Can a Self-Supply Gravity Motor Generate Infinite Energy?

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Discussion Overview

The discussion revolves around the feasibility of a self-supply gravity motor that could generate infinite energy by using a falling weight to power a rotor. Participants explore concepts related to energy conservation, potential mechanisms for energy recovery, and the implications of perpetual motion machines.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants assert that it is impossible to generate enough energy from a falling weight to lift it back up due to energy losses from friction.
  • Others suggest that using a trampoline might assist in lifting the weight, although this is met with skepticism regarding energy conservation principles.
  • One participant mentions that even the act of accelerating the mass could lead to energy loss through the emission of gravity waves.
  • A participant proposes the use of magnetic force to assist the weight, which raises further questions about energy recovery mechanisms.
  • There is a reminder that discussions about perpetual motion machines are not permitted, emphasizing the community's stance on these concepts.

Areas of Agreement / Disagreement

Participants generally disagree on the feasibility of recovering energy from a falling weight, with multiple competing views on potential mechanisms and the implications of energy conservation laws.

Contextual Notes

The discussion highlights limitations related to energy conservation principles and the challenges of overcoming friction and other energy losses. There is also a reference to community guidelines that restrict discussions on perpetual motion machines.

13lackJesus
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Is it possible to create enough energy( by letting a pound falling to crank a rotor) to bring back up the pound?
 
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13lackJesus said:
Is it possible to create enough energy( by letting a pound falling to crank a rotor) to bring back up the pound?
No.
There is always some energy lost due to friction so that you get less stored energy than would be needed to bring the weight back to its original position.
 
if you use a trampolin at the end to help a little the lift?
 
13lackJesus said:
if you use a trampolin at the end to help a little the lift?

Nope. There is no way around energy conservation and there will always be some losses.

You should read up on perpetual motion machine of the third kind.
 
13lackJesus said:
Is it possible to create enough energy( by letting a pound falling to crank a rotor) to bring back up the pound?
It's possible IF,no external forces were present.but this is not the case of our universe(as far as I know of it)Friction and air-resistance will of course make it lose energy.
 
It's not even an issue of external forces like friction or air resistance, even the simple act of accelerating the mass causes it to emit gravity waves and lose energy.
 
if you help the pound with magnetic force?
 
I'm sorry, we don't discuss ideas for perpetual motion machines here, even to debunk them.

You can find some useful links in our list of banned topics, under 'Perpetual motion and "free energy" discussions', in the second post of our 'Rules & Guidelines' thread:

https://www.physicsforums.com/showthread.php?t=414380
 

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