Ferrofluids are cool. Glowsticks are cool. And what happens when you combine them is pretty neat, too.
Ferrofluid is a magnetic liquid, invented by a NASA engineer in the 1960s, that has, in recent years, become a popular medium among scientifically inclined artists. Ferroflow is an interactive desktop sculpture that makes it possible to play with ferrofluid—needless to say, we want it.
Ferrofluids — those mesmerizing drops of magnetic liquid — can perform a number of neat tricks under certain conditions. But what would happen if you placed a blob of the stuff on a hydrophobic surface? Watch these videos to find out.
It's likely that you've seen video of ferrofluids doing things like growing spines when exposed to magnets, or being built up into sculptures by artists using magnetic fields. But what if they're not just artistic triumphs? What if ferrofluids can act as models and let scientists learn about the multiverse?
Oh, ferrofluids, is there anything you can't do? Researchers led by MIT's Markus Zahn have devised a technique for separating oil from water. Using magnets. Tiny, tiny magnets that temporarily transform polluting oil into a magnetically manipulable ferrofluid.
Oil, watercolors and nanoscale iron particles make for some of the most psychedelic imagery this side of an LSD trip — and we've got the hi-res macro photographs to prove it.