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The basic unit (quantum) of electromagnetic radiation (and therefore light), photons were first postulated by Planck, whose measurements of the blackbody spectrum showed that electromagnetic radiation... More »


A photon is an elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the ...


February 2017 - Photons are tiny little particles of light, far too small to see individually. All light is made of photons (FOE-tahns). The earliest photons probably ...


Consider the question what is a photon?. The answers say "an elementary particle" and not much else. They don't actually answer the question.

May 2, 2015 ... Catalogue at https://xmphysics.wordpress.com/ Follow me on facebook: https:// www.facebook.com/xmphysics.


Aug 2, 2016 ... Here is the definition of the photon theory of light and what it means, as well as how it developed and its bizarre implications.


What is a photon? This definition explains what a photon is and the history of its discovery, as well as how photons are understood in physics and the ...


It would take no less than Einstein to resolve the issue. Thanks to him and the work of other renowned physicists we know more about what are photons.


Aug 5, 2010 ... The short form of the experimental answer is “A photon is the smallest amount of light that will cause a detector to 'click.'” (For some reason ...


May 18, 2015 ... In this lesson, we will learn the definition of a photon. We will also explain Planck's constant and its relationship to the photon energy and...