The "Mountain Or Valley?" Illusion

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  • Опубликовано: 15 ноя 2024

Комментарии • 3,4 тыс.

  • @frodothedodo
    @frodothedodo 7 лет назад +10530

    1:48 turn your screen upside down. Man that's trippy

    • @AlexKnauth
      @AlexKnauth 7 лет назад +61

      +

    • @muffycat
      @muffycat 7 лет назад +671

      But I'm on a computer...

    • @matthewfennell7886
      @matthewfennell7886 7 лет назад +1710

      FrodoTheDodo I did as instructed.
      Then my screen auto rotated

    • @refrashed
      @refrashed 7 лет назад +148

      take a screenshot and flip it

    • @ThePC007
      @ThePC007 7 лет назад +195

      @Muffycat: Then press Ctrl + Alt + Down.

  • @LeviJohansen
    @LeviJohansen 5 лет назад +924

    I never see it right. The grand canyon is a mountain range at every orientation

  • @MilleMoomin
    @MilleMoomin 5 лет назад +711

    The grand canyon doesn't do it for me, I can't see anything else than a mountain

    • @albinliungman1093
      @albinliungman1093 5 лет назад +11

      Try closing your eyes for like 10 seconds as you’re turning the screen upside down so u don’t see the switch

    • @twilightundersky8658
      @twilightundersky8658 4 года назад +3

      Albin Liungman now I see it, but that bottom part still looks like mountains

    • @boperadotto8703
      @boperadotto8703 4 года назад +2

      For me it helped to look at that cloud/smoke plume and its shadow since my brain latches onto its correct orientation much more easily

    • @Hepoxni
      @Hepoxni 4 года назад

      I can

  • @Thytos
    @Thytos 7 лет назад +2862

    »If you didn't grow up on earth, please let me know« 😂

    • @ZeroSum23
      @ZeroSum23 7 лет назад +137

      UK isn't part of earth? Jesus...I think I misunderstood Brexit...

    • @brodiedowling
      @brodiedowling 7 лет назад +5

      ZeroSum23 haha 😂

    • @AlisonBryen
      @AlisonBryen 7 лет назад +28

      ZeroSum23 o Oh god we're leaving Earth now as well? Brexit is even worse than I'd imagined! Are we expecting to get a trade deal with the Venusians now?!!!

    • @brodiedowling
      @brodiedowling 7 лет назад +13

      brandybuck1984 let's just hope we don't leave the solar system next.
      *2 weeks later*
      Government: I have an idea let's leave the solar system!
      Me: jinxed it :(

    • @ZeroSum23
      @ZeroSum23 7 лет назад +20

      Even worse: Uranus.
      ...Okay I have to apologize. That was a shit joke.

  • @Paulo-py4mm
    @Paulo-py4mm 7 лет назад +89

    That grand canyon picture is the best. I cant stop myself from flipping it over and over. It clearly transitions from mountain to Valley and it's blowing my mind (this is after doing a perception course at uni where we went over depth perception thoroughly)

  • @andyschwendener1901
    @andyschwendener1901 4 года назад +50

    The described phenomenon has a practical reason; cartographers used to work with paper maps on desks. Since most people are right handed, desk lamps (and candles, in the older days) are usually positioned on the left side of a table, so that you‘d have the written words illuminated while your hand casts it’s shadow away from the writing. So in order for cartographers to not get confused, the shadows on maps are oriented so that they would line up with any other shadow on the desk!

    • @urszulakedra973
      @urszulakedra973 2 года назад

      That's so interesting tbh. Thanks for sharing!

    • @pesokpesok
      @pesokpesok 2 года назад +4

      didnt know that but it makes instant (clicking) sence - thanks

  • @ghostprime6320
    @ghostprime6320 7 лет назад +6117

    I didn't grow up on earth. I grew up in the US

    • @cup_check_official
      @cup_check_official 7 лет назад +293

      I grew up on uranus

    • @karlkastor
      @karlkastor 7 лет назад +325

      You can't grow up on Earth, if you don't grow up at all...

    • @jomertomale
      @jomertomale 7 лет назад +275

      Is England also your city?

