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  • ...ver eons, and thus sodium and {{w|chlorine}} are the most common dissolved elements by weight in the oceans. ...rs}}, ''Types of Graphic Representation of the Periodic System of Chemical Elements'' (1957)]] ...
    50 KB (8,051 words) - 22:41, 22 February 2022
  • ...ive Introduction'' (ca. 900) as quoted in Martin Levy, ''Chemistry and the Chemical Technology in Ancient Mesopotamia'' (1959) p. 39. ...ere is another type of exploding supernova that also seeds the Galaxy with elements. This is the {{w|type Ia supernova}}. This explosion involves a binary syst ...
    43 KB (6,749 words) - 18:37, 1 April 2024
  • ...ancient Egyptians... had a considerable knowledge of processes essentially chemical in their nature.''' ...The operations of chemistry as performed by them wer ...cohol]]'' by processes of {{w|fermentation}} is probably the oldest of the chemical arts.''' The word vine means, in fact, a ''product of {{w|fermentation}}''. ...
    84 KB (13,238 words) - 05:01, 1 March 2024
  • ...pagation of heat, to problems of the integral [[calculus|calculus]], whose elements are given by experiment. No subject has more extensive relations with the p ...sm}} is thermodynamics.''' ...[I]n this context ...the [[Chemical reaction|chemical need to react]] (to dissipate [[energy]]) '''in the same way that water nee ...
    31 KB (4,814 words) - 21:30, 12 February 2025
  • ...[w:Atomic emission spectroscopy|flame spectra]]... The fact that different elements emit light with different color characteristics is exploited by the makers ...es a chord where sunlight produced all possible tones—"white noise." Other elements produce other chords. ...
    30 KB (4,761 words) - 19:09, 12 November 2024
  • ...of the Geological Survey, our laboratory was officially connected with the chemical laboratory. Conformably with the further decision of the Director, by which ...termediary rôle since that time.<br />In the preparation and use of thermo-elements Barus also made much more extensive and elaborate studies than any one who ...
    18 KB (2,875 words) - 09:24, 20 October 2024
  • ...ut if emitting only, when their energy content is a whole number of energy elements, a case thus involving the entropy probability of [[Ludwig Boltzmann|Boltzm ...to the lowest form of energy, i.e., undirected heat movement of molecules; chemical systems tend toward equilibria with maximum entropy; machines wear out owin ...
    66 KB (10,429 words) - 21:25, 12 February 2025
  • ...iestley]]'s and [[Antoine Lavoisier|Lavoisier]]'s analyses and decoding of chemical reactions destroyed the word "phlogiston."<!--pp. 95-96--> ...oided, for "it is the grand object of all theory to make these irreducible elements as simple and as few in number as possible." For example, it was, in his vi ...
    22 KB (3,321 words) - 13:54, 31 May 2022
  • ...lium|antihelium]]. Theory allows anti-atoms corresponding to the known {{w|chemical element}}s. The {{w|baryon asymmetry}} of matter and antimatter in the {{w| ...duced just before being injected... To do this, the corresponding [common] elements are bombarded with protons... from a small [[w:Particle accelerator|acceler ...
    60 KB (9,289 words) - 21:05, 3 July 2021
  • ...Chancellor of the University of Oxford. (August, 1894) as quoted in ''The Chemical News and Journal of Industrial Science'' ed., [[William Crookes]], [https:/ ...ical units which have not yet been subdivided, and 'molecules' for physico-chemical units which are aggregates of the former. And these individualised particle ...
    54 KB (8,823 words) - 23:28, 11 February 2025
  • * In these days an infinite number of chemical tests would be available. But then Archimedes had to think... afresh. The s * '''[T]he various elements or factors which enter into a set of circumstances... are merely... lengths ...
    32 KB (5,251 words) - 08:17, 28 February 2024
  • ...he two forms, if either, the energy which comes out as heat existed in the chemical process. For such a case the {{w|conservation of energy}} is only a probabl ...it in the complex forms of conscious feeling and thought, but the simpler elements out of which thought and feeling are built up.''' The hypothetical ultimate ...
    47 KB (8,220 words) - 01:17, 13 November 2024
  • ...ame) did not unadvisedly, in inserting Arithmetical Speculations among the Elements of Geometry, nay rather he did great Service to the Mathematics, and merite ...it refers to the possibility of dividing a line into its infinitely small elements by following the same order which one employs in dividing the same line int ...
    48 KB (7,924 words) - 01:49, 29 March 2024
  • ...son, berries and roots. ...His idea is ...rediscovering traditional Nordic elements. ...[T]he context ...this ...self-built hippie commune in the old Navy yard ...efs with their {{w|crème brûlée}} torches treating the outside against the elements... [T]he torched wood makes it capable of being outdoors.<!--14:30--> ...
    59 KB (9,733 words) - 03:53, 23 November 2024
  • ...ric constant and the magnetic permeability) had also to be the determining elements in its refractive power. Although the condition demanded by Maxwell—of the ....The original and almost tacit assumption that the whole ion—''i.e.'', the chemical atom plus its valency charge—was in oscillation must, therefore, be abandon ...
    36 KB (5,755 words) - 18:09, 18 July 2022
  • ...'s]] exaltation of the "[[Plato|Platonic]] and [[Pythagoras|Pythagorean]]" elements of the [[w:Scientific revolution|Scientific Revolution]]... was based on a ...f the demonstrated propositions admitted of the slightest doubt—[[Euclid’s Elements|Euclid's geometry]]. This marvellous accomplishment of reason gave to the h ...
    71 KB (11,460 words) - 19:09, 3 October 2024
  • ...agoras]] agrees with [[w:Leucippus|Leucippus]] and [[Democritus]] that the elements are infinite. ...mited in number never make them infinite in amount. But those who make the elements infinite in number, as [[Anaxagoras]] and [[Democritus]] do, say that the i ...
    102 KB (16,729 words) - 05:14, 24 October 2024
  • ...he play has been a theme of other poets, we know that the amalgam of these elements is Shakespeare's; we feel the presence of his single mind. The Elizabethan ...ent symbols and their laws of arrangement." ...If we break down [chemical] elements into... elementary particles (protons, neutrons, and electrons) and the for ...
    53 KB (8,977 words) - 03:28, 30 October 2024
  • ** [[Nick Holonyak]], Forward to Nannapaneni Narayana Rao, ''Elements of Engineering Electromagnetics'' (2006) p. xix. ...nd radio, the forces between the nuclei and electrons of single atoms, the chemical forces between atoms and molecules, the forces of cohesion and elasticity h ...
    50 KB (7,727 words) - 23:30, 3 November 2024
  • ...atural Philosophy" in ''Nature'', Vol. 7 (Mar. 27, 1873) A review of ''{{w|Elements of Natural Philosophy}}'' [https://archive.org/details/elementsnatural00kel ...extend far beyond gases... describing electric and magnetic interactions, chemical reactions, phase transitions... and all other manner of exchanges of matter ...
    49 KB (7,646 words) - 03:01, 11 February 2025
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