I was a bit of a mad scientist as a kid in the 70’s mucking about in my parent’s basement. I happened to come into possession of a high voltage transformer used for neon signs. I attached a couple of wires to the terminals and wrapped the other ends around a thin glass rod that came with my chemistry set. They were separated by about a half inch of glass rod. I plugged it in and was fascinated to watch as the electricity arcing between the wires heated the glass until it began to conduct and glowed extremely brightly. I never understood what was happening until now 50 years later. Thanks for making this video. The microwave part was equally fascinating. BTW, I also had some fun making Jacob’s Ladders with the transformer 😄
Thank you for demonstrating a concept I'd first demonstrated when I was 14 in 1972. I had no effective way to record my experiments at that time, so nobody ever believed me that glass conducts when heated. I used a 300VAC source from a power transformer pulled out of an ancient TV connected to a piece of plain glass (from a hobby store) by a metal clip. After a few swipes with the other electrode (a nail inside an insulating wooden dowel forming a rudimentary probe) to get a small arc to form, it began to heat up the glass. Of course, 300V will barely even arc a millimeter in dry air until there's an ionized region of air (i.e. plasma) in which to facilitate a greater arc. Once the glass had heated to red-hot, then I was able to form an arc directly between the probe and the glass, which caused the glass to heat to white-hot. As the temperature increased, it produced a highly conductive column of plasma allowing up to 3-inch long yellow "furry" arcs to be drawn between the probe tip and the glass! I ended up creating some rudimentary, yet functional, thermistors by encasing thin wires inside a globule of molten glass. Interestingly, even after these cooled down to room-temperature, the resistance would change notably when warmed - even by body temperature. I had lots of fun playing with arcs onto molten glass in my parent's basement at that time, and learned a lot along the way.
Maybe your thermistor worked at low temperatures because some metal ions had doped the glass. It would be good to get the opinion of a semiconductor structure specialist on this.
@@Poult100 Thank you for your input. Yes, I'm quite certain that there was some doping of the glass going on there as the metal from the probe electrode vaporized. I mean, I was 14, and I wasn't exactly working in a sterile lab. :)
_Nobody_ ever believed you ?? Is that just internet speak for "the few unqualified people around me that I told" or do you mean you spoke to, y'know, physicists and _they_ didn't believe you ? Because that molten glass conducts is a _very_ uncontroversial claim. (not trying to be mean BTW - nice demo, good for you, especially at 14 etc. - but this should surprise no one with even high school physics and _certainly_ no physics undergrad. It's mentioned in Purcell's "Electricity and Magnetism" [1965] for instance)
As a ceramic engineer, I remember seeing an experimental kiln designed to produce bricks in a large industrial microwave oven. It quickly turned the brick into a melted blob, exactly as you showed here. Thank you.
I agree. I watched the entire video, which I don’t usually do with his content. It’s not that the content is bad; it just doesn’t always hold my attention.
To be honest, he's probably at the point where "criticism" from his many viewers isn't useful, as there's too many different opinions. Also he does quite a diverse range of things, so it'll always be a bit hit and miss. I think it's a bit underrated actually, as lots of channels don't actually do the experiments, they just write on a screen and animate from Wikipedia articles.
Truth be told alot of insulators that we use break down well before that amount of heat. For example when my shop needs to rewind blown windings in an electric motor we bake the motor at 700F over night and all the insulation and varnish that holds everything together burns to ash. That temp will barely begin to glow red at all. Even at less extreme temperatures the insulation is less effective. One diagnostic test measures the resistance between the windings and ground. At 20c (room temperature) the reading at 1000 volts could be tens or hundreds of GigOhms, raise the temperature of the windings to 40c (about 104F) and the resistance can drop to a quarter of the room temperature reading. Start hiting 150c/300f and your risking arcs to ground no mater how good the insulation was at room temperature and your getting very close to when the insulation breaks down and suffers permanent damage.
