For those who’ve ever made a “phone” with a pair of tin cans and a string, you’ve got an concept of how the Web works.
Even in 2022, fashionable international telecommunications nonetheless capabilities in a considerably comparable method.
The photograph above exhibits an precise fiber optic cable. This is similar kind of cable used within the submarine cable techniques that energy the worldwide Web.
Lasers on one finish fireplace at extraordinarily speedy charges down skinny glass fibers to receptors on the different finish of the cable. These fibers—roughly the diameter of a human hair—are sheathed in a couple of layers of insulation and safety.
It’s these skinny optical fibers, not satellites, that carry the overwhelming majority of intercontinental telecommunications site visitors.
CNBC not too long ago launched a really informative video all about fiber optic cables. It is an excellent watch (particularly since TeleGeography’s personal Jon Hjembo is featured).
Watch Jon focus on fiber optic cable deployment and the way fiber compares to satellite tv for pc at 7:46 and 15:20.