An Eye for Mathematics (feat. 3Blue1Brown) - Objectivity 222

[@1blue0brown30]

1:58 He's jealous of my beautiful eyes

[@takae_underscore]

i like how you made this account specifically to say that

[@AaronTheGerman]

@@takae_underscore Imagine they'd actually start making math videos in the style of 3Blue1Brown but worse

[@jinjunliu2401]

@@AaronTheGerman or same quality so he'd become a real competitor

[@sam08g16]

Must have been hard for you to hear that Grant hates you :(

[@3blue1brown]

Well played.

[@otakuribo]

"That's a competing channel; 1blue. I hate that guy." ~ Grant "3blue1brown" Sanderson

[@1blue0brown30]

He's only jealous of my beautiful blue eyes

[@matthewgoodman7588]

@@1blue0brown30 Your lack of content disappoints me greatly.

[@troller7779]

Does anyone know where the actual 1blue channel is....?

[@jeremybuchanan4759]

"This is good maths for me, Brady, because we can both count to two."

[@omikronweapon]

British humor at its finest. subtle and slightly self-deprecating. or is it? or ís it?

[@wallsofa]

God I love Keith.

[@kpw84u2]

😂🤣😂🤣

[@fdutrey]

« It’s upside down » « Naw mate, i’m Australian »

[@WhompingWalrus]

This voice feels weird when not disembodied. I always imagined he spoke directly into a Hi-Fi mic from an inch away & boosted the low ends in post - but he really just _sounds_ like that? Wild, man. Not gonna lie, pretty jealous too lol

[@wwvvvvvww]

One sexy voice indeed

[@amber1862]

It's a strange yet wonderful feeling to be so appreciative and in awe of someone my own age (from an educational standpoint). Grant is a multiversal treasure.

[@illuminati.official]

Would gladly install him as Philosopher King (presumably against his own will, as is the custom)

[@Tevildo]

For anyone interested, the other names at 5:22 are: Thomas Young (of the double-slit experiment) Charles Hatchett (chemist, discoverer of niobium) Auguste Granville (doctor, first person to autopsy an Egyptian mummy) John Pond (Astronomer Royal).

[@RFC3514]

I thought the "double slit experiment" referred to a Goop candle that didn't make it past the product development stage.

[@jcortese3300]

Thomas Young also made some significant contributions to decoding Egyptian hieroglyphs.

[@sam08g16]

Science must find a way to make one million clones of Grant

[@pranavlimaye]

If someone starts a project like that I'll make sure it gets a financial....grant ( ͡° ͜ʖ ͡°)

[@IceMetalPunk]

3 million blue, 1 million brown?

[@wizard-pirate]

He's got brains, he's got wit, and my word, is he ever good looking.

[@alexthekunz]

"He has a disease named after him which is always good." Never change. :)

[@Larbydarg]

Grant's ability to clearly explain complex mathematical concepts never fails to astonish me. An absolutely indispensable KZbinr.

[@OBGynKenobi]

Someone ought to do a video on what that rag on Euler's head is, is it a hat, is it a wet towel, is it a tortilla? The math world awaits!

[@CelticSaint]

Looks like he was trying to put on a bandage and gave up half way through.

[@Bladavia]

It's a special type of clothe designed and made specifically for him, to hide his massive brain protruding out of his cranium.

[@DavidB5501]

Most men in the 18th century (apart from workers and peasants, obviously) had their hair cut short and wore a wig. But when they took the wig off at home they usually wore some kind of soft cap, often of fur or velvet, to keep their head warm. When they wanted to be portrayed informally, it would often be wearing a favourite cap. Look up portraits of David Hume or William Hogarth, for example.

[@thedoublehelix5661]

Its a tortilla

[@NoahTopper]

3:51 Grant: I'm going to go with some kind of reptile, like frogs or a newt. *Amphibians: Am I a joke to you?*

[@redmadhatter03]

Imagine having too many famous signatures that you don't even mention Henry Cavendish

[@ObjectivityVideos]

I’m pretty sure we did actually, but he went in the edit. :) #ruthless -Brady

[@redmadhatter03]

@@ObjectivityVideos gotta save space for ya boi Joseph Banks

[@jcortese3300]

Noticed that, too. And Thomas Young!

