The Flash is the WRONG COLOR

[@MonsoonMike]

"You see, officer, due to the Doppler effect, the light looked green to me."

[@randomdude7386]

I'm gonna pull that move

[@sfadsgdsgsfd8754]

Then you'll get a ticket for speeding

[@trueaidooo]

@@sfadsgdsgsfd8754 Or for destruction of property as you oblterate everything in your path while moving a percent the speed of light

[@KitKatHexe]

"It was still on top wasn't it?"

[@randomdude7386]

@@sfadsgdsgsfd8754 thats not how it works thats not how any of it works I'll just reverse card them If they chain lawsuit I'm going to summon my monarchs and banish it all togeher thats how it works

[@petrsevcik5044]

A shop at my university had a big red dot on the wall with "If this dot appears blue, you're moving too fast."

[@Swole_beast34]

Dang 🙃🙃🙃

[@Rhuind]

Lol

[@-cookiezila-461]

Colorblind people who see red as blue (its rare tho): slows down to the speed I run

[@albertjackinson]

Now THAT'S awesome!

[@spider59er35]

Petr Ševčík does that mean Sonic is always the right color?

[@Tokorai]

Anyone: According to physics, Flash should- Speed Force: I'ma stop ya right there, bud.

[@myheromedia-verse]

Yeah the speed force can pretty much defy physics

[@B-SybrZaku-ThendHaloAirsofting]

Speed force = physics breaker just because he can move that fast so yeah

[@Mordalon]

“I’ma accelerate you right there”

[@CahyoPrabowo]

Your physic cannot beat my plot armor

[@konpeitosama]

Speed Force: Stop, Kyle. Stop.

[@foreverbxnished]

when he said, “first, what is color?” i got vsauce vibes

[@Anonymous-zd1ow]

Is your red the same as my red?

[@samuelmatheson9655]

Or did you, *Vsauce noises*

[@foreverbxnished]

Samuel Matheson well, first of all, what is a vibe? what is this feeling that we get in our bodies and minds that makes it feel so...cool?

[@alansmithee419]

@@Anonymous-zd1ow is your green blue for me, or is my blue your blue too?

[@phamily-tv]

That's funny, I just came here after watching a vsauce video

[@mr.fahrenheit4643]

The flash: “puts 69 on the screen” Kyle: “Oh, nice”

[@manucitomx]

Oh, I would gladly participate.

[@billybones6463]

4:03

[@Eva_Weesing]

So you admit to speeding

[@ignatz14]

Kyle: "We best know the Doppler Effect from sound. Observe." Me: *thinks* "Huh, he's gonna show the ambulance example. Neat." Kyle: *drives by screaming*

[@zzzdee1980]

LOL

[@christianvalentinocalicchi2517]

Hahahahaha

[@DavidAllen_0]

This made me laugh 😂

[@ssrogers427]

Are you really surprised though?

[@thesilentvampire]

That's kyle

[@tomasmartinez655]

So basically the Dragon Ball fighting sequence of disappearing and appearing again from behind is scientifically accurate if moving fast enough?

[@nickleo7586]

Not only that but the reason why rocks lift up around them when they're powering up is because energy and mass are the same, E=mc^2, so when they power up they're increasing their mass and begin fighting with the planet for gravitational dominance, slightly. They could easily blow up planets by powering up lol

[@user-wm7mk2nt4d]

@@nickleo7586 Goku nearly destroyed Earth when transforming in Super Saiyan 3

[@darthcalanil5333]

@@nickleo7586 when freaking shonan Anime makes more scientific sense that scifi comics🤣

[@nickleo7586]

@@darthcalanil5333 even better is Dragonball never even tells ya. Scifi just HAS to beat ya over the head with science.

[@EpiphoneShredzzzzz]

@@user-wm7mk2nt4d but then when he goes far past SS3 in Super the Earth is completely fine lol

[@slipipipi7971]

So... anime characters going superspeed turning invisible is more accurate

[@VitorSalsicha]

in my experience with anime it is to cut budget by drawing less

[@KaliTakumi]

@@VitorSalsicha you dont say

[@nohbuddy1]

"Ludicrous speeds" He's gone to plaid

[@fullonsugmadic9013]

Honestly I was hoping he would have said that haha

[@synaesthesia2010]

i guess someone had to say it

[@juliusanderson4528]

Smoke if you got 'em

[@coolbionicle]

He's lucky his brain doesn't go into his feet

[@sirlaugholot]

Lmao...Balls of Space

[@greenhoodedvigilante458]

Next episode, "Phasing through solid object."

[@hunterzolomon9934]

Phasing*

[@greenhoodedvigilante458]

@@hunterzolomon9934 My bad. You know, keyboard's word suggestion.

[@hunterzolomon9934]

@@greenhoodedvigilante458 Its ok, i have the same Problems 😉

[@edgardcharlotin3319]

I think he already did that episode

[@greenhoodedvigilante458]

@@edgardcharlotin3319 Can you give me the link?

[@Scheeringa1]

Red might be the perfect color for a hero. When he's running towards the action he's more visible, but when he's retreating he would more quickly go invisible.

[@ZielAmerak]

yeah, they will never see a hero run away from a crime scene.

[@ninjahorus8525]

@@ZielAmerak Tell that to A-Train

[@YoutubeIsAGarbagePit]

idk about you, but i can see red. even if it gets more red.

