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Today the moon does not have a global magnetic field, but interest was piqued after moon rock collected during the Apollo missions appeared to suggest that it had one billions of years ago. Previously scientists did not know whether the moon itself generated the magnetic field, or if it was due to outside forces.
The researchers postulate that planets move electrically conducting fluids around themselves, thus generating magnetic fields through a process that they liken to a dynamo.
The study of planetary magnetic fields has revealed that they are powered by the convection of electrically conducting fluids, but a lunar dynamo of this nature would have cooled relatively quickly given the small size of the moon’s core.
We still do not know when the moon stopped producing a magnetic field, or why it varied in strength over time. While studying economics, Brendan found himself comfortably falling down the rabbit hole of restaurant work, ultimately opening a consulting business and working as a private wine buyer. Space Exploration Stack Exchange is a question and answer site for spacecraft operators, scientists, engineers, and enthusiasts. Yes, and in fact, magnetic torquers are more efficient in polar orbits than in equatorial ones.
When a spacecraft is in a polar orbit, it experiences higher magnetic flux (passes through more lines), and thus is exposed to a stronger magnetic field. The map below shows a map of the Earth's magnetic field strength (numbers are in nanoTeslas).
As you can see (and as this page confirms), the magnetic field strength at the poles is about twice that of the equatorial field strength.

As you can plainly see, the higher the magnetic field strength ($B$), the larger the torque ($T$).
Not the answer you're looking for?Browse other questions tagged artificial-satellite attitude magnetic-field magnetorquer or ask your own question. Passive attitude stabilization with magnets - are there studies based on actual flight data? When requesting a donation, is it better to have a prefilled button or enter their own value? Do people forget where something protected by the Fidelius charm is, if the spell is cast after they already know this location? Earth's magnetic field Practice Objectives Background Materials Method Resistors Magnetic field of the coil Circuit assembly Earth's magnetic field Results Appendixes Earth's magnetic field Laboratory work Enter the compass in the center of the coil with care not to damage the welds in the coil terminals. Gambassa scaffolds the process while embracing voice and choice in both teacher-guided and student-led projects. Scientists still do not fully understand why the magnetic field was so strong and when it ended. They claim that if the moon had a similar internal dynamo, it would allow us to better understand its inner structure, which has long puzzled scientists. One explanation is the presenceĀ of less viscous, radioactive material, which would keep it warmer. Another theory draws on the crystallization seen in theĀ Earth’s core, which causes lighter elements to float to the top, and this kind of movement could also have sustained the lunar dynamo.
There are evidently huge gaps in our understanding of the lunar core for scientists to ponder for the foreseeable future.

On a whim, he moved to China, and in his first week following a triumphant pub quiz victory, he found himself bleeding on the floor based on his arrogance. As you can see here, higher altitudes decrease the field strength drastically, which in turn decreases the torque you'll see from your magnetic torquer. The compass should be located in the center of the window, in a horizontal plane and north-south direction perpendicular to the axis of the coil.
The same man who put him there offered him a job lecturing for the University of Wales in various sister universities throughout the Middle Kingdom. However, they become an issue if you intend to passively stabilize your satellite with magnets (which is at least being attempted). This step must be performed as accurately as possible and with the help of the wire that has not been painted in black. While primarily lecturing in descriptive and comparative statistics, Brendan simultaneously earned an Msc in Banking and International Finance from the University of Wales-Bangor. I have seen too many misconceptions in this field, so that's why I would like Hash to confirm, what he is asking about. To do this, double check occasionally that the needle remains in the initial position before closing the switch.

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