This is basically just making your own smart mass:

http://www.thinkgeek.com/geektoys/cubegoodies/5ac8/

Does anyone else have a pet peeve about the phrase “defy gravity”? It really grinds my gears.

Nah, you can defy gravity all you want, but no matter your attitude, it’s still gonna drag you down.

Silly putty has to be slightly less messy than ferrofluid.

Once devoured, how do you recover magnet? Say after one night?

@JJ Possible, ferrofluid is basically iron nanoparticles (IIRC 300-1500nm) in an oleic acid binder.
They make it under specific conditions so that it doesen’t degrade when exposed to air.

You can even use ferrofluid or a close analog to it as a seal for a vacuum pump.
The magnetic field holds it in place and stays sealed over time despite the pressure difference.

I’d also try the ebay iron powder (300um mesh) as this is pretty fine and ought to work in much the same way.. failed magnetic solder experiment.

Silly Putty, they ought to call is Awsome Putty!

Does anyone else have a pet peeve about people telling other people their pet peeves? No? Just me? Thought so…

Oh No!!!! Attack of the Killer Black Olive!!!! Run for your lives!!!!!!

Wait… When did Silly Putty stop being fun? Why wasn’t I told?

@brad

No, but it did remind me of the black blob that engulfed Tasha Yar.

@raidscsi You can actually grind gears in a transmission. You see they actually used to make transmissions that you had to shift manually, now I don’t mean from park to drive I mean from first to second and so on and so fourth while your driving down the road and there was this third pedal all the way on the left that you had to step on to disengage the engine from the transmission before switching gears it’s called the clutch. So as it turns out if you have a car with a standard transmission its easy to grind your gears all you have to do is let off the clutch with the gear partially engaged and you get to hear the most painful noise you will ever hear your transmission make.

anyone besides me thinking of T2?

I like the idea of silly putty thermite, wonder if it’ll work.

@matt. lulz. i was waiting for it.

this video seems sped up. i wondwer how the material could be made to move faster. it looks like it is already saturated. furthermore has anyone seen magnetized particles suspended in a solution like this?

anyone remember gak from the 90s?
they had all kinda
glow in the dark gak
a whole rainbow of colors
gak with styrofoam balls
and yes, even magnetic gak
i found the little container of it years later, it became a black paste that could stain ANYTHING

btw, people, dont forget my “dirt cheap ferrofluid”
just add some printer toner(the magnetic type) and see what happens :D

‘ferric iron oxide’ – seriously, HaD?
ferric means iron-containing or iron(III).
Iron(III) oxide, also known as ferric oxide, is probably what you were aiming for.
Same stuff you use in thermite.

–Nathan