The Truth: The Relationship Between Magnets and Free Energy

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Discussion Overview

The discussion revolves around the relationship between magnets and free energy, specifically examining the energy dynamics involved when a magnet is placed against a surface like a fridge. Participants explore concepts related to energy expenditure, work, and the behavior of magnetic domains.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant questions whether the energy required to realign a magnet to its original strength is equivalent to the energy needed to keep it against the fridge while working against gravity.
  • Another participant asserts that conservation of energy contradicts the initial assumption about energy expenditure.
  • A claim is made that the energy required to keep the magnet against the fridge is zero, as a constant force does not imply energy expenditure.
  • One participant expresses confusion about the energy expenditure involved when physically holding the magnet against the fridge.
  • It is stated that energy changes in a physical system are caused by work, which is defined as a force over a distance, and that holding a magnet in place without movement does not involve work.
  • A clarification is provided that while the body expends energy for any activity, holding the magnet does not impart energy onto it.

Areas of Agreement / Disagreement

Participants do not reach a consensus, as there are competing views regarding energy expenditure and the nature of work in the context of holding a magnet against a surface.

Contextual Notes

Participants express confusion about the definitions and implications of energy expenditure and work, indicating a need for clarity on these concepts.

bozo the clown
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magnet and free energy

when i stick a magnet on a fridge it willl eventually slide down and fall of due the domains in the mganet nuetralizing each other out right ?

Now my question is does the energy reuiqred to realign the the magnet to its original strength = the amount of energy that is requireed to keep that magnet against the fridge working against gravity for the length of time unitll it falls off

seems like more energy to keep magnet on fridge thatn to realign it
 
Last edited:
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Conservation of energy would deem your assumption false.
 
bozo the clown said:
the amount of energy that is requireed to keep that magnet against the fridge working against gravity for the length of time unitll it falls off
That amount is zero. A constant force does not imply an expenditure of energy.
 
krab said:
That amount is zero. A constant force does not imply an expenditure of energy.

im confused if I physically hold the magnet that fell off ; agaisnt the fridge myself instead of magnetizing it am I not expending energy
 
Last edited:
Energy changes in a physical system are caused by work. Work is defined as a force over a distance. If you hold a magnet in place without moving it, there is no possible way work can be done, therefore no expenditure, or for that matter, absorption of energy.
 
bozo the clown said:
im confused if I physically hold the magnet that fell off ; agaisnt the fridge myself instead of magnetizing it am I not expending energy
Your body expends energy doing anything. But you are not imparting any energy onto the magnet by holding it against the fridge.
 
ok understand now
 

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