Watching Veritasium's recent video gave me a new appreciation for the blue LED's invention, even though I had seen this video earlier.

@sumuduranathunga

2 ай бұрын

While I'm watching it, this is suggested

@islowclick

2 ай бұрын

@@sumuduranathungaSame

@rickintexas1584

2 ай бұрын

Me too. I saw the Nobel Prize award and read an article on it, but didn’t fully appreciate it until Veritasium’s lengthy video.

@matttheking1655

2 ай бұрын

Nakamura really changed the world!

@rz6354

2 ай бұрын

👍

i hate it when they show cooling towers as if they are pollution, THAT'S STEAMM!!!!

@matthew8153

5 жыл бұрын

BLUEGENE13 Growing up we called them cloud makers.

@dylan8736

5 жыл бұрын

Huge Vape Pipe.

@lawrencepatrick2486

5 жыл бұрын

Couldn't agree more. Somehow it's the poster child for anything bad.

@JACKRAIDEN97

5 жыл бұрын

Mega bong

@acerlmt

5 жыл бұрын

5:04 it's appears when he says about global warming!! Are you deaf?! -__-

My full respect, to this Japanese scientist, who spent a lot of his life, to develop and produce BLUE LED !!!! Amen.

@tanzaniteblueeye4805

4 жыл бұрын

Yes and now check here on youtube ;Beware the bluebeam!!!

@iancrossley6637

4 жыл бұрын

I'd guess he earned his PHD. Great job Shuji!

@unholy1771

4 жыл бұрын

The video was treating him unfairly. Belittling his person and attributing the achievement to everything except the man's brilliance

@kezziekz

3 жыл бұрын

Amen

@atheisthuman8108

Ай бұрын

His net worth is $1.3 million as of 2024! What a humble man who literally saved the planet!

1:54 “They don’t get hot.” -- It should be they don’t get as hot.

@smorrow

5 жыл бұрын

Yeah, somebody post that DIY Perks video.

@Albanez39

5 жыл бұрын

It has a different kind of hot. The heat is not produced by an incandescent filament, but by the electric current flowing in the wires and boards it uses to convert the voltage, amperage and so on. It might seem like the same thing, but it is not. The heat in incandescent lights is produced intentionally, because no heat = no light.

@OutdoorLCD

5 жыл бұрын

@@Albanez39 different type? Are you sure? The heat can be controlled thru heat sinking better, but same heat.

@user-neo71665

5 жыл бұрын

@@Albanez39 Heat is heat. The process that causes it might be different ( radiation, convection, conduction) but at the end of the day the heat caused is the exact same type of high temperature known as heat.

@MrGom3zone

5 жыл бұрын

He told the bulbs to settle down before they become overly angry.

i think pollution is the last thing on people's mind if they are burning wood for light

@dust7962

5 жыл бұрын

@Angel Guerra Yeah most if their country is cold and frozen. Global warming doesn't really seem like a bad idea to the Russians

@biplav32

5 жыл бұрын

@@dust7962 It will open up the arctic for them to drill.

@mintar59

5 жыл бұрын

Yeah but think of the health impacts of the smoke their fires must have. Less pollution because of fire-> fewer health problems -> more time and resources to go ahead and improve your country.

@mr2octavio

5 жыл бұрын

@Angel Guerra that's the most ignorant thing I've ever read, and if you are from the US take a look at your president stepping down from the Paris Accords for climate change

@jmcenanly1

5 жыл бұрын

If you have a choice between cleanly shining LEDs or something that produces smoke and soot, you'd go with the LEDs.

Fascinating. I'm glad he got the Nobel Prize for his wonderful contribution.

@8nayrb

5 жыл бұрын

split 3 ways and Nichia holds the patents so $333k for changing the world, as they say.

@8460437

5 жыл бұрын

So I assume he got his PhD.

@obelic71

5 жыл бұрын

@@8460437 who cares he has a nobelprize, that opens more doors 😉

@ktolwal

5 жыл бұрын

@Blind Squid u r a blither ing idiot

50 years ago I replaced all my lights with fluorescent ones. It saved 80% on the lighting costs and it improved the lighting simultaneously. A few years ago I replaced most of those with LED devices of different types. This halved the lighting costs again. The BIGGEST saving is that they don't object to being switched on and off so that many more rooms are left without light unless it is actually needed. Then there is the power saving on the TV and computer screens. A wonderful improvement to the quality of life and an improvement in efficiency simultaneously.

