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John Tyndall (Birth)
Born August 2nd, 1820 in Leighlinbridge, Ireland -
Diamagnetism
Diamagnetism is an effect in which diamagnetic materials have all of their electrons paired and that creates a "repel" external field. Diamagnetism is the opposite of paramagnetism in that paramagnetic materials have at least one unpaired electron which creates and attracting external force. -
Greenhouse Gas Tests
John Tyndall was not the first scientists to come up with the idea of greenhouse gases. He was, nonetheless, one of and if not the first scientists to successfully run tests that proved that there were several gases in our atmosphere that trapped heat rays. The tests found carbon dioxide to be very effective in doing this. Due to the sheer size of the atmosphere, even minute traces of carbon dioxide can/will alter the balance of heat radiation. -
Tyndallization
Tyndallization is the process for sterilizing substance by killing heat-resistant endospores. This process was/is manly used on food. The item is heated up to 121 degrees Celsius for 15 minutes in a pressured system. The item is heated for 15 minutes in order to kill the bacterial cells. The item is then set in a moist environment in order to allow the unharmed spores to germinate into bacterial cells and the process is repeated. -
Tyndall Effect
The Tyndall Effect is the effect of light scattering in colloid dispersion, while showing no light in a true solution. If you sine a light through a solution and the light passes through it cleanly then the solution is a true solution. However, if the light were to scatter in all directions then the solution is a colloid solution. The light collides with micro-particles and scatters, making the solution or material brighter. This can be seen as well in foggy weather with a flashlight. -
Tyndall Effect (Video)
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John Tyndall (Death)
Death December 4th, 1893 in Haslemere, United Kingdom -
MLA Citations
Bella Mody. "Tyndall Effect" Chemistry Libre Texts. 30 Sept. 2019, www.chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Cehimstry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemisty)/Physical_Properties_of_Matter/Solutions_and_Mixtures/Colloid/Tyndall_Effect Paul Wilkinson. "John Tyndall's blue sky apparatus". The Royal Institution. www.rigb.org/our-history/iconic-objects/iconic-objects-list/tyndall-blue-sky -
MLA Citations (cont.)
Steve Graham. "John Tyndall (1820-1893)" Earth Observatory. 08 Oct. 1999, www.earthobservatory.nasa.gov/features/Tyndall Roland Jackson, "John Tyndall and the Early History of Diamagnetism" PMC. 21 July 2014, www.ncbi.nlm.nih.gov/pmc/articles/PMC4524391/ "Fractional Sterilization or Intermittent Processing" Healthy Canning. www.healthycanning.com/fractional-sterilizaiton-intermittent-processing/#Summary