These cables are about the same diameter as the average garden hose, but on the inside they contain thin optical fibers. Those fibers are surrounded by several layers of protection, including two layers of ultra-high strength steel wires, water-blocking structures and a copper sheath. Why so much protection? Imagine... See more
FLAG, a fiber-optic cable now being built from England to Japan, is a skinny little cuss (about an inch in diameter), but it is 28,000 kilometers long, which is long even compared to really big things like the planet Earth. When it is finished in September 1997, it arguably will be the longest engineering project in history. Writing about it... See more