Gallium (beating heart) - Periodic Table of Videos
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- Опубликовано: 14 мар 2009
- Our updated video about Gallium includes an experiment called "the beating heart" and news of a breakthrough in a our very own labs!
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Gallium is critically important now for solid-state lasers and LEDs that are all around us. There are other interesting things about it too, like how it aggressively dissolves aluminum, so much so that you have to ground ship gallium because it's not allowed on airplanes. We need another Gallium video...
mercury also does this
Apparently gallium is able to corrupt the great majority of metals (the only exceptions I know of are tantalum and tungsten).
Interesting.
If you wanted to make an anti tank or anti aircraft weapon, could you spray them with a liquid compound of gallium and mercury?
I am seriously asking.
4:27 In Loving Memory of Dr. Martin Poliakoff (apparently)
+Noel Goetowski HAHAHAA I thought the same thing. "In the arms of an angel" started playing in my head.
+Noel Goetowski The words of Dr. Martin Poliakoff echo in your head "Gallium I realize now, is named after france, it was discovered by a frenchman..."
Shrug *sigh* As they always have...
@@colinroberson9373 LOLOLOL!!! That kind of made my sides hurt!
Watching this after 2 years !!
Time flies so so fast !
I love how Neil is just standing there during the beating heart demonstration like, "Yeah, I've seen this a million times, just get on with it!" It is indeed quite a cool thing to witness. I remember in chemistry class doing a similar thing with mercury and nitric acid, though I know that's a bit less user friendly, heh. As always I love these videos!!
@punishedexistence "Less user-friendly" is a great way of putting that.
So after all these videos I’ve watched can I claim a few credit hours in chemistry from the university of Nottingham?
So the defining proof that a substance is a 'metal' is to 'bang' it on a hotplate ?!
Adam Carter vs it being silver colored wax I'm guessing
@@steelwarrior105 what
"When the Gallium is naked it makes everything wet"...
sexy chemistry
+Ben Hicks for shame sirrah!
+Ben Hicks o_o what?!
Also, "...squirt up on our faces."
Adriyaman Banerjee really 😒
3:47
"Wow, did you see that?"
"I did... what happened?"
I have never seen Gallium as a solid. In where I live, it is always a liquid.
put the gallium in a fridge
I'm from Texas nothing is solid
Know what you mean, keep my samples in the freezer... Here, the roads can change state between solid and liquid depending on the weather conditions.
Haha! Is your skin solid or liquid?
@@nicholaslee7476 you guys are known for your runny shits, indeed.
This is the best chemistry video ever from you professor and your colleages. I live in a poor country India and i wish to come and study chemistry at your university and learn for you and one day make new compounds that benifit man kind. please keep posting videos. I would also suggest you post some extra videos excluding elements for example a video on Sulphuric acid and some of the experiments with it. so that i can deepen my knowledge of chemistry. Thanks Brady. For making such a cool site.
Congratulations to Dr. Steve Little on making the compound having the Ga-Ur bond. How cool!
scientists, they have the best hair
Its 405060 degrees? DAMN HIS HANDS MUST BE HOT.
Galium melts at approximately 30 degrees centigrade or about 86 degrees plebeian.
I'm guessing from the use of the word plebeian that you're British, which means your lack of understand of sarcasm worries me even more.
30 degrees ignorant and 86 degrees Fahrenheit?
No. 86 degrees plebeian. Didn't you hear the other man?
natural carr
>tfw to intelligent
gallium nitride is used as a filament is some LED's
gallium's my favorate element and i have a sample to mess around with
terminate my fav element is tin course you can melt it, I also have a sample
Yeh tins fun to mess around with if you take the procortions, have you ever casted anything with tin?
I love this old bloke he is amazing
I can't stop watching these videos. Thanks guys (and girl in one video.) If it were up to me, I'd give you all 13-metal medals.
Congratulations on your new compound.
Great video -- keep it up!
According to Emsley's "Nature's Building Blocks", the discoverer of gallium also named it that because his name was "Le Coq", which means "the rooster" in French, and "Gallus" means "rooster" in Latin (and the Gallic Rooster is/was a longstanding symbol of France). So he kinda snuck his name into the periodic table, that clever bastard!
Isn't it a bit ironic? I love the irony in this video! From a stance of "eh, a boring metal" to "holy hell, I''m the first person to discover a new bond!" (Two different people, but at the same campus and helping the same production crue!) I absolutely love it!
