What is Light, What Does It Mean?July 1, 2021
A form of motion of matter. In physics, light is defined as the physical energy that enables us to see objects. In the last half of the century, Maxwell proved that light phenomena are actually nothing but electromagnetic phenomena, thus establishing the unity of optics and electricity. Light, like electricity and heat, is a substance; It has mass and is weighed. In the absence of light, vision is not possible. It was proved by Einstein that light has a mass and is under the influence of the gravitational field, which opened a new era in human knowledge.
Einstein’s general theory of relativity is based on this proof. The speed of light is the speed limit in the universe; It cannot be faster than the speed of light. The energy contained in any piece of matter is equal to the mass of that matter multiplied by the speed of light squared. This unique equation that Einstein found has solved almost all the secrets of nature.