手电筒照向天空，当关闭电源后，光线是会消失还是会继续传播4

The question about whether light disappears or continues after turning off a flashlight involves physics principles. Light behaves as particles (photons) and can be influenced by gravity, following paths like reflection, refraction, and diffraction. Its essence was initially proposed as a small force by Roman scientist Lucretius and definitively understood as a photon stream in the early 20th century.