Bertrand Russell was a British polymath and Nobel laureate. His work, which is spread across various fields, has had a considerable influence on philosophy, cognitive science, artificial intelligence, mathematics, linguistics, and logic. Russell is also credited with leading the revolt against idealism in Britain and is regarded as one of the founders of analytic philosophy.
Welsh naturalist Thomas Pennant is remembered for his extensive research on zoology, especially ornithology. Known for his books such as British Zoology and History of Quadrupeds, he traveled to Scotland and remote parts of Britain, writing about his expeditions in his travelogues and treatises.
Theoretical chemist and physicist John Maddox is best remembered for his science writing and his 22-year stint as an editor of Nature. He was also associated with The Manchester Guardian, as its science editor. He was also a founding trustee of the charity Sense about Science, which promotes science among common people.
British astronomer Isaac Roberts revolutionized astrophotography with his photographs of nebulae. The son of a farmer, he had initially also worked at a mechanical engineering firm. His work in astrophotography won him the Royal Astronomical Society’s gold medal. A crater on the Moon was later named after him.
10 John Savage
Born to a Canadian physician in Wales, John Savage followed in his father’s footsteps to study medicine. He later gained the name "hippie doctor" for his beard and unconventional treatments. He later led the Nova Scotia Liberal Party and also became the Premier of Nova Scotia.