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wikipedia.org
https://en.m.wikipedia.org/wiki/Light
Light - Wikipedia
The main source of natural light on Earth is the Sun. Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps. With the development of electric lights and power systems, electric lighting has effectively replaced firelight.
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britannica.com
https://www.britannica.com/science/light
Light | Definition, Properties, Physics, Characteristics ...
Light is electromagnetic radiation that can be detected by the human eye. Electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma rays with wavelengths less than about 1 × 10 −11 metres to radio waves measured in metres.
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learn-physics.org
https://learn-physics.org/light/
Light - Learn Physics
Light is a type of energy that enables us to see with our eyes. Light travels from a source, like the sun or a light bulb, to our eyes, and to the surroundings. That is the reason we can see objects during daytime with the sunlight, or with a light bulb in the night.
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jhu.edu
https://blair.pha.jhu.edu/spectroscopy/basics.html
The Basics of Light - Johns Hopkins University
Simply stated, light is nature's way of transferring energy through space. We can complicate it by talking about interacting electric and magnetic fields, quantum mechanics, and all of that, but just remember-- light is energy. Light travels very rapidly, but it does have a finite velocity.
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thefreedictionary.com
https://www.thefreedictionary.com/light
Light - definition of light by The Free Dictionary
Define light. light synonyms, light pronunciation, light translation, English dictionary definition of light. n. 1. Physics a. Electromagnetic radiation that is visible, perceivable by the normal human eye as colors between red and violet, having frequencies between...
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skyatnightmagazine.com
https://www.skyatnightmagazine.com/space-science/w…
What is light? | BBC Sky at Night Magazine
What is light, what are the different types of light and how does light behave? A history of discoveries has led us to see more clearly.
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lco.global
https://lco.global/spacebook/light/what-is-light/
What is Light? - Las Cumbres Observatory
In most situations, light behaves like a wave with properties like wavelength and frequency, and is subject to diffraction and interference. In some situations, light can be considered to behave like a particle called a photon. This particle has no mass, but carries a fixed amount of energy.
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wikipedia.org
https://simple.m.wikipedia.org/wiki/Light
Light - Simple English Wikipedia, the free encyclopedia
When light hits a transparent object, it passes through it almost completely without making a significant shadow. Light is a form of electromagnetic radiation that shows properties of both waves and particles.
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britannica.com
https://www.britannica.com/science/light/Light-as-…
Light - Electromagnetic, Wavelength, Spectrum | Britannica
In his formulation of electromagnetism, Maxwell described light as a propagating wave of electric and magnetic fields. More generally, he predicted the existence of electromagnetic radiation: coupled electric and magnetic fields traveling as waves at a speed equal to the known speed of light.
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britannica.com
https://www.britannica.com/summary/light
Light and its properties | Britannica
In the mid-19th century, light was described by James Clerk Maxwell in terms of electromagnetic waves, but 20th-century physicists showed that it exhibits properties of particles as well; its carrier particle is the photon. Light is the basis for the sense of sight and for the perception of colour. See also optics; wave-particle duality.