Here in New Zealand we get our Internet courtesy of a very long underwater cable. The approximately 30,000 Km long Southern Cross cable stretches across the seabed between the US and New Zealand.
But how exactly does that cable carry signals?
Luckily Engineer Guy, Bill Hammack, has taken the time to explain it for us in plain language and with an easy to follow video. Take a look.
Bill uses a laser pointer and a bucket of glycol to show how fiber optic cables works, and how engineers use them to transmit signals across the ocean.