The ABC of Relativity

Bertrand Russell (1872 - 1970). Philosopher mathematician educational and sexual reformer pacifist prolific letter writer author and columnist Bertrand Russell was one of the most influential and widely known intellectual figures of the twentieth century. In 1950 he was awarded the Noble Prize for Literature in 1950 for his extensive contributions to world literature and for his rationality and humanity as a fearless champion of free speech and free thought in the West.Bertrand is the Author of:The principles of mathematicsProposed Roads to FreedomWhy Men Fight and this 1925 The ABC of Relativity This is an ideal introduction to the theories of special and general relativity” in clear comprehensible language (Reviewed by Nature). The contents of this book are widely accepted by the entire scientific audience and comes with the following active table of contents:Touch and sight: the earth and the heavens --What happens and what is observed --The velocity of light --Clocks and foot-rules --Space-time --The special theory of relativity --Intervals in space-time --Einstein's law of gravitation --Proofs of Einstein's law of gravitation --Mass momentum energy and action --Is the universe finite? --Conventions and natural laws --The abolition of force --What is matter? --Philosophical consequences.