This should be a preclude to teaching spectrometry. Would be perfect way to illustrate how we can identify what stars are composed of, or what the atmosphere of different planets are composed of.
SciFi hoopla. That kind of technology is purely speculation. Considering that carbon dating is bogus and that's technology that was developed in an environment we could physically touch, handle and verify.
@@anotherguy1260 what are you talking about spectrometry? or electron clouds¿ what do you think is actually happening to a photon ie light when it enters a substance? How do you think phosphorescence works? When photons come in they raise the energy level of the electrons within the substance. when they return to their ground state they emit photons of a lower energy. eg fluorescent tube. the UV emitted from the mercury hits the phosphor producing photons of lower energy ie white light. How is this this sci-fi hoopla.???? wnd what does this have to do with the Nucleus of an atom or radiocarbon dating????
Some cheaper cameras can see in infrared (shows up as white). However, it is often overpowered by visible light so it is difficult to see on camera unless you have a filter that prevents visible light from flooding the camera sensor.
Hi ,bravo! Yet , as I recall the chips for cameras are inherently ,better than the eye at seeing infared , I'd guess near infared , ( not as below a u.v. filter) . Can a cheap cell phone camera be altered and or tuned to other frequency s ? I'd like to look for black rocks , visual near infared and far infared would be helpful any ideas? How?
Though there is no hard line separating the fields, t's really more physics here than chemistry. The colors are being created by very specific electronic transitions - d orbital transitions in the transition metals, f orbital interactions in the rare earths. Though the host material properties - amorphous glass or crystalline matter - do shift the absorption peaks of the dopant in different ways.
@@Muonium1 oh, wow, I'm just learning 12th grade chemistry and I'm absolutely green when it comes to the natural coloration of metals except of course their oxidation/crystallization. Thanks, I'll sure look more into it!
@@Muonium1 That's a pretty useless distinction tbh. all chemistry is physics. If you study chemistry you're going to end up spending more time studying orbital transitions than the average physicist, unless they specialize in transition metals or solid state.
The reason that Cranberry glass, used in stainedglass windows/lamps, dishes, vases etc. is so expensive, is because of the precious metal (gold) used in making it.
It depends... I've gotten 10 +/- piece lots at auction for $80 or so. I have perhaps 30 pieces in my collection. Vaseline glass (uranium) is interesting; I have a 3 piece console set circa 1930 I have yet to list on eBay. Iridized glass uses metal salts coated on the base glass and fired. I have a large vase which shades from light green at the top through clear then to light pink at the bottom; the metals are in the glass. It's known as "Watermelon glass" and is fairly rare. Rubina is interesting as well.
That deep blue cobalt glass really is stunning. No wonder, that cobalt glass is popular amongst collectors. I hope to get some tips on an inexpensive but well-made USB spectrometer. Thanks for watching!
@@enuskolada6618 Uranium isn't all that dangerous unless you ingest it or rub it into your eyes. Your epidermis is enough to shield you from the radiation emitted by a small lump of it, never mind the tiny amounts in a piece of glass, assuming the radiation can even escape the glass.
I'm really not trying to be an arse... However... saying that glasses and metals have similar crystal structures makes material scientists twitch. Happy to explain what I'm on about if you're interested. That being said, "glassy metal" car bodies could potentially become a thing. They'd not be see through though (a pity).
@@GemAppleTom *Twitch* Thanks Tom, nicely brought. Very diplomatic. For the random wanderer who might end up here : try googling "Glass structure" and you'll understand :)
@@GemAppleTom haha I had a Brain fart. I meant non crystalline Amorphous metals have a glass-like structure. I'll take subjects I rarely think of for $200, Alex 🍺
No “U” glass? It’s one of the more common glasses to get hold of. (Vaseline) Uranium glass has to be my favourite when it comes to fluorescing under blacklight.
In a way, it's like the light properties of a rare gemstone, the Alexandrite, which changes color when exposed to various forms of light. Thank you for your informative vlog.
wow, I work in an industry that deals with pigmentation so I've seen plenty of examples of metamerism but that demonstration at the beginning is one of the most impressive demonstrations I've seen of it. Usually, it's just something that looks a couple shades off in varied lighting, not entirely different colors.
