Communications
Revolution 		Communications
Networks 		Optical
Fibres 		Photonic
Devices 		Future of
Communications 		Credits

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Some Examples

Some Conductors

Metals like copper, iron, alumimum are conductors.
Water is a conductor (a poor one though!)

Some Insulators

Some plastics, glass are insulators.

Some Semiconductors

Silicon, germanium are semiconductors.
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