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John Tyndall History
(https://youtu.be/53tFu9unKhQ) John Tyndall became a teacher of mathematics and went to Germany to learn science. Within three decades, Tyndall wrote nearly 150 papers that contributed to science in various ways and areas. He continued his education and studied the earth's atmosphere, ozone, oxygen, and various other fields. Some of his achievements are still used today in modern science. This video is an overview of his scientific achievements beginning in the 1850's. -
Tyndall describes the Earth's Atmosphere and Climate Change
Tyndall'sdiscovered gas molecules of water vapor, carbon dioxide, and ozone absorb heat radiation at a higher rate than the atmosphere. Tyndall suggested that water vapor was the strongest absorber of radiant heat and stated it was controlled theEarth's surface temperature more than any other gas (Graham, 1999). He continued his work and hypothesized that water vapor and carbon dioxide could be a contributing factor for climate change. -
Tyndall and the Greenhouse Effect
Tyndall continued his research in atmospheric physics where he examined the transmission of radiant heat and light within several gases and vapors. "He discovered that water vapor and carbon dioxide absorb much more radiant heat than the gases of the atmosphere and argued the consequent importance of those gases in moderating Earth’s climate—that is, in the natural greenhouse effect" (Encyclopedia Britannica, 2019). -
The Tyndall Effect and the Blue Sky
The Tyndall Effect consisted of the "scattering of a beam of light by a medium containing small suspended particles—e.g., smoke or dust in a room", creates visible light beams. In other words, the particles will become visible due to intense light. He suggested that this is the reason that the sky appears to be blue. Tyndall believed that blue light scatters more because it travels in small and short waves (Encyclopedia Britannica, 2019). -
Tyndall measures oxygen in human breath and defines Ozone
Tyndall created a system to measure the percentage of carbon dioxide in human breath. This is used in modern medical science to monitor patients who are under the effects of anaesthesia. Additionally, he suggested the Ozone is made up of oxygen in clusters the same year (Thefamouspeople,com, N.). -
Tyndall and Pure Air
John Tyndall supported Louis Pasteur's belief that spontaneous generations are False. Tyndall created a tool demonstrating air had the ability to carry particulate matter. Tyndall’s apparatus could show when the air was pure. His machine showed that air couldn't produce organisms when introduced into media capable of supporting the growth of microorganisms (Encyclopedia Britannica, 2019).