Not just glass! Any ionic solid is conductive once molten. For example, production of highly electropositive metals such as sodium, potassium, magnesium or aluminium relies on electrolysis of the respective molten salt. These metals cannot be smelted the same way most metals (e.g. iron) because even the reduction potential of carbon is too low. The salt must be free of water because these metals react violently with water, especially under the reaction conditions (the product is metal hydroxide and hydrogen gas).
There's a video over at JerryRigEverything where he goes through a glass recycling pipeline. The glass cullet is sent to a factory where it's melted by just this process (with immersed electrodes) and then used to make fiberglass insulation.
You're right, I worked in a glass factory and the glass was heated by gas burners but also by passing an electric current through the molten glass - electrodes were inserted from the bottom of the furnace through which a current of thousands of amperes flowed.
I once placed a wine glass in a microwave to heat up the wine in it in order to make Glühwein. But even without preheating the glass the stem of the glass became molten and the glass bent 90°. That shows that even at room temperature the microwaves could excite the molecules in the thin stem enough to make the glass conductive.
Dude you might be right. The round stem could've acted like a magnifying glass or fresnel lens in some way focusing and concentrating the radiation @@chaos.corner
I watched a chemistry magic show when I was in college. Take one of your light bulbs. Connect it to a DC current source till it glows brightly. Then immerse the glass portion in a salt solution, then connect one of the wires to the salt solution. The free electrons inside the hot bulb will cause the sodium in the glass to plate the inside of the light bulb with a layer of sodium metal. The sodium is literally moving through the glass due to the electric field and changing to metal on the inside of the bulb !
@@markofdistinction6094 Interesting ! I need to do it could be a new discovery. If I make it , I will cut a piece of that treated glass And apply a voltage on one side to see what come out on the opposite side. Could be great if DC can be blocked like a diode. Also to see if extra pure metallic sodium or something else could be produced ! With that filtration method.
@ The professor told us that if Potassium Chloride is used instead of Sodium Chloride in the salt solution, the glass will explode. This is because the potassium ion is bigger than the sodium, so stresses the glass as it tries to move through the glass matrix.
I think it's pretty good that you keep your enthusiasm for these often asked questions and never demonstrated to this point experiments. Thank you for doing all these things it's a good impression you're leaving behind, no doubt.
Fascinating video... Could the wires inside the glass pull together in the molten glass by electrical attraction? Could the metal in the wires dope the glass to be more conductive?
Wow, thats a stunning experiment. You have invented the Anti-Fuse, It conducts when it gets hot ! Amazing, Great videos as always but this one is a real learner.
And if you If you are able to 'tune' the temperature to be lower, it could even be used as part of a heat warning system. Idk what the actual application may be, (possibly an industrial furnace)
You will also notice that the glass glows yellow when it has electric current passing through it. The exact same yellow as old street lights were in the UK. This is because of the sodium in the glass being excited and emitting its characteristic yellow wavelengths of light, just like the sodium discharge lamps used in our old street lights.
That lightbulb stem that kept on going on its own heat after you stopped heating it reminds me of the Nernst lamp. Nernst lamp uses a piece of ceramic as a filament, which is also non-conductive in room temperature but conductive when hot enough to glow. It operates in air as the ceramic does not oxidize, but it needs a separate heater to heat it up enough to make it conductive.
The difference is amazing of how boring your videos look like they are going to be before you watch them and how totally cool and interesting they were after you do.
This is really cool. It looks like the broken bulb setup even has possible applications... Like some sort of thermally triggered, self-latching liquid relay? I wonder how many times you can cycle that before the glass degrades too much to do it. The way it restarts itself when you apply power, but only if it's above a certain temperature... Definitely seems useful for at least something.
