Apedia

Light Photons Tiny Stream Particles Travel Bundle Radiant

word photon
definition A tiny particle or bundle of radiant energy.
eg_sentence The idea that light consists of photons is difficult until you begin to think of a ray of light as being caused by a stream of tiny particles.
explanation 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
IPA ˈfoʊˌtɑn

Tags: mwvb::unit:8, mwvb::unit:8:word, mwvb::word, mwvb::word-cloze, mwvb::word-reverse, obsidian_to_anki

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