"It doesn't have a high density, but it does have a high weight." Me: What? What are you even saying? Me about six seconds later: Awww you're cheating.
Hi Cody! Love your videos, been watching since before you blew up! The "mercury dime" you use is called that after the image of the god Mercury. That was before the whole "separation of church and state" stuff. the metal composition of the dime is actually 90% silver, 10% copper. Take care Cody! Keep up the awesome videos!
Technically that is lady liberty. But people perceive it as the goddess mercury because of the winged cap. That’s why the actual name of the coin is the liberty dime. But people have nicknamed it the mercury dime.
Ferrofluid is some pretty cool stuff. Had no idea it could float osmium, though. That's pretty surprising. It makes me wonder if it can float uranium...
+Rich Marceau Of course it would sink without the magnetic field. +Sparky Depending on the strength of the magnet, it could make anything more buoyant than itself.
Uwot I meant to say a high weight but low density. The density of the fluid won't change but it will still be low relative to the density of the osmium. The only reason the osmium is floating is because the magnet is increasing the fluid's weight (but not it's density)
A cool idea, to pull the liquid down with a strong magnet instead of just gravity, while the more dense objects are being pulled down by gravity alone! The combined effects of gravity + magnetic attraction make the liquid effectively "heavier" than the objects, with this modified definition of "heaviness".
I think the steel table probably did the trick but idk if it can be magnetized like iron? Or can the ferrofluid be magnetized bc ik its just iron particles in the fluid Psa im not a scientist just curious so sorry if i sound dumb
here where i live in Oregon our city water is really heavy. i have been told that it has a lot of iron in it. it tastes alot like blood. and sometimes on really hot days it can actually smell similar to sewage.
I have been wondering this for a long time, but so far as I've been able to figure out, even the lightest liquid I know about (liquid hydrogen) is still denser than the densest gas I know about (uranium hexafluoride). I remember when I was in middle school, having misread an encyclopedia article about xenon, which has a density of 5 grams per liter at STP. Well, I misread it as 5 grams per cubic centimeter, and thought "Oh, wow, a gas heavier than water!" So I cracked open a xenon strobe tube under water, and was very disappointed when the gas bubble floated out and dispersed into the air.
Theboss24611 Tungsten hexafluoride is the heaviest gas at room temperature but there is no liquid that is lighter under the same conditions however a solid can float on it like aerogel or a paper boat!
Well, maybe yes, but you'll need to cheat nature. I've seen small boats of wood and paper floating on a fish-tank filled with Argon gas before, so I can imagine it is possible to use a buoyant vessel to contain the liquid, or maybe even making a vessel out of frozen liquid (AKA a solid, lol).
Mr.Inspector yes, and the reason the other metals kept floating is because when he drops them in there, there is fluid above them. but because that same fluid is under force from lets say a magnet under the table it pushes the other metals up to the surface.
Immediately I saw it pouring in I immediately thought "this has to be that metal liquid! God I can't remember it's name!" Turns out it's ferrofluid lol
"Heavy": Of great weight; difficult to lift or move. "Weight": The force exerted on the mass of a body by a gravitational field. By definition, if this a Ferromagnetic fluid, or properties of heaviness are created by magnetic fields, you have to subtract the reactive force of the magnetic field (and creator thereof) acting upon the material from the equation, since "heaviness" is proportional to mass and gravity, not magnetic force. Thus this is not the heaviest room temperature liquid, this is a liquid that has been artificially modified to have properties similar to heavy liquids. So in answer to your question: No, it could not be the heaviest room temperature liquid. But it is cool! You get a thumbs up!
I heard from a rumor that you can travel time if you invest money in this channel's patreon, could be just a hoax though. It's up to you to believe it.
i'm assuming its a liquid made with iron (google ferro fluid) which is placed over a magnet meaning that a force is pulling the liquid down but not the other metals. Basically means that if he put some iron in there, it would sink because of the magnet underneath, and then he'd have found the heaviest metal too. i call cheats that its the heaviest liquid lol.
Actually this is ferrufluid that sits on a magnet pointing upwards (so that the ferrofluid is repelled) thats why the surface looks weird and the Osmium ball is being held on the surface...
its ferrofluid which isnt as heavy as mercury but if you add a strong magnet, the force of the magnet+the own weight of the fluid is enough to beat any material
Hmm, the ferrofluid will only cause things to float like that when it is affected by a nearby magnet that pulls it down, right? So can you truly call it "heaviest liquid"? He needs assistance from an outer source so won't that be considered cheating?
I guess it goes down to how you'd prefer to define it. As buoyancy in definition cares about the "weight" of the displaced fluid (at least the popular simplified definition). Here lies the problem in definition. As in the real world, it's not just the weight that affects the upward force, it's any force that pulls the liquid surrounding the object down, and maybe even forces that push the fluid into the object exert upward force on the object, calculating the forces working on the object will ultimately decide if the object floats or not. So if you want to define your liquid as heavy because of its property to make dense objects float, then it's an heavy liquid. But if you think it can only be considered heavy if the weight is the only force in play (by buoyancy's popular definition) then this ferrofluid is out of the game. The more i think about it, the more i feel like i'm contradicting myself, I understand why you are having a hard time deciding if it's cheating or not.
