Internet - as a worldwide network was established
Interesting facts about how the connection continents of our planet, as the cable is laid on the ocean floor, and, most importantly, as a worldwide network was established - the Internet.
What you see above is an underwater communications cable.
He diameter 69 mm, and that it carries 99% of all international traffic connection (ie. E. The Internet, telephony and other data). It connects all the continents of the world except Antarctica. These amazing fiber optic cables traverse the oceans, and they are long, hundreds of thousands, but what to say, millions of kilometers.
World Map submarine cable network
It is "CS Cable Innovator", it is specifically designed for the laying of fiber optic cable 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. It is capable of carrying up to 8,500 tons of fiber optic cable. The ship has 80 cabins, of which 42 - cabins officers, 36 - two crew cabins and luxury cabins. Without maintenance and refueling it can work 42 days, and if it will be accompanied by support ship, all 60.
Originally, submarine cables were simple compounds such as point-to-point. Now the submarine cables have become more complicated and they can share and branch off right on the ocean floor.
Since 2012, the provider underwater data transmission channel has been successfully demonstrated with a capacity of 100 Gbit / s. It stretches across the Atlantic Ocean and its length is 6000 kilometers. Imagine that three years ago meatlanticheskogo communication channel bandwidth was at 2, 5 times less than and equal to 40 Gbit / s. Now ships like "CS Cable Innovator" constantly working in order to provide us with all the rapid intercontinental internet.
The 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
This is how it looks on the bottom. What are the environmental consequences of laying telecommunication cables on the seabed? How does this affect the bottom of the ocean and the animals that live there? While literally millions of kilometers of communication cables were placed on the bottom of the sea during the last century, it had no impact on the life of underwater creatures. According to recent research, the cable has only a minor effect on the animals living on and within the seabed. In the photo above, we see a variety of marine life near the submarine cable that crosses the continental shelf of the Half Moon Bay. Here the cable 3 only 2 cm. Thickness.
Many feared that the cable TV channels will load, but in fact it has increased the load by only 1 percent. And cable TV, which can go on an underwater fiber now has a capacity of 1 Terabit, while satellites provide 100 times less. And if you want to buy a transatlantic cable, it will cost 200-500 million dollars.