What is light made up of particles or waves?

Quantum Mechanics is a particle theory par excellence. However, it is interesting to note that Einstein was one of the first to reject the irrational physical interpretations of Quantum Mechanics, stating: “God does not play dice! read more

Photons are not particles, but units of energy of light waves. Depending on the energy of light waves, it may carry many photons. No particle can travel at speed of light. No matter which way we think, light is always made of waves of energy, not of particles. These waves of light can move other objects by using its energy. read more

This fundamental question has dogged scientists for decades, because light seems to be both. However, until now, experiments have revealed light to act either like a particle, or a wave, but never the two at once. read more

Light is what's called an "electromagnetic wave", just like radio waves, microwaves, X-ray waves, etc. Electromagnetic waves typically start when an electric charge jiggles back and forth. Depending on the "frequency" of the electromagnetic wave (or how scrunched together the peaks in the wave are), you get different kinds of waves. read more