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Photons
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 »

en.wikipedia.org/wiki/Photon

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

quatr.us/physics/light/photon.htm

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 ...

physics.stackexchange.com/questions/273032/what-exactly-is-a-photon

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

.ask.com/youtube?q=What+Is+a+Photon&v=4UNtA8ZaoAc
May 2, 2015 ... Catalogue at https://xmphysics.wordpress.com/ Follow me on facebook: https:// www.facebook.com/xmphysics.

www.thoughtco.com/what-is-a-photon-definition-and-properties-2699039

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.

whatis.techtarget.com/definition/photon

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 ...

www.universetoday.com/74027/what-are-photons

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.

scienceblogs.com/principles/2010/08/05/whats-a-photon-and-how-do-we-k

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 ...

study.com/academy/lesson/what-is-a-photon-definition-energy-wavelength.html

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...