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There and Back Again: A Packet’s Tale

From the World Science Festival web page:

 

"The video lets you ride shotgun with a packet of data—one of trillions involved in the trillions of Internet interactions that happen every second. Look deep beneath the surface of the most basic Internet transaction, and follow the packet as it flows from your fingertips, through circuits, wires, and cables, to a host server, and then back again, all in less than a second."(link)

This video explains the Internet in very easy to grasp illustrations, with great analogies and metaphors.