[@johnchancey3941]

Grant seems like such a nice and humble guy.

[@JNCressey]

fun eye fact: the L type cones, frequently described as "red" cones, actually have their peak sensitivity in the yellow part of the spectrum. They are also mildly stimulated by near ultraviolet light, but our eyes' natural lens filters those wavelengths - with the lens removed, near ultraviolet light appears magenta coloured because it activates both L type and S type cones.

[@RFC3514]

All cone types are sensitive to a pretty wide range of wavelengths (distributed in a non-uniform way). In fact, even rods have non-uniform spectral sensitivity (and we do get some chromatic information from them, though the spatial distribution of cones and rods across the retina makes rods far less relevant than the combination of different cone types - basically you need two or more sensor types very near each other to be able to distinguish hue, and the region where rods are useful for that is already full of cones, that react much faster). It's almost like our eyes _weren't_ designed by God. 8-)

[@roderickwhitehead]

This is fantastic! I absolutely love Grant's voice, have been a long time sub of his... and with that quality of content taking time to produce... it is just awesome that you had him on with Keith for Objectivity. Thanks, Brady!!!

[@dasaggropop1244]

0:42 sick burn, keith!

[@RFC3514]

"Some kind of reptile, like a frog."

[@CheshireTomcat68]

That frog Identifies as a reptile, you have a problem with that, huh. ;-)

[@galacticbob1]

Clearly none of them is a biologist either! 😋

[@JNCressey]

ha, what a dumb-dumb - turns out it was some kind of reptile like a cod.

[@MrTridac]

Ah, come on guys, that's an amphibian like Aquaman.

[@treyblakeandrew]

CheshireTomcat68 hur dur attack helicopter

[@Strothy2]

3B1B has taught me so much more then any of my tutors yet

[@wouteranthierens]

Finally I know why my favorite channel is named that way :)

[@mdniamulislam8455]

Grant really helps you grasp the concept of mathematics.

[@MrMineHeads.]

Grant's voice is so buttery smooth. I love it!

[@Sevenigma777]

In that portrait of Gauss you can just tell that guy had a sense of humor and that he was a man who liked to smile a lot.

[@RandomNullpointer]

Grant is unbelievably awesome

[@markkennedy9767]

I love the dry humour in this.

[@TheRealGuywithoutaMustache]

This is really fascinating, his eye is unique, I'd consider it a gift.

[@herbster12345]

Had no idea that his logo was based on his actual eye and that it genuinely looks like that. Fascinating!

[@dandreani]

well two of my favourite channels meeting in the most special place in the world. nicely done

[@sacredbolero]

The crossover I never knew I needed

[@LeoStaley]

Check out his appearance on the numberphile podcast.

[@Mulkek]

Great video & interesting 👌

[@frostcrackle2374]

dude it feels so weird hearing grant's voice not through his studio setup and it still sounding like grant.

[@outside8312]

He is too smart and good looking to be real. It's not fair

[@ObjectivityVideos]

Keith was just born that way.

[@dragonmateX]

Did anyone else expect Grant to be alot older based on his voice?

[@macronencer]

He's actually 78, but he's so clever he's managed to discover the secret of reversing ageing! Seriously though, I was surprised when I first saw him, too. I mean, I didn't think he was 78(!) but he does look younger than he sounds.

[@lehpares]

Great to have Grant at the channel!

[@RightClickGamers]

"WE LOST CERES!" had me cracking up!

[@123amsterdan456]

0:40 to be honest, it looks more like 2Blue1Brown :o

[@RFC3514]

Slightly less than that, in fact (1.857 to 1, based on that close-up).

[@sam08g16]

@@RFC3514 show the evidence for an A

[@michaelmagnus3590]

Nah, it looks like 3blue1brown1yellow

[@NoriMori1992]

It's more like 3Blue2Brown.

