Article ID: CBB723961009

The “Bitul B’shishim (one part in sixty)”: Is a Jewish conditional prohibition of the Talmud the oldest-known testimony of quantitative analytical chemistry? (2018)

unapi

Accomplishments of Hellenistic science and technology in some fields, such as mathematics, physical cosmology and engineering, has recently been re-evaluated and can be considered as of the same level that the scientific revolution in Western Europe reached at the beginning of the XVII century CE. Information on the level of chemical science is scanty; however, independent ancient sources such as the Jewish Talmud can yield significant clues. The still existing dietary laws include a practice to assess the acceptability of food mixtures with two complementary assessment techniques. One enforces a specific minimum mixing ratio (1:60) of unacceptable-to-acceptable ingredients, the other uses a sensory assessment to exclude the presence of a tasty unacceptable ingredient. This practice is likely the first historical example of quantitative analytical chemistry. This article collects clues that this approach is rooted in the implicit acceptance by Hellenistic chemical science of an atomic paradigm and on the awareness that interaction of different matter yields product that are different from the starting ones. Quantitative assessment of the presence of unacceptable ingredients by sensorial assessment or by mixing ratio likely points to a forgotten practice of Hellenistic experimental pharmacology and physiology to test the efficacy of drugs and poisons, that was performed in animals, with the use of a control group, and on human subjects.

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Authors & Contributors
Hoz, María Paz de
Cohen, Stephen M.
Ginsburg, Lawrence M.
Lurie, Samuel
Zivotofsky, Ari Z.
Schrader, Shlomo R.
Journals
Aleph: Historical Studies in Science and Judaism
Vesalius
Geographia antiqua
Korot: The Israel Journal of the History of Medicine and Science
Review of General Pyschology
International Journal of Middle East Studies
Publishers
de Gruyter
Peter Lang
Concepts
Jewish civilization and culture
Jews
Medicine
Talmud
Interdisciplinary approach to knowledge
Medicine and religion
People
Eratosthenes of Cyrene
Strabo
Maimonides
Einstein, Albert
Alter, Georg
Asclepius of Epidaurus
Time Periods
Ancient
20th century, early
20th century
19th century
Medieval
2nd century
Places
Hellenistic world
Egypt
Alexandria (Egypt)
Mediterranean region
Italy
Eastern Europe
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