May 9, 2012

10 Photos to Help You Visualize Magnetic Fields

bar magnet on a compass array

 

Yesterday, Redditor jokes_on_you posted a fascinating magnetic field visualization using compasses (see above). What’s interesting is that we can not only see the pattern of magnetic fields, but the direction of those patterns via the compass arrows.

As usual, the picture led to some interesting comments and updates from various Redditors trying to enhance, improve and critique the pic. The following is a summary along with some additional magnetic field visuals and an explanation courtesy of Wikipedia.

 

Attempts to make the magnetic field patters easier to see

 

visualizing magnetic fields magnet compasses brightened 10 Photos to Help You Visualize Magnetic Fields

 

 

visualizing magnetic fields magnet compasses red to make arrows clearer 10 Photos to Help You Visualize Magnetic Fields

 

 

Someone notices a glitch in the Matrix

 

glitch in the matrix 10 Photos to Help You Visualize Magnetic Fields

 

 

Mentions of iron filings to visualize fields sets the Sifter on a search…

 

visualizing magnetic fields with iron filings 3 10 Photos to Help You Visualize Magnetic Fields

Photograph by Dayna Mason on Flickr

 

 

visualizing magnetic fields with iron filings 2 10 Photos to Help You Visualize Magnetic Fields

Photograph by Tilly Mint on Flickr

 

 

visualizing magnetic fields with iron filings 4 10 Photos to Help You Visualize Magnetic Fields

 

 

visualizing magnetic fields with iron filings 1 10 Photos to Help You Visualize Magnetic Fields

 

 

magnetic fields with compass magnets and filings 10 Photos to Help You Visualize Magnetic Fields

 

 

Magnetic Fields

 

A magnetic field is a mathematical description of the magnetic influence of electric currents and magnetic materials. The magnetic field at any given point is specified by both a direction and a magnitude (or strength); as such it is a vector field. The magnetic field is most commonly defined in terms of the Lorentz force it exerts on moving electric charges. There are two separate but closely related fields to which the name ‘magnetic field’ can refer: a magnetic B field and a magnetic H field.

Magnetic fields are produced by moving electric charges and the intrinsic magnetic moments of elementary particles associated with a fundamental quantum property, their spin. In special relativity, electric and magnetic fields are two interrelated aspects of a single object, called the electromagnetic field tensor; the aspect of the electromagnetic field that is seen as a magnetic field is dependent on the reference frame of the observer.

In quantum physics, the electromagnetic field is quantized and electromagnetic interactions result from the exchange of photons. Magnetic fields have had many uses in ancient and modern society. The Earth produces its own magnetic field, which is important in navigation. Rotating magnetic fields are utilized in both electric motors and generators. Magnetic forces give information about the charge carriers in a material through the Hall effect. The interaction of magnetic fields in electric devices such as transformers is studied in the discipline of magnetic circuits. [Source]

 

 

And no discussion about magnets would be complete without an obligatory image of
the Insane Clown Posse [reference]

 

icp insane clown posse magnets how do they work 10 Photos to Help You Visualize Magnetic Fields

 

 

 

 

 

 

If you enjoyed this post, the Sifter highly recommends:

 

 

bananaphone 10 Photos to Help You Visualize Magnetic Fields

 

 

 

 

 

Comments