FAULTY Flicker-Flame Light Bulb? Amazing in slow-motion!

Рет қаралды 45,201

7 күн бұрын

Why does a flicker-flame lamp flicker? And why is the beautiful gas discharge not taking the shortcut between the closely spaced electrodes?
In an attempt to figure out how such a specialized light bulb works, I will test my only flicker-flame lamp. One that seems faulty, but still turns out to be stunning when slowed way down. A marvelous demonstration of Paschen's Law.
Let's take a closer look at the beauty of imperfection!
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#flicker #lamp #lightbulb

Пікірлер: 153

@pvic6959 5 күн бұрын

I love that you understand this stuff so much that you can tell when some random flickering is flickering with the wrong randomness

@brainiac75 5 күн бұрын

Hehe. Well, I just compared with other bulbs I have seen in this form factor ;) Actually just ordered some more for a larger sample size. Hope to show how this one stands out. Or maybe the relative low voltage in my house is the issue... We'll see when the new ones arrive.

@Roads_of_Europe 5 күн бұрын

@@brainiac75 Perhaps you need a variac so you can pump up the voltage to the rated voltage needed. Those variacs are actually very useful and not that expensive.

@pvic6959 5 күн бұрын

@@brainiac75 That will be a cool comparison!

@BritishEngineer 5 күн бұрын

It’s called an education in electrical engineering.

@MadScientist267 5 күн бұрын

@@BritishEngineerMixed with the idea it does not behave anything like a flame would... we're kinda in common sense territory still right here.

@albertoallegri4202 5 күн бұрын

I remember a video from "tecnology connection" talking about those lamp , finally we have a video that give an answer to all the doubt regarding those strange and beautiful lamp😁

@brainiac75 5 күн бұрын

Hope I got it right then ;) Usually, I have some scientific papers written by actual scientists to rely on. For some reason, I can't find any papers on these lamps? Maybe the scientists are in doubt too x) Thanks for the early watch and comment, Alberto!

@vinnysworkshop 5 күн бұрын

@@brainiac75By the way, Technology Connections is a great channel with a delicious sense of humor, even if the video is an hour long and the topic is a cheap mini fridge.

@albertoallegri4202 5 күн бұрын

@@brainiac75 I'm sure you got it😎 Yeah, regarding this specific application of neon lamp also this other guy didn't find much except few old patents that were not so detailed and sometimes were conflicting regarding the tipe of coating used on the electrode... 🤷‍♂️ Anyway, great video as always! 😁

@DerMarkus1982 5 күн бұрын

Same here! Instantly had to think of Alec's contribution to the topic! I'm curious what new information/aspects might lurk in *this here* video!

@playgroundchooser 2 күн бұрын

Technology Connections is so freekin good. An hour long video on why you need to change you dishwasher detergent? You bet! Why us Americans have such crappy electric plugs? Why not! A whole saga on car's blinkers? Damn straight I'm watching that!

@sulfie46 5 күн бұрын

Never seen one of these flicker flame bulbs on such a large scale! Exciting!

@brainiac75 5 күн бұрын

I tried looking for some more samples for sale in Danish shops. Did not find any... They are available online though. Just 8 more for larger sample size :D Thanks for the early watch and comment!

@Koopai386 5 күн бұрын

I must tell you how much I love your content. These days, you only find brainrott, but you're actually doing quite the opposite. I would like in your future videos to also tell us where you get these items for your videos.

@marcellkiss6545 5 күн бұрын

I have never heard of such bulbs but now i want to buy one :))

@brainiac75 5 күн бұрын

They are quite nice. Useless for lighting a room, but they are interesting to watch, last for what feels for ever, don't mind getting turned on and off quickly and often, and use next to no electricity. I can't find them for sale in physical stores anymore in Denmark but they are widely available online. And inexpensive too - considering how tricky they can be to optimize. Well, OK, mine isn't optimized well... Thanks for the early watch, Marcell!

@DanielGBenesScienceShows 5 күн бұрын

@@brainiac75 We have a drawer full of these bulbs and use them in our small Dept. 56 Dickens Village houses that we set up at Christmas to replicate fireplace light. @marcellkiss6545 I hope you can get a few! They really are charming.

