A chemical 's a very interesting note, I've found about the transmission of data,
A joint team of Italian and Japanese scientists from the universities of Pisa and Tokyo claim to have established a new world record wireless data transmission, reaching over 12 hours sustained speeds of 1.2 Terabits per second. The previous record was held by Korean researchers to 160 Gigabits per second.
To achieve this impressive bandwidth, unlike communications by radio waves used in Wi-Fi networks, the researchers used optical technology Free Space Optics uses the spread of light in the open space to transmit data between two points by laser.
This technology is very useful when it is not possible to install fiber optic cable because of cost or physical disability and is currently used for communication between spacecraft.
The range in space is thousands of miles, reduced from 10 km terrestrial links, depending on the stability and quality of the signal in heavily atmospheric factors such as rain, fog, dust or heat.
Its main advantages cited high rates of transfer and not using the radio spectrum. Its major drawback is that it requires a completely unobstructed transmission (direct vision)-an impossibility in our homes, so scientists are working on a combination of radio and optical technologies for telecommunications future.
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