Iron infused putty swallows magnet.... SCIENCE!!!!!

Buster H

Wackbag Staff
Dec 6, 2004
Lower Bucks Co, PA
It almost looks like it's alive.

Published on Mar 25, 2013
Magnetic putty time lapse as it absorbs a rare-earth magnet. Taken over 1.5 hours at 3fps, played back at 24fps. The magnetic putty will eventually arrange itself so that the outer surface is as evenly distributed around the magnet as possible.

Ferromagnetic particles in the putty are strongly attracted to the magnet and very slowly engulf the surface of the magnet. The magnet shown in the picture is a strong neodymium iron boron magnet. It's a very powerful magnet for its size and could erase magnetic stripes found in credit cards and damage electronics!

The putty looks and feels like regular silly putty, but the difference lies in the fact that it has been infused with millions of micron-sized ferrous particles (most often iron oxide powder). The magnetic putty is not actually magnetic by itself, since the infused particles are made of iron powder.

The presence of the strong neodymium iron boron magnet (the silver cube in the video) magnetizes the ferromagnetic particles in the putty. When this happens, the ferrous particles align with each other and this alignment generates north and south magnetic poles, making the putty into a temporary magnet. Once magnetized, the putty will remain magnetized even after the rare-earth magnet has been removed from the putty. This effect persists for a few hours until thermal agitation shakes the particles and they lose their alignment.

Song is Blue Circles by unreal_dm licensed under Creative Commons Attribution

Here is a picture of what the putty looked like after a long time had elapsed


Rash Rendering

Registered User
Feb 9, 2010
They played with it on ron n fez. It sounded amazzzzzzzzzzzzz

Atomic Fireball

Well-Known Member
Jul 26, 2005
If you've ever thought about how cellular processes such as white blood cells devouring foriegn bodies seem to exhibit purpose and intelligence - this kind of shows you that the proper physical conditions can make anything happen...


Sep 15, 2004
Reminds me of a great big fat person devouring a block of government cheese in nanoseconds.