See, now if you can go back and revise all those "boring" elements, you'll make something new :p.
I too am constantly checking on my subscriptions to se if an update has been published.
You really inspire me to do some sort of science at University in the future (im 15 nearly 16)
Nice work taking Chemistry to the masses.
Another great video, especially with the 'breaking news' on the new compound.
congrats on the Uranium Gallium compound. And awesome experiment.
nice video, you guys sure make chemistry interesting
Very nice video. I'm always waiting for you guys to release a new update. :-)
Cool experiment. Awesome that you guys discovered a new compound, you've got to be really proud :D
For this/next uear we have to do a project in school, and i chose a subject related to chemistry, yay! xD
is there a similarity between the sulfuric acid-gallium reaction and the "iodine clock"-reaction? because they both seem to have oscillating kinetics
very very nice video, I hope that they find that island of stability in the higher order elements soon, that will be a real excitement!
Congrats !! as usual great video..
You guys are awesome.
Really enjoy the video's Ty
love the video. keep it going
Pun 31
There must be a lot of people who don't have the gall(ium) to say they don't like this element. That's fine by me.
EnderStar501 I Ce what you did there
That pun was Ag-ion-izing
That's so normie of you
Why I like all these videos? Lol. The problem I cannot find a person to enjoy talking about them ...love chemistry
Then studie it you Idiot
Excellent dramatic zoom work around 0:46
Oooh, so it's not poisonous like mercury but it melts in almost as low temperatures? Sounds cool! I wonder if I could buy a sample... I have this fascination for liquid metals...
I'm considering performing this reaction (beating heart) at school, and I was wondering if it's possible to get the gallium back out of the reaction. If so, how? If someone could answer, that would be great!
Glad you shared....
wow, that really cooooool. and congrets on the new compound. do you no some of it's properties?
When I'm flat, I'll occasionally wet the surface too.
extremely awesome, best video yet by far....... can you guys do some more alkali metal-water explosions? or was it the alkaline-earth metals in water that did the explosions?
thank you for the new video :)
Really-really quite nice video :)
Once more I have learnt something. Thank you Pete and the Pacemaker ;¬)
Thank you!
If your heartbeat is like that, you might wanna see a cardiologist. :-)
God i love every single one of these videos... and nottinghamscience too
Yep. NurdRage also does this experiment as well, check out his video if you're interested. He is another chemist who also does a very good job in his videos, with thorough explanations.
Grats on the new compound =D
How long will this reaction continue?
Has the uranium-gallium compound found any commercial use? Also - great beating gallium heart.
Gallium and Indium alloy is fun to make. It’s a eutectic alloy, which means the alloy has a lower melting point than the constituent metals. You don’t have to heat the gallium and indium at all. You just push two solid chunks together and they turn to liquid where they touch!
Really useful, thanks:)
Gallium is used to stabilize the delta(if I remember correctly) allotrope of plutonium if no one has mentioned this yet.
Very knowledgeable videos
Congratualtion on the new compound. If I remember rightly, didn't Polly Arnold and Jason Love discover a novel uranium bond at Nottingham, just before moving to the University of Edinburgh? The chemistry of uranium is very exciting - I hope this new discovery gives chemical insights which shed light on the cleaning up of nuclear waste, an important part of building a post-oil economy.
Run man!....can't you see that Slugworth is there to take all your candy sciences from you!
So which came first? The new bond and now you need to find a use for it? Or, was there a need and you found a new bond to meet that need?
That experiment was pretty neat
I remember a lookalike experiment with mercury in stead of gallium. But you had to touch the mercury drop with an iron needle in order to make it beat. But when it started beating the frequency was a lot higher.
is the sound just part of the fx? and where can i buy gallium in bulk?
Which dichromate are they using?
@1jake312 I've seen something on that too, they warm the little bit that connects the cup part of the spoon to the handle then shake the spoon a lot.
Would a gallium filled balloon flatten out if dropped like the mercury balloon I saw? Could you use a funnel to fill the balloon with gallium as you can with mercury?
4:29 you should do this video effect on more experiments, it's better than cutting away to a different shot completely
The heartbeat type noise is an added sound effect right?
Also, is it safe to handle gallium without gloves?
+Naomi Nekomimi It's safe to handle without gloves, don't listen to the other ignorant guy.
