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  1. 24 de ago. de 2023 · Alchemy is an ancient practice aimed at recreating precious substances using recipes and transformative materials such as the philosopher's stone. Alchemists believed that materials like gold, silver, gems, and purple dye could be recreated if the right combination of ingredients and transformative methods were found.

    • Mark Cartwright
  2. en.wikipedia.org › wiki › AlchemyAlchemy - Wikipedia

    An important example of alchemy's roots in Greek philosophy, originated by Empedocles and developed by Aristotle, was that all things in the universe were formed from only four elements: earth, air, water, and fire. According to Aristotle, each element had a sphere to which it belonged and to which it would return if left undisturbed.

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    • Nature and significance
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    Alchemy was a form of speculative thought that, among other aims, tried to transform base metals such as lead or copper into silver or gold. It also sought to discover cures for diseases and a way of extending life.

    What are the metals of alchemy?

    Gold, silver, copper, lead, iron, and tin are the metals of alchemy. Mercury and sulfur were also crucial to alchemy.

    Which is the oldest known Chinese text on alchemy?

    The oldest known Chinese alchemical treatise is the Chou-i ts’an t’ung ch’i (“Commentary on the I Ching”). It is mainly an apocryphal interpretation of the I Ching, an ancient classic, relating alchemy to the mystical mathematics of the 64 hexagrams (six-line figures used for divination).

    alchemy, a form of speculative thought that, among other aims, tried to transform base metals such as lead or copper into silver or gold and to discover a cure for disease and a way of extending life.

    That both astrology and alchemy may be regarded as fundamental aspects of thought is indicated by their apparent universality. It is notable, however, that the evidence is not equally substantial in all times and places. Evidence from ancient Middle America (Aztecs, Mayans) is still almost nonexistent; evidence from India is tenuous and from ancient China, Greece, and Islamic lands is only relatively more plentiful. A single manuscript of some 80,000 words is the principal source for the history of Greek alchemy. Chinese alchemy is largely recorded in about 100 “books” that are part of the Taoist canon. Neither Indian nor Islamic alchemy has ever been collected, and scholars are thus dependent for their knowledge of the subject on occasional allusions in works of natural philosophy and medicine, plus a few specifically alchemical works.

    Nor is it really clear what alchemy was (or is). The word is a European one, derived from Arabic, but the origin of the root word, chem, is uncertain. Words similar to it have been found in most ancient languages, with different meanings, but conceivably somehow related to alchemy. In fact, the Greeks, Chinese, and Indians usually referred to what Westerners call alchemy as “The Art,” or by terms denoting change or transmutation.

    Alchemy is a form of speculative thought that tried to transform base metals into gold and to discover a cure for disease and a way of extending life. Learn about the origins, methods, goals, and sources of alchemy in different cultures and times.

  3. 30 de jan. de 2013 · Examples of transmutational alchemys continuation after its 18th-century ‘demise’ probably form only the visible tip of the iceberg. Under such conditions, the Academy of Sciences was more open to claims of metallic transmutation than it would have been previously.

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  4. Goals. “Transmutation” is the key word characterizing alchemy, and it may be understood in several ways: in the changes that are called chemical, in physiological changes such as passing from sickness to health, in a hoped-for transformation from old age to youth, or even in passing from an earthly to a supernatural existence.

  5. Alchemy. Three different sets of ideas and skills fed into the origin of alchemy. First was the empirical sophistication of jewelers, gold- and silversmiths, and other artisans who had learned how to fashion precious and semiprecious materials. Among their skills were smelting, assaying, alloying, gilding, amalgamating, distilling, sublimating, ...

  6. To quote only a few examples: the isolation of mercury around 300 bce; the discovery of aqua vitae (alcohol) and of the mineral acids, both before the thirteenth century; the preparation of vitriol and the alums. But the methods, the ideology, and the goals of the early chemists did not prolong the alchemical heritage.