Il paradosso della velocità (costante) della luce (60)

One of the most puzzling aspects of Einstein's relativity is the invariance of the speed of light. How is it possible that the speed of light always has the same value, regardless of the frame of reference used to measure it? If this doesn't surprise you, then you haven't been paying close enough attention. In this video, I'll try to solve the mystery by revisiting the notion of velocity. For the derivation of the Lorentz transformations, without the aid of the second postulate, I refer you to my video:    • Relatività senza fotoni - Come derivare le...   In the video, I mentioned Alfred A. Robb, who introduced the notion of speed in 1911. The exact reference is: Robb, A. A. (1911). Optical Geometry of Motion: A New View of the Theory of Relativity. Cambridge: W. Heffer and Sons Ltd. London: Simpkin Marshall and Co. Ltd. For further information: https://arxiv.org/abs/2307.04764