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@Tyresio12

Жыл бұрын

Just in case, NurdRage had also made SrAl2O4 luminophore in a microwave a couple years back.

The instrument panels in the Apollo command module & lunar module utilized electroluminescent backlighting.

You can produce very pure aluminum nitrate with nitric acid by first dissolving a few milligrams of clean mercury into the acid. A tiny bead should be sufficient. The aluminum reduces the mercury ions to mercury, which amalgamates with the foil surface, preventing its passivation. Aluminum amalgam is very reactive, so add ice to the acid before adding the foil and use a cooling bath to prevent runaway. Also, use a molar excess of foil so that the mercury can be filtered off, as it will adhere to the unreacted aluminum.

Amazing work!

@EXTREME-DIARRHEA-BLASTING

Жыл бұрын

i cant wait to see your next video too!

You just keep getting better! Every time I said, “okay, I get it”, you doubled down with another experiment and another phenomenon! I’ve been watching you for years and I just wanted to say thank you for the hard work you do.

Just a slight correction at around 2:40. The glowing in the moment is fluorescence. But the afterglow is phosphorescence.

@heulboje21

5 ай бұрын

Adding on to that, the differentiation between fluorescence and phosphorescence can only be made with lifetime measurements of excited states. Therefore, if you can't for sure say which it I'd, you should call effect like these "Luminescence" since that is,.Ad the overarching name, always correct.

Thanks for the awesome video. Interestingly, the Stewart Semple ‘LIT’, which you bought from the USA (13:06) is actually made by a British Artist who started making his own pigments in response to one particular artist being given sole rights to use Vantablack (a nano carbon texture that at the time was described as the ‘blackest black’). Stewart disagreed with this monopoly, and LIT has been one of the products he’s created since.

I used strontium aluminate paint to paint flames on the exhaust pipes of my harley. As the pipes heated up it glowed without the addition of light.

@anonymousanonymous6424

11 ай бұрын

Interesting idea!

Thank you for sharing this comprehensive deep dive into things that glow!

Very detailed and informative video as always, thanks!

Great job walking through the many steps and end results. The applications of flex indicative luminescents is pretty cool.

Wow, this is commitment. Thanks for yet another interesting and entertaining video 💖

Wonderful video as always! Thanks for your hard work

Amazing video, fascinating topic!

When I bought my house a couple years ago, which included a beautiful inground swimming pool, I found that in the process of the pool being surrounded with concrete, had "glow in the dark" stones embedded in the finished surface. So during the day, these stones would "charge" in the sunlight, and after sunset would glow. Not bright enough to read by, but certainly helpful in walking around without missteps.

I love these vids! Thx 👍

One of my favorite Estonian channels, sorry to hear you have been under the weather. So was I due to presumably covid and only recently have I been productive again.

You're amazing bro 👍. Thank you for your videos

So great to find unseen video in original voice over. Love it😅

I played with fluorescent fishing lures as a child; they were a flat bit of plastic that glowed green. I'd 'charge' them with a lamp, then watch the glow slowly fade. On a cold day, I discovered that static-discharges would make 'dark lightning' patterns in the glowing plastic of the lure! I would charge the lure with a lamp; sparks passing through the lure made a brief bright streak that 'used up' the stored light energy! This resulted in fine dark lines appearing on the glowing background. Lichtenberg patterns on the cheap? Heating the glowing plastic made it brighter, but the glow fades faster. Always thought they'd make a novel 'short-term memory' for a gadget...

I have also seen this light emission when twisting/pressing on some high end luminescent vinyl off cut I got from a customer of mine about 10 years ago. It also reacts to heat from my hand print or any other heat source. I still have in sitting on a box in the shed and it's very bright at night. I purchased a 405nm laser pointer a few days ago and that energizes it something crazy, extremely bright!

@glennosmond4306

12 күн бұрын

Would that fabric be suitable to make a flag? Would it make hurricanes more fun?

