Sculpting in Solid Mercury, with Liquid Nitrogen

Boing Boing Video teams up with PopSci and Theo Gray (MAD SCIENCE author) for an eerily beautiful science experiment -- how to cast solid, if fleeting, shapes from normally liquid mercury -- just keep it at 320 degrees below zero, with liquid nitrogen. - boingboingvideo on YouTube
alizarinsays...

>> ^Xax:
Out of curiosity, why would it be expensive to clean up a small mercury spill?


If you could get it all back in the bottle without leaving traces anywhere it would cost nothing.

If *YOU* had to clean it up and there was residue on things (carpet, cloth? no idea) then YOU would have to pay nothing because you'd throw it in the trash and nobody would know. (you bastard!)

BUT since they're a company that can get sued into oblivion by employees, EPA, etc they have to follow hazmat procedures which involve disposing in certain ways, avoiding fumes, etc - that's my guess anyways. You can't legally put that stuff in the trash and you can't have employees risk touching it or having a trace of residue in the lab where they could later be exposed.

Seems kinda nutty since everybody I knew as a kid played with mercury from broken thermometers. BUT it is scary when you go to the northwest and say you can't eat more than a certain amount of salmon because there's too much mercury in them.... I guess we have to do something about it all adding up.

ReverendTedsays...

>> ^alizarin:
If YOU had to clean it up and there was residue on things (carpet, cloth? no idea) then YOU would have to pay nothing because you'd throw it in the trash and nobody would know. (you bastard!)
BUT since they're a company that can get sued into oblivion by employees, EPA, etc they have to follow hazmat procedures which involve disposing in certain ways, avoiding fumes, etc - that's my guess anyways.

That's the same reason why an individual (in some states) can legally toss fluorescent light bulbs into residential trash, while businesses are required to follow hazardous materials disposal regulations for the same bulbs. However, even if it's not required, all areas recommend HHW (household hazardous waste) be disposed of at a facility dedicated to management of those types of waste.

EndAllsays...

>> ^Winstonfield_Pennypacker:
I've always wondered what it would be like to be in an environment where you could fire a Mercury bullet. Since the stuff is denser than lead, it should make a fantastic projectile if you can get around the temperature issues.


I hear Mercury bullets are the only way to kill aliens.

Doc_Msays...

>> ^Winstonfield_Pennypacker:
I've always wondered what it would be like to be in an environment where you could fire a Mercury bullet. Since the stuff is denser than lead, it should make a fantastic projectile if you can get around the temperature issues.


It'd immediately melt from friction as soon as you fired. It would however make an interesting, and rather destructive, splash when it hit something.


Also, I've seen mercury spills in the lab... back when we used mercury thermometers... big ones. The cleanup took about 10 minutes and probably about $50 worth of a product made to clean it up... plus whatever it cost to send it off to hazardous waste disposal people (not much). You basically sprinkle this stuff on the mercury and it sort of absorbs it like a paper towel on water. Then you sweep it up and there ya go.

phelixiansays...

What I don't get about mercury is when it touches gold gold sucks it up like a sponge. very bizarre. You'd think there wouldn't be any more space in the metal but somehow it takes more metal into the same space.

obscenesimiansays...

Why does the ubernerd keep referring to this as an "experiment". It is clearly not an experiment. Unless of course his mom views this video and then he tapes the beating she gives him for screwing with her cornbread molds, testing his hypothesis that said beating will involve other baking utensils, such as a rolling pin.

flechettesays...

>> ^phelixian:
What I don't get about mercury is when it touches gold gold sucks it up like a sponge. very bizarre. You'd think there wouldn't be any more space in the metal but somehow it takes more metal into the same space.


THAT is something I'd like to see.

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