Funny story about Ferrofluid (that's what it is, right?). For a chemistry project last year, one group was running experiments on FerroFluid. One of them ended up getting injured by the Ferrofluid when one of them put it on one side of his hand and a magnet on the other. He's the only person I know to get stabbed by a liquid Sadly he did have to go to the hospital to get stiches, but I bet even the doctors thought it was funny.
I know, I know, I'm just saying. Actually, any liquid can injure you given enough momentum (large mass or large velocity).
True, but he specificially said "stabbed" - to get enough water to hurt you at realisticly high speeds (such as from a fire house) wouldn't cause a stab-like wound, more like a ran-into-a-tree wound (aka, a blunt wound - but I like my naming better, its more descriptive AND funnier )
There are only two kinds of programming languages: those people always bitch about and those nobody uses. (Bjarne Stroustrup)
It really was a stabbing. I didn't see it happen myself, but I heard a couple of accounts from different group members and saw the hand after it. You know the little fold of skin between your pinky finger (little one) and ring finger. Yea, there was a tear in that The magnet was a rare earth magnet (given to them by my chemistry teacher) which was very powerful. I think that had a major role in it.
Ahhh, ok. So the strength of the magnet and the high density of the ferrofluid caused it to act as a nearly solid object at fair speeds and therefore caused injury. Oh, and I looked up ferrofluid - its density is closer to that of iron than that of water.
You have to be careful around neodymium magnets. Some of them are powerful enough that you cannot have any metal in the same room as one of these things, or you risk being severely injured by flying objects.
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