@Doramius Күн бұрын

Brian, I love and subscribe to your videos. Keep them coming. I will say KZfaq has not been kind in its algorithm, as the last video directly shown to me was 6 months ago, and I'm subscribed with the Notification bell turned ON. Thank fully this one did show up and I did a mini binge. Just letting you know not to get discouraged by KZfaq, and you are a gem to the scientific community. Armatures and professionals alike.

@GothGuy885 5 күн бұрын

these bulbs always facinated me as a kid, and still do 😀😍

@claromaro 5 күн бұрын

My timing of launching KZfaq has never been better

@brainiac75 5 күн бұрын

Great timing indeed :D Thanks for the early watch and comment!

@joshacollins84 5 күн бұрын

I think this definitely warrants more testing! This was very interesting.

@tommiller1315 5 күн бұрын

I guess these neon lamps were first introduced well over a hundred years ago, long before the output of LED's was discovered. My main fascination is how the need to remove gasses from thermionic valves (maybe?), led to the discovery of the noble gasses with their own spectra and then to produce such pure neon etcetera that the modern analyser does not detect additional elements.

@reubenwoodley96 5 күн бұрын

Nice comment @tommiller1315. I want an antique one now - do you think such a thing could be found there days? I searched the net, but without much luck.

@tommiller1315 5 күн бұрын

@@reubenwoodley96 Oldest item I found, (in the USA) is this item number:276435457385 on the bay. Circa 1950 at a rough guess. They look very similar to current models though.

@bountyhunter4885 5 күн бұрын

@@reubenwoodley96 Amazon has them

@bountyhunter4885 5 күн бұрын

Amazon has them

@tommiller1315 4 күн бұрын

@@bountyhunter4885 Didn't think Amazon sold antiques.

@Richardincancale 5 күн бұрын

One of the more interesting features of neon indicator bulbs is that they are light sensitive! I noticed one night in a crappy hotel that the indicator light for the aircon was flickering (due to age) during the day, but at night it was off totally. Using just the light from my iPhone screen to illuminate it was enough to start it up again. These bulbs need either quite a high voltage to ionise the Ne or some external source to ionise it. Apparently some Ne lights that were used for early counters to drive Nixie tubes included a little bit of radioactive gas mixed in to ensure reliable and rapid ionisation. Others have an incandescent bulb beside the Ne bulbs to help them to fire!

@russwilliams4777 5 күн бұрын

Fasicnating! 😻 I'd love to see a side-by-side comparison with a properly-working bulb - do they consume different amounts of power, how does the high-speed look, etc? Was this a one-off manufacturing defect, or is it a fundamentally-broken design?

@brainiac75 5 күн бұрын

Me to! Just found time to order some more online (could not find any for sale in Danish shops...). Fingers crossed that they will have bent tips or at least a more normal performance. Thanks for the early watch!

@e1woqf 5 күн бұрын

@@brainiac75 Would you like to make a video about it? It would be very much appreciated!

@SeanBZA 5 күн бұрын

You could try gently tapping the bulb so that the electrodes spread apart slightly, so giving a gap larger at the top that might change discharge. Or surgery to remove the lamp base, and lower the resistor value a little, so that you get a higher current. Will need a new base, easy to get from a blown LED lamp, and a little 5 minute epoxy to make it adhere to the glass base.

@sqeekykleen49 5 күн бұрын

Wow Barak, we both got a lil gray....😮 Wives will do that.😊

@tfrowlett8752 5 күн бұрын

I have a couple of these in my collection, including one of those novelty lamps you buy at souvenir shops. Mine has a Yin and Yang symbol in the middle and it has a steady glow.

@DragonHide94 4 күн бұрын

Thats a cool visualization of AC current pushing and pulling in a circuit.

@Broken_robot1986 5 күн бұрын

I just got my flicker bulb, Goodwill find. The color is so pretty i would like to have 3-4 on display.

@rollbot 5 күн бұрын

amazing! i never would have guessed. it absolutely is the opposite of what i would 'think' it would do logically. thanks for sharing!