Or possibly some form of warning system. Especially if the glass can be tuned to react like this to different temperatures. And i don't think the glass would degrade, as far as we can tell, it's infinitely recyclable. Granted, sustained heat may cause the glass itself, or the ions responsible for this process to evaporate and leave the glass
Nernst lamp does this and it is my favorite piece of forgotten tech. It uses ceramic "filament" which has to be preheated first by normal filament when it starts. The advantage is it does not need vacuum. The light it gives out is very nice. There are several videos around.
That flame from your torch will carry electricity as well. I am very surprised your torch did not shock you. The blue paint on your torch is probably the only thing that stopped you from getting shocked. In the heating and air business we pass a current through the flame in a gas furnace as a safety feature to turn off the gas if the flame goes out, this is called Flame Rectification. Flame rectification is a process that uses a flame's electrical properties to detect the presence of a flame. Please be safe and don't do that again, if you do wear gloves. This would actually be another good subject for a video. As you have seen with volcanoes creating lightning, electricity is passing through hot magma so even rock can conduct electricity under the right conditions.
There's a wise thing that my chemistry teacher once said, it goes something like "Anything can be a conductor of electricity if you have enough electricity" because even wood and dirt can conduct electricity if you charge it enough, it doesn't account for how good it does it or whether it can stay whole after so much electricity is conducted through it, but it can
I used to work in a glass factory - and the glass in the furnace was heated not only by gas burners but also by passing an electric current through the glass, with electrodes inserted at the bottom of the bath.
I made the same experiment abaout 30 years ago, use 60 watt bulbs and you have a stable situation, blowing on the hot glas wil dim the light and it wil get brighter on its own again. for most people this was an eye opener. nice project the microwave i did not now , dont have a microwave in the time even. LOL
Wow. I never thought that glass could become conductive. Wow, glass electrolysis. Pretty impressive in the microwave too! You can bet I will never try this at home!
Huh, seeing how the glass becoming conductive allowed it to help sustain it's own molten state really makes you rethink how complex the destruction of materials can be. Like if there were a lot in the mix or if it were a collapsing structure or something then there could be a lot of unanticipated effects.
Thats kinda cool, you might find in an alternative universe, first lightbulbs using the same concept. It has distinct advantages to the first lightbulb in that it doesnt have to be in an inert atmosphere, has better durability and is much easier and cheaper to manufacture (its literally 2 wires and glass, maybe a torch too).
This was really cool. But the most surprising thing for me is that you can still buy incandescent light bulbs! It's been quite awhile since I've seen any on the shelves.
2:28 - my heart stopped when I saw you about to touch those exposed wires
Lol, you can see my fingers hesitate and then reposition where I am touching
@@TheActionLabIf I remember correctly, the torch flame is also conductive, so you should be careful.
I was not till that point of the video when I read the comment, after reaching there I could only scream "Yikes!".
@@GianlucaMina If he had been conductive to ground?
@@GianlucaMina But not conductive enough for 120V or even for 220V to pass.
Now I need to see styropyro do this with his crazy 20,000 watt microwave
I'm waiting for StyroPyro to tattoo his face on the moon with his 20,000 watt microwave.
@styropyro please mister 🙏
I was thinking the exact same thing 😂
I was a bit of a mad scientist as a kid in the 70’s mucking about in my parent’s basement. I happened to come into possession of a high voltage transformer used for neon signs. I attached a couple of wires to the terminals and wrapped the other ends around a thin glass rod that came with my chemistry set. They were separated by about a half inch of glass rod. I plugged it in and was fascinated to watch as the electricity arcing between the wires heated the glass until it began to conduct and glowed extremely brightly. I never understood what was happening until now 50 years later. Thanks for making this video. The microwave part was equally fascinating. BTW, I also had some fun making Jacob’s Ladders with the transformer 😄
50 years later 😶😶🫥
Glad you made it 😅❤
@@stanleesiele6028yes old people exist!
My Brother and I did the same thing with those HV transformers. Experimenting with all kinds of "conductive" materials.
