Task: Question Answering
Input (English): Passage: Bristol has two major institutions of higher education: the University of Bristol, a redbrick chartered in 1909, and the University of the West of England, opened as Bristol Polytechnic in 1969, which became a university in 1992. The University of Law also has a campus in the city. Bristol has two further education institutions (City of Bristol College and South Gloucestershire and Stroud College) and two theological colleges: Trinity College, and Bristol Baptist College. The city has 129 infant, junior and primary schools,17 secondary schools, and three learning centres. After a section of north London, Bristol has England's second-highest number of independent school places. Independent schools in the city include Clifton College, Clifton High School, Badminton School, Bristol Grammar School, Queen Elizabeth's Hospital (the only all-boys school) and the Redmaids' School (founded in 1634 by John Whitson, which claims to be England's oldest girls' school).
In 2005 Chancellor of the Exchequer Gordon Brown named Bristol one of six English "science cities",
and a £300 million science park was planned at Emersons Green. Research is conducted at the two universities, the Bristol Royal Infirmary and Southmead Hospital, and science outreach is practiced at We The Curious, the Bristol Zoo, the Bristol Festival of Nature and the Create Centre.The city has produced a number of scientists, including 19th-century chemist Humphry Davy (who worked in Hotwells). Physicist Paul Dirac (from Bishopston) received the 1933 Nobel Prize for his contributions to quantum mechanics. Cecil Frank Powell was the Melvill Wills Professor of Physics at the University of Bristol when he received the 1950 Nobel Prize for, among other discoveries, his photographic method of studying nuclear processes. Colin Pillinger was the planetary scientist behind the Beagle 2 project, and neuropsychologist Richard Gregory founded the Exploratory (a hands-on science centre which was the predecessor of At-Bristol/We The Curious).Initiatives such as the Flying Start Challenge encourage an interest in science and engineering in Bristol secondary-school pupils; links with aerospace companies impart technical information and advance student understanding of design.
The Bloodhound SSC project to break the land speed record is based at the Bloodhound Technology Centre on the city's harbourside. 
Question: What are the full names of the scientists Bristol has produced?
Output (English): Cecil Frank Powell.