You are more transparent than you think - Sajan Saini

Discover how scientists are using light and integrated photonics technology to create medical devices that can diagnose illness.
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It’s an increasingly common sight in hospitals around the world: a nurse measures our height, weight, blood pressure, and attaches a glowing plastic clip to our finger. Suddenly, a digital screen reads out the oxygen level in our bloodstream. How did that happen? Sajan Saini shows how pairing light with integrated photonics is leading to new medical technologies and less invasive diagnostic tools.
Lesson by Sajan Saini, directed by Artrake Studio.
Learn more about integrated photonics: aimphotonics.a...
Learn how integrated photonic chips are made: www.aimphotoni...
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[@hsryu5569]

Is it just me or is Ted Ed uploading more frequently? Which is an amazing thing because it means I learn even more amazing things.

[@TEDEd]

Hi Hyun Seok Ryu! Thanks for the kind compliment! We actually upload new videos 2 to 3 times per week, 51 weeks out of the year. :) The best way to make sure you don't miss a video is to turn on notifications by clicking on the bell.

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@@TEDEd I've already pressed the bell notification way before! :)

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Yes

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Mashed_Potatoes Yes

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3:37 **little girl picks up coin from ground** **stares at it** **licks it**

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Girl: oh ots not candy

[@iwillstealallyourcookies1873]

girl: *proceeds to swallow it*

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@@iwillstealallyourcookies1873 girl:oh its not drink

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@@iwillstealallyourcookies1873 food:im i joke to you

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[@bowenjudd1028]

When I read the title, I thought, "Physically, or socially?"

[@LapizLazuly]

Both?

[@infinite5540]

Same! I don't think any of us are as figuratively transparent as we think.

[@gaurimenon2187]

literally...I guess

[@DagneZand]

Same

[@gamer-oh9nu]

My GF is so transparent, it’s almost as if she doesn’t exist

[@thedudethatneveruploads2617]

That's literally the joke...

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Boi do I love your username

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ouch

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The chill pixel r/ihavereddit

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I Love Ted Ed it makes me excited to learn 🙂👌

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Same with me!

[@Iam_kek]

Unlike the school system

[@aaronsam4918]

@@Alexa-ot6fo same

[@stw5890]

A perfectly (non meme) comment Its perfectly original

[@Skribbly1]

@@stw5890 of course this is original it was his/her opinion

[@mechanicalmove1732]

Me: *sees thumbnail text* Me: [visible confusion]

[@Sm1leyFaCe]

MechanicalMove 1 lol

[@bluestareverything9716]

Lol

[@AnOrdinaryIndian69]

You are transparent

[@capertillar4634]

[transparent confusion]

[@dat1pengu1n]

Humans See-through Are more Than they look

[@scmontgomery]

Thanks for another awesome video. I absolutely love your animations!

[@scmontgomery]

@Snokkie Smith Thanks for the correction

[@chrismesogitis9310]

At 4:30 there is an illusion. Some circles appear like polygons!

[@ghostderazgriz]

They all look like circles to me.

[@hellothere9791]

I see it! That’s so cool.

[@user-km5ok4gt6v]

So I’m not the only one who sees that 😅😅😅

[@lonestarr1490]

@@ghostderazgriz Focus on one pair of rings. The others in your near peripheral will appear slightly polygonal in shape.

[@javieralejandrotrianapaz6343]

the culprit its your peripherical vision

[@philipseven9215]

I really thought this refers to the deeper meaning of being "transparent" actually. Turns out it's completely literal and scientific and I'm here for it. It's TED-Ed!

[@stormysamreen7062]

Damn, that quote in the beginning was deep af.

[@regxz]

I had to restart the video to fully grasp it.. The more you know, the more you realize you don't know... Impressive wording from Einstein..

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I've started to think that ignorance is often the happier route....

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Holy fish moly, I love this channel. Education for the win.

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*yes*

[@leenasaleh5427]

I’m a Biomedical Engineer and I am very pleased with this video! It is actually very informative and I’ve learned something new! Thank you for this great content

[@karlsan6397]

Ted ed: *Talks about breathing* Me: *becomes conscious about my own breathing*

[@readoesstuff8171]

Karl Luigi Santos well thanks, i was just over that

[@frogk694]

Its to learn the ways of the hamon

[@truth-12345.]

