"Light is made of photons that, because they move extremely fast (i.e., at the speed of light), are difficult to tame."
What is this people magazine ?

"Light is made of photons that, because they move extremely fast (i.e., at the speed of light), are difficult to tame."
What is this people magazine ?

When you catch a photon within a resonant cavity with perfectly reflecting walls, it becomes a stationary wave that fills the whole cavity. It is then VERY "tame" since its EM energy is now rest-mass energy. It remains at rest unless it finds a semi-transparent or fully-transparent window out of the cavity through which it cam emit and move away from with speed c.