[@camerondale6529]

Except he can't go that fast.

[@ProfAzimov]

​@@KZbinIsAGarbagePit You can see infared?

[@Zadanoire]

*kyle: "REALITY IS A LIE!"* *me, sipping some good liquid calcium: "yeah, and time ss just a concept, thor clone."*

[@CamaroAmx]

Zadanoire 0203 exactly. Time isn’t real. We made it up.

[@antiisocial]

@@CamaroAmx *Time cries alone in the 4th dimension. Kinda

[@SuviTuuliAllan]

boner hurting juice!!!???

[@brandenlumley4056]

@@CamaroAmx nope,time is real,however our perception is inconsistent and the divisions do not actualy exist

[@timcarder2170]

Like the 70's t-shirt said; *"Reality. What A Concept"*

[@Disconrose]

Superheroes: *exists* Because Science: WRONG

[@brentvettel5343]

Yes

[@coronkraatz7491]

Super villain exists: Kyle: I DON'T KNOE HIM

[@blackskullraven]

WORNG I SAY!!! WORNGFULLY WORNG!!!

[@tonylopez568]

Because science: I’m about to ruin this mans whole career😂😂

[@devinlupei5071]

At least werewolves are more scientifically accurate than the Hulk, so I'm happy I'm writing about more scientifically accurate creatures than one of the most well-known superheros.

[@alexanderelderhorst2107]

*advertisement plays* Kyle when it comes back on: sorry I stopped off in Italy for a plate of spaget

[@cesarferraz7807]

"Roses are red , roses are blue , depending on their velocity relative to you."

[@theshadowjack6741]

i love this so much

[@John73John]

9:00 "At one quarter the speed of light, he is blueshifted out of the visible spectrum entirely and turns invisible". That's assuming that red wavelengths are the ONLY electromagnetic waves coming from him. There are always other even longer wavelengths like infrared. These are ordinarily invisible, but as the visible waves blueshift out of the visible spectrum, infrared shifts into the visible spectrum, so he'd still be visible. If he went fast enough, even the signal from his suit's radio would become visible. Furthermore, regardless of what the Doppler Effect is doing, he will always be blocking light from objects behind him, so even if he could somehow hide his own EM spectrum entirely, he'd appear as a dark man-shaped hole in the surroundings. So don't worry about Barry sneaking up on you -- you can go ahead with your dastardly evil supervillain plans.

[@YounesLayachi]

Bingo ! Best correction :D

[@Adirbal]

inb4 super nerd

[@MrGamelover23]

But wouldn't he be going so fast you wouldn't even be able to register the whole he makes? Like, he's super fast, you won't notice it.

[@Lowkeylie]

Honestly I kinda wanna see someone use this against him one day now.

[@christianheichel]

Made lots of sense and it was groovy. Thanks for the explanation

[@jonathanrynjah]

When he said "what is color?" 'Vsauce's music intensifies'

[@Smooby_Dooperson]

Sconne Rangkynsai yoooo I was thinking the same thing !!

[@_rub1x]

i was looking for this exact comment

[@TheBigBadBeowulf]

My dad is severely red-green color-blind. So one day as a joke, he wanted his office painted beige. So my mom painted at hot pink and he loved it because he thought it was beige.

[@davidkeith3920]

Kyle, I feel obligated to point out that generally speaking, when the viewer sees the Flash and the Flash's suit during motion/travel (comics or film), it's usually because they're brought along for the ride (a camera perspective point of view). As such, that camera is accelerated to the Flash's speed as well, negating the Doppler effect. The color changes that you display when you're 'running' at increasing percentages of lightspeed wouldn't occur because the camera perspective (the viewer) is changing along with your changes in speed. A stationary onlooker wouldn't be able to see if the Flash was or wasn't the wrong color. They'd only see a Doppler-shifted blur of color (or nothing at all, when shifted into IR/UV). And given that Flash's red suit fades into IR at a mere 0.05c when moving away from the observer, that means the Flash barely has to do anything to be effectively invisible at any given time other than on approach to a threat. It's not a style choice. It's electromagnetic optical camouflage.

[@ninjarnb]

Yeah, but in the show he was the "Red" Flash before being.. the Flash! Who make think they perceives his color even running at high speeds... Or maybe the don't see him but with optical illusion magic convince them: "If he is red on stop, he should be red in movement" and... Red Flash... Human brain really...

[@nosuchthing8]

Bravo

[@Mernom]

With that sort of speed, all other powers are basically irrelevant, unless the authors REALLY want to force a conflict.

[@deserttortoise21]

8:59 Why would he be invisible, instead of just black? He's reflecting a wavelength we can't see, yes, but he is still a solid object.

[@gailien]

Because humans can only see in the "visible spectrum" of light (red thru blue) but anything faster or slower than those wave length spectrums become those of infra red and cray spectrums, "invisible" to the human eye, but otherwise perceptible with certain technologies....although, if the flash moves fast enough to pass into said spectrums, I also believe that jedi bee too fast to be perceived by any known mechanical technology we have as humans, so still "invisible".

[@brettgoldenbloome7036]

@@gailien I think he/she is talking about the light behind him would not be visible to you so he would be a "black" object like a black hole blocking all the light behind it. It would be like a black body object absorbing all the light and not emitting any visible light.