Its to learn breathing techniques.

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because of you i’m now breathing manually

[@PancakeTheKat]

That happens to me when someone says, or I think about breathing.

[@koobokobe2574]

3:35 **notices penny on the ground** Oh, it's my lucky day! **LICKS IT**

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That is my favorite snack bruh!

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@@loveydoveydoll4 Aw, hepatitis c, not so lucky of a day.

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[BEE-BEEP!] *HEPATITIS C*

[@AnOrdinaryIndian69]

Lucky coin! Let's lick it It will give more luck

[@ryanyuan9592]

Girl: Oes noes is not drink

[@debasmitachakraborty5883]

I am studying biochemistry so this video is very informative for me thank you ted- ed for this .....love from INDIA...🤗😊

[@Arthas30000]

When he said put a flashlight to your thumb, I actually paused the video on my phone, turned on flashlight, and tested it.

[@havenparks]

Very important question. Can you see your bones in your fingers?

[@havenparks]

I looked pictures up and most if not all pictures showing what I wanted you couldn't see, like, bones? Or maybe those one things are bones but they look like they're the veins but WHAT.

[@havenparks]

I guess my bones are too close to the skin to see them compared to the skin but it's freaking me out because I would think that I would be able to see my BONES.

[@firefly245]

Me too!

[@AlexThePharaoh]

Yea me to 😂

[@BuddyL]

QUESTION: could these saliva💧 read-outs give accurate blood-sugar readings, thus removing the need for diabetics to draw blood on a DAILY basis?

[@frostfury7566]

Hopefully one day in the future we maybe able to do that, right now we have many other beautiful technology like micro needle etc.

[@kirtil5177]

i think having blood in your saliva is a whole other problem...

[@wonjaechoi4714]

Maybe.

[@suntzu2102]

TedEd astounds yet again! #TedEd-at-its-best!

[@pityfun2698]

Hitanshu Jarwani fake

[@aentropy]

I love TED-Ed videos not only for the animations but mainly for the useful knowledge it gives,

[@vanshika9920]

Upon reading the title I thought that it would be a video exploring the psychological tranparency of the human mind and our habits and how we are actually more readable/predictable than we like to think.

[@stormysamreen7062]

The narrator's voice is so good, I'd hear him talk about anything.

[@nairmanish]

Thanks for explaining stuff like these in such a simple and interesting way!☺

[@mario10311]

The 'fountain of youth' is more likely a wavelength than a liquid :)

[@kittycat-sc7je]

Your wall is more see through than you think ;)

[@truth-12345.]

This is why we have to support scientists, inventors and doctors more.

[@sargunbhatti9038]

0:05 Saw the quote and loved the video instantly. It is my new mantra now by the way. Love your hard work and BEAUTIFUL animations. My god they are some serious business.

[@tanuja3858]

I wrote answers in my exam from the analysis of one of your videos.. 😂

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I have done this too!😂😅

[@thisisarjunbutwhythehellar6188]

She didn't replied😂😂😂😂

[@chelseaezibe4765]

Should you be admitting that?

[@nairmanish]

😂😂😂

[@thisisarjunbutwhythehellar6188]

We are Indians Chelsea..... you won't understand....

[@StoriesThatPop]

I wish we had videos like this when I was a kid. I might've grasped science a bit better. Very cool.

[@010adityakapoor6]

Wow I have never seen any video after 1 minute of its upload

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Know Science same

[@abhinayjat461]

When somebody asks - would you like to have an ice cream Me: 3:10

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Abhinay Jat lel

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@@lolyankovic6952 lol was better You made me to search meaning of lel on Google

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Abhinay Jat But that is not you so your comment doesn’t make sense

[@angelvu]

The Smart I’m actually confused rn

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Abhinay Jat Lol lel is a derivative of lol

[@tagrisaj3344]

Ted Ed makes learning so much easier because it shows fun visuals that help you understand of trying to explain a concept with no examples.

