Do all planets have magnetic fields?

[inquisitive]

Do all planets have magnetic fields? Is it a spin thing?

[Molotov]

No. It depends on the composition of the planet. Earth's magnetic field is generated by its solid metallic inner core rotating in the outer liquid core.

 

I have no idea how magnetic fields are generated in stars and gas giants but i'm guessing its a similar process.

[Gant]

Molotov is correct,,Stars on the other hand have what is called solar loops,,pretty complicated to explain,,but the suns magnetic field is actually in its sunspots. Check out this site for more info. Its quite informative.

 

http://www.sunblock99.org.uk/sb99/people/LFletcher/sb99_lop.html

[5614]

Do all planets have magnetic fields? Is it a spin thing[/b']?

the angular momentum or quantum spin of an atom can cause a magnetic field.... that is not the same as something physically spinning!

[ed84c]

electrons have 2 spin anyway.

[YT2095]

Do all planets have magnetic fields?

 

No, they all have Gravity though (as do Moons).

 

the magnetism comes from the composition of the bodies mass, spin only helps with alignment of magnetic domains in a liquid core, other than that, it`s either fixed or non-existant

[swansont]

electrons have 2 spin anyway.

 

spin 1/2

[swansont]

No' date=' they all have Gravity though (as do Moons).

 

the magnetism comes from the composition of the bodies mass, spin only helps with alignment of magnetic domains in a liquid core, other than that, it`s either fixed or non-existant [/quote']

 

The fields change in strength and direction, so it's not fixed.

[YT2095]

Hmmm... I read 2 as "to" in this new fangled crappy txt msg thingy, I agree, certain shortcuts in the field of science should NOT BE taken!

[YT2095]

The fields change in strength and direction, so it's not fixed.

 

you misunderstand me here.

 

my point is that if OTHER than a liquid core of the correct magnetic material.

the only other 2 options are a Solid core of the correct material and still magnetic (hence fixed) or a planet comprised of a material of a non magnetic property.

[calbiterol]

Mars is generally considered to be a magnetically dead planet, meaning its core is solid (cooled) and it has no magnetic field, correct? Is there any way to restart this process? Maybe a detonation in the core? Hypotetically...

 

 

Just wonderin'.

[YT2095]

No, not really.

 

it would take MASSIVE amounts of energy to make a "dent" in it, and by doing so, you`de create problems not yet encountered.

 

much better to use a GPS system and take your geo coords from that

[ed84c]

Hmmm... I read 2 as "to" in this new fangled crappy txt msg thingy, I agree, certain shortcuts in the field of science should NOT BE taken!

 

ROFLOL

 

swansont; you said 1/2 spin? you know more of this than i do. What has 2 spin then?

 

For those who done know;

 

0 spin= Any agle is the same e.g. a circle

1/2 Spin- Same at 2 points e.g. playing card

1 spin- Same at only one point e.g. table

2 spin- Spins twice to be at the same poiint.

 

I think.

[5614]

spin 1/2

 

or -1/2

[YT2095]

ROFLOL................

 

I think.

 

Wahey Someone at last actualy understood something oblique!

 

I think?

[swansont]

or -1/2

 

Right. Spin 1/2 can have a projection of +1/2 or -1/2.