Light has subatomic particles {photon, light}|. Photon is like wave packet. Continuous light {light ray} {ray, light} is many wave packets.
straight
Light rays and photons travel in straight lines.
energy
Photon energy E is frequency v times Planck constant h: E = h*v.
observers
What do people see as photon goes past? In empty space, people see particle contracted to zero length, with no mass but with frequency and wavelength. People see time standing still on photon.
What does photon see? In empty space, photon travels at light speed. Other objects pass by at light speed, with infinite mass and zero wavelength. Photon sees time as standing still on other things. Photon sees only point straight-ahead, and sees nothingness on sides, so photon sees along one-dimensional line.
Physical Sciences>Physics>Wave>Electromagnetic>Photon
5-Physics-Wave-Electromagnetic-Photon
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Date Modified: 2022.0224