NASA | Magnetometry 101

[dudekool12]

is he iron man?

[adansagu]

These are awesome presentations given much thought and easy to understand. Three cheers for NASA grat !!!

[TeenageIronman]

is this a real hologram?

[RovaRusty]

@TeenageIronman no

[TeenageIronman]

@RovaRusty thats what i tought

[darkembassymusic]

@goodintensions Its not a holographic computer, its computer effects (think FX used in the film: Minority Report). However you may be interested to learn that holographic technology has had a breakthrough only a few weeks ago. Look for a scientist named " Nasser Peyghambarian " on google :)

[Pemon66]

www2.nict.go.jp/y/y223/simulat­ion/realtime/index.html

[djsuperstar717]

wow,

sounds like Mars is frozen to the core

[bra13vo]

Awesome..

I'm so intrigued by these astronomy stuff, but it's just too much to get there

[tulsaguy1974]

This is why I Love NASA. Awesome video! I'm curious though, if magnetometry is why we know that the poles are switching (or due to switch)? Also, does other planets have a switching of their poles too?

[moonasha]

@tulsaguy1974 we know our poles switch by looking at rock layers of our earth. As for other planets I'm not sure. The sun's magnetic poles switch every 11 years though.

[skybirdnomad]

@tulsaguy1974 Yeah, molten rock will magnetize in the direction of the field around it, but when it becomes solid the magnetic field around it won't affect its magnetic direction. So yeah, deeper layers = older rocks = way back when magnetic pole was different

[LebaneseNostalgia]

local magnetic field o mars would love to learn more about them!

[Drhlony]

@LebaneseNostalgia

yes , I really found that bit interesting

[jespley]

@LebaneseNostalgia For a brief animation about the history of magnetic fields at Mars see: mgs-mager.gsfc.nasa.gov/animat­ion/mars_impact.html

[cidvisions]

Do we know the source of the localized fields on Mars?

[watermelonpizza]

Wow that was cool!, i could so see this working with kinect in the future... somehow

[MsWanderer1]

And what is a magnetic field made of? ;-P

[princeofexcess]

@MsWanderer1 electro magnetic bullshit stuff

[julsHz]

@MsWanderer1 Magnetic fields are a *force* produced by moving electric charges. Since we can't see them, we describe them mathematically with vector fields-- any point in space with a direction and magnitude (strength), like the field lines you see in the vid around the magnet. Physicists have given us some very successful rules for determining how they act under specific circumstances. Maxwell's set of equations for one, that describe the relationship between electric and magnetic fields.

[MsWanderer1]

@julsHz

It's nice that you can regurgitate the physics text book but the question was "What is a magnetic field made of?"

If you are going to call it a force then you must explain how the moving charge produces it. Can you do that?

Don't worry; science is not about knowing the absolute details; it is about our ability to measure and quantify a phenomena. To know the details will require a new paradigm that can reduce the abstract terms to absolute axiomatic terms.

[julsHz]

@MsWanderer1 They're not *made of* anything. That's the wrong question. They are made *by* moving charges. And we can measure and quantify the details. That's what a mathematical construct is, and it's based on experimental results. 500 characters isn't enough to explain dipole moments and quantum spin. It's nice you want to philosophize about 'absolute axiomatic terms', but physics doesn't DO math, physics USES math. Go get a degree like me if you want to solve the mysteries in your head.

[MsWanderer1]

@julsHz

I've been using the math for over 50 years Julie. If you work in a science occupation then you've probably used instrumentation that I've designed.

It appears you got your degree by learning methodology; you sure didn't learn how to think now did you? The fact that you did not even give me a text book answer to my question makes me assume your degree is in the liberal arts.

You seem to be just another ignorant troll Julie!

[julsHz]

@MsWanderer1 And you seem to be a cranky old bitch, but things aren't always what they seem, are they. I'm Sorry I couldn't answer your question to your satisfaction, but I have a feeling you wouldn't be satisfied with any answer.

"you've probably used instrumentation that I've designed." Then why the dumb question? And who calls it 'the math'? "nice that you can regurgitate the physics text book", "did not even give me a text book answer"-- Which is it? Nobody here really cares, dear.

[Neodudeman]

This is sooo pretty!

[Xigmatek]

Wow! And all that just Blooped into place over 500 Googlnilion Years!!!!

[cidvisions]

@Xigmatek No it conformed to a very simple set of forces. Gravity, electromagnetism, the weak and the strong nuclear forces.

[Xigmatek]

@cidvisions

Wow! 

[XxsomethingxX]

Amazing presentation!

[nwstraith]

These are awesome presentations given much thought and easy to understand. Three cheers for NASA

[deepsmeen]

i know that !!!

[joh04667]

i did not know that aboot mars!!

[tostrong4you]

Interesting stuff, the presentation was great too

[DamienZshadow]

@tostrong4you Hell yea, with all its augmented computer projections lol I love it!

[MoreYummy]

Is the touching stuff in the video using magnetic field also?

[muzammilali007]

Is this compass based on Hall Effect Sensor??

[MrConundrum2020]

the magnetic lines look like magnetism is based on linear string theory

[TrueHamal]

I liked this video a lot.

[akierrs2]

awesome vid as asual!