Lol I'd not advise holding a magnet above it, as cleaning a magnet from this ferrofluid is almost impossible. And yea, the fluid becomes much lighter the higher you are on the pool of fluid, it would be really easy to sink in that situation.
By definition weight is a force, it's the force caused by gravitational atraction. A magnet doesn't cause the weight of an object to increase, it just produces a magnetic force in the same direction as the gravitational one in this case but that force cannot be called weight by definition.
This brings up some interesting thoughts - I saw a battlebot competition where weight is certainly taken into consideration. Some 'bots used magnets to add weight in the arena, making it far more difficult to flip them. Yet, this weight added by magnetic force was not considered when weighing the 'bots. (Basically a clever way to get around weight restrictions!) I still think your point is valid - weight is a result of (and dependent on) force. Mass is not. Density is determined by mass, not weight. As such, I think your claims stand, despite how "cheaty" the method seems. :-)
Extracted iron from cereal as one part my 7th grade science project. Easy enough to just extract it all with a stirring magnet (2 out of 3 cereals I found within 3% of the expected iron using this method).
Here's a quick laymanese explanation as to why the ferrofluid lets things float on it despite ostensibly being less dense Density = Mass / Volume. Typically we hear that things with lower density will float on top of things with higher density, and this is completely accurate in most circumstances. The reason for this is that things with a higher density are pulled down harder by gravity than something of a lower density with the same volume, so it is able to squeeze the lower density material out of the way. Weight = Mass * Acceleration. Weight isn't a measurement of how much stuff is in a spot, it's a measurement of how much force gravity is exerting on an object. For most intents and purposes, you can use weight like mass and vice versa, since as long as you stay on the same planet nothing will change. But if you add another source of acceleration to an object, such as a big magnet pulling down on the suspended iron particles, then its effective weight increases without changing the mass. Since the reason low density things float on top of higher density things is because of weight / volume, rather than mass / volume, the effective increase in weight provided by the magnetic field is more than enough to float the higher density metals that are not affected by the magnet.
BY these standards, you could call any magnetic material the heaviest material simply by applying a sufficient magnetic force to it - in which case you would have to take the reactive force of the magnet into account.
He did mention that it is heavy, not dense, therefore i believe that it IS in fact ferrofluid, bur with a huge magnet underneath, hence explaining the clues and repetition of "weight"
Ohhh. Right. Low mass, but high "weight" because of the strong magnet underneath pulling the stuff down. Clever. Afaik, ferrofluids are not liquids, but a suspension of ferromagnetic nanoparticles in an oil. So in my mind, this does not really qualify as a liquid.
Tere's a big diference between a suspencion and a solution, yes, only chemist like us care about that, but for industrial and experimental reasons you have to know the diference
Speaking of heavy liquids, do you know anything about aqueous sodium polytungstate? I've been looking for a transparent low viscosity liquid that won't kill you if you spill a bit of it and won't react with glass or silicon dioxide. Unfortunately, I'm seeing conflicting information about its safety.
just ferro fluid heavily attracted by a magnet which makes it hard for other metals to interfere with it since the water bonds are also very strong in this liquid no problems with osmium and mercury since they aren't very ferromagnetic
I'm guessing some sort of ferrofluid, from the look of the surface, and the strange tendencies to form a pattern. The "density" is low, but the "weight" is high, because it's highly attracted to a magnet underneath, forcing anything non magnetic out of the way
it looks like ferrofluid just based off the texture i was hoping he would put a magnet next to it so i could see but thats just my guess, I never new ferrofluid was heavy i just knew it can be a pain in the ass when you spill it
dorgodorato there's clearly some atmospheric lensing going on in this video which make the osmium appear to float when in fact it sunk to the bottom. Also the Coriolis effect is causing the pattern on the surface. Now we just need to Photoshop a car next to the mercury dime...
No. Think if u put a steal ball on it after a few years it would have sunk into the pitch as pitch is not more dense than steal. The only reason you wouldn't notice this steel sink right away is due to the extremely high viscosity.
I had seen this video when you first posted it, and had to come back to ask a question: is there a name for this effect? I mean, obviously it's magnetism, but floating a diamagnetic object ...
The texture attributed to ferrofluid is caused by a magnetic field influencing the liquid and the way it was poured is not like ferrofluid when not acted on by a magnetic field. So in conclusion it is ferrofluid, but besides from gravity, there is a magnet beneath the table which gives the illusion that it is heavier than it really is.
Here's my answer, though I may be wrong. This is more than likely ferrofluid, although using the magnet is cheating. Since ferrofluid consists of suspended Fe3O4, if it's not more dense than Osmium in its solid form, there is no way it gets denser than Osmium by suspending it in a fluid. If anything, it will make it *less* dense. I think by using a magnet the surface tension of the fluid keeps the Osmium from sinking into the fluid.
Don't know if you do this on purpose or not but it's the second time now. The video is unlisted, you will only get views from those who get the link. I found it through your post on facebook.
It’s ferrofluid that’s being pulled down by a strong magnet. Because it’s being pulled down, it pushes up on non-magnetic metals. On the other hand, putting a solid block of iron in the ferrofluid would sink, even though it’s not as dense as the osmium. The iron block would get pulled by the magnet, but because it’s more dense than ferrofluid, it would sink.
