Brace found no signs of double refraction (due to FitzGerald–Lorentz Contraction) of moving bodies in the aether. 1903 – the Trouton–Noble experiment, based on an entirely different concept using electrical forces, also produces the null result 1905 – Miller and Morley's experiment data is published. Test of the Contraction Hypothesis has negative results. Test for aether dragging effects produces null result. 1908 – the Trouton–Rankine experiment, another experiment based on electrical effects, does not detect the FitzGerald–Lorentz Contraction. Change 1904 – Hendrik Lorentz publishes a new theory of moving bodies, without discarding the stationary (electromagnetic) ether concept. 1905 – Henri Poincaré shows that Lorentz's theory fulfills the principle of relativity, and publishes the Lorentz transformations. His model was still based on Lorentz's ether, but he argues that this aether is perfectly undetectable. 1905 – Albert Einstein publishes an observationally equivalent theory, but complete with a derivation from principles alone (leaving the ether aside). Einstein also emphasized that this concept implies the relativity of space and time. He later labelled it special relativity. 1908 – Trouton–Rankine experiment shows that length contraction of an object according to one frame does not produce a measurable change of resistance in the object's rest frame 1913 – Georges Sagnac uses a rotating MMX device and receives a clearly positive result. The so-called Sagnac effect was considered excellent evidence for aether at the time, but was later explained via general relativity. Good explanations based on SR also exist. 1914 – Walther Zurhellen uses observations of binary stars to determine if the speed of light is dependent on movement of the source. His measurements show that it is not to 10−6. This is claimed to be additional evidence against aether dragging. 1915 – Einstein publishes on the general theory of relativity. 1919 – Arthur Eddington's Africa eclipse expedition is conducted and appears to confirm the general theory of relativity. 1920 – Einstein says that special relativity does not require rejecting the aether, and that the gravitational field of general relativity may be called aether, to which no state of motion can be attributed. 1921 – Dayton Miller conducts aether drift experiments at Mount Wilson. Miller performs tests with insulated and non-magnetic interferometers and obtains positive results. 1921 to 1924 – Miller conducts extensive tests under controlled conditions at Case University. 1924 – Miller repeats his experiments at Mount Wilson and yields a positive result. Rudolf Tomaschek uses