It is as stunning in real life, since our eyes are good at 'white-balancing' to the used light sources. It is challenging to capture on video though, but with the right light sources and settings on the camera (and a lot of experimentation), it is possible to film. Glad you liked it!
I've only seen mathematically the emissions in the infrared spectrum. I would love, if you can, to see the emission using some kind of IR filter. Great videos! With your written permission, I would like to use them as educational material in my science classes.
I love the color change of the glass under different lights, I have to pick up some for myself because it's just so cool! I did not know neodymium doped glass changed.
This video is an example of why you're one of the best science channels on the internet today. Great video, man! And the photography during the montage was first rate, too. Gorgeous shots!
The gold is particularly interesting. For its color is not due to simple electronic orbital transitions of individual metal atoms or ions, but rather arises from the presence of gold nanoparticles suspended in the glass which have very specific surface plasmon resonance states (delocalized electron oscillations that exist at the interface between the gold and glass) that absorb in the blue-green region. It is very very interesting.
All Stained glass hobby shops carry these as they are often used in lamp shades window panels etc. There you will get the higher end beautiful coloured glass beads/blobs. Cheaper lightly coloured or non-coloured glass beads can be purchased anywhere from "dollar" stores, non-specialized hobby shops, and even florists who sometimes use them in clear vases for effect and/or to weight them down. Have a good day now.
I bought the beads from smart-elements.com. Not sponsored unfortunately, since they are expensive (€349 for the whole set, much more bought individually). Luckily I have patrons helping me out :) Thanks for watching!
That's in another of my videos... Unfortunately, I only have large pieces and a sphere of uranium glass that would roll off my makeshift light table x) But the fluorescence of uranium glass is very interesting. Thanks for watching!
If you would like to revisit experimentation with Fluorescent colors I would appreciate it. Maybe it is no mystery to you, but I have been fascinated by Fluorescent colors/light for some time. So much I decided to start paint with such colors. Believe me, it's a pain in the you know what. At least if you want it to react under both UV and the leds that also make Fluorescent colors fluores. In the long run it is pretty exhausting for your eyes. Also, since my infrared remote for my lamp no longer works, I can't make the lamp static with one color at a time. That makes it even more exhausting for the eyes. Sadly I can't tell you much about the lamp because I don't have the packing material anymore. I might however have the manual, but I'll look for it if you would be interested to know more. The lamp itself is drip shaped and only emits like on the bottom so it's made to be hung in the ceiling, and to not waste light spreading in other directions. The leds are mounted behind a translucent white plastic so you can't see the leds itself. But I did open it once to make it work again, since the internal battery had died. Thanks for interesting videos! Btw, are you by any chance Dutch from the beginning? I know you live in Denmark though. I got a hint of that when you made that flag of colors of the different liquids, but before that I had my hunch anyway because you sound pretty much like the UA-camr Posy, which is Dutch. www.youtube.com/@PosyMusic
You can actualy zoom into the spectrum to see more detail. Here's my experiment where I used a CD as a difraction grating and a camera with x35 optical zoom. The subject was HPS street light: i.imgur.com/cpmO6qF.jpg Also, is there a material that both absorbs and emits in visible?
Brainiac75 it was an old vagary, it was quite cheap, anyways those plastic bands break every year or so, and they really hard to find, I doubt the model is still in production. I still have the watch, but after going through 3 bands I gave up and just kept the case, I don’t have it here, when I find it I'll give you the model (assuming I remember)
Very nice display! You might have included Woods glass (9% Ni) developed during WW-2 which allows IR and UV to pass while blocking visible light. It used to be used on short-wave UV lamps to allow the SW UV from an un-coated mercury vapor lamp to pass.
I have a few preferences: Out of the color changing ones I liked Holmium, and the static Gold, Chromium and Cobalt make such nice colors. Finally with the UV ones I enjoyed Terbium most. Since I flop around with the colors that I enjoy most I would say that I liked Holmium best.
