New understanding of overunity engines

[RealWheel]

The alone possibility to produce free energy is to conceive an engine where the 3rd law of Newton is violated.

Best Wishes

RealWheel

[nicbordeaux]

RealWheel, that sounds positively frightful. Would it be too much trouble to ask of you that you explain to me, a poor ignoramus, what a aggravated violation of the 3rd law of Newton would be? It sounds awfully tempting :)

[Lightwave]

Newton's 3rd law may be formally stated:

"Forces always occur in pairs. If object A exerts a force F on object B,
then object B exerts an equal and opposite force –F on object A"

or in slogan style:


"Every action has an equal and opposite reaction"

Note the important provision: two objects must be involved! There exists a whole set of situations where two equal and opposite forces act on the same object, canceling each other so that no acceleration (or even no motion) occurs. This is not an example of the third law, but of equilibrium between forces. Some examples:
A heavy object stands on the floor, pulled down by the Earth with a force mg (drawing). However, it does not move in that direction, because the floor stops it. Obviously, the floor is exerting on it an equal and opposite force -mg (velocity v=0, acceleration a=0).

An elevator is pulled up from the street level to the 5th floor. It senses two forces: downwards, its weight and that of the people in it, and upwards the pull of the cable which holds it up. Between the floors, as long as the elevator does not accelerate, the net force must be zero, hence the two forces must be equal and opposite (v>0, a=0).

[Bill_Mothershead]

OK...let one of the reaction "objects" be the earth.

The mass of the earth is so large that its "reactions"
to the small weights in a rotating wheel are not
really measurable.

[erick]

You'll never be able to violate Newton's third law. Instead, you need to use it to your advantage :-)

E

[broli]

Newtons's third can actually create energy if you don't look at a pair of forces as a closed system. Force is momentum change over time, thus an action reaction force effects the momentum of two masses equally. Newton's math allows this so I don't see why a practical methods can't be achieved. We are stuck to force over distance but it doesn't have to be that way.