[@thejeffbot]

It's like a black hole, we can see an outline cause of surrounding things like stars so it's the same with flash but you would see buildings and people as an outline

[@philippepemberton6001]

3:20 Kyle is screaming from the eternal agony his immortal body experiences outside of the void. His life force can only be sustained for a limited amount of time before he must return to whence he came.

[@Kremit_the_Forg]

I thought it was a clone of him, screaming with tears of joy in his eyes, knowing he gained sentience and escaped the laboratory in which he was created. Well that was until the real "Void-Kyle" sensed a disturbance in the hive, flipped a switch and all clones of him currently acting in the "real world" suddenly exploded. Because you can't risk it. Sentience grows like a virus.

[@nukadova4377]

Superhero: Exists Kyle: “Hey you! I got a bone to pick with you! You don’t make sense!”

[@Sonofsun.]

wrong if flash knew the physics he would wear a purple costume so he could beat the villains with out even being seen

[@Ferodra]

"Sir, why are you screaming, while you're driving?" "BECAUSE SCIENCE"

[@shawnpitman876]

He clearly can't be the one driving. That's the passenger side of the car he's hanging out of.

[@ernestsmith5044]

@@B00s3 lol, but europe uses normal cars.

[@skylx0812]

"Oh look, a real life Warner Bros cartoon just went by."

[@darosamath]

He's not driving. He's shotguning.

[@tonyhinders4429]

"oh ok. That's acceptable, have a nice day"

[@Brightish]

"My name is barry allen" "And am the fastest gay man on earth" "I am,,,the rainbow"

[@TheACcam]

I suggest you do a search for the character "Rainbow Raider".

[@dbgoat4436]

Brighton that isn’t funny

[@chiedzacharitydube6597]

Do you research bud

[@grgamer8470]

who said that Barry is gay?

[@samcochran8203]

Kyle: "I'm using physics to say that if The Flash can travel as fast as all the comics and movies say he can" Me: WHAT ABOUT THE ARROWVERSE?!!!

[@sirpierreblanch8855]

Sam Cochran tbh I only watch DC from arrowverse

[@sisi7304]

yeah he can go .99999c in the arrowverse so he is probably invisible, but his lightning isn't, that's why he's still "seen" via lightning

[@aidanrogers4438]

3:20 Possibly the greatest Because Science moment

[@TagRoss]

0:47 of course, if he's going ludicrous speeds he should be plaid.

[@petar20]

Kyle: *sees 69* "Oh, nice." Me: Hol' up

[@BaerlyHere_]

Petar Kyle: “But what do I know, reality’s a lie” Me: 😧

[@nerdtastic7971]

Kyle: "according to physics..." Speed Force: "Am i a joke to you"

[@secrecy3915]

When viewing him from the side, if he's fast enough, the light you view would give you expired information.

[@Sceadusawol]

Kyle: "If the Flash routinely approaches ludicrous speeds..." What, not a single mention of plaid?

[@lashmiller]

Lēoht Steren you are the hero we don’t deserve.

[@skylx0812]

Speaking of... how is that suit of his not generating static electricity? "He saved my life but now my hair is all staticky..."

[@christianheichel]

Spaceballs

[@erinkarp6317]

This would be so cool if this actually happened in DC stuff. Imagine seeing the flash gradually changing color in a dramatic scene where he's accelerating closer and close to the speed of light.

[@anthonyhernandez4266]

That would be fucking great.

[@el_Red_Boy]

Kyle:"The flash is the wrong colour" Me: *Frowns in red*

[@henrypaleveda7760]

they could call him (with the suggested suit colors) "Green lightning"

[@el_Red_Boy]

@@henrypaleveda7760 Me: *red frowning deepens*

[@LittleGhostyOfficialTM]

*cries in spanish*

[@joshnordkins5826]

@@LittleGhostyOfficialTM surely you mean *cries in Italian* right into your plate of spaghet.

[@TheACcam]

I knew exactly what this was going to be about when I saw the title, and clicked anyways just because of the joy it brings me to see someone who is versed both in real science as well as comic science having fun melding them together. Good job!

[@someoneelse7695]

Hey Kyle, great show [...]. I have two things to point out. Firstly, at 9:35 you state "If he wanted to be most consistently visible [...]", but why would he want to. From a tactical perspective, a red costume would make a lot of sense, because then he would most easily turn invisible when running away from something. Secondly, you're not taking into account the movement of the observer. I don't read a lot of flash comics, but from what I've seen, it seems that the running flash is depicted from several different perspectives (face-on, sideways, etc.) and this perspective would have an effect on the color the suit would be to the observer. For some, you would have to do a 'triple shift' that negates the second one, while for others you would have to take into account the angle of the observer compared to the movement of the flash. You might argue that the observer would be standing still. However, this would require an incredible light-sensitivity on the part of the observer to make out a shape based on the miniscule amount of light to reach it from the flash at any given position.

[@JLBIII]

Ive never laughed as hard as when i saw kyle screaming out of a car window.

[@VijayKoushik_aka_moon01man]

Yeah. Me too 😂. I was expecting an ambulance or something

[@adhishreepanwar9492]

3:20 (ur welcome)

[@JLBIII]

@@adhishreepanwar9492 If i wanted to time stamp it i would have.

[@MrShadowwolf04]

"Please consider the following" Throw back to the other great science show; Bill Nye the Science Guy. Honestly could we get a colab between the two of you on something?