@PlanetIscandar

Жыл бұрын

Thank you for your joke "it improved the lighting". As for the supposed saving.. it's a long story...

@thatsawesome2060

2 ай бұрын

Similar to me except every time I get savings not long after the energy company increase their rate, I think I am looking to solar

Edison did not "invent" the light bulb. He perfected it and the vacuum pump necessary to remove the air from them.

@electronresonator8882

5 жыл бұрын

he did, the same way Elon Musk didn't invented all technology on Tesla cars, but got all the credit for it

@AUXdrone

5 жыл бұрын

Edison’s employees perfected it.

@spokev

5 жыл бұрын

True, and more to the point,@@AUXdrone

@leeanucha

5 жыл бұрын

Besides, Edison was an asshole. He killed many big animals just to get rid of his competitor, Tesla. I've heard.

@dissonanceparadiddle

5 жыл бұрын

His team of engineers perfected the design only for him to have them engineer a version that wouldn't last indefinitely like they could have. You gotta remember follow the money.

Wow! Kudos to all the Japanese scientists who made LEDs so much more practical and usable.

@PlanetIscandar

Жыл бұрын

So, there are still some people who believe in fairy tales as light bulbs don't last long and LEDs don't get hot and are supposedly harmless. At least they do know how harmful fluorescent lights are, which was the supposed clean solution that replaced the healthy light bulbs with their natural and truly harmless light. Fortunately, i have a large stock of traditional and ecological light bulbs that will provide me with healthy light for another 20 years.

@NolandC

10 ай бұрын

if LED save energy. why is my elecritcity bill the same as when as I had incandescent bulbs?

@ramakrishna7534

5 ай бұрын

Hi

@anthonycedricnavalta6726

2 ай бұрын

​@@NolandC inflation

@NolandC

2 ай бұрын

@@anthonycedricnavalta6726 More like greed.

"all the best stuff is made in Japan." - marty mcfly

@ezioauditore5616

5 жыл бұрын

someone who watched that movie, and for me thats the best movie

@spectre5757

5 жыл бұрын

Anime

@DjJooze

5 жыл бұрын

Made in China ®

@joshuabrown4858

5 жыл бұрын

That yota boi

@jannadrielcervo7753

5 жыл бұрын

Japan!? Great Scott! - Doc

The fact that you credit edison with the lightbulb already speaks to the quality of your research and information.

@Netlogic.

5 жыл бұрын

Wikipedia plus whatever he can remember from highschool and some old TLC documentaries, all thrown in a blender

@totalgej

5 жыл бұрын

Edison patented lightbulb. Also funded lots of the research for it. So if you want to credit anzone for the lightbulb, its Edison

@deanhall9292

5 жыл бұрын

Yes Texas Instruments......those "Fathers of Electronics", getting PhDs for reverse engineering Roswell tech.... Science , was infiltrated by the Sicentific Lazarroni at Academy of Sciences to rebutt Darwinism......but transistors,slicon chps, led's,fibre optics,lasers?......ask MJ12.(Detlev Bronk)

@millimike

4 жыл бұрын

When it is said that Thomas Edison created the light bulb what is meant is that he created the incadescant bulb that is still used today. It was the first commercially viable option. That is why he is credited with creating the light bulb because it was the first bulb available to everyone

That technology really came out of the blue. Those guys led the research quite well. Japan has some bright minds indeed.

@AnonYmous-kt8hi

5 жыл бұрын

agreed.. really illuminates the full spectrum of uses for LEDs.

@campkira

5 жыл бұрын

It been a while since the research for blue light...

@alexdiezg

5 жыл бұрын

3 sentences, 3 puns. Amazing.

@deepstariaenigmatica2601

3 жыл бұрын

@@alexdiezg mYbe 1 but how 3?

@alexdiezg

3 жыл бұрын

@@deepstariaenigmatica2601 blue, led & bright

"when Thomas Edison invented the lightbulb" Ah. So this is a video of fiction.

@atank

5 жыл бұрын

they also stated "global warming"

@johnlamarca9439

5 жыл бұрын

You are correct, but most people are not aware of Teslar and the truth... They were taught fake news history... But it is not fair to call this a fiction video... You can examine the content of almost any work and find a false fact in it...