In 2020, physics researchers at Radboud University and Uppsala University announced they had observed a behavior known as "self-induced spin glass" in the atomic structure of neodymium. One of the researchers explained, "…we are specialists in scanning tunneling microscopy. It allows us to see the structure of individual atoms, and we can resolve the north and south poles of the atoms. With this advancement in high-precision imaging, we were able to discover the behavior in neodymium, because we could resolve the incredibly small changes in the magnetic structure." Neodymium behaves in a complex magnetic way that had not been seen before in a periodic table element.[29][30]
At 5:30 that's KSP music, right? I've watched a few videos about KSP lately and (watch sciency/discovery style videos frequently). I wonder if that's why this was at the top of my suggested videos page. Nice video, cool stuff.
In terms of which bead I like the most I can't distinguish between Gold and Cobalt. I LOVE that blue (its almost the same colour as my every day car) but the Gold produces a red that is similar to the paint job on my 2014 Mustang...
I think you are one among the fewest youtubers who were showing what is written in the video description. All others are making videos for advertising purpose only. Many of them wasting our times by giving their introduction before getting into the content.
Hi. I have an idea about why you dont see violet. Because violet is not really part of the spectrum, it seems violet by mixing the spectrum with the background, but in this case the background is black, so it cant be mixed. You should check the TRICHROMATIC MODEL OF LIGHT COMPOSITION, NOT ONLY OF COLOR, and you will see what a mean. Great video.
Many digital still/videocameras do record IR, which can be seen with simple IR-remote pointed to camera. Usually the cheaper ones don't have decent IR blockers, also many cameras used for security are purposefully designed to be sensitive to IR.
"For some reason, it's not recording the violet spectrum?" That's because it doesn't exist. Violet/Magenta doesn't exist as a single color like other colors do, it is a mix of blue and red. Left of blue is near UV which is why you can't see it. The "color" violet/magenta is just a clever trick that our brain does to create a color that doesn't actually exist. In between Blue and Green is Cyan and that has a wavelength and in between Red and Green is Yellow and that has a wavelength but in between Red and Blue is Green on the spectrum, but our brain doesn't perceive Green light when we look at Blue and Red combined, so our brain wraps the spectrum into a circle and invents the color Magenta to complete the circle. It's really quite amazing what our brain does.
Thank you very much. I use the paid version of HitFilm (HitFilm Pro 13). But I think this video could have been entirely edited in the free version, HitFilm Express. I don't remember using some complicated effects in the edit.
Seems like Neodymium glass might lase with a Sodium lamp. edit: Did a literature search and it appears not. Neodymium can use intra cavity mixing and a frequency halving crystal to emulate the 589nm doublet, but no lasing as of yet.
Like: check. Comment: I would like to see that. Check. I want a USB spectrometer, too! There are quite a few projects out there explaining how to make one for cheap, so I will make one. I already have the diffraction gratings, so I just have to get the rest of the components and assemble it
Lovely video. Get a set of quartz cuvettes (they're usually not cheap but there are affordable Chinese ones on eBay) and play with aqueous solutions of metal ions and a spectrometer. :) And kudos for noting that fluorescence is not only from invisible to visible, but can happen in any other range near light.
The roman artisan who designed the Lycurgus cup 1700 years ago knew that adding gold and silver to glass would make it dichroic. The glass cup looks green but when light is shone through it becomes red. I'm pretty sure he would've loved your video!
Unfortunately when we were supposed to use spectroscopes in my intro chem lab, that was when we still had heavy pandemic mandates, so I never got to see how it worked. That was really cool!! Thanks for sharing this 😁😁
This should be a preclude to teaching spectrometry. Would be perfect way to illustrate how we can identify what stars are composed of, or what the atmosphere of different planets are composed of.
You just helped me understand stars better, so it would probably work
UV vis baby!
Or what epectron clouds are doing in response to different energy photons re transmission.
SciFi hoopla. That kind of technology is purely speculation. Considering that carbon dating is bogus and that's technology that was developed in an environment we could physically touch, handle and verify.