[@jasperalmoore]

MAKE THIS HAPPEN

[@billbillinger2117]

Please no.

[@jonathandodd1729]

I will choose to remember Bill Nye for his once greatness, not for whatever dumpster fire propaganda he makes now.

[@stens.8394]

@@jonathandodd1729 agreed.

[@isaiahoconnor8236]

@@billbillinger2117 my exact thought.

[@NinjaBearFilms]

Hey Kyle, love the show and your connection with your audience. I’m guessing that I’m I haven’t gotten into Footnotes lately because of the number of times I’ve gotten SuperNerd. But that’s not going to stop me from continuing to contribute. So you say he needs to move at 0.25 c to become so fast that he’s invisible. Which is a trick he often uses to move around and do things without people seeing him. But in various mediums, we see him doing this to invisibly accomplish things while others are “frozen” but with Time Dilation at fast speeds, if he spent 10 minutes doing things at invisible speeds, that would be 11:40 seconds for everyone else. Not exactly frozen. And moving faster doesn’t solve the problem. Moving at 0.5 c to accomplish invisible tasks for 10 minutes would allow everyone else to experience 12 minutes of time. 0.9 c would cause his ten minutes of perceived time to be 23 minutes for everyone else. So the faster he moves, and to be invisible, he might have the ability to accomplish incredible things over great distances without any one seeing. But if he’s zipping around a single room to confess his heart felt regrets and desires to the love of his life for five to ten minutes without being seen or heard. (As he’s been known to do) She would not be frozen but moving in a weird time dilation perception way… faster in that room. Relativity and perception is weird when you move that fast.

[@devalphamon7289]

The flash doesn't perceive time slower because of how fast hes moving he does that because his perception has to be that fast for him to even be able to move at light speeds when in a place where moving that fast would normallyresult in hit blitzing into things, flash perceives time slow even when hes standing still speedsters can even talk to one another faster than humans can perceive as seen in young justice, while standing next to each other meaning that the flash is always seeming things in a super slomo even when hes standing perfectly still.

[@NinjaBearFilms]

It’s not just him perceiving things at a different rate but doing them as well. The faster he travels the less time he has to do things.

[@NinjaBearFilms]

Because of time dilation, there is no speed below C that you could move so fast that everyone else will be frozen to your perception and action. And above C is unknown since the math says that’s impossible. It’s funny and weird, but in order for the speedsters to have the do everything while everyone else is frozen, the speed force would actually have to be affecting everyone and everything around him to the relativistic equivalent of traveling at 99.9999% C. Making every minute that he does stuff, an hour for the rest of the world.

[@YamiYoshii]

Wouldn't stoping and changing direction during his invisible moments change the effect of the time dilation

[@albertjackinson]

"But what do I know; reality is a lie." 2:39 That's disburbing.

[@michaelbloomer451]

Or liberating

[@royalwalnutbroth5664]

Albert Jackinson Kyle: Because Philosophy *baroque concerto of because sci theme*

[@radiation648]

But very relavent

[@isaacciego888]

Hey Kyle, great episode! good way to show the doppler effect, i did not expect to hear you screaming on the street, it seems that you will always surprise us, GREAT!

[@zu5hii]

"Kyle, what does the scouter say about his power lever?" "It's 8:17"

[@dorianjareth9198]

Nice

[@remobrown9011]

He said it! Ladies and gentlemen. We got him.

[@jeromep234]

Ahahaaaaaaaa i get it

[@ninjahombrepalito1721]

Nice!

[@AnasKHAN-pc7xy]

Yeah

[@victorpena5217]

"ludicrous speed" .... It'd be funny to see the flash go to plaid hahaha

[@dralowicz]

Spaceballs reference

[@OutlawWalker]

Love this...

[@NotThatGuy_YepThatGuy]

I get this reference

[@2Beasty]

@@dralowicz also, Tesla

[@JanFWeh]

Why isn't the Flash color shifted while running? Scientific answer: *The Speed Force!*

[@DocWolph]

DC is really DUMB about science.

[@TheThottbot]

@@DocWolph not like marvel is either, ironman would die from gravitational forces multiple times over just from taking off and landing

[@phantom3146]

DocWolph no , the speed force is an extra dimensional energy which is the source of his powers , allows him to break the laws of physics and generates an aura that protects him from friction . The Writers at least TRY to give scientific explanations . Unlike quick silver in marvel

[@DanielRossellSolanes]

@@phantom3146 sorry to ruin your day but all superhero writers give pseudo scientific explanations that aren't coherent with themselves. true that you can "explain" that the speed force is an "extra dimensional whatever" that provides the source of his powers (which, by the way, makes no sense. it's the same as saying "I wizard did it") but we have seen superman and the flash testing who runs faster and, depending on who writes the story, either can win. now, flash may have the speed force but superman doesn't and they do the same thing. depicting him in a wrong color so the excuse of the speed force to allow him break laws of physics is void (unless a wizard did it") by the way, quicksilver is a mutant and his speed isn't as extreme as the flash (although this exact top speed depends, as always, on what the plot requires) reaching only several times the speed of sound. with a faster than human metabolism that's quite reasonable (compared, for example, to wolverine, cyclops, storm, magneto, shadowcat or professor X)

[@-Ryodan]

@@DanielRossellSolanes canonically the flash is far quicker than superman. its canon that all the times that Superman "won" or drawn, it was the Flash holding back because most of those races were for charity and the flash wanted to keep the appearance that superman was all-powerful. The speed force is exclusive to "speedsters" and allows them to bend science. Is it a cop-out, yes, but it's a superhero comic, they're not real.

