04 experiments of rotation in level

   First we experiment the clock moving in level. We carefully adjust static equilibrium and dynamic equilibrium of the revolving bar, calibrate the plane of rotation in level, so that eliminate effect of the gravitation. We adopt the average value of 128 data to describe one point, then we get the following curve:

Fig. 4.01: Broken line chart described with experimental data

   We can find that, curves of 4 series is not on X axis, namely not 0. This shows the time that clocks moving in opposite directions is different. However, Does it means that the absolute velocity whether exist? Not, we can review the Michelson experiment. In that, the whole set floated in mercury to observe the change of interference fringe when changed the directions of the set. For the same reason, we should also try the experiment in another direction. If the data is so, we can think that the difference is caused by the device itself. Or else, it's caused by factors out of the device. We can also understand the method from another perspective. According to the relativity principle, a result of an experiment should be have nothing to do with direction of space. That is to say, the result of an experiment can not be changed after the direction of device changed.

Fig 4.02: The mark M isused to express the direction of the device (overlooking photo).

    We mark a mark M on the device, as shows in the Fig 4.02. Firstly, make the M point to the south to collect definite data. Then turning the device until M points to the north to collect definite data, we got the Fig. 4.03: (Experiment is called SN according to the direction of mark M)

   
              Fig 4.03 SN experiment    8/14/2006 12:00 PM  

    However, the result of an experiment relate to the direction of device. In order to change the direction reposefully and carry on more experiment, we had made a rotary platform , as shows in the Fig. 4.04. and adjust carefully screws at the bottom to adjust the interface in the level.

1: exact interface      2: adjust screws
Fig. 4.04 rotary platform

Fig 4.05 the whole device placed on the rotary platform

    In Fig 4.03, the average of series-1 changed 590 , blue black curve, that clocks moving in south-north direction,it is close to the expected data 441. However, the average of series-3 changed 1231, yellow curve, the clock moving in east-west, than the expected data is only 53, more experimemt is the same. What is the reason? If caused by absolute velocity, in the 24 hours, these data should change with the earth's rotation. We will observe the characteristic of data of 24 hours in a day.

Zhan, Li Kui 6/18/2007

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