A Typical Fiber cable

This is a photo of the end of a fiber optic cable with 3,456 individual glass fibers packed inside. Each fiber is capable of transmitting light at 127,000 miles per second or 457 million miles per hour. One fiber can carry a light signal powerful enough to stream 1.5 million YouTube videos at once. Like a transistor radio in your car; there are many channels for the light to travel on within that single fiber. Using simple math, 10 channels on a single fiber, each streaming 1.5 million videos, multiplied by 3,456 fibers… This cable can carry 5.184e10 (more than 50 billion) videos at once.