[@jordanadkins1533]

Kyle: "please, consider the following." Me: "hey that's reminiscent of bill nye. Nice bro nice."

[@SaintHoop]

“But what do I know, reality is a lie.” Time to put that at the end of all my exam questions.

[@adrienbrandejsky4680]

Hi Kyle, Thanks for the great content! This is a little known fact about the flash but the red colour was actually chosen on purpose: Originally, Barry Allen’s costume was white and whenever he would rush to save someone, the sunlight reflected by his outfit in front of him would be blue-shifted so much that he would emit a large dose of ultraviolet causing horrible sunburn to the passers by. Later on, in order to resolve this issue, he decided to switch to his current red costume as it absorbs the green and blue light at the high-frequency end of the visible spectrum. Only the red light is reflected and it is blue-shifted into harmless visible light.

[@adrienbrandejsky4680]

Sam N. That’s right but Batman wouldn’t let him join the league in a black outfit due to copyright infringement

[@Ellithas1]

If the flash routinely approaches "ludicrous speeds", surely he'd go to plaid

[@HurtSmooch601]

The title: "FLASH IS THE WRONG COLOR" Me: hmmmmmmmmmmmmmmmm

[@scottsanders4589]

I thought it was a little suspect that the Fastest person on Earth was a white boy as well.

[@Werewolf914]

The Flash is Red? I thought he was Caucasian this whole time! 🤦‍♂️

[@dupersuper1938]

There was an issue of Wally Wests Flash title (issue 90-something, I believe) in which he uses this to get a good look at an energy field a villain had erected around the city. He ran away fast enough to shift the invisible field to visible light from his perspective.

[@Odinsravenhugin]

Hey Kyle, Great episode. I never figured that the Doppler effect would be applicable to light and found its effects on interpreted color as something very "enlightening". (Sorry not sorry) Couple of interesting fun facts to consider: 1. if you can see something it is reflecting light, even if its black. Our eyes function solely on the principal of light perception and if something wasn't emitting or reflecting light it flat out cannot be seen. 2. When talking about light and color an important thing to keep in mind that colored light does not act like paint, in fact it works the opposite. Paint and pigmentation work on the subtractive property while light works on the additive property, meaning the more pigments of paint you apply to an object the closer it gets to black (because abosrbtion of light) while light works the opposite, the more colors of light you layer onto an item, they illuminate white. This is why LED lighting fixtures generally run on red, green, blue diodes (or Cyan, Magenta, Yellow for more accurate mixing) in order to create all them fancy lights folks tend to like for rock concerts or other big time events. 3. With point two in mind, applying colored light to dyed cloth or painted material can lead to some very interesting (and frustrating) interactions. for instance, cheap black shirts under heavily saturated blue light tend to actually glow reddish, and using red light on a blue object such as a ball will make you perceive it more towards grey. Makes for interesting experiments with the lighting spectrum but also makes theatrical lighting designers cry from time to time. 4. The last fun fact is the interaction of colored objects to their particular wavelength of colored light. This creates a interesting "pop" effect where the color is perceived extremely distinct even if its not the dominant color in the light. a saturated purple light is a fantastic example of this as it makes blue and red objects have this pop effect, while greens and yellows become more muted. Subsequently an Orange (amber is the technical term) light will cause again, red to pop a bit but makes yellows a lot more memorable while blues and greens are muted. any who hope you enjoyed the fun facts! Keep up the great work.

[@UIG0KU]

"But what do I know reality is a lie" lmao Kyle youre my favorite comedian.

[@renatoigmed]

there's a good chance that he's serious.

[@gabrielmenzie9287]

I'm color ”blind” and for the majority of my life I thought the flash was green.

[@lag00n54]

Green flash... It works for green lantern but not for flash Especially since green and yellow doesn't look that good

[@lag00n54]

That or I'm just used to red and yellow

[@jashthemad5]

The only people that can see the flash when running are other speedsters because their mind is just moving so fast that they can keep up

[@Cman04092]

Its crazy to think that we could all be seeing different colors but still identifing them the same way. For example, for my friend, he could see red and indentify it as red, but what he is seeing is what i would call blue. We would never know, because we both agree that red is red, and we can never perceive things via the other persons mind. So theoretically, everyone could see red differently, and we'd never know because they're still indentifying it as red, but it could look entirely different to all of us. What even is red? Now my head hurts...

[@smashmaniac2008]

This actually explains the trail colors pretty well and why the lightning goes from Red to Yellow to Green to Blue to Indigo to Purple to White depending on how fast he’s going

[@tomclem]

Sometimes, I move so fast it appears that I'm standing still. Sometimes, when I move that fast, it also sounds like I'm snoring.

[@Nucleius]

Hey Kyle! Love the show! If he was moving away from or toward you at that high of speed, would our brains be even able to recognize him fast enough to interpret a color? Also, every time we see the Flash running in "moving pictures" the perspective of the viewer is technically changing, traveling at the same speed as the Flash himself. Wouldn't we interpret the color of his costume as the same if we (our perspective) was traveling just as fast?