@@KeithKenobi At least we didn’t electrocute ourselves 😂. I was scared of it enough to be damn careful!
Thank you for demonstrating a concept I'd first demonstrated when I was 14 in 1972. I had no effective way to record my experiments at that time, so nobody ever believed me that glass conducts when heated.
I used a 300VAC source from a power transformer pulled out of an ancient TV connected to a piece of plain glass (from a hobby store) by a metal clip. After a few swipes with the other electrode (a nail inside an insulating wooden dowel forming a rudimentary probe) to get a small arc to form, it began to heat up the glass. Of course, 300V will barely even arc a millimeter in dry air until there's an ionized region of air (i.e. plasma) in which to facilitate a greater arc.
Once the glass had heated to red-hot, then I was able to form an arc directly between the probe and the glass, which caused the glass to heat to white-hot. As the temperature increased, it produced a highly conductive column of plasma allowing up to 3-inch long yellow "furry" arcs to be drawn between the probe tip and the glass!
I ended up creating some rudimentary, yet functional, thermistors by encasing thin wires inside a globule of molten glass. Interestingly, even after these cooled down to room-temperature, the resistance would change notably when warmed - even by body temperature.
I had lots of fun playing with arcs onto molten glass in my parent's basement at that time, and learned a lot along the way.
Never tried glass, but in college chemistry, we did find molten salt conducts very well. That was over 40 years ago.
Maybe your thermistor worked at low temperatures because some metal ions had doped the glass. It would be good to get the opinion of a semiconductor structure specialist on this.
Once, 50 years ago I tried this with a welder and it worked exactly the same, the hot molten glass acts as a regular conductor.
@@Poult100 Thank you for your input. Yes, I'm quite certain that there was some doping of the glass going on there as the metal from the probe electrode vaporized. I mean, I was 14, and I wasn't exactly working in a sterile lab. :)
_Nobody_ ever believed you ?? Is that just internet speak for "the few unqualified people around me that I told" or do you mean you spoke to, y'know, physicists and _they_ didn't believe you ? Because that molten glass conducts is a _very_ uncontroversial claim.
(not trying to be mean BTW - nice demo, good for you, especially at 14 etc. - but this should surprise no one with even high school physics and _certainly_ no physics undergrad. It's mentioned in Purcell's "Electricity and Magnetism" [1965] for instance)
As a ceramic engineer, I remember seeing an experimental kiln designed to produce bricks in a large industrial microwave oven. It quickly turned the brick into a melted blob, exactly as you showed here. Thank you.
Would be interesting if those were ever designed for like tea sets and stuff.
Ceramic engineer? So you're made out of ceramic? LOL
3:50 you basically also turned the glass into a light producing filament.
mini light bulb lol
These are two of the coolest experiments and results you've done.
I don't know if this is constructive criticism or criticism at all but that is one of your better videos for some time
100% agree
I agree. Something I never really thought about and got excited to see what happened.
I agree. I watched the entire video, which I don’t usually do with his content. It’s not that the content is bad; it just doesn’t always hold my attention.
Some videos are just a little extra interesting
To be honest, he's probably at the point where "criticism" from his many viewers isn't useful, as there's too many different opinions.
Also he does quite a diverse range of things, so it'll always be a bit hit and miss.
I think it's a bit underrated actually, as lots of channels don't actually do the experiments, they just write on a screen and animate from Wikipedia articles.
Usually your show is great but this time you've blown me away!
Great demonstration and exposes a major safety vulnerability when using glass as a conductive insulator.
Truth be told alot of insulators that we use break down well before that amount of heat. For example when my shop needs to rewind blown windings in an electric motor we bake the motor at 700F over night and all the insulation and varnish that holds everything together burns to ash. That temp will barely begin to glow red at all.
