Can we use paramagnetism to create a magnetic field on Mars?

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Discussion Overview

The discussion revolves around the feasibility of using paramagnetism to create a magnetic field on Mars, exploring theoretical approaches and implications related to Mars' lack of a magnetosphere and its atmospheric conditions. The scope includes theoretical and conceptual considerations.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant notes that Mars lacks a magnetosphere, which contributes to its thin atmosphere, and suggests using strong magnets to leverage paramagnetism from Iron (III) Oxide on the Martian surface.
  • Another participant challenges the practicality of this idea by questioning the availability of the necessary trillions of strong magnets.
  • A different viewpoint proposes an alternative solution, stating that re-melting Mars' core could generate a magnetic field through the movement of a ferromagnetic fluid.
  • Another participant adds that Mars' core might be in a different state than Earth's, implying that the physics governing its early magnetic field could differ significantly.

Areas of Agreement / Disagreement

Participants express differing opinions on the methods to create a magnetic field on Mars, with no consensus reached on the feasibility or practicality of the proposed ideas.

Contextual Notes

Discussions include assumptions about the state of Mars' core and the implications of using paramagnetism, as well as the logistical challenges of implementing the proposed solutions.

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Well I must admit, when it comes to magnets I haven't a clue. I know that Mars has no magnetosphere and it's why it has such a thin atmosphere. The Earth's magnetosphere, if I understand right, is not very strong, but the Earth is a rather large magnet, so it's affect on solar wind extends far out into space.

The surface of Mars is abundant with Iron (III) Oxide, which exhibits paramagnetism (atoms align in an externally applied magnetic field, amplifying the overall strength of the magnetic field). Could we not strategically place very strong magnets over the surface of Mars and take advantage of paramagnetic effects to give Mars and magnetosphere?
 
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And where are you going to get the trillions of strong magnets you need?
 
That's just silly. All you really need to do is re-melt Mars' core! The circulating ferromagnetic fluid will eventually create the field for you.
 
Mars' core could be "gooey" or even completely molten -- meaning that Mars' early Magnetic Field was powered by different Physics from Earth's.
 

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