[@haroonq2456]

Thanks for another awesome video. I absolutely love you animations!

[@mosieneakngen126]

This is so cool!!! This channel’s videos are always so fascinating and intriguing. Keep up the great work 😁😁😁😍

[@sharpshark1158]

Integreted Photonics, gotta love it.

[@AnOrdinaryIndian69]

English is not my First language but it explains everything

[@russochish2579]

Thanks to you, i can know about the world around me, and my body too. Thanks a lot!! Love the rock and roll guy playing the guitar!!🎸

[@VeralBoni]

That sad feeling when you can’t relate to the pulse oximeter experience coz your hospital has none. But great video!

[@tonicrvnts]

Maybe the condition you went to the hospital for does not require your oxygen level 🙄

[@synthvault451]

@@tonicrvnts Through my experience, every time you go to the hospital you have to know the oxygen level before doing anything else on the hospital.

[@paulgarcia2887]

When testing nuclear bombs the light emitted was so strong that you could see your bones

[@queensaharaice7376]

Wow really?? That's freaking crazy!

[@frederickherz1911]

Ouch. I think I know what you mean

[@hanzadriannervez6584]

@@frederickherz1911 it means dead

[@AlejandroBravo0]

Someone tell that girl not to lick things from the floor

[@abhiramagorti1803]

@TED-Ed Can we have more lessons on Integrated Photonics ? I loved the series a lot...........

[@ananya.a04]

This is....mind blowing and informative. Thank you Ted-Ed! Please keep making more videos like this! ❤️🇮🇳😊

[@joshuafua1133]

I love the animations as well as the narrator.

[@truthboom]

imagine a supercomputer successfully simulate our history in 99.99% accuracy

[@HarmonyStar]

Yess! I learn so much from these videos. If TED-Ed wasn't around I wouldn't have as much knowledge as I have now, haha!

[@maxi979]

I don,t know how but I already know our bodys are transparent.

[@joshuafua1133]

I learned more from this channel than the 14 years i wasted on school.

[@alicehellman8445]

Doctors visits are so serious. We should really *lighten* up

[@gigglysamentz2021]

OMG that is amazing!!

[@flargarbason1740]

Well it’s more about how a Pulse Oximeter works.

[@veryberry39]

"I just picked this chip up off the sidewalk. Hmm...maybe I'll lick it."

[@gingerbro9323]

Love your animations! They are so great!

[@Kirsten_is_cursed10]

My makeup shade is called “translucent” and I can see all my veins through my skin, so yeah makes sense.

[@RadCommieGamer]

Wow! This is some crazy shenanigans! Love it!

[@PS3Gamer2912]

I literally just had a question about this in my A level Physics Exam earlier today :D

[@josiahtaylor2471]

wow really that must be tough. I had my alevel physics a few weeks ago and we didnt have amy hard medical imaging questions

[@MC_lupin]

Lab-on-a-chip is quite the niche knowledge to include Well done in keeping up with the times 👍

[@megawave79]

Cool I can see veins or blood vessels in my fingers from this or whatever they’re called

[@Fatima-rs6bv]

It amazes me how we are inventing these things. Who knows what the future will be like? Things like these sometime terrify me of what humans can do

[@thomas_arun]

I am now more curious than I've ever been

[@Adam-wo9ol]

I was expecting a video on behavioral psychology and unconscious visual cues that can expose your mood and emotions, but this works too.

[@kiaroscyuro]

Learned more from this than from 16 weeks of my photonics class

[@usama57926]

wow very nice explanation

[@Stevench22]

This should be the standard for education. Petition to make TedEd a requirement for schools!

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I freakin' love these animations!!!

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Ted ed always amazes us by it's amazing animations. It's really appreciable 👍👍.love the way you teach us Ted ed. 💓

[@CHANDANMAITIcmaiti]

Valuable information and updates...

[@jcpatrick4824]

Brilliant video thank you....

[@anonymousdude2550]

Wow what a great educational video... I never thought that light could be that much useful. Maybe we could use light to travel at speed of light.

[@anonymous-vs8oo]

Best animation with good explained

[@Blaze_0101]

Cool animations !

