Live data from Hacker News

Ferrolic

ferrolic.com

31–40 of 72 posts

Re: Ferrolic

#31

Does anybody know where I can find other music similar to that of the video?

Aphex Twin: Avril 14th https://www.youtube.com/watch?v=PeLuQ6X2ixI

Boards of Canada: Dayvan Cowboy https://www.youtube.com/watch?v=A2zKARkpDW4

Solar Fields: Reborn https://www.youtube.com/watch?v=TD2bLKIDaT0

Brian Eno: Music for Airports https://www.youtube.com/watch?v=5KGMo9yOaSU

And so forth, I have something of an incomplete playlist of similar 'ambient' http://audiosplitter.fm/playlists/ambient/2289864

Re: Ferrolic

#35
post #15

Earlier quoted context omitted.

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.

Could you confirm or deny that you are using the word "nanoparticles" carefully?

I think that the ferrous particles in ferrofluids are mere particles. They'd have to be very, very small to be classified as nano, and we've seen before that making particles of an ordinary material that small can change its properties, ala "transparent titanium dioxide".

Re: Ferrolic

#36
At first I thought 'this is so cool' , but then after thinking about it for a while, I realised that it's no cooler than any of the 200 videos or pictures with 'cool stuff' that I see every day.

I think it's a pretty useless expensive gimmick created out of toxic materials to excite the numb neurons of the bored inhabitants of the digital realm for 2 minutes or so. Then we'll all forget about it and move on to the next thing. I'm already looking for something else :).

Re: Ferrolic

#37

Earlier quoted context omitted.

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.

Could you confirm or deny that you are using the word "nanoparticles" carefully? I think that the ferrous particles in ferrofluids are mere particles. They'd have to be very, very small to be classified as nano, and we've seen before that making particles of an ordinary material that small can change its properties, ala "transparent titanium dioxide".

"Ferrofluids are composed of nanoscale particles (diameter usually 10 nanometers or less) of magnetite, hematite or some other compound containing iron." - Wikipedia

Re: Ferrolic

#38

At first I thought 'this is so cool' , but then after thinking about it for a while, I realised that it's no cooler than any of the 200 videos or pictures with 'cool stuff' that I see every day. I think it's a pretty useless expensive gimmick created out of toxic materials to excite the numb neurons of the bored inhabitants of the digital realm for 2 minutes or so. Then we'll all forget about it and move on to the ne…

That's certainly an elaborate way of calling it art.

Re: Ferrolic

#39

This is very beautiful. The clock is probably the "killer app" for this. It would also keep the cats amused; like watching a fishtank for them.

why would cats find it more amusing than watching the fish tank screensaver?
Post reply on HN