Photon

A photon is an energy particle that has no mass and moves at high speed. When a moving photon interacts with matter, it does so as a wave, like a wave moving across the surface of water. These waves are known as “electromagnetic waves” because they display both electrical and magnetic components.

ASTROLab of Mont-Mégantic National Park

© ASTROLab/Mont-Mégantic National Park


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