Nice to see you featuring Stuart Semple's products.

Awesome video !

I learned something new! Thank you.

Amazing phosphorescence! Bravo!

Great vid!

Thank you for sharing your experiments! I always appreciate chemistry done well. Science is a method. It is a method of noticing, then sharing what you notice to others and asking "Do you notice this too?" And in this dialogue, we further our mutual understanding and create a shared lexicon to further the field.

@yorkshirebikerbitsnbobs

Жыл бұрын

lol, that's what humans usually do to communicate..

@mars1450

Жыл бұрын

@@yorkshirebikerbitsnbobs Yes, lets go deeper on that idea. Science is natural philosophy. Philosophy is primary to all understanding and knowledge. Philosophy cannot come into human minds without the Socratic method. Whether internally or with conversation, but a back and forth is required. Yes this is all obvious and basic, but we are not in an era lacking knowledge but rather clarity.

@Robert_McGarry_Poems

Жыл бұрын

​@@mars1450 Right. But it's also the allegory of the cave. If you replace the concept of cosmic knowledge with just learning... It is the onus of the individual to engage in tasks that bring about the elevation of knowledge, through natural curiosity. Just because you can say that for yourself, doesn't readily mean those remaining in the cave have enough experience of anything ever, to even begin to understand what you are talking about when you return to "teach" them.

@mars1450

Жыл бұрын

@@Robert_McGarry_Poems It is my personal belief our only true guru is self. Everything and every moment is a lesson. It's up to you what you learn from it. That's why I personally value music so highly. At least for me, I learned to teach myself. I believe in the free exchange of knowledge and conversation, but I don't think anyone should declare themselves "teacher." When the student is ready, the master will appear.

@Robert_McGarry_Poems

Жыл бұрын

@@mars1450 Yes. And...also but, Society is the only place that institution can exist, as per your second point about dialectics. Meaning that a convention and system for training humans to co-exist with that institution is definitely necessary. I.e. Culture... As to learning literature, music, rhetoric, etc. We are oxytocin driven animals, that evolved with mouths. We already hung out in groups and learned by imitation and mimicking. Attaching layered memetics to the utterances over time, was bound to happen. Which is, I guess, slightly the same as your point. My point... We have to broadcast teach in hopes of, at least, creating good mimics. The yard stick analogy, cut it in half, and then that half, half again. The bottom portion are people who either don't get it or don't care to. But they still mimic... Then the doers, then the thinkers. My whole point is about meta cognition and the layered ability to see teaching and learning from a mind set that is above the individual, or outside of ones "self." When you return to the cave, it is a shot in the dark, but you still do it. Because honestly even with what feels like, sounds like, looks like, two humans communicating... the other minds problem says that we will never experience another chemistry or brain wiring. It's all for ourselves, but if the conventions and the experiences those conventions elicit are in sync enough to guarantee a certain response from the other, then it doesn't matter that it's arbitrary. But yeah, learning is individual.

Awesome and interesting video!

excellent video thank you

i love your shirt!

so awesome!!!!

Thank you for illuminating us, dear Thoisoi2 💢💢💢

could you do a test on the material for me it seems that the mechanical luminesence is caused by either heat or the static electical currects and i dont have any of this material to test it so i was hoping you woudl test this phenominon to see which of the 2 make it produce more of an effect or maybe could you put a volt meter int eh stretchy material to see if you egt a low electrical output when you stretch it to see if maybe thats the reason it glows

Good work sir

One of my watches has a 2 stage lume effect, in normal light it looks bright orange, the first stage of lume the colour visually changes to yellow and the more light it receives it then goes to a bright green in the dark but also visually but returns to orange when not lit up.

If the aluminaphore powder glows when mixed into something and twisted, does the raw material glow when stirred?

@Vindolin

Жыл бұрын

I tried it with 50g I have in a small glass. I shook the hell out of it and stirred it like mad but nothing. Crushing it also did nothing

Amazing video

I love this video

Its wild you said about, how powerful the piezoelectric circuits are. You should of mentioned how the same material is used for those super load fire alarms. That fact always spun me out. Makes sense somehow.