@macmaniacal

5 жыл бұрын

@@johnlamarca9439 why is it so easy to see the flaws?

@darryljones3009

5 жыл бұрын

@@johnlamarca9439 It wasn't Tesla he stole it from, it was Joseph Swan.

@effiodiego

5 жыл бұрын

@@atank Oh I think you're confused. That part was true.

"Incandescent lights don't last long". Biggest understatement of the day. I don't miss my weekly routine of goung around the house changing light bulbs. And it was also dangerous as those bulbs were super fragile. LED lights are a win win technology. Best thing since sliced bread. Thank you Japanese scientist Nakamura.

@tyguy104

Ай бұрын

Exactly! I mean, incandescents; well I think we both know the fluorescents already defeated the incandescents anyway. Now the LEDs are defeating the fluroescents? Incandescents are a fossil of a light now anyway.

thank you for this video. Mr. Nakamura is exactly the kind of person we all should celebrate.

@WilliamWynn

5 жыл бұрын

His invention was great for humanity, he's kind of an ass as a person though.

@soaringvulture

5 жыл бұрын

@@WilliamWynn I'll take it. I hear Frank Sinatra wasn't a nice guy either. But the boy could sing.

@MrLiptonappletea93

4 жыл бұрын

Don’t forget Akasaki and Amano. They came up with the GaN to create blue LEDs first. Nakamura came up with different techniques to create better quality blue LEDs after they published their results.

@desiguy55

2 ай бұрын

yes those two did but with a tiniest fraction turning into blue light their research came to a dead end. it was Nakamurás brilliant research and technique that made the blue led a thousand times more bright that saved the day and revolutionized the led industry. despite huge opposition into his research from his own company. yet his own companies made billions while giving him a 77K reward a for all his work.@@MrLiptonappletea93

Why do these sorts of videos always include nuclear cooling towers in the montage of high greenhouse emission activities?? Nuclear is FAR better for the environment than coal and nat gas.

@kanderson5555

5 жыл бұрын

Cooling towers are used in all thermal power plants. That style of cooling tower is usually associated with nuclear plants because the design is more modern and expensive so its only used with newer and expensive tech like nuclear or "clean" coal plants The shot of the cooling towers is probably a coal plant as I think there are ramps leading up in the main buildings, those would be the conveyer belts feeding the furnace with coal.

@johnfordice5763

5 жыл бұрын

@@kanderson5555 I didn't know that! I always associated tall narrow stacks with coal cooling towers. Thanks!

@ketch7420

5 жыл бұрын

These nuclear towers emit water vapor though?

@pierreuntel1970

5 жыл бұрын

Because it have a large "smoke" emission which will make people think it's bad so they could protest against it

@ketch7420

5 жыл бұрын

@@pierreuntel1970 They believe everything they see?

"LEDs dont get hot like incandescent light." 100W LED Chip: Hold my heatsink.

@chrisbraid2907

4 жыл бұрын

They don’t, they get hot like LEDs. Cob lights are notoriously hot when running bright ....

Just wanted to point out that the massive 'chimneys' are actually cooling stacks, they don't emit pollutants :)

@cleveland2286

5 жыл бұрын

Yeah I hate it when thats used to represent pollution, It's just steam which is something most people don't know

@helcurt2509

5 жыл бұрын

The "steam" or hot water vapour aren't as harmless as they seem. Yeah they might not be pollutants but they do contribute to heating of environment, raising atmospheric temperature around.

@paulanderson79

5 жыл бұрын

@@helcurt2509 What do you suggest we do instead? We can't just switch of the world's power grids.

@sparky1331

5 жыл бұрын

@@paulanderson79 North Korea Will Switch Off Our Power Grid.

@paulanderson79

5 жыл бұрын

@@sparky1331 No it won't. KJU doesn't have thermonuclear weapons. Nor does anyone else in my opinion. The physics of (hydrogen) fusion bombs just doesn't stack up for me. To be honest the biggest terrorist target in any country is the water supply. That has to be open to the sky.

"...and with global warming due to Human activity creating catastrophic effects on the planet..." *Shows nuclear power plant which produces steam* 🤦‍♂️

@Gnometower

5 жыл бұрын

It's a coal power plant.

