martin Luther University of Halle-Wittenberg

Doctoral students
  

Daniel Sennert (November 25, 1572 – July 21, 1637) was a renowned German physician and a prolific academic writer, especially in the field of alchemy or chemistry. He held the position of professor of medicine at the University of Wittenberg for many years.

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Daniel Sennert Daniel Sennert German Physician by Science Source

Biographical information

Daniel Sennert Daniel Sennert German Physician by Science Source

Daniel Sennert was born in 1572 in the city of Breslau (now Wrocław), at the time part of the Habsburg Monarchy. His father, Nicolaus Sennert, was a shoemaker from Laehn, Silesia.

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Sennert attended the University of Wittenberg and received his master's degree in 1598 and his medical degree in 1601. In his early work, he demonstrated an avoidance of alchemical theory and an acceptance of Aristotelian theory. However, within a decade of receiving his medical degree he had changed to accepting alchemical transmutation and experimentation as valid. He published a number of popular books on alchemy and chemistry, several of which received a number of reprintings and translations. He served on the faculty at the University of Wittenberg for the rest of his life, serving six times as the Dean of the medical faculty at Wittenberg, and also served as the physician to many aristocrats and rulers, including John George I, Elector of Saxony. He died of the plague in 1637 in Wittenberg.

Scientific contributions

Daniel Sennert sennerti

Sennert is notable for his contributions to the development of an early version of atomic theory. Specifically, he forms an intermediate bridge between the works of Geber and the more recognized Corpuscularianists such as Robert Boyle. Corpuscularianism differs from modern atomic theory in a number of significant ways, most noticeably a lack of a mathematical argument for its existence, something Sennert specifically rejected. Sennert is an intermediate step between corpsucular particle theory and Aristotelian forms. The same works that are often sited as demonstrating his early atomist views also emphasize the importance of substantial forms. Sennert's theories were based on an experiential and experimental evidence that he gathered both from eyewitness accounts and his own laboratory experience.

Daniel Sennert Daniel Sennert Wikipedia the free encyclopedia

One of Sennert's most notable experiments was a variation on the "reduction to the pristine state." Taking an alloy of gold and silver, the silver was dissolved from the alloy in aqua fortis. In the classic "reduction to the pristine state," the silver was then precipitated out of the aqua fortis by the addition of salt of tartar and then heated in a crucible to return it to its recognizable metallic form. Sennert's innovation on this experiment was the addition of pouring the silver-aqua fortis solution through a paper filter before precipitating the silver from the solution. This experiment was used as evidence that the silver remained in the mixture in the form of minuscule particles, rather than dissolving into its Aristotelian components. It appears to have inspired similar experiments on the part of Richard Boyle and others used to establish acceptance of Corpuscularianism.

Publications


  • Institutiones medicinae (Wittenberg, 1611)
  • Epitome scientiae naturalis (1618)
  • De chymicorum cum Aristotelicis et Galenicis consensu ac dissensu (Wittenberg, 1619)
  • Practicae medicinae (Wittenberg, 1635) in 6 vols.
  • Hypomnemata physicae (Frankfurt, 1636)
  • References

    Daniel Sennert Wikipedia


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