Okay people, we need the ingenious minds on this website to solve the problem of the less inclined path of escape.
What is this problem?
To build a perpetual motion device where a steel ball can go up on a ramp, pulled by a permanent magnet, and after goes down to the initial point, we need to solve the problem of the less inclined path.
Everything is centered in the Normal force:
http://en.wikipedia.org/wiki/Normal_force
The Normal force explains why the strength of the magnetic field of a given permanent magnet could be enough to make a steel ball go up in a inclined plane (a ramp), but that same steel ball falls when it reaches the "cliff", the end of the ramp, in a 90 degress free fall.
The big problem is: in order to make the ball rolls back to its initial position, we will need that the path of the "escape" of the ball from the magnet (the descending path) being less inclined than the ascending path.
The fact that the magnetic attraction force is omnidirectional complicates the "less inclined escape".
Does anyone have any idea to solve the problem of the "less inclined escape"? If we solve this problem, we have perpetual motion machine.
Quote from: Rapadura on April 11, 2010, 09:58:15 PM
Okay people, we need the ingenious minds on this website to solve the problem of the less inclined path of escape.
What is this problem?
To build a perpetual motion device where a steel ball can go up on a ramp, pulled by a permanent A, and after goes down to the initial point, we need to solve the problem of the less inclined path.
Everything is centered in the Normal force:
http://en.wikipedia.org/wiki/Normal_force
The Normal force explains why the strength of the magnetic field of a given permanent magnet could be enough to make a steel ball go up in a inclined plane (a ramp), but that same steel ball falls when it reaches the "cliff", the end of the ramp, in a 90 degress free fall.
The big problem is: in order to make the ball rolls back to its initial position, we will need that the path of the "escape" of the ball from the magnet (the descending path) being less inclined than the ascending path.
The fact that the magnetic attraction force is omnidirectional complicates the "less inclined escape".
Does anyone have any idea to solve the problem of the "less inclined escape"? If we solve this problem, we have perpetual motion machine.
The problem with this is the magnet. It will change the new "initial" position of the steel ball so the next ascending path is virtually starting on a higher level than the first initial position because the magnet is still pulling a bit on the steel ball even if it falls over the cliff.
I will give it an eyeball to see if there is something to do with it - removing the magnet temporary for the steel ball to have a correct initial level? We'll see.
Vidar
If it was possible to the steel ball to escape from the magnet going by a less inclined path, we could put the ball again in exactly the same initial point, at exactly the same initial level.
The problem is: if the descending path (path of escape) is less inclined than the ascending path, the interaction between normal force and gravity will not favour the escape. It will be easier to the magnet to attract the ball in the path of escape (less inclined) than in the ascending path, what means that will not be any escape.
There are only two possible ways to make that ball goes down in a less inclined path:
1) if the magnetic attraction force wasn't omnidirectional (no attraction in the direction of the less inclined path), or
2) if the magnet was somehow moved to a more distant point at the moment of the escape, making its magnetic attraction force weaker
Any ideas?
Just explaining why it have to be a "less inclined path": because it have to be a longer path, but the vertical distance have to be the same.
To make the ball goes down the same vertical distance, through a longer path, the path have to be less inclined.
I have a feeling that
"2) if the magnet was somehow moved to a more distant point at the moment of the escape, making its magnetic attraction force weaker"
can be possible.
Someone has any idea of how to move the magnet to a more distant point during the timeframe of the escape?
Hmmm... I was thinking of this: