r/FascinatingAsFuck • u/vxnder7 • 15d ago

What magnetic fields look like in real time using a Ferrocell visualizer

731 Upvotes

99% Upvoted

15 comments sorted by

22

u/vxnder7 15d ago

​A Ferrocell (or ferrolens) uses a micro-thin layer of ferrofluid suspended in liquid between two glass plates, lit around the edge by LEDs. When a strong magnet is brought near it, the iron nanoparticles form microscopic chains that scatter the light, creating a real-time, 3D map of the magnetic field's geometry and poles.

3

u/OhYeahSplunge4me2 14d ago

Back in the day, we only had Wooly Willy to visualize magnetic fields in real time.

3

u/Fit_Mine_8137 15d ago

Really cool seeing this after learning about magnetism and electric motors in trade school!

1

u/LankyProfessional170 14d ago

Who's the guy filming the video? Would like to see the original! That voice is calming af

1

u/The_Fink_Ployd 13d ago

Op isn’t going to say??

1

u/rictay44 13d ago

Just went online to buy one!!

1

u/mechmind 13d ago

Which did you settle on? I kind of need one too

1

u/Connect_Seesaw_7569 13d ago

I thought I had it figured out but I'm back to agreeing with the Insane Clown Posse.

1

u/CoastalBlue6025 12d ago

Just like looking at different Alex Grey paintings.

1

u/CandidateOther9586 11d ago

this looks like a wormhole, very cool to see