    • @imperatorodaenathus9329
      @imperatorodaenathus9329 7 лет назад +170

      +Jomer Tomale
      No, England is my State

    • @Al-.-ex
      @Al-.-ex 7 лет назад +49

      A perfect example of Poe's law.

  • @biologicaldonut3851
    @biologicaldonut3851 5 лет назад +3727

    “If you were a human that grew up on Earth”
    R E L A T A B L E

    • @godofallpotatoes1614
      @godofallpotatoes1614 4 года назад +20

      @Biological Donut “were”?

    • @jmm116
      @jmm116 4 года назад +26

      Y... yes, were, i f you were... the only other two variations of “were” are we’re, which is “we are” and where, as in where is that thing. If you Were a human is correct.

    • @godofallpotatoes1614
      @godofallpotatoes1614 4 года назад +19

      Julia Rainbow
      The thing I was trying to emphasise is the fact that it was in past tense, implying that that’s not the case any longer.

    • @BrenoGF144
      @BrenoGF144 4 года назад +16

      @@godofallpotatoes1614 I mean in 10 years there'll be people in mars, so lil' Jimmy the Martian will see this video and get confused

    • @АндрейНефедьев-ю7п
      @АндрейНефедьев-ю7п 4 года назад +10

      @@godofallpotatoes1614 no. "If you were x" Is an unchangeable phrase. So the tense does not matter.

  • @vincentprime740
    @vincentprime740 5 лет назад +1239

    this is why u use freaking colours to mark heights.

    • @georgf9279
      @georgf9279 5 лет назад +17

      in photos...

    • @vincentprime740
      @vincentprime740 5 лет назад +13

      @@georgf9279 those photos looks pretty much black and white to me. if real time colour even looking from above wouldnt make u confuse.

    • @apollo4294
      @apollo4294 4 года назад +1

      Vinh Pham they arent edited

    • @fischerbasham2065
      @fischerbasham2065 4 года назад

      what system do you see most commonly?

    • @nathantj2915
      @nathantj2915 4 года назад +5

      doesn’t even work for me: a colourblind person lmao; have to use numbers to mark the heights

  • @thecentalist3160
    @thecentalist3160 7 лет назад +571

    What if it is a superposition of both a mountain and a valley.

    • @ammarkhan6883
      @ammarkhan6883 7 лет назад +103

      The Centalist vsauce Michel here

    • @pauljones3017
      @pauljones3017 7 лет назад +90

      It would collapse into a plain.

    • @indriyantoYin
      @indriyantoYin 2 года назад +12

      is it really both a mountain and a valley??
      or is it??

    • @SalamiSelimbo
      @SalamiSelimbo 2 года назад +2

      A Vatain or a Mounlley

  • @laymankeepitbrief
    @laymankeepitbrief 7 лет назад +749

    "What am I Patrick?"
    "Uh, a mountain?"
    "No, I'm a valley."
    "What's the difference?"

  • @thenuggernaut9084
    @thenuggernaut9084 5 лет назад +521

    2:30 Uhh... Your lips are looking a liiiiiittle chapped there, bud

  • @RealEngineering
    @RealEngineering 7 лет назад +214

    Ooooooooooh that outro was dope

    • @MinutePhysics
      @MinutePhysics  7 лет назад +22

      Thanks! Was fun to learn how to do, maybe it will show up in other places (though I really want to do it with hand-drawn art).

    • @jaweriamahreen9367
      @jaweriamahreen9367 7 лет назад +1

      minutephysics
      we would love to see hand drawn minutephysics..
      but the animation is really 💗💗

    • @ModernGameArmy
      @ModernGameArmy 7 лет назад

      Real Engineering neat it's real engineering

  • @vartikasinghai7
    @vartikasinghai7 7 лет назад +560

    I was a "human" born on Gallifrey... We continually suffer from this problem due to our two Suns

    • @kinomora-gaming
      @kinomora-gaming 6 лет назад +12

      ಠ_ಠ

    • @zaaliyan9855
      @zaaliyan9855 5 лет назад +10

      Lmao this comment is amazing.