Even at less extreme temperatures the insulation is less effective. One diagnostic test measures the resistance between the windings and ground. At 20c (room temperature) the reading at 1000 volts could be tens or hundreds of GigOhms, raise the temperature of the windings to 40c (about 104F) and the resistance can drop to a quarter of the room temperature reading. Start hiting 150c/300f and your risking arcs to ground no mater how good the insulation was at room temperature and your getting very close to when the insulation breaks down and suffers permanent damage.
3:20 every high voltage worker gaining new fears of voltage runaway
I'm a normie and this went through my head. Terrifying stuff.
Very cool demonstration. I had no idea that glass did this at high temperatures. Thanks for showing this video.
Not just glass! Any ionic solid is conductive once molten. For example, production of highly electropositive metals such as sodium, potassium, magnesium or aluminium relies on electrolysis of the respective molten salt. These metals cannot be smelted the same way most metals (e.g. iron) because even the reduction potential of carbon is too low. The salt must be free of water because these metals react violently with water, especially under the reaction conditions (the product is metal hydroxide and hydrogen gas).
There's a video over at JerryRigEverything where he goes through a glass recycling pipeline. The glass cullet is sent to a factory where it's melted by just this process (with immersed electrodes) and then used to make fiberglass insulation.
Ah, the forbidden cotton-candy.
You're right, I worked in a glass factory and the glass was heated by gas burners but also by passing an electric current through the molten glass - electrodes were inserted from the bottom of the furnace through which a current of thousands of amperes flowed.
One of my favorite channels for sure.
You are one of the best UA-cam channels that teach us so much practical stuff
I once placed a wine glass in a microwave to heat up the wine in it in order to make Glühwein.
But even without preheating the glass the stem of the glass became molten and the glass bent 90°.
That shows that even at room temperature the microwaves could excite the molecules in the thin stem enough to make the glass conductive.
I wonder if the glass focused the microwaves in some way.
Dude you might be right. The round stem could've acted like a magnifying glass or fresnel lens in some way focusing and concentrating the radiation @@chaos.corner
I am amazed how yt recommends videos as soon as they are uploaded.
Btw a great video as always !!
If you subscribe to the channel you will be notified immediately 🤷♂️
I watched a chemistry magic show when I was in college. Take one of your light bulbs. Connect it to a DC current source till it glows brightly. Then immerse the glass portion in a salt solution, then connect one of the wires to the salt solution. The free electrons inside the hot bulb will cause the sodium in the glass to plate the inside of the light bulb with a layer of sodium metal. The sodium is literally moving through the glass due to the electric field and changing to metal on the inside of the bulb !
@@markofdistinction6094
Interesting ! I need to do it could be a new discovery. If I make it , I will cut a piece of that treated glass
And apply a voltage on one side to see what come out on the opposite side. Could be great if DC can be blocked like a diode. Also to see if extra pure metallic sodium or something else could be produced ! With that filtration method.
Cool story broah.
@ The professor told us that if Potassium Chloride is used instead of Sodium Chloride in the salt solution, the glass will explode. This is because the potassium ion is bigger than the sodium, so stresses the glass as it tries to move through the glass matrix.
Budget Gorilla glass
6:16 "high on the list of dumb things to do with a microwave"
I'm all in. Added to bucket list
This guy tells me stuff I didn’t even know I wanted to know.
What an excellent demonstration ! Thank you !
You are genuinely so good at your job. Another great video.
I think it's pretty good that you keep your enthusiasm for these often asked questions and never demonstrated to this point experiments. Thank you for doing all these things it's a good impression you're leaving behind, no doubt.
The hole opening in bottle die to microwave was awesome. Never thought this was possible.
Same !
Fascinating video... Could the wires inside the glass pull together in the molten glass by electrical attraction? Could the metal in the wires dope the glass to be more conductive?
No, because, the currents through the wires in the bulb are going in opposite directions.
One of your best videos. Cograts. And thanks for the multilanguaje audio tracks
I always enjoy episodes of The Action Lab.
