Optical fiber is a hair-thin strand of glass, specially designed to trap and transmit light pulses. Fiber broadband technology uses light instead of electricity to carry a signal. It can carry high bandwidth signals over long distances without signal degradation, and it can provide those signals simultaneously in both directions – upload and download. Fiber-optic broadband infrastructure can support virtually unlimited amounts of bandwidth use and has very little signal degradation over long distances. For example, copper wire loses about 94% of its bandwidth capacity over 100 meters, where the fiber-optic line only loses about 3% over the same distance. Broadband can also be delivered through non-fiber technologies such as copper wire or over wireless signals. Wireless can be a good solution when wireline infrastructure is cost-prohibitive due to difficult geography or low building density. However, wireless infrastructure can be impacted by weather, trees, and other environmental factors.