What is the magnetic field?

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dcolarusso

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The Tabletop Explainer is an intermittent educational vlog presenting answers to viewer questions, brief science lessons, and ideas for teachers and students. It is a feature of my blog "Tilts at Windmils" which can be found at http://www.davidcolarusso.com/blog/

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The answer is the ... ( 8 months ago by dcolarusso)

The answer is the charged particles in an atom, and all objects do have magnetic properties. It's just that not all objects have ferromagnetic properties. For example, try Googling "diamagnetism."

Thanks for the ... ( 8 months ago by DingoRunner)

Thanks for the response. What properties do magnets' atoms have? I mean, what is different in the atoms of a magnet that gives them ferromagnetic properties.

Given the word ... ( 8 months ago by dcolarusso)

Given the word limit here, it's probably best just to direct you to Google again. Basically it has to do with "magnetic domains."

I would like to ... ( 8 months ago by dumalucky)

I would like to know what relationship a magnet has with the earths magnetic field? Also is it true that magnets will loose power faster if in an 'empty' space away from a planets magnetic field. And if so why? thanks

How can I have ... ( 7 months ago by joe187yo)

How can I have powers like Magneto?

Eat a cup of Iron ... ( 7 months ago by mrmrmanhuman)

Eat a cup of Iron filings daily

Thanks ( 7 months ago by joe187yo)

Thanks

Are there a limited ... ( 4 months ago by SirGalahadXs)

Are there a limited number of field lines :o?

nope, I don't think ... ( 4 months ago by IMetalHeadI)

nope, I don't think so!

no, the lines just ... ( 4 months ago by phamnguyenquang)

no, the lines just represents how the magnectic field go.... it is unlimited (if u talk about the lines)

first question: it ... ( 4 months ago by phamnguyenquang)

first question: it is unlimited Second question : Yes (u cannot draw 1 magnetic line or else ppl will not understand) Third Question: No, it is just the represence of scientists for their explaination about the field

this is soo boring ( 4 months ago by Alex12629)

this is soo boring

I can explain ... ( 4 months ago by Etimespace)

I can explain magnetism
later i am gona make a magnetism video No you can check it out No gravity video Idea from Kuopio i told how visible universe really MOVES Peace and Love

WHY ARE YOU ... ( 3 months ago by grantgeebs)

WHY ARE YOU WATCHING THEN!!!!

In the video it ... ( 3 months ago by saq05)

In the video it said magnetic field lines start at north and end at south. ACTUALLY unlike electric field lines, magnetic field lines DO NOT "start" or "end" anywhere. you can imagine them like continuous closed loop that has no point to begin and end.

n the video it said ... ( 3 months ago by saq05)

n the video it said "magnetic field lines start at a north pole and end at a south pole"--Actually unlike electric field lines which terminate at an electric charge, magnetic field lines DO NOT "start" or "end" anywhere. Rather you can imagine magnetic field lines as a continuous closed loop.

ok, but you stated ... ( 3 months ago by undokat)

ok, but you stated the question 'what is the magnetic field?' it's not just lines on a paper, leading from N to S. what is behind the phenomenon? i was realy curious what you were going to show, when i saw the title you put on your video.

I could be wrong, ... ( 3 months ago by GSpotter63)

I could be wrong, but magnetic field lines sure look a lot like standing wave patterns to me. When these waves pass through matter with the appropriate arrangement of atoms then they are either pushed together or pushed apart. If this is correct, then perhaps one could reproduce these standing waves (a magnetic field) using simple wave modulation (I.E. radio waves) instead of coils of wire to force the atoms to spin together.

thanks for showing ... ( 3 months ago by variablestatus)

thanks for showing basic magnetic forces, 5'*s and keep up the good work on teaching...

great so can i ... ( 3 months ago by TheStoicAgnostic)

great so can i make a gigantic magnetic rink and have some reversed magnetic shoes and just start gliding around who wouldn't want to try that

awesome. thanks a ... ( 2 months ago by safebladgetme)

awesome. thanks a lot

Thanks! ( 2 months ago by pantadon)

Thanks!

dude. ofcourse you ... ( 1 month ago by cathy2708)

dude. ofcourse you can! the only problem is the amount of magnets you need. therefor people would make an electromagnetic rink

Think of the lines ... ( 1 month ago by dcolarusso)

Think of the lines like contour lines on a topographical map. There is no correct number of lines to draw. In fact, there are an infinite number of lines one could draw. What is important is that they communicate the proper relationship between one place and another. Where the magnetic field is stronger there are "more" lines. This is analogues to contour lines, where the mountain is steeper there are more lines. How many you have depends on the scale you choose.

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