Hey youse guys !
These are others SIMPLE PERCEIVED opinions of operation, but I am thinking that they are misdeeming it and ULTRA refining its actual operative mode as having a hidden internal " motor " being relied upon for its operation..
I can’t see that . . . .but suspecting it as really being a spiral wound coil in the center of the MOSTLY hollowed out bolt, that is between the battery connection and its grounded other end. That spiral short with HIGH CURRENT feed makes a quite strong magnetic field that induces a magnetic field out into the nut.
With that nuts then reacting as being 1 shorted turn, is being able to create its own magnetic field and obeying Oersteads thumb two finger relationship of current to induced magnetic field.
The nuts emitted magnetic field is expelled along a linear axis at the front and back side of the nut.
Player number two is being the ultra-STRONG magnetic field emitted by our modern neodymium family of magnets.
The nut has its field empowered and as the neo magnet approaches, the two fields repel and with the magnet being held / fixed in place . . . . then the field of the nut is the part that has to be the mobile unit as an induced electromagnet field to repel away from the neo magnets opposing field..
In its pushing away action, the nut will automatically have to take on the sloped threading of the bolt to impart a spinning action in order to be able to moveever further away.
The magnetic field travels with the spiral coil all the length of the bolt.
You can just bet that there is a warning not to leave the battery inside of the bolt unit any longer than is needed in doing the trick.
A physics equation to this performance is the very first days of the evolution of the neodymium magnet of a sizing just shy of the internal diameter of the internal bore of a ¾ in copper pipe.
I acquired a round one about .375 to .5 in thick and just shy of the mentioned pipes internal diameter.
You drop the magnet down in the pipe and the movement of the strong magnetic field induces a current into the immediately surrounding copper pipe, because it is acting as a shorted turn. That closest areas created magnetic fields works with the internal magnet and tries to attract it but gravity overrides it. Never the less, the magnet continues falling and carrying a moving field with it. The end effect is a contiual magnetic braking action of the falling magnet.
A steel nut would fall down a 3 ft length of copper pipe in a second, whereas this magnet would take almost 3 seconds.
I once took a “ Round steel bar ” (the magnet) inside a Homeless Despot store to the plumbing dept and asked if they had a copper pipe that " this " would just barely pass thru.
Then I held it atop the pipe to gauge size and then pulled an OOPSIE in releasing the magnet, with the clerk immediately reacting in reaching down to catch it . . . a delayed time later . . . then a repeat by himself, then an eye up to the light, but seeing no obstruction, nor bend. Then a shout out to co worker of.
HEY Ern . . . . got the gol dernest thing that I done ever seen here ! Come here a minnit !
Much action and suggestions between the two and then my taking the pipe length and my saying
“I think that this size will work.” . . . and leaving them in an utter state of confusion of what they had just experienced.
Thassssit . . . .
73’s de Edd