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The speed of light in vacuum, commonly denoted c, is a universal physical constant that is exactly equal to 299,792,458 metres per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour).
De acuerdo con la física moderna toda radiación electromagnética (incluida la luz visible) se propaga o mueve con una rapidez constante en el vacío, conocida —aunque impropiamente [ cita requerida] — como "velocidad de la luz" (magnitud vectorial ), en vez de "rapidez de la luz" (magnitud escalar ).
18 de jun. de 2024 · Learn about the speed of light, a fundamental constant of nature that limits the speed of signals and material particles. Find out its value in a vacuum, its role in relativity, and its relation to electric charge.
17 de may. de 2023 · The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light.
23 de ene. de 2024 · Learn how the speed of light was first measured, why it is a constant and what it means for relativity. Explore the experiments, theories and discoveries that reveal the cosmic speed limit of the universe.
11 de jun. de 2024 · Learn about light, the electromagnetic radiation that can be detected by the human eye, and its physical characteristics, types, and applications. Find out the speed of light in a vacuum, a fundamental constant of nature, and how it relates to quantum mechanics and special relativity.
11 de abr. de 2021 · Learn what the speed of light is, how it is measured, and why it is a constant. Find out how the speed of light affects space, time, and matter, and what are the challenges and possibilities of going faster than light.