@tuopeeks 5 күн бұрын

There seems to be a lot going on in these flicker lamps. I've noticed, as these age, they often slow down and eventually the discharge becomes fairly static on one area. Always thought the electrodes emissive surface must be degrading too.

@SianaGearz 4 күн бұрын

4:46 love the animation of the flames on the reverse side. Arguably a manufacturing defect - the manufacturing step where the leaves are stamped with an outwards curvature got accidentally skipped. It happens. It might even happen to a whole batch. As long as the bulb still appears to work, it will be sold, perhaps the reseller got them at a discount. One of those cases where failures are often more insightful than successes.

@Subgunman 5 күн бұрын

I have read that the electrode are doped with several elements which will more than likely affect how the lamp operates. Might look into this issue.

@DJStompZone 5 күн бұрын

Great video! I would definitely be interested in seeing a test of your hypothesis on the effect of ionizing radiation on the breakdown voltage! A strong emitter of UV could be interesting to test as well. I wonder if you could find a set of conditions that would reproduce the intended flickering effect, despite the defect.

@RafaCB0987 19 сағат бұрын

Really cool to know how this kind of lamp work, I always found then really beutiful

@JustPyroYT 5 күн бұрын

Yeeeeesss a new video ❤

@brainiac75 5 күн бұрын

Like your never-fading passion, JustPyro ;) Thank you as always.

@snowdaysrule 5 күн бұрын

Sometimes these bulbs have electrodes with an oxide coating applied to the surface to alter their emissivity. Like the inner surfaces may be coated to insulate them to keep the discharge only on the outside of the electrodes. And the flat, nearly parallel spacing is key too, as it provides an environment where many equipotential points are available for the arc to strike.

@martine-e-dee 2 күн бұрын

The manufacturers should send you another one to try.

@Madpegasusmax 4 күн бұрын

nice bulb ,lucky to find one like that

@b4ph0m3tdk9 2 күн бұрын

We got an Impressive educational video from that faulty lamp. Anybody else would just have trown it out.

@AllLoudNation365 5 күн бұрын

Beautiful 🧡🔥

@glynnetolar4423 5 күн бұрын

Neon has been used for years as a cheap power on indicator. One of it's weaknessrs is over time they outgas and start to flicker and fail. They also will discharge at about 100V.

@brainiac75 5 күн бұрын

Yeah, need to follow up on this video with examining the small neon indicator bulbs. Have ordered some more flicker-flame lamps too for larger sample size. Hopefully with bent tips this time ;) I do have some of the small neon lamps in on/off switches on multi-plug extension cords. One of them has been on continuously for many years (close to a decade) with no flickering visible yet. Looking forward to seeing one start to flicker :D Quite amazing at how low voltage (AC) they can make them discharge considering the high neon content. Thanks for the early watch and comment!

@Roads_of_Europe 5 күн бұрын

What a passion for the simple things in life. Great video. I always enjoy your videos with a very nice explanation.

@paulcooper8818 5 күн бұрын

Thanks for the explanation

@leonreynolds77 Күн бұрын

You are correct it is faulty. I have gotten some like that one. And I have been unlucky enough to get one that doesn't even light at all because the gap is way too close between the plates. Ideally it should be like you said a nice straight gap with tapering outward at the tips like you said. 👍

@JustPyroYT 5 күн бұрын

Oh this was really interesting to watch! Looking forward to future Experiments! :)

@startedtech 5 күн бұрын

I think my favorite type of flickering flame bulbs are "balafire" bulbs, has a special filament and uses electromagnetism to make the filament "dance"

@aarongreenfield9038 5 күн бұрын

I used to take these things and connect them to a high voltage power supply, from one of those lightning globes for interesting/cool effect.

@zebo-the-fat 5 күн бұрын

Far more complex than I expected!

@wetryanycheesedotcom 5 күн бұрын

I love that your brain works like this. I'd have gone "huh, bulb broke" and thrown it out. You saw it and got out the spectrometer!

