Entity: PHOTON
A photon is a fundamental particle of light, considered as a quantum of electromagnetic radiation. It is its own antiparticle, has zero rest mass and charge, and a spin of one.
PHOTON
Etymology
The term 'photon' originates from the Greek word 'phōs' meaning light.
Definition
A photon is a fundamental particle of light that is considered a quantum of electromagnetic radiation. It is its own antiparticle, has zero rest mass and charge, and a spin of one.
Historical Context
The concept of photons was introduced by Albert Einstein in 1905 to explain the photoelectric effect. It revolutionized the understanding of light and laid the foundation for quantum mechanics.
Cultural Significance
Photons play a crucial role in various fields such as quantum physics, telecommunications, and astronomy. They are essential for technologies like lasers and solar cells.
Related Concepts
Other related concepts include wave-particle duality, electromagnetic radiation, and quantum field theory.
See Also
A fundamental particle of light that is considered a quantum of electromagnetic radiation.