[@YounesLayachi]

The flash could run a long distance towards you then pass by very quickly instead of stand still once he gets to you, human eyes can perceive very tiny numbers of photons (even single photos, as some say)

[@noodel3374]

3:19, what have other people tought of this man

[@1wingedauron]

l .basti. l "must be that Hill boy again..."

[@Blizzard7237]

"What do i know reality is a lie" Me: Mr. Anderson....

[@chanceman211]

His name is neo hahaha

[@onebrownmeece]

I feel obligated to point out that this analysis only applies to the suit so the Flash’s face would, according to this analysis, blue-shift out of visibility before his suit does.

[@jaysoncadano]

Hi kyle, love the show (really). Just a question though. Wouldn't the flash's color register fast enough for the human brain to interpret it? I mean, there is a delay on how humans perceive images (as you mentioned), so I'm just thinking what would that delay play in seeing something moving very fast.

[@drwijnen1729]

Not really. It would just mean that you notice it long after it happened. The reason you may miss it is that the event is over very soon.

[@preshnii-chan7368]

Not to mention the momentum of the wavelengths being ridiculous since (to my understanding) wavelengths and the sort isnt slown down by gravity and what have you. However the wavelengths would be nearly impossible to hit and ricochet off him, hence invisible which in turn makes himself blind... runs straight into a wall and becomes human soup.....

[@Jesse_359]

If he were running away from you or past you at some distance you wouldn't see anything. In the first case he'd be red shifted into invisibility, in the second case (running parallel to you) he wouldn't have time to deflect enough photons for your eyes to detect, so you wouldn't register anything. Standing in FRONT of him you'd probably see a bright flash of whatever color he's shifted into as he creates a 'shock front' of photons headed towards you that all arrive very close together. If he runs very close to the speed of light this shock front might be shifted into hard radiation - possibly enough to be dangerous.

[@jennajackson7892]

When Kyle says “consider the following,” I am transported back to Best Day Ever in Science class, watching Bill Nye. It makes a grown 34 year old lady happy. ❤️❤️❤️

[@acephas3]

Jenna Jackson, I, too, am 34 years old; I, too, watched Bill Nye. “Intertia is a property of matter”...

[@cameronveno]

4:04 “Ah nice”

[@jokedann]

Interestingly, in the last episode of the TV series, it's mentioned that "he had to run so fast in order to be almost invisible".

[@squeebosh8525]

10:20 There was an episode in the CW show in season 4 where Barry vibrated so fast that he was invisible to the human eye. Does that count?

[@samcochran8203]

Yes, yes it does!

[@rhodes3983]

So basically the speedforce combined with the flash suit grants him the ability to turn invisible.

[@camerondale6529]

No, he cannot go that fast. The video is gratuitous

[@EpicGamer427]

@@camerondale6529 he has gone that fast

[@elanesh547]

The Flash is the WRONG COLOUR Me before the video: I knew it! Me after the video: Oh

[@ryans8113]

"So what happens when we start speeding?" You get a ticket. Edit: also love that you did your signature pose during the Doppler example

[@kataseiko]

Someone leaning out of a car and making weird noises must be a normal thing in the US. Nobody got arrested. Well, Kyle is white, so he would be questioned, not receive two warning shots in the back.

[@michaelcornish2299]

Really nice and clear explanation of the Doppler effect, I think I will use it in my lessons.

[@lazuardidesman]

that car doppler effect is something i've been wondering for a long time . thankyou

[@adirmugrabi]

Hey Kyle love the show, BUT you forgot a very important concept. Motion, is relative! The camera is following him around, therefore, there is no relative motion. So no color shift!

[@NotThatGuy_YepThatGuy]

I hope he addresses this on Foot notes. It's pretty good

[@egor6849]

Nah, that doesn’t work, because if the camera is moving at the same speed then all static objects should be color shifted

[@otter110]

4:02 *sees 69* because science: oh nice

[@MotoCat91]

Shoulda timed it so this appeared at 4:20 for the ultimate nice

[@TheDubass]

Nice

[@otter110]

@@MotoCat91 yes

[@_Mute_]

Nice

[@manucitomx]

I’d join him

[@jbl443]

Every time he gets Einstein's mustaches stick to his upper lip he is showing an example of Raikov effect.Weird huh?Love the show Kyle Odinson.

[@ItsShatter]

How do you do the drawing on the screen effect? Do you draw on a piece of glass? Is it all after effects? When you write out words do you have to draw them backwards so that they are the right direction to the camera or is the video just mirrored? Don’t know if this comment will make sense or make me look crazy

[@Olympian05]

hi Kyle love the the show, fellow villain here, a problem with this is that most of the time when we are seeing the flash run at crazy speed we are too. If you think about it when he is running and we see him technically we are moving at the same speed and are moving with him so the wavelength itself wouldn't change. The "camera" if you will is in front of him and we are moving with him.

[@Lhorez]

When I read the title: "The Flash is the WRONG COLOR" I groaned a bit and said to myself: "Oh please don't say black"

[@thatdidact7893]

Well, uh, hate to break it to you, but when the Flash red-or-blueshifts out of the visible spectrum, he’s still blocking light from the environment from reaching your eyes, so he would appear to be a silhouette, a man-shaped black hole.

[@Lhorez]

@@thatdidact7893 lol. On first blush the title sounded like he was going to talk about the colour of his skin not the colour of his uniform.

[@camerondale6529]

That's kid flash.

