Einstein and the universe: A popular exposition of the famous theory
CHAPTER II
SCIENCE IN A NO-THOROUGHFARE
_Scientific truth and mathematics—The precise function of Einstein—Michelson’s experiment, the Gordian knot of science—The hesitations of Poincaré—The strange, but necessary, Fitzgerald-Lorentz hypothesis—The contraction of moving bodies—Philosophical and physical difficulties_ pp. 32-52