4) METRIC USED (The BIPM has been transferred in Belgium at this address !). ---[ Return home ]

A) Absolute second.

The absolute second is equal to 9,192,631,770 periods of the hyperfine transition between the levels of the fondamental state of ceasium 133 of an atomic clock at rest in ether far from massive objects.

B) Absolute meter.

The absolute meter is the distance reached by the hypersound-waves (or light) in :

1/299,792,458 seconds in a frame at rest in ether, far from massive objects.

C) One-way absolute hypersound-velocity (light speed).

That means that the one-way velocity of the hypersound-waves is set to 299,792,458 m/s in the rest frame like the French BIPM (Sèvre) defined it for light in any frame and on basis of the erroneous theory of " relativity ".

D) Relative second.

The relative second is equal to 9,192,631,770 periods of the hyperfine transition between the levels of the fondamental state of ceasium 133 of an atomic clock in motion in ether at the absolute velocity v measured in the rest frame.

In this case [relative second] = [absolute second]/sqrt(1-bb) with b=v/c.

The relative second is thus only variable in the rest frame and is connected to the absolute velocity v of the moving frame (because it is impossible to see its changes with an other clock in motion, which changes the same way).

E) Relative meter.

The relative meter is the distance of a mirror in any direction which needs

2/[299,792,458] relative seconds in a moving frame for a round-trip of an hypersound-wave.

It will be shown in the theory, that such a meter is always in agreement with a new calibration in the moving frame even if the direction in space is changed or if the velocity of the frame is changed. A meter from the rest frame in the moving frame becomes automatically a relative meter. Thus, a meter calibrated in the moving frame will never appear to change with this method.

On the contrary of the relative second, it will be shown that the relative meter is additionally variable, in the rest frame, with the direction,according to the formula:

, a is the angle (measured in the rest frame) between the X' axis (of motion) of the moving frame and the relative unit-length (meter). Ma stands for absolute meter and Mr for relative meter.

F) Relative round-trip hypersound velocity = Absolute one-way speed of light.

Finally the use of these relative natural definitions leads to a round-trip velocity of the hypersounds (or light) of exactly 299,792,458 m/s in a frame of any velocity and in any direction !

Such an incredible physical fact is the origin of the negative result of Michelson-Morley experiment and is also responsible of the fact that physics has been on a wrong track during one century due to a mass hysteria in favour of Einstein.