- #1
bonekeeper
- 1
- 0
Hello everybody:
I've got a few questions that I could not find answers to, so perhaps someone on this forum can help me out:
1) If a magnet loses it's magnetism when heated, and magnetism is caused when electrons are aligned in a specific way, how come the Earth's magnetic field is possible, supposing it would be hard to have any coherent electron state in such environment ? Overheated iron & other stuff very hot and probably spinning around, etc... how can electrons keep themselves organized ?
2) It is said that the Sun's core temperature is ~15.7×106 K, very hot, while the surface temperature is 5,778 K (hot) and the corona temperature ~5×106 K. If sun's temperature comes from its core, then how come that the surface is supposedly colder than the corona, if it is closer to the core than the corona ? So it seems that the core is very hot, the surface is hot, and the corona (farther away) is very hot too, which doesn't make much sense, unless there's another principle at work that I don't know of.
Thanks !
Daniel
I've got a few questions that I could not find answers to, so perhaps someone on this forum can help me out:
1) If a magnet loses it's magnetism when heated, and magnetism is caused when electrons are aligned in a specific way, how come the Earth's magnetic field is possible, supposing it would be hard to have any coherent electron state in such environment ? Overheated iron & other stuff very hot and probably spinning around, etc... how can electrons keep themselves organized ?
2) It is said that the Sun's core temperature is ~15.7×106 K, very hot, while the surface temperature is 5,778 K (hot) and the corona temperature ~5×106 K. If sun's temperature comes from its core, then how come that the surface is supposedly colder than the corona, if it is closer to the core than the corona ? So it seems that the core is very hot, the surface is hot, and the corona (farther away) is very hot too, which doesn't make much sense, unless there's another principle at work that I don't know of.
Thanks !
Daniel