Along with Bertrand Russell, he was one of just two  philosophers in the twentieth century to be made a fellow of the  Royal Society.
Along with Bertrand Russell, he was one of just two  philosophers in the twentieth century to be made a fellow of the  Royal Society. His first book, _Logik der Forschung_, focuses on  "the problem of induction" and "the problem of demarcation," while  his _The Open Society and its Enemies_ was a popular critique of  totalitarianism. FTP, name this Vienna-born philosopher of  science, the father of the principle of falsification.
Along with Bertrand Russell, he was one of just two  philosophers in the twentieth century to be made a fellow of the  Royal Society.
Karl {Popper}