I remember a set of wall switch plates from the 1950s which glowed purple and did so quite well. I wonder what they used in those?

2:07 Wasn't this that the Radioactive Boy Scout used to make his own little portable functional nuclear reactor?

Great video.

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@jediknight2350

Жыл бұрын

have u tried to make philosopher's stone ????? come on try.

@alllove1754

Жыл бұрын

I beg you pardon, Mr. Thoisoi2, but what does this word "Thoisoi" mean??? It's not English so I supposed a name, but the "2" on it threw me off and I have my hunches based off of very little. Thank you and God Bless you.

11:50 The stuff, that sparked, glow the fastest an brightest.

It's 5 am so I save this juicy video hopefully on luminol for later.😉

I like your t-shirt it's really amazing

For anyone who want to buy strontium aluminate out of curiosity and try different colors, buy it uncolored and mix it with cheap fluorescent powder. I had both laying around and it worked great for coloring it. Thinking of it, I have to try sprinkling some onto my Panellus stipticus and see if that works.

@Tattlebot

Жыл бұрын

That's not how it should be done. Pure strontium aluminate has a needle-like shape, while strontium aluminate based pigments are sintered with boron, creating spherical particles. It has been discovered that adding boron and numerous other trace elements greatly increases the performance. Stick with commercial products which have far better performance and are less of an inhalation hazard.

Amazing.

Nifty as usual !

I liked the noctilucent bouncy ball at the end the best. 😎 It's easier and cleaner to make aluminum nitrate from aluminum oxide and nitric acid. I never have suceeded with phosphorescent (Cu doped) zinc sulfide, but Mn doped ZnS shows a beautiful triboluminescence when it's crushed.

@petevenuti7355

Жыл бұрын

Do you have a video on that?

@experimental_chemistry

Жыл бұрын

@@petevenuti7355 Unfortunately not, since my camera has an autofocus that cannot be switched off and therefore cannot capture weak, inconstant lighting effects sharply in otherwise complete darkness. Unfortunately, several videos have already failed because of this... 😞

@petevenuti7355

Жыл бұрын

@@experimental_chemistry well, if you ever get access to an adequate cam, if only long enough to make a short, I'd give it a thumbs up.

@experimental_chemistry

Жыл бұрын

@@petevenuti7355 Maybe one day l can afford one, if I have enough patrons then or a sponsoring dealer for good video equipment (wave the fence post... 😉).

@petevenuti7355

Жыл бұрын

@@experimental_chemistry we all have that friend that seems to have all the toys(well most), I was just hoping yours has a camera you can borrow meantime.

Very interesting.

You said you would put a link here to Nigel's channel about making this. Can't see it at the moment?

Anything that glows, is cool! : )

Love your shirt 👕

You said that it glows brightly under a UV lamp, as well as a strong afterglow. Even things that are normally defined as fluorescent and not phosphorescent have a decay time, in other words, everything that glows will continue to glow after the stimulus radiation is turned off! It could be for picoseconds , tens of seconds or hours! Personally I distinguish the two by whether or not it involves a quantum forbidden state to delay the electrons jumping down releasing a photon. Without that forbidden state it takes a small fraction of a second to reemit light. Orders of magnitude longer with the forbidden state. Now what the actual official definition is based on, (time or quantum mechanical effects) I am uncertain, it maybe distinguished purely by convention and culture, and yes possibly different in different languages. Some may decide to call all light emitted after a delay phosphorescence, or call all light emitted up to a second later part of fluorescence, I heard it every way in-between! What is THE proper definition?

@anonymousanonymous6424

11 ай бұрын

Thanks for your insightful comments.

It's quite an advance from zinc sulfide to strontium aluminate based phosphors.....wonder what the next advance will be? Very cool...cheers!

