Click on the last subject of his signature ...prances wrote:Hi Quartz!
What are your projects?
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For the rest, this video does not shock me and seems quite realistic.
It even reminds me of when I was very young, I would move a cart forward by making it squint on a magnet that I held in my hand.
There was food for thought, in my developing neurons ...
Because all the difficulty was to start the advance, then suddenly to be able to move the magnet back, just enough, so that the cart continued its course, taking care that it does not come to stick to the magnet.
Not easy ! You have to play between the inertia of the mobile and the speed of removal of the magnet ...
Here it is the same phenomenon.
The slope of the wheel already makes it possible to slow down the acceleration of the ball.
We see that when the ball is about to catch, it does not advance the magnet, for fear that the ball will jump on contact.
No, with his hand on the axle, he slightly triggers the rotation of the wheel and thus and also allows the ball to begin its rotation.
With the inertia of the ball, the slope and the assistance to the rotation of the wheel (in the opposite direction), the attraction movement is supposed to be prolonged and to be less immediate.
For a prolonged movement, it will be necessary to play on a back and forth of the attractor magnet.
Nothing perpetual, since it is this movement of the magnet which controls.
A simpler model to make, would be to use instead an electromagnet that could be supplied according to a sequence
(since the discovery of the magnetic screen is still not relevant)