PHIL202 Timeline 1: John Tyndall (1820-1893) by Mike Nagle

  • Birth of John Tyndall

    He is born in Leighlinbridge, Co Carlow, Ireland.
  • Begins Career at the Royal Institution

    In May of 1854, John Tyndall becomes a Professor of Natural Philosophy at the Royal Institution (Gentry 1365). His work furthered Michael Faraday's, a senior figure in the Royal Institution. Faraday had originally demonstrated the colloidal particle phenomenon. So, the Tyndall Effect was originally known as the Faraday-Tyndall Effect (Gentry, 1366). However, Tyndall founded more significant aspects that led to its recognition as the Tyndall Effect.
  • Period: to

    Series of Experiments Related to Radiant Heat Conducted by Tyndall

    John Tyndall conducted a series of experiments between 1859 and 1867. These experiments examined circumstances surrounding radiative heat transfer. These studies provided the foundation of his theory, the Tyndall Effect. The most significant areas of his study's findings affirmed the relationship between light and radiant heat and they also showed that gases absorb heat (Gentry 1366).
  • Discovers Tyndall Effect

    Discovers Tyndall Effect
    John Tyndall discovers the Tyndall Effect (Gentry). Tyndall Effect discovery was a result of his prior work concerning radiative heat (Gentry 1375). The Tyndall Effect demonstrated the scattering effect that is produced from light shining through colloidal particles (Gentry 1367).
  • Demonstration Video of the Tyndall Effect

    https://youtu.be/bq1ZZAymKHw (Chemistry Channel).
  • Death of John Tyndall

  • Works Cited

    Chemistry Channel. "Tyndall effect." Online video clip. Youtube. Youtube, 30 September 2018. Web. 24 November 2018. https://youtu.be/bq1ZZAymKHw Gentry, James W. "The Legacy of John Tyndall in Aerosol Science." Journal of Aerosol Science, vol. 28, no. 8, 1997, pp. 1365-1372. Helmenstein, Ann M. Tyndall Effect definitions and examples: understand the Tyndall Effect in chemistry. Though Co., 11 May 2018, https://www.thoughtco.com/definition-of-tyndall-effect-605756
  • FIGURES

    Figure 1. Paul Wilkinson. John Tyndall's blue sky apparatus. Photograph, The Royal Institution, Web, n.d., Digital Image, http://www.rigb.org/our-history/iconic-objects/iconic-objects-list/tyndall-blue-skyThank you,