Portsmouth enrols 23,000 students and is ranked among the world's best modern universities. Portsmouth is also the birthplace of author Charles Dickens and engineer Isambard Kingdom Brunel. The Romans built Portus Adurni, a fort, at nearby Portchester in the late third century. The city's Old English name "Portesmuða" is derived from "port", meaning a haven, and "muða", the mouth of a large river or estuary. The "Anglo-Saxon Chronicle" has a warrior called Port and his two sons killing a noble Briton in Portsmouth in 501. Winston Churchill, in his "A History of the English-Speaking Peoples", says that Port was a pirate
RD-180 hydraulic actuators. The engine can be throttled from 47% to 100% of nominal thrust. During the early 1990s, General Dynamics Space Systems Division (later purchased by Lockheed Martin) acquired the rights to use the RD-180 in the Evolved Expendable Launch Vehicle (EELV) and the Atlas program. As these programs were conceived to support United States Government launches, as well as commercial launches, it was also arranged for the RD-180 to be co-produced by Pratt & Whitney. However, all production to date has taken place in Russia. The engine is currently sold by a joint venture between the Russian developer and