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Total Internal Reflection

When light is passing from one material to another it can be reflected back, trapping the light in the first material.

Atoms Practice
Practice Total Internal Reflection
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Cable 2.0

High Speed High Speed Internet

Credit: DeclanTM
Source: http://flic.kr/p/4q13tN
License: CC BY-NC 3.0


Are you sick and tired of waiting for your websites to load?  Don't fret, because the future of high speed internet is here.  In 2011, Google launched an ambitious program called Google Fiber, which used fiber optic technology to provide 1 gigabit per second data connection to citizens of Kansas City, Kansas.  Fiber optics uses a special type of material to allowing for much faster data transer.  Since then, the program has spread to 3 cities, and other cities are soon to get it as well.  Very soon, the time will come when we won’t have to wait for pages to load.

Creative Applications

  1. What are the advantages of using fiber optic cables over regular copper cables?
  2. Research the materials in a fiber optic cable.  Which material allows for total internal reflection or the ability of light to travel through the cable?
  3. How is the light able to be converted into the data requested?





Image Attributions

  1. [1]^ Credit: DeclanTM; Source: http://flic.kr/p/4q13tN; License: CC BY-NC 3.0


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