Explore Optic Fiber | DIY Science | ThinkTac
Optical fibres use a phenomenon known as total internal reflection to allow light to travel along a curved path. The light itself never actually bends, instead, it's reflected off the internal walls of the fibre. As long as the angle of reflection of the light is greater than what is called the critical angle it will travel quite far without much loss. Thus it's used as a way to send light (with coded information) over huge distances for communication and data services. Here, you explore the properties of optic fibres by building a simple circuit, and connecting it to LEDs, which are shone through optic fibres and straws. Is there a difference?
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