It's incredible how many interesting physical phenomenons can he still find after all those years!
This is: impressive, scary, interesting, insightful. Thank you!
This is a fantastic way to fix my Christmas lights, thank you!
haha but be careful the exposed hot glass could be a fire hazard
Wow, thats a stunning experiment. You have invented the Anti-Fuse, It conducts when it gets hot ! Amazing, Great videos as always but this one is a real learner.
And if you If you are able to 'tune' the temperature to be lower, it could even be used as part of a heat warning system.
Idk what the actual application may be, (possibly an industrial furnace)
I think that's just called a thermal semi-conductor?
It's already a standard electronic component. It's called a thermistor, often used in heat protection circuits and fire alarms.
Thanks!
I’m always so happy to see a new video by you. This one was awesome!
I always learn something new from your videos.
Thank you for not shilling for a questionable "help" company.
03:30 That's why glass furnaces have platinum bushings to keep the glass flowing (platinum can cope with the high temperatures)
You will also notice that the glass glows yellow when it has electric current passing through it. The exact same yellow as old street lights were in the UK. This is because of the sodium in the glass being excited and emitting its characteristic yellow wavelengths of light, just like the sodium discharge lamps used in our old street lights.
You gotta love the "Oh, by the ways" from this guy. We would most likely get along. 😅
Legendary
4:35 this ends up looking like the light-bulbs are weird glass candles you light with a torch.
3:14 World's most inefficient latch
Today, I learned something NEW! This is a concept I have never conceived.
That lightbulb stem that kept on going on its own heat after you stopped heating it reminds me of the Nernst lamp. Nernst lamp uses a piece of ceramic as a filament, which is also non-conductive in room temperature but conductive when hot enough to glow. It operates in air as the ceramic does not oxidize, but it needs a separate heater to heat it up enough to make it conductive.
This is purdy much the best thing ive ever witnessed!!!!
definitely one of the neatest demos I've seen you do,
That was amazing! Thank you so much for making videos on subjects i didnt even know were possible, stay awesome!!!😁👍
Ur videos are always awesome and well explained. Keep em coming man
I love how excited you always are
You learn something new everyday 🎉🎉🎉❤❤
This was one of the coolest videos I've seen in a while.
You and Nile believe are my 2 most favorite science youtubers
Cool. This gives me ideas. Glass making is crazy hard, but if you can keep the glass warm for as long as you want, it become way easier.
5:37 That microwave has been through hell💀
😂😂😂😂
The difference is amazing of how boring your videos look like they are going to be before you watch them and how totally cool and interesting they were after you do.
I learned something today, thanks !!
Only his character and personality makes the channel so much more enjoyable
This was quite a profound revelation period. THANK YOU.
This is really cool. It looks like the broken bulb setup even has possible applications... Like some sort of thermally triggered, self-latching liquid relay?
I wonder how many times you can cycle that before the glass degrades too much to do it.
The way it restarts itself when you apply power, but only if it's above a certain temperature... Definitely seems useful for at least something.
Or possibly some form of warning system. Especially if the glass can be tuned to react like this to different temperatures.
And i don't think the glass would degrade, as far as we can tell, it's infinitely recyclable. Granted, sustained heat may cause the glass itself, or the ions responsible for this process to evaporate and leave the glass
Nernst lamp does this and it is my favorite piece of forgotten tech. It uses ceramic "filament" which has to be preheated first by normal filament when it starts. The advantage is it does not need vacuum. The light it gives out is very nice. There are several videos around.
Hi,
You are an absolute genius sir and
Thanks for introducing me to another beautiful concept that was unknown to me.
That flame from your torch will carry electricity as well. I am very surprised your torch did not shock you. The blue paint on your torch is probably the only thing that stopped you from getting shocked. In the heating and air business we pass a current through the flame in a gas furnace as a safety feature to turn off the gas if the flame goes out, this is called Flame Rectification. Flame rectification is a process that uses a flame's electrical properties to detect the presence of a flame. Please be safe and don't do that again, if you do wear gloves. This would actually be another good subject for a video. As you have seen with volcanoes creating lightning, electricity is passing through hot magma so even rock can conduct electricity under the right conditions.
