> chemistry > métaux-alcalins > nak-mhd-fountain-periodic-videos-homage-advanced-tinkering

Building the most dangerous fountain in the world – Periodic Videos homage

Advanced Tinkering - 2022-07-23

A few years ago, I watched a video by periodic videos about the sodium potassium alloy called NaK. In this video I saw something I always wanted to recreate. A fountain that uses this liquid alloy instead of water. The pump is especially interesting because it uses no moving parts. It is a magnetohydrodynamic pump. 

If you want, you can join my patreon to help me working on my projects. I would really appreciate it! 
https://www.patreon.com/AdvancedTinkering

Music: 
"Midsommar" by Scott Buckley – released under CC-BY 4.0. www.scottbuckley.com.au
https://youtu.be/OtKgkuWL3ao

@AldoCortesi - 2022-07-24

Another amazing video. Regarding your question - I probably speak for everyone here when I say that we would like to see as much detail as possible on all the steps that go into achieving your amazing work. Personally, if this video was 2 hours long and 1 hour of that was loving closeups of the glass blowing, I would be completely on board with it. Well done, and keep going!

@AdvancedTinkering - 2022-07-24

Thank you! And thank you for supporting me on patreon! I appreciate it!
I am thinking about releasing a second video where I show the flameworking in detail. So people can decide if they are interested to see it.

@djspacecake - 2023-05-15

@@AdvancedTinkering actually that video drew me to your channel, amazing !!

@EliasExperiments - 2022-07-23

Very cool looking fountain! Knowing how dangerous NaK really is, makes this video quite scary to watch. XD

@whatisnuclear - 2023-12-05

Congrats, this is fantastic work! I really love the end scene with it working in full glory. Thanks so much. I'm a nuclear engineer, and we used pumps like this to force coolant around specialized reactors, especially back in the old days like at EBR-1 in Idaho, which also used NaK.

@Lindsays-tech - 2022-07-29

Fabulous! I wish I could 'like' this more than once!! I'd be interested in seeing more of the glassworking as you go along. Very, very, well done.

@poppyrider5541 - 2023-11-05

The forbidden fountain of youth. I certainly would stop you aging. Great work.

@sealpiercing8476 - 2022-07-23

It seems like you've got the tungsten rod sealing under control, but there's also the option of an induction pump using alternating magnetic fields, including the circle arc duct electromagnetic pump--a spinning magnet array next to a circular arc tube pushes along the fluid inside. Might be a good option later or not. See Sodium-NaK Engineering Handbook Volume 4 Section 1-3, either for an overview or just because all those books are a cool overview of the state of the art of 1970s NaK engineering.

@AdvancedTinkering - 2022-07-23

Thank you for the literature tip! I will definitely have a look!

@contomo5710 - 2022-07-23

while i agree that doing it inductively would certainly be more convenient, the high currents induced in the NaK would also mean a lot of heat produced.
i believe that is what is commonly used in big aluminum smelters to heat and stir the metal slurry

@sealpiercing8476 - 2022-07-23

@@contomo5710 No you're thinking of using higher frequency oscillating magnetic fields to produce heat. You know how if you drop a magnet down a piece of copper pipe it moves very slowly? Likewise if you move the magnet you can push on a conductive object. NaK is conductive so if you move the magnets along the tube it pushes the NaK. My description may not do it justice but real pumps for liquid metals exist, using that operating principle.

@contomo5710 - 2022-07-23

@@sealpiercing8476 yes I do know, which is because of the same reason, the magnetic field induces eddy currents, go to your shed try it out the copper tube will get hot after dropping it many times :P

@sealpiercing8476 - 2022-07-24

​@@contomo5710 Ok true but not a lot of pumping work is needed here so even if the pump is only 10% efficient (I think that is an achievable result for this style) the heat buildup will not be severe. I don't know for sure without actually doing the math.

@ericlotze7724 - 2023-03-02

13:45 I personally LOVE the Glasswork, but either way people could skip/scrub through it if they don’t enjoy it as some of us. An alternative would be posting a basic project video, and a very thorough/raw footage build video.

Either way, keep up the great work!

