John Tyndall, the rhetorician of molecularity. Part two. Questions put to nature

  title={John Tyndall, the rhetorician of molecularity. Part two. Questions put to nature},
  author={Maria Yamalidou},
  journal={Notes and Records of the Royal Society of London},
  pages={319 - 331}
  • Maria Yamalidou
  • Published 22 September 1999
  • Sociology
  • Notes and Records of the Royal Society of London
Following the discussion in Part One of this paper, an attempt is made here to understand the way in which Tyndall justified his bold claim that the introduction of molecular explanans in science necessitated an act of the imagination. Being conscious of the prospective emergence of a new scientific field out of the extensive dialogue of scientists over the conditions of material molecularity, and having the ambition to place his own research on absorption and radiation at the centre of the… 
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I. Researches on radiant heat.—Fifth memoir. Contributions to molecular Physics
  • J. Tyndall
  • Physics
    Proceedings of the Royal Society of London
  • 1864
Considered broadly, two substances, or two forms of substance, occupy universe—the ordinary and tangible matter of that universe, a intangible and mysterious ether in which that matter is immersed.
III. On the absorption and radiation of heat by gaseous matter.—Second memoir
  • J. Tyndall
  • Physics
    Proceedings of the Royal Society of London
  • 1862
Resuming with a new apparatus his experiments on the influence of chemical combination on the absorption and radiation of heat by gases, the author in the present investigation first examines the
V. Sixth memoir on radiation and absorption.— Influence of colour and mechanical condition on radiant heat
  • J. Tyndall
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    Philosophical Transactions of the Royal Society of London
  • 1866
F r a nk lin placed cloths of various colours upon snow and allowed the sun to shine upon them. They absorbed the solar rays in different degrees, became differently heated, and sank therefore to
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  • J. Tyndall
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  • 1860
Before the Royal Society terminates its present session, I am anxious to state the nature and some of the results of an investigation in which I am now engaged. With the exception of the celebrated
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