@davidgrover5996

5 жыл бұрын

Gnometower, Those are cooling towers what is coming out the top is water vapor/steam.

@Gnometower

5 жыл бұрын

@@davidgrover5996 Yes I know. It's not a nuclear power plant though.

@se7en518

5 жыл бұрын

and nuclear waste 🤦‍♂️

@michaeltaylors2456

5 жыл бұрын

Se7en .. don’t worry , ask Galen Windsor

Should've included a comment as to how having a blue LED enables full spectrum lighting. For those curious: blue light is used to stimulate a yellow phosphor, and the combined light can be tuned to any color temperature of white.

@loopje

Жыл бұрын

they did…

also Edison didn't invent the lightbulb. His team improved on it.

@pawneko5248

5 жыл бұрын

He business man he sucking di i mean money.

@Albanez39

5 жыл бұрын

Same for the film camera, telephone and dozens of other inventions that people credit him for. He was just a businessmen that was able to deceive his scientists and inventors into signing contracts that forced them to renounce to the credit of their inventions...

@electronresonator8882

5 жыл бұрын

do you think Elon Musk invented all technology on Tesla cars and spaceX?, then why people keep calling Elon as genius?

@yt-sh

5 жыл бұрын

@@electronresonator8882 Because he manages 3 global level companies while reviewning memes

@avid0g

5 жыл бұрын

@@electronresonator8882 Because he privately funded Tesla as a startup and personallypl brought in the man that advanced the 18650 cell into a safe vehicle battery.

I didn't know that creating blue LEDs had been so difficult. But clearly, you'd need all three primary colors to generate full-color displays.

Fascinating video. Most people including myself never question where technology comes from. We just walk into a store and buy products, electronics take hundreds of hours to develop & build

@dijoxx

5 жыл бұрын

More like hundreds of thousands

@robertpryor7225

5 жыл бұрын

More more like fractions of millions

When Edison stole the light bulb

@Albanez39

5 жыл бұрын

And the film camera, and the telephone, and lots of other things.

@electronresonator8882

5 жыл бұрын

he saw the opportunity just like Steve Jobs

@my3dviews

5 жыл бұрын

@@Albanez39 The telephone was invented by Alexander Graham Bell. Edison never claimed to have invented that.

@arthar8435

5 жыл бұрын

nikola tesla

@Albanez39

5 жыл бұрын

@@my3dviews His scientists improved the clarity by using a carbon microphone. I've seen others online credit Edison for all kinds of things, even the telephone.

Excellent ! The world owes the scientists a big thank you.

ONE MISTAKE ,LED'S DO GET HOT

@lsudan2670

5 жыл бұрын

depends on circumstances....

@Detroit8V92tta

5 жыл бұрын

@@lsudan2670 no they get hot under any circumstances. Light is heat.

@lsudan2670

5 жыл бұрын

@@Detroit8V92tta ok I give up 😉

@Detroit8V92tta

5 жыл бұрын

@@lsudan2670 never give up. 👍

@darrenchriest300

5 жыл бұрын

One mistake? There were dozens of instances of false information and glaring inaccuracies in this video.

LED bulbs don't last 25 times longer even though the LEDs themselves theoretically could. The internal circuitry in LED bulbs that convert the line voltage burn out long before the LEDs do and sometimes even faster than an incandescent bulb.

@Gazgit555

5 жыл бұрын

thats why led's are run on alot less current than they can .then they can run for ages .theres also flip chips that has no bonding wire

@Kpopzoom

5 жыл бұрын

Usually the Capacitors in the power supplies blow first especially in the cheap ones.

@westelaudio943

5 жыл бұрын

Most room lighting LED bulbs fail after 2-5 years due to bond wire problems, they crack from thermal expansion and contraction. Not the internal curcuitry. Indicator LEDs with low power can last extremely long though.

@yadunandanks8781

5 жыл бұрын

Yeah the cheaper ones!!

@Kpopzoom

5 жыл бұрын

If an LEDs temperature goes over 90deg they can suffer degradation which results in a lower light output.

This video went into great detail on how the blue LED was invented and spent 30 seconds telling how it actually changed the world.

It's unfortunate that they left out the most important part of what makes a "white" LED. This video seems to imply that you need three LEDs - Red, Green and Blue to make white light but in truth almost no white LED works this way. Instead, white LEDs are very similar to fluorescent tube lights. A short wavelength blue or near-UV LED is surrounded with a phosphor that absorbs most of the blue light and readmits is across multiple wavelengths, creating a rather broad, flat spectrum of light. Fluorescent tubes work largely the same way: mercury is stimulated to emit UV light which is then absorbed by the phosphors coating the inside of the glass tube, emitting a broader white(ish) light.

@Abitibidoug

2 ай бұрын

I thought the same thing. Do those near UV LEDs also use gallium nitride?

I remember when the blue LED was first invented. Within a couple years every settop device had these annoyingly bright blue lights, and excessive numbers of them.

@nitishthakur9208

Жыл бұрын

First one actual blue led is very costly and even today maximum blue led is not actual they are generated from color mixing

Came here from Veritasium

@ayceu

2 ай бұрын

After watching the Veritasium video it felt like this video was treating Nakamura unfairly.

Interesting documentary! But don’t use cooling towers as an illustration of pollution : it’s just plain clouds coming out of them ...

@acerlmt

5 жыл бұрын

it's appears when he says about global warming!! Are you deaf?! -__-

@curtisbarkes6271

5 жыл бұрын

LOL! You said, "just plain clouds"!! That's the best explanation of steam from a cooling tower. EVER!!

@fitzmorrispr

5 жыл бұрын

Alex Nevi ...and that's better? How, exactly? Nuclear energy is not a contributor to global warming either.

@se7en518

5 жыл бұрын

@@fitzmorrispr Because only Nuclear Energy uses cooling towers...

@ianzenda5944

5 жыл бұрын

Se7en the cooling towers aren’t the problem on coal plants either, the problem with coal plants is the other towers spewing toxic smoke out of the tops from burning coal

That Japanese Scientist Prof. Nakamura is from UCSB, where I graduated from!!! So proud of my Alma Mater! Hail UCSB!!!

@mindhormone

4 жыл бұрын

Hail Hydra!

Showing Cooling Tower as Toxic... lol

@jetso2000

4 жыл бұрын

Water vapor contributes to climate change

@richardhead8264

4 жыл бұрын

@@jetso2000 Yup, it makes rain.

@mkg2002

4 жыл бұрын

The vapor contributes to greenhouse gas dude. The excessive heat is released in a huge scale to the atmosphere

@qyahb3822

4 жыл бұрын

You dont know what you are talking about, it exposed your stupidity

5:03 that's condensation, not pollution... stop making nuclear something bad, when it's clearly it one of the best clean energy sources

@yeahnoway111

5 жыл бұрын

that was actually a coal plant not nuclear

@9adrda

5 жыл бұрын

My bad! I should've seen this! Thanks for mentioning it.

@Ddub1083

4 жыл бұрын

He didnt say anything about "pollution" he was talking about greenhouse gasses.... water vapor is the largest contributor to greenhouse gasses. Come back when you know what youre talking about.

Why is it I never heard of this man and his involvement in inventing the LED bulbs? I remember over 30 years ago trying to tell people about them and the first time I bought one from Ccraine company in Fortuna California... I paid over twelve dollars for a flashlight you can get now for 99 cents anywhere... Someone should write something about this invention...

Blue da ba dee truly had an impact

@knockhello2604

5 жыл бұрын

tf

@krashd

5 жыл бұрын

I am blue da ba dee, I am blue L E D..

Thank you Japan 🇯🇵 🙏🏼

I’ve been using nichia component leds for years and had no idea of their history.... thanks for the video

Anyone ever notice that the bright blue ones for christmas lights look blurry or out of focus when they are on. Especially in the dark.

@GRAHAMAUS

5 жыл бұрын

That's your eyes' chromatic aberration causing that.

@paulanderson79

5 жыл бұрын

@@GRAHAMAUS Correct. The blue receptors are apparently further 'back' on the retina which means the blue light focuses less reliably.

@soaringvulture

5 жыл бұрын

That's just you dude. Stay off the eggnog.

@paulanderson79

5 жыл бұрын

@@soaringvulture genuinely, there is an anatomical reason for this. I believe as well that the blue receptors only make up about ten percent of the total.

They failed to mention that coating the blue led with phosphorus is what gives us the white light LEDs of today.