@mernokallat645 5 күн бұрын

You dont see argon glow because there is no positive column discharge here. Only negative glow around the cathode. Most of the light before warmup in a SOX lamp comes from the positive column discharge, which is more pinkish from argron and the area around the electrodes is more orange from neon.

@teopacheco9918 5 күн бұрын

We have one on our Home Altar down stairs that I have always curious about. It has been working scenes my Childhoods days. Now I'm 32 and it is still working 24 hours a day no switch install for turning it off

@Ancientreapers 5 күн бұрын

I have about a dozen of those bulbs in storage bought decades ago for a few decorative lamps. I have one that's still going after decades. But to be fair, that lamp the bulb is in is not used all that much. Only occasionally. Still maintains a very nice flame flicker looking pattern, distribution and brightness. No gas leakage either. I'm actually impressed with these bulbs.

@brainiac75 5 күн бұрын

The shown bulb is really old too. I can't remember when or where I bought it. Though it has been used very little too. With that said, they are surprisingly durable. Will outlast any fluorescent tube - maybe even most LEDs? And they don't mind vibrations, mechanical shocks (unless hard enough to break the glass of course), or getting turned on and off repeatedly many times. They are really rugged. Thanks for sharing!

@Ancientreapers 5 күн бұрын

@@brainiac75 Yeah they are pretty rugged. Well built. And you're welcome.

@eiew 5 күн бұрын

New Brainiac video dropped lets goooo

@brainiac75 5 күн бұрын

Yeah, as always in the last weekend of the month ;) Thanks for the early watch!

@ozzymandius666 5 күн бұрын

Charges tend to concentrate on pointy bits, could that also contribute to why the discharge starts at the end?

@Manne-Frede 5 күн бұрын

I remember in December of 2015 at Holstebro hospital i saw a decoration light bulb kinda like the one in your video except the one there made kinda a flame that travelled upwards and then nothing and again upwards and nothing. It took about a second to go from bottom to top. It had a color kinda like the one in your video. I have only seen that kind of bulb there. I remember that it was fascinating to just look at. I dont think it was led because the plate in the middle was black like the one in your video

@ylluminate 4 күн бұрын

There are other ways to explain this. You should look at Ionel Dinu's work with the aether and electrigen. Fascinating things and a solid movement towards fixing broken physics.

@OrganicGreens 5 күн бұрын

I really like your videos. Hope you have a great week.

@brainiac75 5 күн бұрын

Glad to hear, OrganicGreens. Much more videos to come. And a great weekend to you too!

@gamerduderb8059 5 күн бұрын

Interesting! I may not understand it all but still interesting!

@RICH_BMGO 4 күн бұрын

Nice ❤

@EgonSorensen 5 күн бұрын

Favorite NERD video creater - EXCELLENT!!! Thanks Brian, sharing is CARING about science and other things too :ø)

@brainiac75 5 күн бұрын

Thank YOU for watching my videos, Egon! Det er vigtigt for en niche-kanal som min :D Much more to come in the future.

@EgonSorensen 5 күн бұрын

@@brainiac75 - KZfaq er et super social media - og DU er BARE DEN BEDSTE til at formidle videnskab :ø) - Jeg er vild med når du udgiver nye videoer - og uanset hvad, så :ø) BRAINIAC75!!!!! Algorithm for the win! :ø) ... og faktisk så er det sandt! Dine videoer er super underholdende og oplysendede. Tak for at tage tid og energi for at 'educate' :ø)

@Mario4445d 4 күн бұрын

Brainiac75 is going to get a 473nm laser before GTA 6

@trinidad2099 5 күн бұрын

I feel that you could possibly fix this bulb using one of your large magnets, and a suitable high powered laser. Set up the bulb in a sturdy holder, place a strong magnet near it to deflect the electrode, then focus a strong laser on the electrode bonding wire and heat it to allow the deflection to become permanent. Would be fiddly (focusing through curved glass, mounting, laser power control), relatively dangerous (magnets, specular reflection risks), but would make for a really interesting bit of content!

@tomdchi12 5 күн бұрын

I’ve never heard anyone describe the light from low pressure sodium lamps as “lovely” before.

