Momentum conversion drive possible ?

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Discussion Overview

The discussion revolves around the feasibility of a propulsion system that utilizes a magnet and a braking coil to convert the magnet's kinetic energy into electric current, with the aim of reusing the magnet for propulsion. The scope includes theoretical considerations of momentum conservation and the implications of such a system on propulsion mechanics.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant proposes the idea of braking a magnet using a coil to convert its speed into electric current, suggesting a potential for reusing the projectile.
  • Another participant argues that reactionless drives violate conservation of momentum, asserting that the proposed system cannot work as intended.
  • A different viewpoint suggests that while braking the magnet could theoretically cancel propulsion, it would primarily result in heating the environment without achieving the desired propulsion effect.
  • One participant reiterates the goal of capturing the magnet after braking it, while expressing skepticism about the feasibility of avoiding momentum loss for the entire vessel.
  • Another participant emphasizes that no arrangement of coils and currents can circumvent the conservation of momentum, reinforcing the impossibility of achieving propulsion without affecting the vessel.

Areas of Agreement / Disagreement

Participants generally disagree on the feasibility of the proposed propulsion system, with multiple competing views regarding the implications of momentum conservation. The discussion remains unresolved, as some participants maintain that the concept is fundamentally flawed.

Contextual Notes

The discussion touches on the limitations of the proposed system in relation to established physical laws, particularly conservation of momentum. There are unresolved assumptions regarding the mechanics of the braking process and energy conversion.

Johno
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Hello!

Would it be possible to brake a magnet by means of short circuiting a coil placed at the end of a plastic tube where the magnet has been accelerated in ? Is there a conversion of magnet speed to electric current/energy inside the braking coil ? It is thaught for reusing the projectile that is used for propelling forward by means of fireing it rearward.
 
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No. Reactionless drives violate conservation of momentum.
 
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You can brake a magnet again, perfectly cancelling whatever propulsion you might have gained from it before. That's a very elaborate scheme to heat the environment with no other effect. What is the goal?
 
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The goal is a propulsion system by means of throwing away a magnet weight and capturing this magnet weight agin after braking it hopefully without braking the whole wessel. ... maybe the coil energy could be recuperated and would not be lost.
 
See post #2.
 
Johno said:
The goal is a propulsion system by means of throwing away a magnet weight and capturing this magnet weight agin after braking it hopefully without braking the whole wessel
Sorry, can’t be done. You can’t get around conservation of momentum here. No matter how cleverly you arrange your coils and electric currents, you will always find that you end up braking the entire vessel so you don’t get any propulsion.

The forum rules do not allow discussion of reactionless drives, so this thread is closed.
 

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