What's going on here? I was testing the polarity of a magnetic foot brace today by hanging it from a thread and the darn thing just spins around going faster and faster until it is stopped by the tension of the thread. Then I tested other magnets, and if the mass is enough to keep it from being pinned, the darn things just keep spinning faster and faster. I tested this all over the house and there are no motors running or anything. What could be causing this? If I had a good bearing, the things would just keep turning.
I would like to hear if this is the case for anyone else.
Best regards,
Josh
Hello
turn to diodo and go to gnd
Gnd salt water and earth.
Regards
Can you post a picture or schematic how you did it ?
How bout a compass or magnometers (vertical compass). The Earth nearfield is generated by magnetohydrodynamic flows in the mantle. Your area may be in the center of a whirlpool down there. The compass had to be abandoned for navigation because of what you are experiencing now. The bermuda triangle I am sitting on the edge of has the same problem.
hi @ jkgulick ive done that one before and been puzzled for weeks then i found out it was the thread causing spin - i used neodymium magnets and tried a piece of stainless steel on thread and that did the same thing. I also tried making a smooth slip ring type principle add- on and no spin it just locked into the earths mag field like a compass would - i think that is what is happening by the sound of it,
:)
eel
Sorry to disappoint you, there is no magnetic interaction here.
The thread, without any load attached to it, is already flexibly wound in a spiral. If you put any load on it (try with something small but heavy), it will unwind the thread due to its weight pulling it down... and this generates the spin.
If you place a Neo magnet on it and there is some metal below on the ground, the pulling and unwinding effect will be exponentially higher.
If you have alot of metal down there and the thread starts off really wound up and the magnet is massive then it will overshoot and start winding the thread back up again in the opposite direction. The magnet will bounce up and down. If the plate is moved when it is in overshoot then things get interesting. You have yourself an oscillator. ::)