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It's not located on/at Mars, it's located at the Lagrange point - which means much like your hand can cover entire mountains at a distance, a smaller magnetic f
by eloff 10y ago
It's not located on/at Mars, it's located at the Lagrange point - which means much like your hand can cover entire mountains at a distance, a smaller magnetic field could shield an entire planet when positioned between mars and the sun.
- kurthr 10y agoBased on the drawing that they made the size is at least 1-2 diameters of mars (but there is no field there?). Since the diameter of Mars is ~4000mi that would >10,000km at 5mT. So with the mentioned 1-2 Tesla starting field, we end up and a cube law reducing the strength 200x at 6 times the distance, and a 1.5km moment. That would require at least 2-3km^2 of 1T magnets. Ignoring the support structure that would have a volume of ~10^10 cm^3 and weigh 100ktons, but only cost $100B on Earth at todays Samarium Cobalt pricing, if the market wasn't highly distorted. Sounds more reasonable...
- LeanderK 10y agosounds surprisingly realistic if you consider that this is a proposal to create an artificial magnetic shield for an entire planet.
- tankenmate 10y agoAlso, isn't there a shockwave effect?
- effie 10y agoYour hand does not cover entire mountains, only your eyes. The cross section of effective magnetic field has to cover the whole planet.