The thought experiment proposed by Langevin in 1911, known under the popular names, "Clock Paradox" or "Twin Paradox", is the most surprising result of the theo
The thought experiment proposed by Langevin in 1911, known under the popular names, 'Clock Paradox' or 'Twin Paradox', is the most surprising result of the theo
This book takes the reader from the preliminary ideas of the Special Theory of Relativity (STR) to the doorsteps of the General Theory of Relativity (GTR).The f
"A work of scientific substance and critical wisdom, developed in the urbane idiom of a French scholar." -- J. T. Fraser, founder, International Society for the
"Rarely has Heinlein pushed his imagination further...a vivid, stirring experience."--Chicago Tribune "One of the superb Heinlein stories that has excitement, u