This article will help you understand how the Internet works around the world and where its main nodes are.
What you see above is a submarine communications cable.
It is 69 millimeters in diameter, and it is he who carries 99% of all international communication traffic (i.e. Internet, telephony and other data). It connects all the continents of our planet, with the exception of Antarctica. These amazing fiber-optic cables cross all oceans, and they are hundreds of thousands, what can I say, millions of kilometers long.
Submarine Cable Network World Map
This "CS Cable Innovator" is specially designed for fiber optic cable installation and is the largest ship of its kind in the world. It was built in 1995 in Finland, it is 145 meters long and 24 meters wide. It is capable of carrying up to 8, 500 tons of fiber optic cable. The ship has 80 cabins, of which 42 are officers' cabins, 36 are crew cabins and two luxury cabins.
Without maintenance and refueling, he can work 42 days, and if he is accompanied by a support ship, then all 60.
Originally, submarine cables were simple point-to-point connections. Nowadays, undersea cables have become more complex and they can divide and fork right at the bottom of the ocean.
Since 2012, the provider has successfully demonstrated an underwater data transmission channel with a capacity of 100 Gbps. It stretches across the entire Atlantic Ocean and is 6, 000 kilometers long. Imagine that three years ago the bandwidth of the Meatlantic communication channel was 2.5 times less and was equal to 40 Gbps. Now ships like the "CS Cable Innovator" are constantly working to provide us with fast intercontinental internet.
Cross-section of submarine communication cable:
2. Mylar coating
3. Stranded steel wires
4. Aluminum protection against water
6. Copper or aluminum tube
8. Optical fibers