@whickervision742

5 жыл бұрын

PHOSPHORS, not phosphorous.

I recall when the first "Blue LEDs were out", as a pilot I thought the missing color for the airport's taxiway lights... currently LEDs are used in approach light systems, runways and taxiways. LEDs are cool ;)

Back in 2014, I was quite surprised to know someone was awarded a Nobel prize for inventing blue LEDs! I had this idea that, that tech was already age old or must have flown under the radar of the committee for the late recognition.

One thing you're wrong about is that LEDs didn't have use before the 90s. The disc storage formats are a result of LED technology

@whickervision742

5 жыл бұрын

You're confusing lasers with LED's when talking about optical disc storage. But yes, visible LED's were used as indicator lights, signage, and darkroom lighting, to name a few uses, shortly after their invention.

5:04 - Talking about global warming, shows water vapour and not any sort of pollutant.

@samuelthornton9179

5 жыл бұрын

It a coal power station not nuclear

@V1Pin

4 жыл бұрын

Water vapor is classified as a green house gas!

@V1Pin

4 жыл бұрын

@Sir Hoodie stop adding to it .

@V1Pin

4 жыл бұрын

@Sir Hoodie Don't increase green house gases . Green house gases contribute to global warming and climate change. Imminent doom. Solution: dont add to the green house gases.

@V1Pin

4 жыл бұрын

@Sir Hoodie why? you cannot put 2 and 2 together? Statement one : green house gases contribute to global warming. Statement two : water vapor is a green house gas. Oh no! Show me a study linking everything!!

Very well put together, I will use some of this within my Lighting Course

Great job linking the science with history!

Smartphone, TVs, Computers, iPads. Pick the odd one out. iPad is a brand, not a device category.

I love LED light. I think it's wonderful.

here from recommended from veritasium video on blue LEDs and nakamura.

For LED bulbs and flashlights, you don't need red and green LEDs to create white light. What Nichia did to create the first white LED for lighting was to cover a (then) powerful blue LED with phosphors to convert much of the blue light to red and green. Red+green+blue=white. Even so, manufacturers didn't always get the formula exactly right, so many early "white" LEDs ended up with a bluish or greenish tint to them. This video is so incomplete.

this very blue light is known to increase strain on the eye, in case of the blue light being emitted from our smartphone displays. hence we use a yelowish blue-light filter. back to the basics!

@kercchan3307

5 жыл бұрын

blue light also comes from the sun, without blue you cannot produce white light. I despise those sickly yellow dim bulbs

More energy is wasted by the overuse of LED's. If we were talking about replacing every incandescent lightbulb with a LED one, that would save energy. LED's save energy, but the overuse of them for decorative, landscaping, and luxury purposes are defeating that purpose.

@jerryspann8713

5 жыл бұрын

Including the standby LEDs on televisions, stereo receivers, and other electronic devices.

Thank you for this interesting and informative video.

Atleast here in Mumbai, India....Tungsten bulb lasts long than the new CFL and LED bulbs. The CFL led widely available here for years are cheap with short life. Seems Tungsten were built well. And people here are actually spending more on CFL led bulbs than the Tungsten to save electricity bills.

And now that there are 99 CRI LEDs, there is literally no reason not to switch

"Edison invented Lightbulb" , beg your pardon ?!

Hi there! I understand that in the end of the video, it was focused on showing the environmental effect of migrating to LED in the developing countries. But it also should have been mentioned that a lot of people die for burning wood or coal inside their homes. I think the impact of saving those lives has an important impact too.

@Abitibidoug

2 ай бұрын

Plus they don't have to gather wood for those LED lights.

Things we just take for granted had literal decades pun into it

1:54 "LEDs don't get hot" - This isn't completely accurate. While older low power LEDs didn't get hot, modern high power LEDs get very hot, to the point where they will destroy themselves without proper thermal management devices like heat sinks. Thermal failure is actually the most common cause of premature failure for most modern LED fixtures.

@Rainbow__cookie

5 жыл бұрын

Yeah bright leds get hot very Bright leds

@L1m3r

5 жыл бұрын

It's not accurate at all. Older low power LEDs get even "hotter" in relative terms than modern ones because the were less efficient and converted more of the supplied energy to heat.