@AdvancedTinkering - 2023-03-02

Thank you!:)

@alexlabs4858 - 2023-02-02

Now this……. This is cool. And plenty dangerous. I like it.

@drhaese - 2022-07-24

And all the hard work finally turned out to be successful. You have created another unique tutorial. Many thanks.

@ericlotze7724 - 2023-03-02

Now i want a full Architectural Water Fountain Sized one!

Imagine going to a park, or transit station and seeing something like this shooting a dazzling display of metal !

Maybe if i ever make that (kids- ) science museum…

@AdvancedTinkering - 2023-03-02

That would definitely be one of those things I would spend my money on if I were a billionaire. Haha.
But I am actually planning on building a second version that's a bit larger and looks better.

@prapanthebachelorette6803 - 2023-09-29

@@AdvancedTinkering looking forward to that 😊

@SodiumInteresting - 2022-10-25

Beautiful NaK fountain

And yes more flameworking videos please, this is exactly the kind of thing I want to learn how to do. Most flameworking videos on YouTube aren't chemistry related

@nomcopterlabs - 2022-07-24

Amazing! You pulled it off! Love the making of and the showreel of the final product. What a jet. I'd definitely enjoy more of the flameworking and making of, perhaps you could use YouTube chapters or a separate making of video?

@AdvancedTinkering - 2022-07-24

Thank you! I wanted to add chapters to this video but I honestly forgot.
I may release a second video where I show the flameworking in detail.

@nomcopterlabs - 2022-07-24

@@AdvancedTinkering heh I bet - this video must've taken so much time to put together already. I think you can add them after just by editing the description?
I'll definitely watch that video if you make it! The craftsmanship is super interesting.

@johnputnam3826 - 2022-07-24

The glass working is really cool and not many people do it.

@AdvancedTinkering - 2022-07-24

Thank you, am am glad you liked it!

@robertlapointe4093 - 2022-07-25

Nicely done. A tip for creating glass tubing loops more easily: make it in two halves that can then be joined at two points simultaneously. I've made some Schlenk-ware and Klein bottles that way.

@CM-xr9oq - 2023-11-24

Does that require 2 torches?

@robertlapointe4093 - 2023-11-24

@@CM-xr9oq No, just alternate heating between the two locations (two pairs of open ends) to be joined. When both are hot enough to stick, make connection and then work the joins individually to get smooth seals. Requires a bit of dexterity and maybe a slightly hotter flame.

@mr.fredricklawngtawnghedav5094 - 2023-07-11

Mr. Your setup is freaking beautiful. Quite the craftsman.

@4560123678 - 2022-07-30

Very cool! I would love to watch more of the process of how you do your glassworking, a second video might be a good idea, with or without commentary I would definitely watch it!

@rickcreamer8193 - 2022-08-24

Awesome fountain! I believe that the one on Periodic Elements was a mercury fountain, which I had considered building myself.
I thought about using NaK, but I didn't know if it would have enough mass to go that high while running. I see that it does!! 😁
Great videos! Just found your channel and look forward to watching all of your videos!

@AdvancedTinkering - 2022-08-24

Thank you a lot! The periodic videos video was about a NaK fountain. You can still find the video by searching for "NaK".
I was wondering if it would work with mercury but I think the density would be too high. You may be able to move it, but I don't think you would get a nice fountain.

@rickcreamer8193 - 2022-08-25

I may just have to try it. I have almost 20 pounds of mercury available to try it with. Of course it will have to be a small setup due to the weight of the mercury! 🤔😉

@MisterIkkus - 2022-08-23

Your videos are amazing. I'm so glad I found you.

@AdvancedTinkering - 2022-08-23

Thank you! I'm glad you like the videos!

@KallePihlajasaari - 2023-11-12

Beautiful.
Next step a High Power Microfocus X-Ray source.

@manuelcuesta7072 - 2022-07-24

Love the glass working 🔥🔥🔥🔥

@TheZombieSaints - 2023-01-29

Gratz in getting it going so well! Really well done mate 👏👏👏👍

@AdvancedTinkering - 2023-01-29

Thank you! There will be a second even better version.

@pattheplanter - 2022-07-24

Another remarkable achievement. Quite beautiful, as well.