[@strange_and_magnificent]

Love this animation style! ❤️👍🏻

[@clarissaflatonmyderrierehe6071]

My last two brain cells tried so hard to understand this

[@strange_and_magnificent]

Loving the animation. 👍🏻👍🏻👍🏻👍🏻

[@ADEehrh]

Way to go science!

[@lucasgamer8886]

Such a awesome video!

[@smarteye7298]

I always lose my mind after 2 minutes of every vedio. 😢

[@legolas76524]

smart eye I didn’t even notice that at about 2 minutes I stopped paying attention, sent a text, and then started reading comments. Ty for the eye opening lol

[@gradientO]

*_Do a video about Neural Network_*

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KZbin g how to write in italics?

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@@garlic7330 Use underscores (_) before and after your string of text

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Pranav Limaye _like this_ ?

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@@garlic7330 You've got it :)

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this channel deserves more subscribers

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"Cries in Elizabeth Holmes* If you get that joke you're my type of person lol

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the customer is always light

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Wow. Like what exactly are our education systems doing

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Stop doing like if you agree thing Like if you agree

[@larcomj]

super interesting stuff using ring resonators for Fourier analysis.

[@iamconfusion7822]

i was here as fast as the *speed of light* (8 min)

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Wow so you come from a planet 150.000.000 km (8 light-minutes) away? Are you on the surface of the sun? Nice that you can get internet out there

[@pranavlimaye]

@@bobthegoat7090 You just stole the words right out of my mouth SOOO fast, I suspect you've been traveling faster than light to go back in time.

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5 years ago I was 9 It's when I started watching this channels

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Brilliantly done! 👍🏻❤️

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I love the cool animation that makes it easy to understand!

[@osse1n]

*And thou shall always have light, to guide and to warm... am I close?*

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Why are you EVERYWHERE!

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@@kaustubhgupta46 So that you finally can click on my username and discover things

[@RavenIsAnArtist]

I hated the brown one that they wrap on your finger. After surgery, mine was always in my way when I wanted to do something. Not to mention it was setting off the monitor. And it was so loud in the ICU.

[@tonywu3056]

TED ED videos are just so calming

[@spinel7603]

i feel like im the smartest kid in the world when i watch ted-ed

[@davidbuschhorn6539]

You can buy pulse-oximeters on Amazon. You can even get ones that will record what's going on overnight so you can upload it to your computer and print out a graph the next morning. I think mine cost $16. One of those saved my life. I have a tracheostomy now and without it, I'd be dead. I showed the data to two doctors and they both told me, "Get to the ER., Pack a bag and leave now. This is serious." I was essentially climbing Everest without oxygen every night for months. I was getting dumber and I knew it. While in the ER, I fell asleep and had a near death experience. It was awesome and I can tell you, it takes the edge off knowing I'm going to die in the next few years. I hope the final one is as cool at that one. My SpO2 fell below 70 (extremely bad) and my brain thought I was smothering to death. It'll sound weird, but if you're old and dying of pneumonia, don't let them drug you. You'll have the most amazing NDE ever as your O2 levels drop. You don't want to miss it! Just my $0.02.

[@Elmore207]

Had the pleasure of interviewing a researcher working on something a lot like that coin-sized blood tester earlier this year. We’ll be buying them from the local chemist before long.

[@insertnamehere8099]

I always wondered about this!

[@vladimirjosh6575]

*_THANKS FOR THE EDUCATION!_*

[@arfn1973]

Simple animation, but yet informative and educative.

[@ethannepomuceno3857]

I love this channel, very educational and entertaining

[@babuvasudevan7883]

This makes me know more that what I learnt in school

[@anisha6220]

bro this was in my exam yesterday 😭😭 if only this had come out a few days earlier 😂😭

[@lilithslittlemoon]

Ahhh hope it went well! how'd you do?!

[@anisha6220]

awwhh thanks !! it was mostly alright, gonna get the results in a few months :'/

[@JulyRuliia]

All the artists in the comment knowing the existence of Sub Surface Scatering : Yeah.

[@palv1111]

This video is very nice.

[@mjstory1976]

Awesome and informative video