@splewy

5 жыл бұрын

L1m3r I think they were probably referring to 5mm thru hole LED or low current SMDs that have existed for decades. Those are so low powered (Typically less than 0.1 watts) that they generated almost no heat. Those were only ever really used for indication or decorative purposes though, since their light output was minuscule. The more powerful modern LEDs that are being used to replace incandescent bulbs produce tons of heat.

EDISON DID NOT INVENT THE LIGHT BULB

@cmdrw9855

5 жыл бұрын

Correct, he invented only the shape of the bulb

@CaedenV

5 жыл бұрын

@@cmdrw9855 And putting it in a vacuum tube, and making it so they don't burn buildings down 100% of the time. I don't understand why people get so upset over this? Like most inventions, Edison took previous work and improved upon it, marketed it, and made it a 'normal' product. The idea that someone else should get credit for essentially putting an electrical fire in place of a gas lamp seems a bit silly.

@FUnzzies1

5 жыл бұрын

@@CaedenV but have his engineers reeeeee

Another Example How Determination and Strong Will-power Can Make Great Discoveries That Can Make Life Better.

The one thing that damages incandescent lightbulbs is the turning on and turning off phase if the lightbulb with State on, it will remain on for years because in New York City in a fire station, there is a incandescent lightbulb that has been burning since 1905 and it still is going today and I believe there is a webpage and a web camera devoted to it😊

Edison didn't invent the lightbulb he bought the patent and perfected the filament

0:50 "After Thomas Edison invented the lightbulb" Me: Okay bu-bye

@LuisCarlos-kp6jq

5 жыл бұрын

they lost me at the same point...

@se7en518

5 жыл бұрын

cool story bro

@AuH2O

5 жыл бұрын

You won't be missed! Buh-bye you winy little Tesla-loving bitch!

I learned about this while taking the SAT and it really interested me

0:06 those are LCD screens. Not LED screens. They are simply backlit with LEDs but the LCD builds the picture. We need to end this misnaming of screens since it only causes confusion with genuine LED screens like the screens you see in sports stadiums or the new Las Vegas sphere which uses LED screens.

GaN: Exists *Shuji Nakamura: I'm about to give this man a career!*

I hope he was well rewarded for his invention.

You can spot the youth of the reporter and his crew because none of them realized the TV graphic was upside down. :P But quibbles aside, this was a fabulous report and quite fascinating. I hope Bloomie makes more like it. Thanks, everybody! Cheers.

> *plays a clip in the background at **4:04** where you can hear "neecheeya"* > *still says "necheeuh"*

"_Incandecent light bulbs don't last long.._" _Hold my beer_ said the 110 year old lightbulb still in use. Planned obsolescence, mate.

@thejuul8718

4 жыл бұрын

The Firehouse lightbulb documentary. The first example of planned obsolescence!

@johnrubensaragi4125

4 жыл бұрын

...compared to LEDs

@thelittlestmig3394

4 жыл бұрын

@@johnrubensaragi4125 Even if we go with fabled 100 000 hour LED bulbs, that's just mere 11 years. Shorter lifetime to early bulbs _by order of magnitude_.. Aand you can't get those anymore. When you look at commercially available led bulbs, you'll find significantly shorter lifespans these days.

@deepstariaenigmatica2601

3 жыл бұрын

@@thelittlestmig3394 they're not power efficient and not exactly cheap. it's a multi factorial competition. there's a reason why LED's are more successful incandescent

0:52 yeeez.. why do people keep thinking TD invented the light bulb?...

@samuelthornton9179

5 жыл бұрын

It a converal subject and would need more time to explain it.

The writer should have mentioned the controversy regarding the patent for blue LED, and how it became a lightning rod within Japan for better treatment of researchers. For inventing the world changing blue LED, the Nichia Corporation only gave Nakamura the inventor a bonus of $10,000.

@Ddub1083

4 жыл бұрын

.... plus his salary. Your salary is partially paid in exchange for you agreeing to assign all rights to anything you invent to the company. The bonus is just to get some cash in your hand so you dont change your mind at the last second... but if you are employed as a researcher, your salary is in exchange for your IP.

such a great and informative video. cheers

Jokes on you, I already know the story of the blue led. Thanks LGR

@LGR

5 жыл бұрын

👍

@deepstariaenigmatica2601

3 жыл бұрын

@@LGR username checks out lmao

For the record, Thomas Edison did not invent the light bulb, he was the first to devise a process for successfully mass manufacturing the light bulb.