@@anotherguy1260 what are you talking about spectrometry? or electron clouds¿
what do you think is actually happening to a photon ie light when it enters a substance?
How do you think phosphorescence works?
When photons come in they raise the energy level of the electrons within the substance.
when they return to their ground state they emit photons of a lower energy.
eg fluorescent tube. the UV emitted from the mercury hits the phosphor producing photons of lower energy ie white light.
How is this this sci-fi hoopla.????
wnd what does this have to do with the Nucleus of an atom or radiocarbon dating????
I love this channel so much.
Glad you like my videos!
@@brainiac75 =D!
I have a "crystal ball" (obvs just a beautiful ball of glass) that changes like your vase, and now I know why! :D
cool video! i have a ashtray looking thingy made from glas that changes coler like your vase.. now i know why ''thumbs up''
You have the coolest ideas!
Some cheaper cameras can see in infrared (shows up as white). However, it is often overpowered by visible light so it is difficult to see on camera unless you have a filter that prevents visible light from flooding the camera sensor.
very cool properties!
Wow that’s insane
Hi ,bravo! Yet , as I recall the chips for cameras are inherently ,better than the eye at seeing infared , I'd guess near infared , ( not as below a u.v. filter) . Can a cheap cell phone camera be altered and or tuned to other frequency s ? I'd like to look for black rocks , visual near infared and far infared would be helpful any ideas? How?
I love molybdenum (mo)
Copper (cu)
And cobalt (co) are also really cool
Honestly I don't like gold (au)
Yes I have a high IQ, no that isn't always fun
i thought this was a scp video from the music, although i know that it is a science video
It's so weird how metals have the ability to infuse things with colors while in certain states. Chemistry is trippy.
Though there is no hard line separating the fields, t's really more physics here than chemistry. The colors are being created by very specific electronic transitions - d orbital transitions in the transition metals, f orbital interactions in the rare earths. Though the host material properties - amorphous glass or crystalline matter - do shift the absorption peaks of the dopant in different ways.
@@Muonium1 oh, wow, I'm just learning 12th grade chemistry and I'm absolutely green when it comes to the natural coloration of metals except of course their oxidation/crystallization. Thanks, I'll sure look more into it!
@@Muonium1 That's a pretty useless distinction tbh. all chemistry is physics. If you study chemistry you're going to end up spending more time studying orbital transitions than the average physicist, unless they specialize in transition metals or solid state.
@@ThePaintballgun and all physics is just mathematics, whine to someone else.
@@Muonium1 Why is it that people are incapable of addressing others on the internet in a civil manner?
"Hey, honey, have you seen my green beads? I don't know where I put them..."
"I don't know sweetie, I only found these purple ones" :D
This needs to get a heart.
Thats the best anal bead joke I've ever seen, 10/10 gg
@@geyotepilkington2892 welp I thought they were wrist beads at first but I guess they're multipurpose
"I don't need purple beads Honey! Throw them in the bin and search for the Green ones" 😂😂
Cool video! Never thought about the metals in glass.
Thank you very much, James. Metals are useful dopants for many uses.
Metals? Conductors you mean?
The reason that Cranberry glass, used in stainedglass windows/lamps, dishes, vases etc. is so expensive, is because of the precious metal (gold) used in making it.
And yet when you put nano sized particles of gold in water it turns green.
@@Braeden123698745,
"Metals in *water* are *AWESOME!*"
It depends... I've gotten 10 +/- piece lots at auction for $80 or so. I have perhaps 30 pieces in my collection. Vaseline glass (uranium) is interesting; I have a 3 piece console set circa 1930 I have yet to list on eBay. Iridized glass uses metal salts coated on the base glass and fired. I have a large vase which shades from light green at the top through clear then to light pink at the bottom; the metals are in the glass. It's known as "Watermelon glass" and is fairly rare. Rubina is interesting as well.
man that opening music tricked me into thinking im watching an SCP-illustrated video. good stuff!