GaN is an optically clear semiconductor that is immensely important in LED production for home lighting. HUGE application.
Congratulations on your discovery. What will Steve call his new compound? How must it feel to own the first human eyes to have seen this compound, new to art and nature? I wonder what applications there might be for such a thing? And if they must be shrouded in secrecy?
will the gallium eventually dissolve in the acid if you leave it alone for long enough without adding the dichromate?
Why would someone dislike?! This is cool!
How do you get the adding and removal of sulfate to "take turns" in that beating heart-experiment? Do you have to add acid and chromate manually to make the gallium lump "beat" and relax? In the video, it looks as if the lump does it all on it's own...
If you put a bead of gallium on top of an aluminium pop can, it will turn its structure of the ca into tissue paper. Please explain.
How much should the Sulfuric Acid be diluted?
Will Ammonium dichromate work?
please respond! I want to do this, but i'm buying the dichromate soon. I think that since he said " Dichromate " instead of " Potassium dichromate " or Ammonium dichromate" any dichromate will work, but let me know!
I was right! Any will work. The acid should be diluted by 2p water to 1p acid I think. 5ml H2SO4 and 7 1/2 ml H2O is what I use.
Can the volume of the beating be heard at this volume or did the audio have to be edited for the video?
In which Journal are you guys going to publish (if you haven't already) this new Ga-U compound? I'm in a totally different field of chemistry but now you tickled my curiosity :)
I don't get if the sound has been added or comes from the experiment...
Absolutely incredible research! Do you think this new compound can help a human heart beat to save somebodies life?
You see, I live in India, and I have a friend of mine in the Rare metal export business, so it was sort of a souvenir when visiting his factory. :)
Is the beating sound genuine? Is it really that loud or is it just added to the video?
Trajan Augustus no it’s not
@bluedeoxys Gallium is found in trace amounts in the ores of aluminium and zink (bauxite and sphalerite respectively) and so it comes as a by-product from producing these metals. It's more common in bauxite than sphalerite.
fantastic
any idea on how to make this stuff at home?
I studies Optics at Uni, Gallium is super important for Optoelectronics. GaP, GaAs based solar cells are several times more efficient than solar cells (though a lot more expensive). Similarly it is used for optical detectors etc
Steve is mvp of periodic videos
From where i can buy some?
is the sound in the video actually the sound produced by the change in surface tension, or is that added in?
Could you use Potassium Permanganate instead of Dichromate as an oxidant?
@natemcgraw the redness is dependent on temperature, not on melting point. Steel will glow red hot at around 900°C and so will any metal if it's still solid or liquid at that temperature. Gallium melts at around 30°C so even though it's liquid it's not red hot.
"A nice proud ball" lol he thought the ball looked proud. I like that. It makes me imagine that's what cute little gallium blobs do when they're proud about their sulfuric acid bath.
does the point at which metals become red hot (glowing red from heat) stay the same for all metals? the reason i ask is that some metals will become red hot without melting and the gallium turned liquid in his hand and stayed silver.
When diluting acids or bases you should always add the material with less volume to the material with the larger volume to reduce splashing and absorb exothermic energy.
Was the beating noise added during the experiment?
does it make that noise, or is that added?
so is gallium also woods metal? or is it different?
1:16 Gallium is an interesting element that leads to Half metallicity when doped in the conducting Chromium phosphide ; behaving as a Semiconductor in one spin channel, and a conductor in other spin channel. Though only by theoretical approach the results were obtained, experimental approach is yet to be taken...
Besides the obvious reason (because we can), what purpose does making the Uranium/Gallium compound have?
Was this a matter of "what can I get to bond with gallium?" or a matter of "A gallium/uranium bond would make a useful compound for x purpose, let's see if we can make it."?
ya congratz you guys! keep it up
@outrageousxolii There's still Sulphuric Acid reacting with it after it flattens, so more sulphate's formed adn makes it tense up again.
Galinstan, a eutectic alloy of gallium, indium and tin, is used as a substitute for mercury in fever thermometers, an application patented by Geratherm AG. The only problem is that gallium very readily wets glass, so the inside of the glass has to be coated with an extremely thin coating of gallium.
Does it work with vinegar?(I don't have sulfuric acid.)
You're not going to make gallium sulphide without sulphur, so no.
@Guy (6:24) Thank you to explane my why im studied chemistry ,)
3:28 Quick personal reference note.
20 - 68. 30 - 86
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