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LIQUID SCULPTURES with FERROFLUID
SPIKED WITH MAGNETIC NANOPARTICLES

(Image: Linden Gledhill/Cognisys - on Flickr)

Ferrofluids are colloidal mixtures - magnetic nanoparticles suspended evenly throughout a carrier liquid.

When placed in a magnetic field, the suspended particles cause the entire fluid to become strongly magnetized. In these images a small drop of ferrofluid is placed within a magnetic field created by a neodymium iron-boron rare-earth magnet.

The peaks and troughs result as the magnet tries to pull the liquid along its field lines.

Text based on a story in New Scientist 8 November 2010

Images from Linden and Shirlie Gledhill’s Flickr pages - check out Linden’s other great macro photography.