Magnetic braking of magnets sliding along a sloped aluminum surface

[slapper]

Dropping magnets between aluminum plates seem to help provide more consistent results.

Seems that this is like the Boyd Bushman demonstration during a David Sereda interview.

I would be curious to see what radially programmed magnets would do while dropping down an aluminum or copper tube. My guess is that there would be a big difference depending on the polarity.

I'd volunteer to help emptying a beer keg but that has gotten me in trouble in the past... when I was just a kid. That's why I got involved with these projects. uhm - anyway. 'the more things change the more they stay the same'.

Take care.

nap

[BEP]

http://www.youtube.com/watch?v=g8SyeUAA504

http://www.youtube.com/watch?v=NZhljtwJHKw

Hmmm?

Hole flow with one pole and electron flow with the other?
(or if you want to get wild - Lorentz invariance with one pole and Lorentz covariance with the other)

The 'preferred' clockwise rotation doesn't surprise me. I've seen it in electrostatics. Don't have an explanation either.

What I find interesting is the magnet pair presents it's equator to magnetic North/South.


Excellent work!

Edit>>>
It would be interesting to see if that unexpected rotation was the same in the Southern hemisphere.
People can say what they want about Coriolis. I've had experiences that have proved it to me.

[0c]

According to TK's latest comment on his youtube video, the asymmetry may be due to the inclination of the earth's magnetic field.

http://www.youtube.com/watch?v=bas00qdj6Xc

If that is so, then I have some questions:

Why was no difference in behavior seen between northern and southern hemispheres?

Why were no differences noted based on the geographic orientation of the slope?

(Thanks wattsup, maybe this thread will get more attention now)

[BEP]

According to TK's latest comment on his youtube video, the asymmetry may be due to the inclination of the earth's magnetic field.

http://www.youtube.com/watch?v=bas00qdj6Xc

If that is so, then I have some questions:

Why was no difference in behavior seen between northern and southern hemispheres?

I suspect it has more to do with latitude. Perhaps the effect is equal at +30 compared to -30 and only slight difference between +30 and -25, as an example.

Why were no differences noted based on the geographic orientation of the slope?

Because the flux density is the same at one location regardless of orientation.

Of course, the above offered explanations only work if you believe the magnets are not the source of the magnetic flux but only focal points of ambient flux.

So the expected result would be greater deflection the closer you are to either of Earth's magnetic poles - virtually no noticeable difference between S or N when near the equator and TK's self spinning magnet above a superconductor would then change preferred rotation direction when moving to the other side of the equator and probably would not rotate when near the equator.

Consider the above for what you think it is worth.

[lumen]

It is likely more to do with the direction and the field density as it enters the aluminum plate compared to the same as it leaves the plate.

Small area entering with large area exiting is different than large area entering and small area exiting.