Fibre-optic communication is a method of transmitting information from one place to another by sending pulses of infrared light through an optical fibre. The light is a form of carrier wave that is modulated to carry information. Fibre is preferred over electrical cabling when high bandwidth, long distance, or immunity to electromagnetic interference is required. This type of communication can transmit voice, video, and telemetry through local area networks or across long distances.
Optical fibre is used by many telecommunications companies to transmit telephone signals, Internet communication, and cable television signals. Researchers at Bell Labs have reached a record bandwidth–distance product of over 100 petabit × kilometers per second using fibre-optic communication.
Northampton /nɔːrˈθæmptən/ (About this soundlisten) is a large market town and the county town of Northamptonshire in the East Midlands of England. It lies on the River Nene, 60 miles (97 km) north-west of London and 50 miles (80 km) south-east of Birmingham. One of the largest towns (as opposed to cities) in England, it had a population of 212,100 at the 2011 census (223,000 est. 2019).
Archaeological evidence of settlement in the area dates to the Bronze Age, Romans and Anglo-Saxons. In the Middle Ages, the town rose to national significance with the establishment of Northampton Castle, an occasional royal residence which regularly hosted the Parliament of England. Medieval Northampton had many churches, monasteries and the University of Northampton, all enclosed by the town walls. It was granted a town charter by Richard I in 1189 and a mayor was appointed by King John in 1215. The town was also the site of two medieval battles, in 1264 and 1460.
Northampton supported the Parliamentary Roundheads in the English Civil War, and Charles II ordered the destruction of the town walls and most of the castle. The Great Fire of Northampton in 1675 destroyed much of the town. It was soon rebuilt and grew rapidly with the industrial development of the 18th century. Northampton continued to grow with the arrival of the Grand Union Canal and the railways in the 19th century, becoming a centre for footwear and leather manufacture.
Northampton's growth was limited until it was designated as a New Town in 1968, accelerating development in the town. It unsuccessfully applied for city status in 2000.