ACR_master hahaha
Cobalt/Molybdenum glass. They look the best out of all of them. And yes, I would like to see you showing us the IR emissions.
That deep blue cobalt glass really is stunning. No wonder, that cobalt glass is popular amongst collectors. I hope to get some tips on an inexpensive but well-made USB spectrometer. Thanks for watching!
Saaame. Those two shades of blue are great.
They look tasty.
Personally, I like Wolfram/Tungsten glass the most.
I thought I would see uranium glass. My favorite glass as its very fluorescing green, as we all imagine radioactive fuel
Me too. I have a uranium glass vase. It was a thing in early 20thC Australia.
It was a thing ...your health now depends on the art decisions of some high guy ...
@@garymingy8671 It's meant to be safe. I keep my toothbrush in it and haven't lost any teeth yet 😃
@@enuskolada6618 Uranium isn't all that dangerous unless you ingest it or rub it into your eyes.
Your epidermis is enough to shield you from the radiation emitted by a small lump of it, never mind the tiny amounts in a piece of glass, assuming the radiation can even escape the glass.
When you turn on the UV light, we're suddenly in space in Kerbal Space Program. :D
Hahaha, I've noticed it too 😂
Kerbal Space Program outer space background music activates above the altitude of 70000m in-game
It's so beautiful. Where did you get those glass drops?
I'd be interested to know as well.
I want to buy a set
Most probably from smart-elements.com
They're not cheap though.
@@oscarchampion5842 You can get those at smart-elements.com/wp at a discounted price.
Its interesting how both glass and metal share similar crystalline structures. I hope one day to drive a transparent metal car 😜
I'm really not trying to be an arse...
However... saying that glasses and metals have similar crystal structures makes material scientists twitch. Happy to explain what I'm on about if you're interested.
That being said, "glassy metal" car bodies could potentially become a thing. They'd not be see through though (a pity).
@@GemAppleTom *Twitch* Thanks Tom, nicely brought. Very diplomatic.
For the random wanderer who might end up here : try googling "Glass structure" and you'll understand :)
Transparent metal was already made centuries ago.
It's called chickenwire. ;)
Robbedoes LeGrand Touché, smarty pants :p
@@GemAppleTom haha I had a Brain fart. I meant non crystalline Amorphous metals have a glass-like structure.
I'll take subjects I rarely think of for $200, Alex 🍺
No “U” glass? It’s one of the more common glasses to get hold of.
(Vaseline) Uranium glass has to be my favourite when it comes to fluorescing under blacklight.
No u
No u
No u
Big thing in thrift shopping..😬.. yes , its very interesting.. the green glass is awesome..😌
Where did you get those glass beads from?
5:17 I really like Erbium glass and Cobalt glass colors. Tungsten glass is also nice.
Now how is metal incorporated into glass?
What are the varieties of glass, and how do they differ in light frequency response?
Tip of the iceberg.
In a way, it's like the light properties of a rare gemstone, the Alexandrite, which changes color when exposed to various forms of light. Thank you for your informative vlog.
Yep, I think it's fantastic that nature can make gemstones with this property. Wish I could afford one :) Thanks for watching!
Your videos are simply wonderful they're a joy to watch and I appreciate all the work you put into him
Show us the ir emissions!! This vid was pretty interesting
i was thinking about uranium glass. i always wondered what nanometer the green light it emmits is when under UV light
I remember seeing uranium glass on a trip many years ago. It was in Krosno, so called "Capital of Glass" of Poland. Cool place
That's so metal!
wow, I work in an industry that deals with pigmentation so I've seen plenty of examples of metamerism but that demonstration at the beginning is one of the most impressive demonstrations I've seen of it. Usually, it's just something that looks a couple shades off in varied lighting, not entirely different colors.
It is as stunning in real life, since our eyes are good at 'white-balancing' to the used light sources. It is challenging to capture on video though, but with the right light sources and settings on the camera (and a lot of experimentation), it is possible to film. Glad you liked it!
Hooray! My favourite scientist has uploaded!
