Robert Gilmore
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Science and the Photon
It was Albert Einstein who first theorized that the energy in a light beam exists in small bits or particles, and scientists today know that light sometimes behaves like a wave (somewhat like sound or water) and sometimes like a stream of particles. The energies of photons range from high-energy gamma rays and X-rays down to low-energy infrared and radio waves, though all travel at the same speed. The amazing power of lasers is the result of a concentration of photons that have been made to travel together in order to hit their target at the same time.
Examples of photon in a Sentence
Shayla Love, The Atlantic, 11 Oct. 2024
Additionally, these molecules cool the PV cell by acting as an optical filter that blocks the photons that would normally cause the cell to heat up and reduce efficiency.
—New Atlas, 26 Sep. 2024
This motion takes too much energy to be induced by Earth’s infrared photons on their own.
—Joseph Howlett, WIRED, 25 Aug. 2024
Above that energy, photons will be sparse (they may still be produced by things like processes that accelerate particles).
—John Timmer, Ars Technica, 31 July 2024
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Cite this Entry
“Photon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photon. Accessed 29 Nov. 2024.
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photon
noun
Medical Definition
photon
noun
called also troland
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