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Two-way Doppler experiments based on electromagnetic waves (EMW) and intrinsic frequency
measurements require one clock only and there is no need for ?synchronization?. Thus
it should be possible in principle to determine motion wrt a hypothetical ether at rest as reference
system.

A 25 GHz radar source with a linear drive in front are mounted on a table, the latter designed
to give a reflector a constant or periodic transversal motion, e.g. at some radial 20 m/s (reflector
in linear, streaming, rotating or vibrating motion). Earth's travel towards Leo at 368 km/s
should effect a difference of 5 mHz between the 3 kHz beat frequency towards Leo and perpendicular,
respectively.

An ultrasonic range finder was mounted on a horizontally rotatable rail at fixed distance, s, to a reflector on the top of a car. The change of the distance reading, s, served to determine the two-way velocity of sound as a function of [car] velocity and direction. Result: the out- and back velocity c₂ was isotropic as in the optical case of the Michelson-Morley experiment. Within the experimental error it was found to vary as c₂ = (c² - v²) / c.

The Michelson-Morley null result is readily explained as a classical Doppler effect due to the fact that the out-and-back phase velocity is isotropic and thus in both arms of the Michelson Interferometer equal to c?= c (1-v²/c²). It is important to emphasize that the phase velocities rather than the group velocities must be considered which are different from each other in the transverse arm whereas they are identical in the longitudinal arm. This means that the Michelson Interferometer is -in principle ? unsuited to detect an absolute frame of reference or ether-drift. In order to reliably detect an absolute frame of reference where the speed of light is isotropic an experimental setup allowing to measure the one-way-phase velocity of an electromagnetic wave must be used. In this presentation a microwave setup will be described which uses a 12.5 GHz signal traveling along a 3 m long signal path. Both generator and oscilloscope are synchronized by a specially designed 3 m long ?micro-electro-mechanical? transmission line providing a non-electromagnetic signal path. This setup should be capable of detecting the absolute velocity of our solar system relative to the Cosmic Microwave Background (~360km/s) in a similar manner as Marinov had done it already in 1975.

There is no aberration of terrestrial sources, because the light-vector has an inertial component. A new analysis of the Michelson Morley experiment shows: Light propagates anisotropically relative to a moving system, dependent on the velocity and the angle between the velocity and the direction of motion. The two way (back and forth) velocity is isotropic, but also dependent on the velocity of the frame. There is no Lorentz contraction. - A real ultrasonic experiment shows: Also the propagation of sound follows the given general conical section equation and an acoustical Michelson Morley experiment gives the same zero result as the optical experiment in contrast to the school of thought. - The theory of relativity is incorrect and the existence of a luminiferous ether as a propagation medium and an absolute frame of reference is again obvious. Some properties of the ether and a fundamental cause of the dependency of the velocity on the mass and the frequency are presented.

There is no aberration of terrestrial sources, because the lightvector has an inertial component. A new analysis of the Michelson Morley experiment shows: Light propagates anisotropically relative to a moving system, dependent on the velocity and the angle between the velocity and the direction of motion. The two way (back and forth) velocity is isotropic, but also dependent on the velocity of the frame. There is no Lorentz contraction. - A real ultrasonic experiment shows: Also the propagation of sound follows the given general conical section equation and an acoustical Michelson Morley experiment gives the same zero result as the optical experiment in contrast to the school of thought. - The theory of relativity is incorrect and the existence of a luminiferous ether as a propagation medium and an absolute frame of reference is again obvious