The World in UV

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A to Rhombus : I'd love to see a video like this for infrared as well

ussi : In uv you look like Clint Eastwood

Albe Van Hanoy : I ship it.

zestyorangez : So sunscreen is blackface in ultraviolet?

R.C. Whitehead : Use sunscreen, be labeled a racist.

Master Therion : Will enough UV exposure cause heavy damage to the skin? Or will it only cause... light damage?

Chaitanya Singh : My guess: just like the blue part of the spectrum is scattered off in the atmosphere making the sky look blue to us, UV rays from far away locations get scattered due to it's smaller wavelength, just like how in foggy days we can't see far objects clearly (their light get scattered by water vapors/dust particles) EDIT : YES!

The Brony Notion : people who wear sunscreen have been getting away with blackface for years

Pierre The Hypebeast : What I got from this video is that Veritasium is black in UV

Stefan Lopuszanski : Wait you said your two front teeth are fake, but then they don't look different in the rest of the video...

Micah Philson : Aw man, why didn't you film a person with albinism under the UV camera? Their skin would have looked so different! Maybe even someone with melanism!

Siana Gearz : Wait, so sunscreen is UV-blackface? Isn't it kind of racist?

Matthew Krebs : Why does your skin look blue in some of the UV shots and gray in others?

Crucial Muzic : Definitely a great way to start my Sunday! <3

Planet Noize : Dear Mr Trump, please dont deport them, its just a visual effect..

EpicLPer : 6:00 - I always wondered how scientists flirt with each other... I guess that's a question answered now. _"Your skin looks so good in the visible spectrum of the light"_

electronicsNmore : I have a buddy that got his 2 front teeth knocked out playing football years ago. I spotted his with a UV light by accident. Great video as usual!

Taylor youngreen : what about seeing in infrared?


Virgílio Bernardo : Maybe that's why we don't see ultra violet light, this fog wouldn't be an advantage when you are running from a predator.

N O L A N M I L N E S : 1:14 your two front teeth aren't purple or darkened anymore?

IncognitoTorpedo : Those spots on skin that are visible in the UV are photodamage. If you were to look at, say, physics girl's butt in the UV (strictly for science...) I bet it would look fine.

haxhxm : Can I use UV to find out fake friends?

toamaori : My first guess was rayleigh scattering of ultraviolet light.. feeling very clever now LOL

Zhenya Farrington : Neat fanservice at 5:00.

Starlight X : UV camera is a best way to do advertising of sunscreen )

Harmen Hoek : This. Is. Quality.

Desert Tortoise 21 : It's not a very accurate representation of UV. Just like the Visible Spectrum, the Ultraviolet Spectrum also has its own "rainbow". UVA being the "red" side, UVB being like "green" since it's in the middle, and UVC being "blue". Thus, since UVC is completely absorbed by the Ozone Layer, UVB is _mostly,_ and UVA isn't, the "fog" seen on the UV camera should be roughly orange-ish. That camera only shows the _intensity_ of the UV, but not the Wavelength/Frequency.

ScooTTy : Now I can’t stop looking at his teeth

Manuel Lozano : How would a rainbow look in the ultraviolet? Would there be an "ultraviolet bow" right next to violet?

How To Make Everything : Great video and thanks for the shout out! I was wondering why our UV footage at Death Valley was so hazy in the distance, now I know why!

Rorschach : Why is that your front teeth at 1:10 aren't purple in uv like before?

Jack Le : Did Derek get his 2 front teeth for Christmas?

aaro 345 : I bet it was a intentional move to pour that tide pods liquid the way that the logo isnt facing the camera. you guys didnt want us to meme in the comment sections :D

yash wanted yadav : One question, If ,we can see light only in visible region , uv is beyond visible,, Then my question is , how are we seeing uv , I mean , on your video,? In simply ,we cannot see anything , beyond visible, and so ,you subdivided the screen ,one say uv ,and other, visible, But they both are visible, you might be wrong,

Physics Girl : "How do I put this..." at 6:05. Nice Derek, nice.

L&PForever : So that UV scatter suggests we can get UV doses even sitting in the shade

FLooper : 9:32 Half-Life 4 confirmed! ... wait ... wrong century

Arman Fatahi : 5:00 I thought he is bringing in Diana to do the same thing since she has a different skin type.

GhostrixAce : the slight off set between the uv and the visible makes my balls itch

PBMS123 : I'd pronounce that as Ray-lee scattering, given, it's spelt, Rayleigh

Dr. Royal : In UV light, it looks like you're sweating your arse off.

Space duck : I saw a look-a-like of you in a restaurant yesterday

DeadlyAviator : I'm surprised you didn't mention your palms, they're a lot lighter compared to the rest of your skin in the UV than in the Visible!

Vibudh Sharma : You're getting old, Derek. Now you're awesomer!!!!!! I admire and respect the heck out of you!

Double D 747 : Watching you right now on The Project on the TV.

R V : You look older in uv light

Sackidude : Wearing cloths protects your skin better than sunscreen and it does not have any dangerous chemicals.

马桶王子 : 4:58 ooh u sexy beast

Lift Pizzas : The stuff shown in this video would be like if space aliens showed "how humans see" and just combined all the wavelengths in our entire visible spectrum to one "brightness" value at each pixel. I would have liked to see it "interpreted" with different UV wavelengths represented as the colors we know of. And also using the range of wavelengths that insects can see (all of them, not only UV) to combine it into an image using our range of colors to represent what a flower would actually look like to something with that range of vision. I would suspect flowers are far more interesting that way.