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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. What is light in physics 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. The meaning of light is something that makes vision possible How to use light in a sentence But what exactly is light Is light a wave or a particle And why can’t humans see the whole spectrum of light The study of light and its interaction with matter is termed optics The observation and study of optical phenomena such as rainbows and the aurora borealis offer many clues about the nature of light as well as much enjoyment. Light is the first language of the cosmos Before humanity ever carved words into stone or etched equations onto chalkboards,… 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. Explore the essential nature of light and radiant energy, understanding its core principles, interactions, and widespread influence. Light is a form of electromagnetic radiation, which means it has electric fields and magnetic fields vibrating back and forth very quickly as a wave Because of the strangeness of quantum mechanics, light is also made of little particles with no mass, called photons.