Thanks for the fast and enthusiastic view :-D
@@brainiac75 You are very welcome! Great content as always :)
I've only seen mathematically the emissions in the infrared spectrum. I would love, if you can, to see the emission using some kind of IR filter.
Great videos!
With your written permission, I would like to use them as educational material in my science classes.
I was just taking how these are composed in nanotechnology course, what great coincidence!
The GoPro likely has a UV filter, fyi. A lot of people remove them from digital cameras to take UV photos- it makes trees white!
Isn't that an IR filter actually?
I miss was a very enjoyable presentation. I like the multiple use at the same time well done.
Oooooooh, where'd you get those beads from? I'd love to have a set of them, myself! :D Also, molybdenum and tungsten are my favorites.
www.smart-elements.com/wp/shop/glassbeads/
@@smartelements OOOH!! THANKS!! :D
Ooof. That price tho. xD Just hafta put 'em on my wishlist, then!
Cobalt, Tungsten and Chromium were my favorites until the UV light came on. Then Terbium was the top.
I enjoy braniac videos
Silver bottle.
Gold glass.
I don't give a damn.
This is wonderful!!!!💜💙💚💛🧡❤️
I always wondered why the red glass gems were difficult to find in shops.
I love the color change of the glass under different lights, I have to pick up some for myself because it's just so cool! I did not know neodymium doped glass changed.
Damnit, now I want to get into glass blowing! Except with exotic glass. I've got too many hobbies already, dangit!
Ah yes kerbal space program theme makes me remember all the kerbals I accidentally left in space
Why ultraviolet light looks a little violet, but it is not in the visible light spectrum?
This video is an example of why you're one of the best science channels on the internet today. Great video, man! And the photography during the montage was first rate, too. Gorgeous shots!
Amazing as always every video is worth the wait!
Thank you very much, Damislego!
This is awesome! I love the precise safety warnings before your videos. That’s something most science channels don’t do
Terbium and Erbium. both my favorites
Uranium glass is also stunning under UV
Thank you for the awesome content! I've been interested in using metals to color glass since I first learned about blood glass long ago
Question: where can you buy the beads from? I would love to have a small collection for myself. Extremely interesting to see how they react in light!
You can get those at www.smart-elements.com/wp/shop/glassbeads/
Hi, where did you bought the spectroscope? :)
Gold/Cobalt are my favorite metals in glass. And thanks for the great video
Then you would no doubt like to have a "cranberry" vase or plate. Goggle cranberry glass..very collectable.
The gold is particularly interesting. For its color is not due to simple electronic orbital transitions of individual metal atoms or ions, but rather arises from the presence of gold nanoparticles suspended in the glass which have very specific surface plasmon resonance states (delocalized electron oscillations that exist at the interface between the gold and glass) that absorb in the blue-green region. It is very very interesting.
Very cool video where do you get such things as the glass beads with different metals in from
All Stained glass hobby shops carry these as they are often used in lamp shades window panels etc. There you will get the higher end beautiful coloured glass beads/blobs. Cheaper lightly coloured or non-coloured glass beads can be purchased anywhere from "dollar" stores, non-specialized hobby shops, and even florists who sometimes use them in clear vases for effect and/or to weight them down.
Have a good day now.
Jesus Gonzalez thank you for the information
I bought the beads from smart-elements.com. Not sponsored unfortunately, since they are expensive (€349 for the whole set, much more bought individually). Luckily I have patrons helping me out :) Thanks for watching!
Brainiac75 thankyou
I always thought iron caused the greenish tint to glass since so called low iron glass has less green tint.
*That's the secret to the White/Gold and Blue/Black Dress debacle a few years ago. xD*
You mean that blue/gold dress?
At 5:36 the video successfully broke 70 km in altitude.
i hope ksp 2 will be just as good if not better!
It would have been cool to see how it would have looked if you used an actual yellow wavelength light.
Yes, I need to find some strictly yellow wavelength light sources. Yellow, non-RGB, lasers are just soooo expensive.... Thanks for watching!
@@brainiac75 A low pressure Na lamp should do the trick.
