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Ferrolic

ferrolic.com

11–20 of 72 posts

Re: Ferrolic

#11

Cool! The designer ( http://zelfkoelman.com/ ) is Dutch, and the name is actually a pun in Dutch. The word 'Ferrolic' is pronounced almost the same as the Dutch word 'vrolijk', which means 'happy' or 'joyful'.

His name "Zelf Koelman" in dutch literally means "You're cool yourself" which I find hilarious.

Re: Ferrolic

#12
How are they creating a magnetic field that writes out the time? Is it a large grid of magnets or something more clever?

Re: Ferrolic

#13
post #12

How are they creating a magnetic field that writes out the time? Is it a large grid of magnets or something more clever?

The second tab: 'Where digital meets Nature' has a brief summary of how it works. Sounds like a grid of magnets:

"In the front, the display has a basin comparable to an acquarium in which Ferro Fluid can move freely. Behind the scenes powerful electromagnets enable Ferollic to influence the fluid’s shape, to pick it up and move it around. Both modules, the basin and the electronics, sit secure in an aluminium frame."

Re: Ferrolic

#14
This is brilliant .. a wonderful piece of artwork and technological whimsy in a way that playfully pushes the edge of display as an art-laden tool, and of course makes me wonder the difficulties of emulating it in software, so that everyone can have one and so that the ferro-fluid part isn't necessary (runs out of magnet-juice, requires containment, is icky in real life, etc.)

Re: Ferrolic

#15
post #2

It reminds me of the game World of Goo - those uncanny black blobs floating around. As the site says, the device can only withstand a few months of sustained use - which is a pity.

I wonder why that is. Given that the container is sealed properly, and they use electronics with magnets, I just don't see any part that is subject to such massive wear.

EDIT: Thanks, jpatokal, that cleared things up.

Re: Ferrolic

#16
post #15
post #2

It reminds me of the game World of Goo - those uncanny black blobs floating around. As the site says, the device can only withstand a few months of sustained use - which is a pity.

I wonder why that is. Given that the container is sealed properly, and they use electronics with magnets, I just don't see any part that is subject to such massive wear. EDIT: Thanks, jpatokal, that cleared things up.

Ferrofluids are fundamentally unstable. They're colloidal suspensions that rely on surfactants to keep the particles apart, and as the surfactants degrade, the particles start clumping together and falling out of suspension.

https://en.wikipedia.org/wiki/Ferrofluid#Description

As a practical demonstration of this, there's an ancient ferrofluid exhibit (80's?) at a local science museum. While the fluid itself kinda-sorta "works" in that you get the pretty spiky shapes when zapped with an electromagnet, the edges and bottom of the glass case are thickly coated in viscous black gunk.

Re: Ferrolic

#17
post #4

Seeing this, I just can't stop thinking of why they choose to create an entertaining device and if this fluid has any practical applications.

Because that's been done and there are plenty -- your hard drive probably contains some!

https://en.wikipedia.org/wiki/Ferrofluid#Applications

Re: Ferrolic

#18
post #15
post #2

It reminds me of the game World of Goo - those uncanny black blobs floating around. As the site says, the device can only withstand a few months of sustained use - which is a pity.

I wonder why that is. Given that the container is sealed properly, and they use electronics with magnets, I just don't see any part that is subject to such massive wear. EDIT: Thanks, jpatokal, that cleared things up.

Ferrofluids are magnetic nanoparticles, usually iron oxide, with small molecules called surfactants stuck to their surface. These stop the nanoparticles aggregating. Eventually the surfactants themselves will come off, causing aggregation. Lumps of iron oxide precipitate out of the liquid and sink to the bottom. No doubt better surfactants will be developed that take a very long time to degrade.
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