👉 Travels of light particles, or photons, are fundamental to understanding the nature of light and its interactions with matter. Photons are massless, particle-like entities that carry energy and momentum, traveling at the speed of light in a vacuum, approximately 299,792 kilometers per second. Unlike matter particles, photons do not experience friction or resistance as they move through space, allowing them to traverse vast distances without losing energy. They can travel through various media, including air, water, and even the vacuum of space, though their behavior changes depending on the medium's properties. Photons are crucial in phenomena such as reflection, refraction, and the photoelectric effect, and they play a central role in electromagnetic radiation, from radio waves to gamma rays. Their particle-like behavior is evident in experiments like the photoelectric effect, where light interacts with matter as discrete packets of energy, challenging classical physics and leading to the development of quantum mechanics.