What? No uranium glass?
That's in another of my videos... Unfortunately, I only have large pieces and a sphere of uranium glass that would roll off my makeshift light table x) But the fluorescence of uranium glass is very interesting. Thanks for watching!
Where can I get that spectroscope thing ?
The shown spectroscope is old - maybe even antique... You can find plastic ones on eBay.
@@brainiac75 if you give a retry with the USB spectroscope put the spectra away from subtitles
If you would like to revisit experimentation with Fluorescent colors I would appreciate it. Maybe it is no mystery to you, but I have been fascinated by Fluorescent colors/light for some time. So much I decided to start paint with such colors. Believe me, it's a pain in the you know what. At least if you want it to react under both UV and the leds that also make Fluorescent colors fluores. In the long run it is pretty exhausting for your eyes. Also, since my infrared remote for my lamp no longer works, I can't make the lamp static with one color at a time. That makes it even more exhausting for the eyes. Sadly I can't tell you much about the lamp because I don't have the packing material anymore. I might however have the manual, but I'll look for it if you would be interested to know more. The lamp itself is drip shaped and only emits like on the bottom so it's made to be hung in the ceiling, and to not waste light spreading in other directions. The leds are mounted behind a translucent white plastic so you can't see the leds itself. But I did open it once to make it work again, since the internal battery had died.
Thanks for interesting videos!
Btw, are you by any chance Dutch from the beginning? I know you live in Denmark though. I got a hint of that when you made that flag of colors of the different liquids, but before that I had my hunch anyway because you sound pretty much like the UA-camr Posy, which is Dutch. www.youtube.com/@PosyMusic
Love your vids I've found everyone informational and interesting, your presentation is so on point too! Cheers!
Thank you very much! I do put a lot of time and thoughts into these videos. Glad it shows :)
I like the Vanadium glass
You can actualy zoom into the spectrum to see more detail. Here's my experiment where I used a CD as a difraction grating and a camera with x35 optical zoom. The subject was HPS street light: i.imgur.com/cpmO6qF.jpg
Also, is there a material that both absorbs and emits in visible?
I love how his logo has all the saftey warnings in it
been watching these videos since highschool and im about to graduate university. Always amazing and informative, keep it up
This reminds me of an old watchband I had, it was yellow under the sun, but green when lit by fluorescent lamps
Nice, and an unusual color combination. Any idea what brand it was? Would like to have one :)
Brainiac75 it was an old vagary, it was quite cheap, anyways those plastic bands break every year or so, and they really hard to find, I doubt the model is still in production. I still have the watch, but after going through 3 bands I gave up and just kept the case, I don’t have it here, when I find it I'll give you the model (assuming I remember)
i bought these glass beads thanks!
Top quality work again and a very interesting subject matter ;) Cheers.
uranium glass? VERY entertaining? I learned stuff too.
I wonder what Antonio Subirats would make of this. He is a flat earth nutter btw..
This is really cool, thank you for sharing this.
Light and its interactions with objects like this are always fascinating and very cool
Very enjoyable video as always.
Color changing stained glass
Very nice display! You might have included Woods glass (9% Ni) developed during WW-2 which allows IR and UV to pass while blocking visible light. It used to be used on short-wave UV lamps to allow the SW UV from an un-coated mercury vapor lamp to pass.
THANK YOU. Not (just) for the video, but because I've been trying to find the name of that song (Lightless Dawn) for AGES.
I have a few preferences: Out of the color changing ones I liked Holmium, and the static Gold, Chromium and Cobalt make such nice colors. Finally with the UV ones I enjoyed Terbium most. Since I flop around with the colors that I enjoy most I would say that I liked Holmium best.
In 2020, physics researchers at Radboud University and Uppsala University announced they had observed a behavior known as "self-induced spin glass" in the atomic structure of neodymium. One of the researchers explained, "…we are specialists in scanning tunneling microscopy. It allows us to see the structure of individual atoms, and we can resolve the north and south poles of the atoms. With this advancement in high-precision imaging, we were able to discover the behavior in neodymium, because we could resolve the incredibly small changes in the magnetic structure." Neodymium behaves in a complex magnetic way that had not been seen before in a periodic table element.[29][30]
im not an insect but that yellow light would also repel me
Kavukamari haha
At 5:30 that's KSP music, right?
