Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-L] Mesmerizing



Ze'ev,

my comment carefully did not limit itself to mechanically coupled systems.
You will recall the experimental studies of female student menstrual cycle coupling, for example.

Brian Whatcott Altus OK


On 9/15/2013 5:37 PM, Bernard Cleyet wrote:
On 2013, Sep 15, , at 11:04, Ze'ev Wurman <zeev@ieee.org> wrote:

On 9/15/2013 8:00 AM, brian whatcott wrote:
Actually, it is found that very small amounts of energy applied cyclically, will eventually synchronize devices which share a resonant frequency. Applies to electronic devices too, despite Z'ev's misgivings.

Perhaps a more careful reading would have helped you. All I wrote is that "Much harder to achieve with electronic metronomes." Any coupled systems will affect each other, but it is harder to get mechanical coupling affect electronic gizmos unless they were designed for it (e.g., mechanically coupled tuning capacitor/coil). Read before jumping.


_______________________________________________
Forum for Physics Educators
Phys-l@phys-l.org
http://www.phys-l.org/mailman/listinfo/phys-l


Unavoidably easy w/ microphonic tubes. May have been the prob. RP solved by exchanging tubes.

Yes an e-metronome using, for example, a Wien selected tubed oscillators, I suspect, would be subject to mechanical coupling.

bc has encountered the prob. in a more modern radio, and made an e-metronome in the sixties.
_______________________________________________
Forum for Physics Educators
Phys-l@phys-l.org
http://www.phys-l.org/mailman/listinfo/phys-l