Definitions
In retrospect, the definition of chemistry seems to invariably change per decade, as new discoveries and theories add to the functionality of the science. Shown below are some of the standard definitions used by various noted chemists:
- Alchemy (330) – the study of the composition of waters, movement, growth, embodying, disembodying, drawing the spirits from bodies and bonding the spirits within bodies (Zosimos Zosimos of Panopolis was a Greek-Egyptian alchemist and Gnostic mystic from the end of the 3rd century and beginning of the 4th A.D., who was born in Panopolis, present day Akhmim in the South of Egypt, ca. 300. He wrote the oldest known books on alchemy, of which only quotations in the original Greek language or translations into Syriac or Arabic).[25]
- Chymistry (1661) – the subject of the material principles of mixt bodies (Boyle Robert Boyle was a natural philosopher, chemist, physicist, inventor, and gentleman scientist, also noted for his writings in theology. He is best known for the formulation of Boyle's law. Although his research and personal philosophy clearly has its roots in the alchemical tradition, he is largely regarded today as the first modern chemist, and).[26]
- Chymistry (1663) – a scientific art, by which one learns to dissolve bodies, and draw from them the different substances on their composition, and how to unite them again, and exalt them to a higher perfection (Glaser).[27]
- Chemistry (1730) – the art of resolving mixt, compound, or aggregate bodies into their principles; and of composing such bodies from those principles (Stahl Georg Ernst Stahl , was a German chemist and physician).[28]
- Chemistry (1837) – the science concerned with the laws and effects of molecular forces (Dumas Jean Baptiste André Dumas , was a French chemist, best known for his works on organic analysis and synthesis, as well as the determination of atomic weights (relative atomic masses) and molecular weights by measuring vapor densities. He also developed a method for the analysis of nitrogen in compounds).[29]
- Chemistry (1947) – the science of substances: their structure, their properties, and the reactions that change them into other substances (Pauling Linus Carl Pauling was an American chemist, peace activist, author, and educator. He was one of the most influential chemists in history and ranks among the most important scientists in any field of the 20th century. Pauling was among the first scientists to work in the fields of quantum chemistry, molecular biology, and orthomolecular medicine).[30]
- Chemistry (1998) – the study of matter and the changes it undergoes (Chang).[31]
<<Table of Contents Chemistry (from Egyptian kēme , meaning "earth") is the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions. It is a physical science for studies of various atoms, molecules, crystals and other aggregates of matter whether in isolation or combination, | Next>> | Show All>>
