Michelson–Morley experiment
Shankland's report on the Albert A. Michelson's Irvine Ranch experiments was published in 1953. In the British journal "Nature", Shankland gave the historical background of how Einstein formulates the first two principles, in 1905, of the special theory of relativity from the Michelson–Morley experiment. Shankland believed that the accepted direct explanation for the Michelson–Morley experiment is provided by the special theory of relativity given by Einstein in 1905. Shankland recorded that Michelson's Santa Ana trip was to look at the science of the aether.