@AdvancedTinkering - 2022-07-24

Thank you!

@mandardeodhar400 - 2023-01-26

Absolutely amazing. Loved it.

@AdvancedTinkering - 2023-01-26

Thank you!

@EdwardTriesToScience - 2022-07-24

you can always make a second channel and post unedited/minimalist edited videos of the glassblowing like thunderf00t

@AdvancedTinkering - 2022-07-24

Yes, that may be a good idea!

@mikeconnery4652 - 2023-04-27

Excellent idea and demonstration. The use of the oil kept the metal from oxidizing and I think that it would make it safer too.

@Meerschwein - 2022-09-09

Cooles Projekt und besonders interessant finde ich den Entwicklungsprozess.
Hab früher viel mit NaK gespielt, auf sowas bin ich jedoch nie gekommen.

@GCarterStokum - 2022-09-03

I really love the lamp work (if it's even called that with lab glasswork)
I'd never seen the foil tape technique before, and find it quite fascinating!
perhaps just another 10% that you used anyway apologizing!
hopefully just good friendly constructive criticism.

Thank You for Sharing!!!
(subscribed and looking forward to more!)

@jesscorbin5981 - 2022-10-09

A man of culture!

@crabcrab2024 - 2023-02-09

You are just amazing! I am very glad to find your channel. Keep it up with your wonderful job. 🙂⛲️

@AdvancedTinkering - 2023-02-09

Thank you! I appreciate the kind words :)

@ryanatkinson2978 - 2024-01-02

Love this channel!

@oneilgoisot9615 - 2022-07-24

I love to see flame working continue like that your videos are perfect!

@DanielGBenesScienceShows - 2022-07-26

Well done on something not many people have done! The music at the end was a nice match.

@AdvancedTinkering - 2022-07-27

Thank you!

@DanielGBenesScienceShows - 2022-07-30

@@AdvancedTinkering You’re welcome! I can’t wait to see more of your work.

@Phred_Phlintstoner - 2023-04-28

I just wanna say GREAT JOB! i for one would love to see the whole glass blowing process, but i realize its hard to edit so it isn't just all glass blowing. If it wasn't so much extra work, I'd love to see the extra glass blowing in an extended video, or maybe stuck on the end of the main video, but i know that would make your video editing time go up exponentially... either way, great job! Keep up the excellent work!

@PghFlip - 2023-04-27

Personally i'd like to see more of the flamework! Fun project!

@PghFlip - 2023-04-27

Could you have used CO2 instead of argon for an easier purge/anti-oxidant or would the NaK strip the O2 from it?

@-r-495 - 2023-02-17

it‘s interesting how three cycles of vacuum and flushing seem to be the norm in many use-cases.
Have you considered bleeding N2 or Ar whilst pulling down? We used to use that in an application to drive out the sublimated water. Only requires a tiny flow at 100μBar and below.
This may, next to heating the glass, help drive out most of the residual non-inert gasses.

Happy to have found your channel 😊

@jafinch78 - 2022-07-23

Very nice! Excellent work! Wow, that's impressive. Guessing in relation to the comment below for a first regarding a Cs fountain; maybe better to try an alloy of Cs with Na, K or both... where the minimal amount of Cs is used just to say was done? 🙂 Now I'm wondering what the graphs look like regarding the Cs concentration and related properties.

@AdvancedTinkering - 2022-07-23

Thank you! No, if I do it with cesium, it will be pure cesium ;)

@flaplaya - 2022-07-24

I love messing with borosilicate it is therapeutic to work with for me... Nice job I'm jealous of that setup and carbon tools. From HID lamp knowledge a flat pure Molybdenum foil seal would be very good, just passing that along. Cheers cool video.

@AdvancedTinkering - 2022-07-24

Thanks for the advice. Do you mean using molybdenum instead of the tungsten for the glass/metall seal?

@benjaminmatte5225 - 2023-07-14

This channel is amazing

@AdvancedTinkering - 2023-07-14

Thank you! I appreciate hearing that :)

@BackMacSci - 2023-01-10

Excellent. Now I want one on my desk.