This comment should be pinned at the top.
Well that's fascinating
Flame Rectification. ❤🔥
Huh, so that's how that works. That's cool, or er hot I guess
The flame is at the tip only?
I was gonna say thats pretty frightening . But then I read the comment about flame rectification and realized I only saw the half of it. Cool video!
Now you handed a new topic to ElectroBoom to mess with
Glass is conductive at high temperature : I really learned something !!
Thanks !
one of the only channels where I always know that the video will be interesting before I click
Excellent demonstration like any other. Your subs don't expect anything less from you anyways😊
There's a wise thing that my chemistry teacher once said, it goes something like "Anything can be a conductor of electricity if you have enough electricity" because even wood and dirt can conduct electricity if you charge it enough, it doesn't account for how good it does it or whether it can stay whole after so much electricity is conducted through it, but it can
Very cool experiment!
That was the coolest thing I've seen or learned in a good while now.
Very nice, I actually needed this. thanks action lab I definitely never knew I could melt glass with a microwave. Cool info
I’ve felt very positive emotions watching this video.
2:28, ooooh! I was waiting for the *zap* and the "ouch!"
I used to work in a glass factory - and the glass in the furnace was heated not only by gas burners but also by passing an electric current through the glass, with electrodes inserted at the bottom of the bath.
You made my day with that demonstration,
I love it when you said "oh yeah, and this is high on the list of dumb things to do in a microwave"
I got to give it to you, You always come up with crazy interesting things,
You never fail to make an interesting video
Thank you for teaching me my one new thing I learned today
Wow... that was amazing.
Thanks for sharing that!
Brilliant experimentation! Stay safe there, we need you! ;)
Always a cool experiment! Thanks! 🌱
Superb - as always fantastic and thought provoking combination of demos and analysis.
I made the same experiment abaout 30 years ago, use 60 watt bulbs and you have a stable situation, blowing on the hot glas wil dim the light and it wil get brighter on its own again. for most people this was an eye opener. nice project the microwave i did not now , dont have a microwave in the time even. LOL
Thanks for all of your great content. I always learn something.
Wow, such a great demonstration! Thank you!
Your reaction is always fun. The joy of discovery
Very cool. You do some really neat experiments. I love science!
So cool how it continues in a perfect ring
Fascinating insights! I'm all ears! 😄
Use molten glass to produce light is interesting 😊 sounds much more reliable than using tungsten wire
Beautiful demonstration!!!
Wow. I never thought that glass could become conductive. Wow, glass electrolysis. Pretty impressive in the microwave too! You can bet I will never try this at home!
That's awesome! and the real treat is how it stayed on because of the current passing through the glass?
This video was absolute 🔥, literally!
Interesting and thanks. It was a very clever experiment that was well presented.
Huh, seeing how the glass becoming conductive allowed it to help sustain it's own molten state really makes you rethink how complex the destruction of materials can be. Like if there were a lot in the mix or if it were a collapsing structure or something then there could be a lot of unanticipated effects.
This was cool.
I knew about the glass in a microwave thing already but never knew once they become hot or molton enough it becomes conductive.
Thats kinda cool, you might find in an alternative universe, first lightbulbs using the same concept. It has distinct advantages to the first lightbulb in that it doesnt have to be in an inert atmosphere, has better durability and is much easier and cheaper to manufacture (its literally 2 wires and glass, maybe a torch too).
Great demonstration.👍
Very cool. Thanks for the clear explanation and experiment.
This was really cool. But the most surprising thing for me is that you can still buy incandescent light bulbs! It's been quite awhile since I've seen any on the shelves.
another great video. our world is wild and cool