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Physics Girl

How to control light with water

May 23, 2017

How fast is the internet? How fast can we send data? This easy DIY experiment allows you to control light with water! Drill a hole in the bottom of a 2 liter bottle, fill the bottle with water allowing the water to stream out the hole, and a shine a laser on the other side so it comes out the hole and follows the stream of water! Just like fiber optics, the laser beam gets bounced around, but stays within the stream. Controlling light in this way gives up the ability to send information MUCH faster, as opposed to sending a postcard via snail mail!

Infinite Series:
https://www.youtube.com/channel/UCs4aHmggTfFrpkPcWSaBN9g

Check out Physics Girl's exploding soda can video:
https://www.youtube.com/watch?v=AXOa66-k9MA

Subscribe to Physics Girl for more fun physics!
https://www.youtube.com/subscription_center?add_user=physicswoman

Creator/Writer: Dianna Cowern
Animator: Kyle Norby
Writer/Researcher: Sophia Chen
Editor: Jabril Ashe

Fun new Fiber Optics video from Nat and Lo on Fiber Optics called, "Journey to the Bottom of the Internet"
https://www.youtube.com/watch?v=H9R4tznCNB0
Also found this great video by engineer guy who set up the experiment much better than we did:
https://www.youtube.com/watch?v=0MwMkBET_5I

http://physicsgirl.org/
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Map of underwater cables and landing sites:
TeleGeography
http://www.submarinecablemap.com

Stock Images: pixabay.com and clker.com

Music: APM and YouTube.


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