@AdvancedTinkering - 2023-01-10

I just watched your plasma donut video a few days ago and now you comment under my video. Funny coincidence.
Since I made it I am thinking about ways to make it safe enough to be displayed continuously. Maybe incasing the whole thing in resin. But that would take away from its beauty. If I find a solution, I will let you know ;)

@BackMacSci - 2023-01-10

@@AdvancedTinkering Hahah, you're videos are so good they distract me from working on my own channel loll. And I like that resin solution. Adding a heavy metal base with a cylindrical glass or acrylic bell jar would be another protective design! I'm wondering if we can make a hydrodynamic fountain with an aqueous redox demonstration? Like a more interesting, fountain-version of the blue bottle demonstration?

@AdvancedTinkering - 2023-01-11

Thanks! There is so much good content out there, it's hard not to procrastinate on your own projects.
I also thought about the bell jar solution. But if it drops and breaks, it's still going to set your house on fire :D. I think resin is the only solution providing decent protection even if dropped.

You can move aqueous mediums with the pump. But you will always have electrolysis happening. So I don't think it will be suitable for longer periods of time. But I never tried.

@BackMacSci - 2023-01-11

@@AdvancedTinkering Oh yeah, electrolysis, I forgot about that. And looks like resin is the answer!

@stephenreeves9025 - 2022-07-24

applauding...

@pyromen321 - 2023-02-03

Why not have a second channel for full length torching clips? I think that would make everyone happy

@ZephyrCubic - 2023-12-10

I would love more closeups of working with glass! one thing with the sound, as a headphone user: sometimes the audio is mostly in one ear or the other while you are speaking, and its a little disorienting. The simplest fix for that is probably so make the audio mono instead of stereo in spots where that happens

@christopherleubner6633 - 2023-01-25

And to think the cooling system in an E-beam evaporator used to make halfmium and magnesium flouride coatings on laser optics used about 4 liters of the stuff. Pump is exactly the same type used in your fountain . Magnets with a couple of electrodes to create the flow. 🤓❤

@satyrkrieg - 2022-07-24

This is absolutely amazing

@AdvancedTinkering - 2022-07-24

Thank you!

@kennethwcole2879 - 2023-08-19

Most interested with your skills very beautiful and and deadly good show

@dracrichards5785 - 2022-10-22

Makes me wonder if this concept could work the same way with mercury instead of NaK. Would be awesome to see if you could pull it off and do a mercury fountain. Love your channel and content. Keep doing what you do m8 you got a subscriber here. Stay safe and keep the knowledge flowing m8.

@jhonbus - 2023-01-29

In theory it will work with any electrically conductive fluid, but mercury is not an ideal choice. It's very dense so it needs a lot of force to give it enough of an upward push to make a fountain.

It's also a pretty bad electrical conductor for a metal (I think about 1/3 or 1/4 as much as NaK) so you need to apply a much higher voltage to get a good current flow.

Actually, the reason mercury is a bad electrical conductor is the same (fascinating) reason that it's a liquid at room temp. It has to do with its outer electrons moving so quickly (faster than 50% the speed of light!) so they effectively gain significant mass and are more tightly bound to the nucleus, making them less available for metallic bonds.


Anyway, I'd be much more interested in seeing a caesium fountain!!

@dracrichards5785 - 2023-01-29

@@jhonbus I hadn't thought of that. And that being the reason is knowledge I didn't know. Thank you for sharing that. And a cesium fountain does sound super cool forreal.

@cipaisone - 2022-10-20

I think your channel has huge potential, you are doing great. I personally like the style , but I would suggest you to do an additional version ( without erasing the current one), either on this channel or in another one dedicated to a more “artistic” and simplified version, where you do not talk, just show what you do ( indeed, certainly show some of the glass-working, it is cool), add explanatory text and keep all the time the music style you had at the end of this very video …. If you then add here and there some slow motion it would be too good . Guaranteed.

@tristan795 - 2022-07-24

Now we need a cesium fountain

@JoeSmith-cy9wj - 2023-02-04

You seem pretty handy with a torch. I would suggest trying your hand at making bullet proof glass now. Either that, or NEVER EVER serving alcohol.

@benjaminmatte5225 - 2023-07-14

The flame work is definitely a good thing in my opinion