laser beams

Google says it has successfully used beams of light in the air to carry an Internet signal. It says the technology won't work everywhere but could be a useful solution in specific places. Project Taara works on a broadly similar principle to fiber ... optic cables, with pulses of light carrying a signal that translates into the 0s and 1s of computer code. The "Free Speech Optical Communications" system uses a narrow beam of light invisible to the human. It's a similar technology to that which Google used in a previous project to connect balloons in the sky. The new system instead connects ... (view more)