Anomalous movement resistance in a spinning gyroscope
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From: top9 on 1 Apr 2006 12:01 http://www.oswirus.krakow.pl/cat_14/gyroscope/ A symmetric harnessed gyroscope accelerated to a given spinning frequency takes different time periods to stop, depending on the direction of previous spins. For repeated alternating, anticlockwise and clockwise spinning, the rotation period in both directions significantly increases, which is not the case when the gyroscope is repeatedly rotated in the same direction. Using the measurements it was observed, that the time of gyroscope's rotation was significantly lengthened or shortened, what indicates that it either increased or decreased the movement resistance of the gyroscope. The presented experimental results suggest the existence of anomalous movement resistance and demonstrate that a fixed spinning gyroscope displays unusual history-dependent movement resistance effects. The effect is real, large, reproducible and does not follow from experimental errors. The manuscript was reviewed thrice, according to the publishing procedure in "Physical Review Letters" within two year. The remarks of all the reviewers were taken into account during its correction. Because the publishing procedure for our manuscript in "Physical Review Letters" finished, we decided to publish it in Journal of Technical Physics, J.Tech. Phys., 46, 2, 107-115, 2005.
From: Roy L. Fuchs on 1 Apr 2006 12:14 On 1 Apr 2006 09:01:18 -0800, top9(a)gazeta.pl Gave us: >http://www.oswirus.krakow.pl/cat_14/gyroscope/ > >A symmetric harnessed gyroscope accelerated to a given spinning >frequency takes different time periods to stop, depending on the >direction of previous spins. For repeated alternating, anticlockwise >and clockwise spinning, the rotation period in both directions >significantly increases, which is not the case when the gyroscope is >repeatedly rotated in the same direction. Using the measurements it was >observed, that the time of gyroscope's rotation was significantly >lengthened or shortened, what indicates that it either increased or >decreased the movement resistance of the gyroscope. The presented >experimental results suggest the existence of anomalous movement >resistance and demonstrate that a fixed spinning gyroscope displays >unusual history-dependent movement resistance effects. The effect is >real, large, reproducible and does not follow from experimental errors. If you are talking about a captivated gyro, those bearings have very small perturbations in their operation. That would be a quite chaotic perturbation, so results will never follow a trend, unless actual metal wear was involved. The best way is to spin the gyro up to speed, and release it from the axle bearings.. Of course, this requires that you be in earth orbit, or other suitable gravity free environment. THAT free spinning gyro could then be tested with reliable results. Hope you have several years to wait for each spin down though. > >The manuscript was reviewed thrice, according to the publishing >procedure in "Physical Review Letters" within two year. The remarks of >all the reviewers were taken into account during its correction. >Because the publishing procedure for our manuscript in "Physical Review >Letters" finished, we decided to publish it in Journal of Technical >Physics, J.Tech. Phys., 46, 2, 107-115, 2005. What kind of gyros?
From: CWatters on 1 Apr 2006 14:43 <top9(a)gazeta.pl> wrote in message news:1143910878.309304.114640(a)g10g2000cwb.googlegroups.com... > http://www.oswirus.krakow.pl/cat_14/gyroscope/ > > A symmetric harnessed gyroscope accelerated to a given spinning > frequency takes different time periods to stop, depending on the > direction of previous spins. For repeated alternating, anticlockwise > and clockwise spinning, the rotation period in both directions > significantly increases, Would have been interesting to do a RRRRRR run but with the giro disc turned over between each run. That way the bearings turn the same way and the giro disc alternates direction. Not sure why that wasn't done.
From: top9 on 2 Apr 2006 06:06 Polish experiments with turbine Scientists from the Jagellonian University and Opole University have observed that multiple rotation of a simple turbine showed that the more times you turned it, the longer it rotated on its own later, although, theoretically, it should not. They published the results of their research in "Journal of Technical Physics". THE ROTOR "REMEMBERS" THE EARLIER TURNS "It turns out that the rotor 'remembers' the earlier rotations and so the more it is turned, the longer it will spin later. This effect is more noticeable when the turn is in a different direction, that is the turbine is turned first to the left, then to the right" - explains Jerzy Mazur, a physicist, one of the authors of the article. When the rotor is turned in different directions it appears to spin for much longer. It also has a different timing for different directions. The experiment was conducted with the use of a turbine fixed in a bearing (i.e. a gyroscope secured in a yoke). A gyroscope is a mechanical appliance used mainly as a stabiliser. The simplest version is a heavy wheel rotating round its own axis. The experiment involved giving an impetus at a given speed and then stopping it so that the friction of the bearing would cause it to stop. The speed and time was measured by computer. BEARING OR TEMPERATURE The experimenters did ten minute breaks between each run so as to allow the bearing to cool. Another session of measurements was conducted to check whether the changes were not an effect of the smoothing of the mechanism. "The rotor's axis was placed vertically, so the bottom bearing was in work mostly as it was weighted with the turbine. After the first measurement, the yoke was turned so that the bottom bearing was on top and after taking five measurements the yoke was turned again and another series of measurements was taken". The results show huge differences between the measurements, which indicate that friction is not the only factor. NOBODY KNOWS THE CAUSE "We cannot establish the cause of this phenomenon. We have discovered the effect and now theorists are trying to get their head round it. But this may change thinking about basic mechanics. We have run this experiment for a few years on different gyroscopes and we have achieved the same effect. We have made around two-hundred-and-fifty thousand measurements" - says Mazur. The authors of the experiment would like other physicists to also research this problem as it will enable the problem to be solved, which may cause a technological breakthrough. It may be a solution as to why temperature rises due to friction in turbogenerators (turbine electrical generators), which usually results in damage. The research was conducted in the Physical Chemistry Institute of the Jagellonian University as part of a science research contract signed between Jerzy Mazur's team and the Rector for Science Research at the Jagellonian University, Professor Maria Nowakowska.
From: top9 on 2 Apr 2006 13:48
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