[@alimanski7941]

w.r to Gauss' "nice calculations" - read, "fine, precise calculations", not "nice" in the sense we use today.

[@recklessroges]

Nice.

[@levmatta]

This would be way cooler if they presented him with a nomination. IMAGINE THAT

[@maxnullifidian]

I like Euler's hat! LOL

[@andersjohnson9565]

3:32 “The children's book writes itself.” 😆

[@harshsawant4936]

If 3b1b sings me a lullaby, I'll sleep in an instance

[@TheZotmeister]

I've had Bell's Palsy (and had to give the best-man speech at my brother's wedding with it active). Interesting to see a bit about who it was named after.

[@elizabethh8579]

2:29 It seems that the lines may be illustrating the blood vessels in the retina.

[@TheBartgry]

2:40 Nice implicit criticism on creationism Grant

[@amisfitpuivk]

I'll add another weird eye fact. I looked up why your vision stays blurry after you rub your eyes, even after cleaning the lense with eye drops. It seems there's a liquidy substance in the eye that the light refracts through and you mess up the shape when you rub your eyes

[@Sim.Crawford]

Fun fact there's your tears and then there's mucus wordmydoctoldmeIimmediatelyforgot. If mucus bit goes out on smoko tears. Many tears so you have to walk around looking like you're crying in fun places like the supermarket

[@Coco-wo1mr]

Grant looks like Connan O'brien son haha

[@EoH1]

5:30 : When you literally started(arguably) the field of Quantum Mechanics by the doing the Double Slit Experiment and didn't get called out in between list of scientists / Mathematicians.... Sad noises. Edit: Added "Mathematicians" word as I didn't know they weren't considered scientists!

[@jwharvey7167]

I have wondered as I binge watch Obectivity if Keith Moore is aware of the works of Terry Pratchett and more precisely the library at the Unseen University and The Librarian. Not the name or the species but as a custodian of knowledge. Protector of the written word.

[@johngalt517]

my God, Grant's voice is soooooo nice

[@anteaters-R-us]

Great video, craic on

[@janeweber8654]

Honestly had no idea it was based on his eye; I always assumed it was to do with phenotypes in genetics where blue eyes were dominant

[@tim40gabby25]

At 4:00, those are clearly proto-Feynman diagrams, rediscovered, by me, apparently :)

[@Veptis]

How can you not find some geometric proof or visualisations for him?

[@antman7673]

Wow, that’s what he looks like. Always wondered to whom that pleasant voice belonged to.

[@PapaFlammy69]

k

[@RabbidMickeyMouse]

You guys missed mentioning Cavendish in the Gauss certificate! Major name missed there.

[@gabrielrmattoso]

3:57 What animal did they mention? (English is not my main language)

[@thomas.02]

Any Halo fans here will know that part of spartan augmentations is occipital capillary reversal, ie putting the blood supply behind the retina as Grant mentioned

[@sainyamgupta3058]

The teaser at the end leaves you wanting more of the same.

[@NoriMori1992]

"That's the highly competitive channel, 1Blue. I hate that guy."

[@thestemgamer3346]

HOLY SHIT the eye thing is so cool and makes so much sense. I just thought he liked coloured pi creatures ....

[@Kalumbatsch]

It looks more like 2Blue1Brown actually.

[@RFC3514]

By area, it's 1.857Blue:1Brown. I added up the pixels. :-P

[@NoriMori1992]

It's more like 3Blue2Brown.

[@philipclapper268]

Oh! I'm early for one of my favorite channels!

[@naveenkaushik643]

Brady, when are you releasing the next podcast?

[@iTeerRex]

I thought the channel was named after the Star Gate SG1 episode, when they went to unlock an space-mine, and reprogram it to hit Apophis' ship. That was blue and orange, but its was a bit of mathematical.

[@qwertyTRiG]

I assumed it was a reference to probability puzzles.

[@iTeerRex]

@@qwertyTRiG No it was a simple and direct code that they had gotten for the lock, but it wasn't working. They had to figure out that zero was not in that method of counting and add it, for the code to work.