@avid0g

5 жыл бұрын

Edison patented the glass-on-wire seal with a glass pipette to draw vacuum, a cheap limited-life carbon filament and the "Edison" threaded bulb base.

At 4:24 there is a photo of an iPhone (an older one) that uses an LCD not LED screen, otherwise, very interesting video and I am very happy to see those scientists got the recognition they deserved.

1:01 They are designed to not last long so it makes people regularly buy more. They are easy to build to never burn out, but then you would never get repeat business.

Guess I'm getting old, but could you please turn the music down, I can't listen! :D

LEDs don't get hot? Well there goes your credibility.

@gabrielbalsa1843

5 жыл бұрын

LEDs get hot, due to current flow. However, it's way different from incandescent light, which uses temperature to emit light via radiation. Instead of LEDs that use photon emission via semiconductor potentials.

@TheSolongsidekick

5 жыл бұрын

@@gabrielbalsa1843 I know that, but it's not relevant to whether LEDs get hot or not. They do.

Literally changed the world

Mind blowing,very informative

who else just watched veritasiums new video?

"Electric bulbs don't last long" - and we all know why

thanks guys for your effort :)

There were dim blue LEDs prior to Nichia's. HP and Siemens both had Silicon Carbide versions in 1985 (they showed them at one of the electronic conventions in San Francisco that year). They were nowhere near as bright and efficient as what we have now, but even the first red ones were pretty bad.

Tablets not "ipads" please. Ipad is a brand

@matthew8153

5 жыл бұрын

Becoming Vincent What can you expect from a video that presents “greenhouse gasses” as real?

@vj8452

5 жыл бұрын

Matthew well, it is real.

@matthew8153

5 жыл бұрын

Zenzler Um...no actually. The amount of carbon in the air is determined by the average temperature, not the other way around. And the temperature is controlled by the giant fusion reaction in the sky.

@RileyGoss

5 жыл бұрын

@@matthew8153 This is a load of barnacles....

@tmded3368

5 жыл бұрын

@@matthew8153 sources?

5:04... why did you use nuclear power plants as a B reel for pollution? its fucking steam mate

These Japanese are brilliant and hard working people. Thumbs up!

A great story about innovation and persistence.

You said Edison invented the lightbulb now I have trouble believing the other things you have said.

@LDSRaichu

4 жыл бұрын

Many people worked on inventing the light bulb

Whole world: can't create blue led... it's too hard 😭 Shuji Nakamura: hold my saki

@Albanez39

5 жыл бұрын

sake* :P

@TsunaXZ

5 жыл бұрын

There's always be an asian better than you

Not a word about the harmful effects of blue light on health like damaging eyes in the long term and increases visual fatigue related to prolonged use of digital devices .

Nice video, but three things: 1. LEDs can actually get hot, especially the high power LEDs, so the statement at 1:54 is just plainly wrong. 2. Try to sum up both the pros *AND* cons of LED lighting; especially photobiological effects of LEDs are noteworthy on the 'con side'. 3. The cooling towers of 5:04 have nothing to do with air pollution, since it's water vapor coming out.

For god's sake. Edison didnt invent light bulb

@electronresonator8882

5 жыл бұрын

he saw the opportunity just like Steve Jobs

@Johnny.Picklez

5 жыл бұрын

Still made a better version and deserves credit FOR THAT. Tesla does still need credit however

@my3dviews

5 жыл бұрын

@@Johnny.Picklez Tesla? Since when. He is the inventor of alternating current, not the light bulb.

@Ginkoman2

5 жыл бұрын

wtf has tesla to do with lightbulbs? stupid tesla fanboys all over the internet nowadays. its swan ho probably invented the modern lighbulb

@TsunaXZ

5 жыл бұрын

@@Ginkoman2 He just mentions the company and how he's a fanboy?

Thomas Edison did not invent the light bulb, he improved Swan’s design

the blue light - which makes up awake the whole night !

thanks to Nakamura, now I can have all the RGB LEDs i want in my custom-made PC!!

@cruzmatt22

5 жыл бұрын

Your pc is now 12 times faster. It'll go even faster if you add racing stripes

thank you japanese people