@SeaforgedArtifacts

Жыл бұрын

United nuclear Corp makes europium based powders

Sick shirt!

I said wtf out loud when the microwave technique worked; I was thoroughly impressed

Instead of buying pure reagents, it would probably be cheaper to just buy a vacuum desiccator and make everything over a couple of days rather than months.

I hope you obtain many glowing reviews!

@me0101001000

Жыл бұрын

badum tiss

Could you use multi-layer 24K gold gilding to increase conductivity?

The stretchy one was super interesting

Can you do a selenium video?

I really enjoy your English voice overs... like a lot. Especially when your lips aren't moving. Reminds me of the old Japanese monster movies. Just makes the science more legit 😅

@petevenuti7355

Жыл бұрын

Go go gizora ...

When these pigments (the strontium aluminates that aren't plastic encapsulated) get destroyed by moisture how do you regenerate them?

I just have to say that the subtitles are hilarious. When said you were going to test the crystals, it said you were going to taste them.😂

nice time spending Sir

Pyrosynthesis will always create a phase-impure strontium aluminate with poor performance. You need a very expensive high temperature (1200+ degC) controlled atmosphere furnace using a reducing gas atmosphere. The process takes many hours to make a high quality product because sintering is also crticial.

Really nice. I would like to do nice things like these too.

Extra thumbs up added for the cat.

Where do I get that shirt?

Please make an English video about radon

It is not called Fluorescence. There is a big diference between Fluorescence and Phosphorescence.

@JGHFunRun

Жыл бұрын

Yup, fluorescence is immediate conversion of high energy light to lower energy light; phosphorescence is the prolonged release of light

@koevoet7288

Жыл бұрын

Maybe a translating issue?

@RhapsodyInBlaah

Жыл бұрын

So many nitrates!

@GlazzedDonut

Жыл бұрын

Is there more

@KaushikAdhikari

Жыл бұрын

@@JGHFunRun yep! There more differences than similarities

When I first read the title I was worried you got in trouble with substance abuse. Glad I was wrong 😂 Very informative and entertaining video, keep up the good work mate!

Where is Neil video link? :)

Nice video.

Only four months later! Haha Man that's dedication!

Might be that DIY last less, but the shapes it took are beautifully random

✨

The most famous manufacturer for luminescent paint that is used on watches is LUMENTICS..

Strontium sure make for a lot better phosphorescence

I was wondering how long it would take until you went full Heisenberg on us!

Damn! I would have killed for that shirt as a kid, where do I get one?

Doped Tin Sulphide

Electroluminescent panels are supposed to driven with an AC voltage

@mikekokomomike

Жыл бұрын

55 years ago they made night lights that plugged flat against a wall outlet, might have been General Electric

I thought it is called phosphorescence if it keeps glowing after you remove the light source 🤔 Fluorescence is if it just glows if you point UV light to it. After you remove the source it doesn't keep glowing

I would have put those aluminium nitrate crystals in a vacuum chamber rather than waiting months, better results!

I bet if you hit the ball with a hammer, the cracks would light first. And both contact points. Cool video bro

💪#1 VIDEO, FROM THE U.S.A.

18:30 Action lab 🧐

👍🏻

you should collaborate with nigel it would be very interesting to see

why not use Phosphorus pentoxide for faster drying.

Отлично как обычно 👍😎

They look like light amplifiers for night vision.

The word for without water is anhydrous

🤣 from the title, who else thought this was going to be a video about meth

would you be open to accepting caption transcript volunteer work?

omg

Why his voice is not in sync with his lips? 😟

@chemistryofquestionablequa6252

Жыл бұрын

Because it's dubbed

@SmolTerribleTornado

Жыл бұрын

Bet he has some hyper rare time-altering chemicals only known to a handful of scientists there

@theschnilser7962

Жыл бұрын

It's a voiceover of a video in russian.

@realcommiecat7

Жыл бұрын

He does the video in Russian, uses the same video and voices it over in English