Comment on Could we send electric data across time?

Sanctus@lemmy.world ⁨9⁩ ⁨months⁩ ago

• marcos@lemmy.world ⁨9⁩ ⁨months⁩ ago

  Optic fibers normally have light moving inside them at something between 1/3 and 1/2 of the speed of light.

  And electric signals in network cables usually move at something between 1/5 and 1/3 of it.

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  • Sanctus@lemmy.world ⁨9⁩ ⁨months⁩ ago

    So neither i guess.

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• robolemmy@lemmy.world ⁨9⁩ ⁨months⁩ ago

  As I understand it, massless particles always have to move at the speed of light in the medium through which they’re moving. The catch is that it varies depending on the medium. The speed of light is only equal to c in a vacuum. Even in optical fibers, light speed is < c.

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  • sosodev@lemmy.world ⁨9⁩ ⁨months⁩ ago

    If I remember correctly only massless particles that travel through space are photons. Photons are what make up light so to say they travel at that speed is a little redundant.

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