I am teacher. So I wish to my students to stay home and safe himself with your families.
Thursday, July 25, 2019
How vulnerable are the undersea cables that power the global internet?
On July 29, 1858, two steam-powered battleships met in the middle of the Atlantic Ocean. There, they connected two ends of a 4,000 kilometer (2,500 mile) long, 1.5 centimeter (0.6 inch) wide cable, linking for the first time the European and North American continents by telegraph.
from CNN.com - RSS Channel - Regions - Asia https://ift.tt/2Y6d5ii
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