Frequency is measured in cycles per second, or Hertz. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of all, gamma-rays.Įlectromagnetic radiation can be expressed in terms of energy, wavelength, or frequency. The different types of radiation are defined by the the amount of energy found in the photons. Each photon contains a certain amount of energy. Radio waves, gamma-rays, visible light, and all the other parts of the electromagnetic spectrum are electromagnetic radiation.Įlectromagnetic radiation can be described in terms of a stream of mass-less particles, called photons, each traveling in a wave-like pattern at the speed of light. The biggest gamma-ray generator of all is the Universe.Īre radio waves completely different physical objects than gamma-rays? They are produced in different processes and are detected in different ways, but they are not fundamentally different. Gamma ray: Doctors use gamma-ray imaging to see inside your body. Hot gases in the Universe also emit X-rays. X-ray: A dentist uses X-rays to image your teeth, and airport security uses them to see through your bag. "Hot" objects in space emit UV radiation as well. Ultraviolet: Ultraviolet radiation is emitted by the Sun and are the reason skin tans and burns. Fireflies, light bulbs, and stars all emit visible light. In space, infrared light helps us map the dust between stars. Infrared: Night vision goggles pick up the infrared light emitted by our skin and objects with heat. Microwave: Microwave radiation will cook your popcorn in just a few minutes, but is also used by astronomers to learn about the structure of nearby galaxies. Radio waves are also emitted by stars and gases in space. Send us feedback about these examples.Radio: Your radio captures radio waves emitted by radio stations, bringing your favorite tunes. These examples are programmatically compiled from various online sources to illustrate current usage of the word 'radiant energy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Richard Stone, Science | AAAS, See More Sabrina Park, Harper's BAZAAR, Surface temperatures tend to run hotter than the air above, especially on sunny days when surfaces are heated both by air and the Sun’s radiant energy. John Tuohy, The Indianapolis Star, 3 July 2021 Her radiant energy is not lost on her Instagram followers-she's made an icon of herself with her viral, sensual vacation posts. Monica Cull, Discover Magazine, 14 June 2022 The five colorful ovals, positioned possibly as petals, are intended to evoke the sun or a flower or radiant energy. 2022 Bioluminescence occurs during a chemical reaction called chemiluminescence – where chemical energy converts to radiant energy. 2023 The radiant energy of the music, the vibe, had been an invocation to levitate-but not for everybody. al, That's a new word that people are using to differentiate an electric stove top from a cooktop that uses induction cooking, which is also an electrical method, but uses non- radiant energy to heat whatever's on it. 2021 The people in the front row probably could have toasted marshmallows in the radiant energy from his pyrotechnics. Recent Examples on the Web People were attracted to her radiant energy.
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