Kennedy-Thorndike experiment

The Kennedy-Thorndike experiment took place for many months as the Earth moved around the sun.

Therefore both length contraction and time dilation are required to explain the negative result of the Kennedy-Thorndike experiment.

Kennedy-Thorndike experiment, by which the dependence of the speed of light on the velocity of the measuring device can be tested.

Kennedy-Thorndike experiment, testing the dependence of the speed of light on the velocity of the apparatus with respect to a preferred frame.

The Kennedy-Thorndike experiment shows that measured time as well as length are affected by motion, in accordance with the theory of special relativity.

In some of them, the devices were rotated or remained stationary, and some were combined with the Kennedy-Thorndike experiment.

Contrary to Michelson-Morley, the Kennedy-Thorndike experiments employ different arm lengths, and the evaluations last several months.

Together with the Michelson-Morley and Kennedy-Thorndike experiments, it forms one of the fundamental tests of special relativity theory.

The Kennedy-Thorndike experiment first conducted in 1932, is a modified form of the Michelson-Morley experimental procedure, testing special relativity.

Fig. 3 presents a simplified schematic diagram of Braxmaier et al.'s 2002 repeat of the Kennedy-Thorndike experiment.

Improved variants of the Kennedy-Thorndike experiment have been conducted using optical cavities or Lunar Laser Ranging.

Modern variants of Michelson-Morley and Kennedy-Thorndike experiments have been conducted in order to test the isotropy of the speed of light.

For instance, the original Kennedy-Thorndike experiment set bounds on RMS velocity dependence of 10, but current limits are in the 10 range.

These are the Michelson-Morley experiment, the Kennedy-Thorndike experiment, and the Ives-Stilwell experiment.

The Kennedy-Thorndike experiment was designed to do that, and was first performed in 1932 by Roy Kennedy and Edward Thorndike.

Another type of interferometer experiment was the Kennedy-Thorndike experiment in 1932, by which the independence of the speed of light on the apparatus' velocity was confirmed.

Since Voigt's transformation preserves the speed of light in all frames, the Michelson-Morley experiment and the Kennedy-Thorndike experiment can not distinguish between the two transformations.

Using this model, the Michelson-Morley experiment, Kennedy-Thorndike experiment, and Ives-Stilwell experiment put sharp constraints on violations of Lorentz invariance.

Besides the mentioned variations of Michelson-Morley and Kennedy-Thorndike experiments, Hughes-Drever experiments are continuing to be conducted for isotropy tests in the proton and neutron sector.

Kennedy and Thorndike now argued that they could derive the complete Lorentz transformation solely from the experimental data of the Michelson-Morley experiment and the Kennedy-Thorndike experiment.

This also affects the role of time dilation in the Kennedy-Thorndike experiment, because its value depends on the value of length contraction used in the analysis of the experiment.

It was in fact the negative result of a famous experiment, that required the introduction of Lorentz contraction: the Michelson-Morley experiment (and later also the Kennedy-Thorndike experiment).

The velocity of light is independent of the direction of velocity of the observer, as demonstrated by Michelson-Morley experiment, Kennedy-Thorndike experiment, and many others (see luminiferous aether).

As shown by Howard Percy Robertson, the complete Lorentz transformation can be derived, when the Ives-Stillwell experiment is considered together with the Michelson-Morley experiment and the Kennedy-Thorndike experiment.

But in the Kennedy-Thorndike experiment, the lengths L and L are different from the outset, so it is also capable of measuring the dependence of the speed of light on the velocity of the apparatus.