[@jonathanwessner3456]

Dang it, we have a breach! He's out of the void! Since you are viewing the flash from the side, more often than not, wouldn't he still be a red blur?

[@matheuswohl]

**Compulsory Hey Kyle, love the show!** Honest question about the blue/red shifting into invisibility: From the point of view of the red dude running, when he blue/red shifts into invisibility wouldn't everything else shift for him aswell, turning him blind at those speeds?

[@thatoneXman]

I love how Kyle References Previous Jokes in The Channel's History

[@Т1000-м1и]

Enemies see what's coming for them and panic, but don't see when he runs away. Ninja.

[@thejeffbot]

Yeah but he can run at the speed of light so he can reach invisible speeds no problem even while running towards the enemies and they wouldn't see him

[@Darkssas]

So would we get a sunburn from him when he's running .25 the speed of light? Would he start to xray us when going even faster?

[@harrypadarri6349]

The amount of radiation you receive also depends on the duration of exposure. If you are exposed to sunlight for some seconds you won’t get a sunburn but after longer exposure it is possible. Since he is moving so fast the dose of uv light is very small. I have no idea whether gamma rays could be dangerous because although the wavelength shortens a lot, the exposure time would be smaller.

[@pcall5122]

Devin Kennedy i dont think so. The flash isnt emitting or generating light. He just reflect it.

[@harrypadarri6349]

P Call Sure but it makes no difference.

[@Jesse_359]

He has to run around 99.9% the speed of light in order to x-ray you. How dangerous this actually is would depend a lot on the intensity of the light he's reflecting.

[@mrmerhtin3625]

1:24 anyone else thought of the "gold or blue dress" thing?

[@mysticleo1446]

I love it when Kyle disses superheroes with science and logic X'D That joke about vibrating through objects really got me 😂😂😂🥳🥳🥳

[@DamonFyrian]

Every time you say "Please, consider the following", my inner child jumps for joy, because it brings back memories of watching Bill Nye when I was still in school.

[@R_samurai779]

You gotta see X-men Quicksilver! He travels super fast when time has already stopped !! 😂

[@jacquescrusan9500]

1:40 This is a shower thought that's been bugging me recently; and watching your video brought it to the forefront of my mind: Is interpretation of color standardized throughout humanity or is it individualistic? Allow me to explain. Pose this question: Is the color red that you see the same color red that I see? Because there's no real way to tell for certain that the colors you experience are the same ones that I experience. You say something's red, I agree because that's what the human race has unanimously agreed is red. But does that mean that my brain interprets the color the same as yours does? What if the red light wavelength that your brain perceives is one hue, but the same 'red' wavelength my brain interprets into a hue that your brain would classify as green? The same wavelength of light is being seen by both of us, but perhaps due to the different structure and cone/rod concentrations in certain areas of our eyes, the electro-chemical signal being sent to our brain is slightly different from one another (not taking into account different neural pathways due to growth and maturation of nerve cells), which causes a slightly different response/image/shade/hue to occur. Perhaps this could explain why some people respond to different color differently. Maybe our brains are naturally attracted to one perceived color (where you and I both perceive, well; let's go with blue for this example) where one wavelength triggers a blue response in you, and a different wavelength triggers the same blue response in me. Take for example your favorite car color for a vehicle. Some people like their Ferrari's red. But others prefer the classic yellow, or even black. Perhaps these people are all seeing their perceived 'blue' hue, and that draws them towards vehicles in that color. What if the red you see is my green and your green is my brown? These things keep me up at night.

[@bertdowns8186]

brown is just dark orange (google it) so you cannot have a "your green is my brown" senario. but all the colors would be the same relative to each other, so it wouldn't make any difference, i.e red and orange wouldn't become red and blue, because that would mean some people could easily tell red and orange apart even though they are actually quite similar. also favourite colors is more affected by past experiences more than anything else - people may like yellow because they enjoyed watching sunsets as a kid, or may like green because trees and grass. Even if you don't directly associate those things it's still the case.

[@juliet4093]

Bert Downs I don’t think you understand what the original commenter said, it doesn’t matter what color is what But rather how each person’s eyes interpret it, therefore someone’s “red” may look like another persons “silver” but that doesn’t matter in our day to day life because relative to each other everyone sees the “same” colors due to the fact that each person always sees the same color when looking at the same object

[@hallepelley2422]

Since there is no way to directly perceive another perceptions, it is impossible to verify that your red is my red. The fact that people respond differently may be the only 'evidence' of said phenomenon, but that would only count if you could somehow eliminate other variables, such as personal taste etc. entirely. So no, we can't verify because of the cognitive gap.

[@falanirave9062]

Imagine seeing yellow as blue. But knowing it as yellow because you were taught that it was yellow. Someone looking through your version of the colors would be confused about why you call it the wrong name. They would see the blue as you do. Only with their own interpretation of the colors.

[@ayekoliame]

Color blinded, nuff said

[@seasnek7024]

8:56 Flash turns blue at 0.19c Savaitar: *I AM THE ONCE AND FUTURE FLASH*

[@bolwic]

Hi Kyle, I have a totally non-supervillainous question for you since you are definitely not a Supervillain. Since blueshift will cause the light reflecting off the flash in increase in frequency, does this mean if an evil speedster want, they could run so fast that the reflected light becomes X-ray or Gamma ray, thus causing death in his or her wake? Asking for a friend...