[@qwertyTRiG]

@@iTeerRex I know nothing about Star Gate. What I meant was that I had assumed that the name 3Blue1Brown was related to probability puzzles. You know, the ones about drawing different coloured balls out of a bag.

[@LeoStaley]

Brown is just dark orange.

[@N.I.R.A.T.I.A.S.]

"I know you feel a bit awkward about attention being drawn to your eye." *literally names his KZbin channel after it*

[@AuroraBoBora]

oh wow, I thought his channel name was about that logic puzzle on the island!

[@parmbirsingh6378]

Grant is a maths Rockstar...

[@ibonitog]

My eye looks exactly the same, funny :D

[@JNCressey]

I have central heterochromia. - where one colour surrounds the pupil, and a different colour surrounds that along the outside edge of the iris. Both my eyes are the same with brown around the pupil and green around the outside edge.

[@crackedemerald4930]

Damn, my theory on the channels name origin was on point.

[@12388696]

The 3blue1brown Grant.

[@peetiegonzalez1845]

Grant is the avatar of Fourier.

[@jolaechen_r6]

Eyes are so weird! Great episode

[@alinanto7013]

Anybody here after listening to the podcast from numberphile?

[@phitsf5475]

5:20 You skipped over Thomas Young. WTF

[@grandexandi]

Gotta say... I'm surprised that a visual math savvy like Grant can't see that his eye is one third brown, not a quarter.

[@shisir_nayak2377]

I always thought 3 blue 1 brown referred to 3.1 of Pi

[@JmanNo42]

I can understand the necessity of studying biological features but can't say i am speceially drawn to it, there is something about the study of human "introspective" anatomi that seem ineherently wrong to me, why i is that? On the other side i noticed a good portion of the "topbrass" masons seem to have been drawn to the deep studies of the human biological outfit, why do you think that is? What is it that draw some people to study bones, ligaments and muscle tissue and organs i just do not get it, but i am greatful for their efforts when in comes to medecine and biology.

[@flamencoprof]

I couldn't help but notice Keith's tie extends below the belt. When I was a lad in the Fifties I was taught that was a no-no. Has English culture changed so fast?

[@manashejmadi]

Eye for mathematics He'd have probably seen the title as an *i* for mathematics i = √-1

[@randyhavard6084]

Grants greatest competition is 4Blue n0Brown

[@Mau365PP]

1:02 me too bro

[@bittertea]

Kind of felt like he wanted to see some math though.

[@leonhardeuler9839]

Oh, I forgot I was a member of the Royal Society.

[@arcanics1971]

Cod eye just say, that was a great video.

[@whoeveriam0iam14222]

"let's gloss over our lack of knowledge about eyes" we're here to look at pictures not know things

[@roygalaasen]

Funny thing is that I was reading this comment exactly the same moment they said that.

[@eabeeson]

It always feels a little strange to see the face that produces Grant's lovely voice.

[@gazzaboo8461]

It's upside down, Brady. Not if you're from 'stralya 😁

[@davidwilkie9551]

The most real people

[@LeoStaley]

That sexy look grant gives the camera at 0:03 and 8:04. I'm not gay, but holy shit.

[@austinfernando8406]

2:43 what if god is actually an octopus?

[@kpw84u2]

The cod eyes almost look like electron orbitals. 😳

[@garrysekelli6776]

Leonhard Euler had a fooked up eye too. So maybe 3. Blue 1 Brown can still redeme himself.

[@ryanlintott6849]

I always imagined him as looking something like Sean Carroll

[@bobsteele9581]

Oh my cod!

[@patricksanders858]

Smooth brained!

[@isaacjohnson8752]

If you were god and put the blood vessels behind the transducers we would all be blind from UV rays lol. Talked to an ophthalmologist about that. Apparently those blood vessels serve a very important purpose.

[@artemlyubchenko3022]

I think it's more like 2blue1brown.

[@danielmilyutin9914]

I thought 3blue1brown is because there are 3 authors with blue- and 1 author with brown- coloroured eyes.

[@kicktheeighth7297]

Grawnt Sanderson