@voidnull9438 5 күн бұрын

😮 love your videos brainiac ❤

@brainiac75 5 күн бұрын

Glad you like them - and thanks for the very early watch and comment. Much more to come!

@geralddejong 19 сағат бұрын

Now I want to see a non-faulty one.

@GQuack 5 күн бұрын

While the video itself was interesting, the most interesting part was that I didn't even know that these kinds of lamps existed, besides the LED ones that mimic flickering flames. In any case, what I want to see is a working one of these, along with more experiments with it.

@DanielGBenesScienceShows 5 күн бұрын

@brainiac75 Great video! You should also look into the vintage ornamental gas discharge bulbs made by Auralux. They are similar to these but can have very complex scenes inside of them with parts that glow with different colors due to the color of the phosphors the different parts are coated with. We have quite a few of them in our collection including different colored flowers, Christmas and Halloween depictions, and even one with a Freemason symbol.

@jayglenn837 5 күн бұрын

What would happen if you ran DC power through it instead?

@Platypus_Warrior 5 күн бұрын

A comparison with a similar normal bulb would be nice since you have to replace it

@4dirt2racer0 5 күн бұрын

its probably better to either wait till the end, or do the patron thing early on in the video so u dont get ppl clicking away to another video early n u only getting a partial view for it

@vinnysworkshop 5 күн бұрын

Alec from Technology Connections did a video about this lamp a year and a half ago. He concluded that the unstable discharge was due to a coating on the lamp's electrodes being uneven, and when he tried using a high value resistor to limit the current to some small neon indicator bulbs. The result: a dim discharge but no flicker.

@wimwiddershins 5 күн бұрын

It would be interesting to vary the AC frequency and waveform into the bulb.

@johnrehwinkel7241 5 күн бұрын

Normally the inner surfaces are chemically treated to discourage the discharge from there (by increasing the work function of the surface).

@ThatOneWeeb420 3 күн бұрын

I've seen these as a kid over 10 years ago, it scared me that much I almost had a heart attack, apparently my parents installed it unannounced

@danyf3116 5 күн бұрын

The bulbs I always bought were doing the same. Top to bottom. I thought this was the norm! lol

@richgoza1956 16 сағат бұрын

I would like you to use that spectrometer in a sonoluminescence experiment. Look for helium.

@amanda_da_cat5981 4 күн бұрын

Can you show a working flicker flame bulb up close I'd love to see it!!!

@maz3808 5 күн бұрын

I love videos about lambs that are rarely seen or used by the public. Have you done a video about Deuterium Arc Lamps?

@lkahfi 5 күн бұрын

I wonder what your video has all danger included

@bpark10001 5 күн бұрын

Sometimes you can repair bad lamp by carefully beating it to bend the electrodes. if you shine light on the lamp, it changes the flickering pattern.

@DoctorOnkelap 5 күн бұрын

did you measure the spectrum of one of the other llmps that is not misbehaving? Perhaps they ffilled the defective one with only neon while the others have the expected neon/argon mixture...

@BartdeBoisblanc 5 күн бұрын

Brainiac the blub should react if you expose it to UV light and also radioactive sources.

@xubz 5 күн бұрын

Is the filament magnetic? Can you increase the gap slightly using magnets till the lamp works fine ?

@ingussilins6330 4 күн бұрын

Use direct current and see how dancing orange spot on electrode surface.

@hatake_kakashi7359 5 күн бұрын

Bernard, bring me my snacks and notebook. Classes have started.

@ripinskimoinskidoinski 2 күн бұрын

what do you use for spectroscopy? I searched your channel to see if you outlined the tool you used.

@dinitroacetylen 3 күн бұрын

I thought that the electrodes are magnetised and the Lorentz force pushes the discharge out of the space between them.

@echo6804 5 күн бұрын

Hey ! I was wondering, if you increase the power does it light completely ? Does it change the behaviour of the lamp ?

@echo6804 5 күн бұрын

I'd love to see another video about it ! Thanks for your videos:)

@pennyether8433 5 күн бұрын

Can you put something radioactive near it to test if it affects the path of the discharge?