[@elevatordancer]

Loved your example of Doppler Effect with sound. I laughed out loud.

[@darrengooding8785]

Hands down the best demonstration of the doppler effect, haha, well done sir

[@cubix6495]

4:48 *me acting like I know what he is on about. * my brain wondering about cheese

[@DrSlasher]

Ι clicked on this video just as the notification poped up. Flash is too slow for me

[@germanscientistklauss1519]

I already finished this video 2 hours ago, get to me level

[@vipinsl]

@@germanscientistklauss1519 i already finished watching it before the dawn of time . Beat that .

[@DrSlasher]

@@germanscientistklauss1519 I had watched it before Kyle even made it, ha!

[@randomdude7386]

@@DrSlasher still the dawn of time happened before if you stay in this universe thats why I watchted on the dawn of existence in the omniverse in the timeline that started with this video existing what was infinte years ago so beat that (oh and I mean that Infinite that can't be enriched by any means)

[@ankushpandey6234]

"he will appear black no invisible", Because Science.

[@thejeffbot]

No you can't see the colour so it's like a black hole where you just see surrounding things

[@lekkereffesnel]

Just the animations and way of explaining alone makes this channel worth subscribing to

[@xj9friday13]

Hey, Kyle! Love your independently moving eyebrows. I'd like to correct you (as some viewers have probably noticed) the optic nerve should be connected to the back of the brain, or the occipital lobe, or the visual center of the mammalian brain, not the temporal lobe, where sound is processed (or maybe you hooked it up to the corpus callosum or some other part of the mid-brain). Either way, keep up the great work!

[@ryandoesstuffapparently1540]

Is there a speed/direction he could move that would result in the light coming off him shifted into dangerous radiation that could be used as a weapon?

[@Anankin12]

Well yes. Coming towards you at high enough speed, anything can get blueshifted into gamma rays. Lemme check the right speed and I'll come back to you with an answer for each kind of wave radiation (if I remember to). EDIT: if he were to run away, radiation would get redshifted into infrared, then microwaves and then radio waves. If I remember correctly.

[@heszedjim9699]

At that point he could just gesture at that speed and rip them apart with wind

[@ronenshtein7083]

At high enough speeds he would be glowing gamma rays... Not only that, but intensity intensifies with speed too, not only frequency. And not only that but he would also collide with air molecules hard enough to make them go nuclear and even cause Doppler beaming / Doppler boosting which is what happens when material moves so fast that towards the observer the luminosity of the material is greatly boosted. Technically, even if he runs in empty space (say an atmosphere devoid moon) at 0.8 c or more, he would be hitting stray particles (in the almost vacuum of space) hard enough to vaporize around him any material known to man. That's why around 0.8 c is the "practical" speed limit of the universe for spacecraft - unless you have magic force shields to work with. Accelerating and decelerating to those speeds has a ton of deadly consequences too. For one, he would be emitting high frequency gravitational waves and depending on what happens to his protons and electrons when he runs, he could be generating multiple thousand tesla magnetic fields that can fry a person's brain if one stands too close... Btw, I'm not even sure how the Flash can see at relativistic speeds... With reaction time so fast there won't be enough light for him to see for the same reason high speed cameras need so much extra lights to work. Not only that, but incoming light should be also blue shifted, and so blind him with gamma rays.

[@kevin-lb9fi]

Idk man it is a maybe lethal radiation VS 75kg guy with enough energy to obliterate a planet

[@christianheichel]

@@ronenshtein7083 very interesting thanks for the explanation I found it exceptionally groovy

[@hallepelley2422]

Hey Kyle! Love the Show! Question about speed and if the resulting time dilation might also affect color. If the color of an object can be altered via the Doppler effect, would the fact that objects moving at relativistic speeds have "slower time" also alter the wavelengths of light coming from them as well? For example, taken from the big E's special relativity, if you stood on earth and looked through a telescope at a craft moving near C (BIG C or little c, not sure), it would appear that the occupants were moving in slow motion, but would that also alter the wavelengths of the light coming from them, thus changing their color, or would the waves 'speed up', relatively, as they left the proximity of the ship and reached the telescope. And if so, would this also mean the Flash's wavelengths (which you pointed out would already be beyond visible light as he approached C) also be altered via time dilation, thus adding another effect altering his color. And sorry if this could already be answered with the info in your very comprehensive video. (good job as always) but if the above statement is true, would the time dilation add to the already altered wavelengths or would it cancel out the Doppler effect, possibly making his color visible again? P.S. Love the hair. Separate question: Since you and Einstein both hate haircuts (me to, never change) do you think big hair and science should always go together? and does your science power work like Sampson, i.e. could you still do math if your SO shaved your head in your sleep, or would you be captured by Philistines i.e. Flat Earthers? PEACE and long life.

[@mlok4216]

10:30 Correction! The color change only applies, when you are moving relative to the camera. Which, in this case, you are not. Technically speaking (always the best way), your color shouldn't change at all.

[@PMW3]

Unless he's using a seriously accurate zoom lens.

[@mlok4216]

@Yatharth Jain because the relative motion makes the wavelength distorted, if both objects(Kyle and the cam) are either stationary or having the same direction and velocity, the wavelength stays the same ;)

[@quantumwars6661]

So he could turn into radiowaves and gammawaves. I TOTALLY got it

[@CaptainJet99]

Barry Allen (as Titan's Dick Grayson): "Fuck Physics"