I've watched a few videos about KSP lately and (watch sciency/discovery style videos frequently).
I wonder if that's why this was at the top of my suggested videos page. Nice video, cool stuff.
In terms of which bead I like the most I can't distinguish between Gold and Cobalt. I LOVE that blue (its almost the same colour as my every day car) but the Gold produces a red that is similar to the paint job on my 2014 Mustang...
I think you are one among the fewest youtubers who were showing what is written in the video description. All others are making videos for advertising purpose only. Many of them wasting our times by giving their introduction before getting into the content.
Hi. I have an idea about why you dont see violet. Because violet is not really part of the spectrum, it seems violet by mixing the spectrum with the background, but in this case the background is black, so it cant be mixed. You should check the TRICHROMATIC MODEL OF LIGHT COMPOSITION, NOT ONLY OF COLOR, and you will see what a mean. Great video.
Many digital still/videocameras do record IR, which can be seen with simple IR-remote pointed to camera. Usually the cheaper ones don't have decent IR blockers, also many cameras used for security are purposefully designed to be sensitive to IR.
"For some reason, it's not recording the violet spectrum?" That's because it doesn't exist. Violet/Magenta doesn't exist as a single color like other colors do, it is a mix of blue and red. Left of blue is near UV which is why you can't see it. The "color" violet/magenta is just a clever trick that our brain does to create a color that doesn't actually exist. In between Blue and Green is Cyan and that has a wavelength and in between Red and Green is Yellow and that has a wavelength but in between Red and Blue is Green on the spectrum, but our brain doesn't perceive Green light when we look at Blue and Red combined, so our brain wraps the spectrum into a circle and invents the color Magenta to complete the circle. It's really quite amazing what our brain does.
Awesome video! By the way what editing software do u use?
Thank you very much. I use the paid version of HitFilm (HitFilm Pro 13). But I think this video could have been entirely edited in the free version, HitFilm Express. I don't remember using some complicated effects in the edit.
Great video !!!!!!!!!!!😊😊😊😊
Seems like Neodymium glass might lase with a Sodium lamp.
edit: Did a literature search and it appears not. Neodymium can use intra cavity mixing and a frequency halving crystal to emulate the 589nm doublet, but no lasing as of yet.
does anyone know where i can get these glass beads????§ i need them NOW!!!!!!!!!!!!!!!😁😁😁😁😁
We have several "Vaseline glass" vases and bowls. en.wikipedia.org/wiki/Uranium_glass#Vaseline_glass
Beautiful under UV light.
Like: check. Comment: I would like to see that. Check. I want a USB spectrometer, too! There are quite a few projects out there explaining how to make one for cheap, so I will make one. I already have the diffraction gratings, so I just have to get the rest of the components and assemble it
The gold and the molybdenum are absolutely gorgeous. (I also love the iridium and the cobalt. I can’t pick one favorite lol)
Lovely video. Get a set of quartz cuvettes (they're usually not cheap but there are affordable Chinese ones on eBay) and play with aqueous solutions of metal ions and a spectrometer. :)
And kudos for noting that fluorescence is not only from invisible to visible, but can happen in any other range near light.
The roman artisan who designed the Lycurgus cup 1700 years ago knew that adding gold and silver to glass would make it dichroic. The glass cup looks green but when light is shone through it becomes red. I'm pretty sure he would've loved your video!
yo , that video was _lit_
Unfortunately when we were supposed to use spectroscopes in my intro chem lab, that was when we still had heavy pandemic mandates, so I never got to see how it worked. That was really cool!! Thanks for sharing this 😁😁
I've recently discovered the joys of Uranium glass which fluoresces an awesome yellow under UV.
Thanks for highlighting my limited colorblindness. "This is purple, and this is pale blue." Okay if you say so.