@TomboRectify 5 күн бұрын

I'd like to see on the 1000 FPS camera how the neon glow goes if the supply is rectified and smooth DC instead of the AC. Or maybe higher or lower frequency AC.

@brainiac75 5 күн бұрын

Great suggestion. I will try to find a high-voltage DC source (or rectify mains electricity to DC). Higher or lower frequency AC at ~230V is trickier. Could be very interesting to examine though... Thanks for the early watch!

@TomboRectify 5 күн бұрын

VRF or Variable Frequency Drive would be the obvious choise to get a variable frequency AC source, but those are expensive. The poor man's version that I've done is to have an iron core transformer connected to a subwoofer amplifier to boost the voltage, and then have a signal generator app on a phone connected to the amp. So a subwoofer amp, and then the low voltage winding of the normal iron core transformer connected to it. The voltages are probably good to keep in mind. With 24VDC input to sub amp, you might want a 230VAC to 24VAC transformer and wire it the other way round (so it boosts the voltage and doesn't decrease it like it normally does)

@danielbrakenhoff2825 5 күн бұрын

@@brainiac75 what camera do you use for the 1000fps shorts?

@acceler9 5 күн бұрын

Sooo... What was the problem? Was it low neon levels, or perhaps a mild vacuum loss?

@96giternean79 2 күн бұрын

What spectrometer do you use?

@mimasweets 5 күн бұрын

How is it meant to look?

@mr_pckiller5258 5 күн бұрын

I have the opposite fault. Mine glows steadily on the electrode wires and the lower half of the "flame" and the top part sometimes flickers.

@zillboop4687 3 күн бұрын

Question, would exposure to a strong source of ionizing radiation change how that bulb would operate?

@dantevito1193 5 күн бұрын

Would it light up completely if you overvolt it a bit?

@brainiac75 5 күн бұрын

I think it is better to increase the current. Overvolting could cause a spark in stead of a glow discharge. But with the right voltage and current - just at the border of arcing/sparking - it should be possible to light up all of the electrodes. With that said, I think the shown lamp would light up in larger patches if provided with the nominal 240V. Come to think of it, I think my UPS can be set up to provide 240V AC... Definitely need to make a follow-up video or two for these lamps. Have ordered some more of them too :) Thanks for the early watch!

@BariumCobaltNitrog3n 4 күн бұрын

Well what is it SUPPOSED to look like?

@ThePaalanBoy 4 күн бұрын

I guess the one i have is also faulty then, i can't remember any of these patterns

@anon_y_mousse 3 күн бұрын

It's a shame that you can't reach inside the bulb and bend the tips back out and see if it fixes it. If you could cut it open and somehow refill it with neon, that'd be neat.

@chevyDboyMike 5 күн бұрын

I was expecting a repair or fix of the cathoids

@kaktus8958 2 күн бұрын

Please show it reacting to other sources, especially radiation ♡

@RodrigoM3llo 4 күн бұрын

I'd love to see it reacting to a nuclear explosion

@NicholasthefanMan 4 күн бұрын

0:50 what about epileptic seizures

@analogdesigner 5 күн бұрын

If the electrodes were driven with RF, the plasma would be stable.

@havocking9224 Күн бұрын

So......glitch in Matrix, that is bugged even more? 🤔🤔🤔

@techtinkerin 4 күн бұрын

Probably been dropped, try tapping it the other way to make the gap bigger.

@christian72141 4 күн бұрын

"the colour of the discharge is beautiful" :c

@Enderkruemel 5 күн бұрын

Maybe try to use magnets to bend the electrodes away from each other... Im not sure if this will be possible to do. Maybe using a strong laser to heat the contacts inside to deform them?

@crazyidiot4327 5 күн бұрын

Hello

@brainiac75 5 күн бұрын

Hi there. Thanks for the early watch :-D

@rriflemann308 4 күн бұрын

Your bulb possibly suffers from impact damage.

@Friedbrain11 5 күн бұрын

Ok...240V and 240Vrms are not the same. You need to fix your math. Otherwise, it is an interesting vid and the bulb electrodes being improper is what caused the problem.