• sloppy_diffuser@sh.itjust.works
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    1 year ago

    Its a type of fiber optic cable where the center of the cable is literally hollow. Normal fiber uses a glass core. Light passing through glass also travels about 2/3 the speed of the light since the speed of light is only constant in an empty vacuum. With hollow core, light is no longer passing through glass so its speed is much closer to the actual speed of light.