    • @Lumanova
      @Lumanova 5 лет назад +48

      Having grown up on Tatooine, I can relate.

    • @swoluigi3828
      @swoluigi3828 5 лет назад +12

      Vartika Singhai I'm from Trenzalore and this fucking truth field sucks balls.

    • @confusedknight7407
      @confusedknight7407 5 лет назад +5

      On Alderan we used to have this light grey moon

  • @daltonfilho835
    @daltonfilho835 4 года назад +30

    1:50 it takes me a little bit of mind effort to perceive "Concave" as actually concave, most of the time I perceive it as convex as well. I wonder if it's bc I'm more used to artificial light sources than sunlight, which would mean my brain will usually perceive the light as coming from whatever direction is opposite to the shadows.

    • @Neonlaserz
      @Neonlaserz 2 года назад +2

      That's crazy, it's the complete opposite for me. I can see both "Concave" and "Convex" as being concave, and takes me a bit of effort to see the "Convex" as actually convex.

    • @Speedrunner.007
      @Speedrunner.007 2 года назад +1

      welp, i was able to see convex as concave and concave as concave, and both looked convex. this illusion is mind blowing

  • @N....
    @N.... 7 лет назад +95

    1:50 initially I saw the Concave one as Convex, and then I could see it both ways. I don't spend much time outside...

    • @theunicorn1167
      @theunicorn1167 6 лет назад +4

      Nicholas Braden
      I didn‘t see any difference between all the maps he showed etc.
      _I never go outside_

    • @juliarosenstein248
      @juliarosenstein248 5 лет назад +1

      The Unicorn Neither do I
      #nevergooutsidegang

    • @updated5709
      @updated5709 5 лет назад

      I was looking for quirky toxic comments like this.

  • @cavv0667
    @cavv0667 7 лет назад +151

    You could tell it was the Grand Canyon... rivers don't run across the top of mountains... ;)

    • @esco5593
      @esco5593 7 лет назад +13

      Ooooooh snap!

    • @WeatherWonders
      @WeatherWonders 7 лет назад +13

      They also don't erode out of the ground.

    • @Roxfox
      @Roxfox 7 лет назад +3

      But they DO erode the ground!

  • @austinmurre
    @austinmurre 4 года назад +32

    1:48
    Me: *turns screen upside down*
    Librarian watching me rip screen off desk: *ಠ_ಠ*

  • @lusitanimendes641
    @lusitanimendes641 7 лет назад +902

    *I didnt grow up on earth*

  • @bovineintervention6001
    @bovineintervention6001 7 лет назад +531

    1:50 I see those both coming towards me though...

    • @bovineintervention6001
      @bovineintervention6001 7 лет назад +72

      3:19 and oh my god, everything is a mountain. In between every mountain is a mountain instead of a valley...what is happening?

    • @caesural
      @caesural 7 лет назад +30

      You have problems.

    • @lanikilchrist2399
      @lanikilchrist2399 7 лет назад +4

      Bovine Intervention 1:50 i see it yoing in and out

    • @shiguy8611
      @shiguy8611 7 лет назад +5

      ya same exept i saw both at the same time

    • @nairda55555
      @nairda55555 7 лет назад +13

      Might be based because digital art often has non traditional shading and lighting and minds grow accustomed to this.

  • @nicomr05
    @nicomr05 5 лет назад +79

    Mountain: You're weak.
    Valley: I'm you.

  • @feynstein1004
    @feynstein1004 7 лет назад +213

    PBS Space Time, Numberphile, Veritasium and Minutephysics on the same day? All that's left to break the internet now is CGP Grey.

    • @anujgupta8202
      @anujgupta8202 7 лет назад +26

      Feynstein 100 what about vsauce?

    • @feynstein1004
      @feynstein1004 7 лет назад +10

      +Anuj Gupta Eh stopped watching him a while back. But okay. Let's add him to the mix.

    • @anujgupta8202
      @anujgupta8202 7 лет назад +5

      fair enough, tho he really only makes like 1 video a month

    • @EllenRipley1979
      @EllenRipley1979 7 лет назад +33

      *year

    • @anujgupta8202
      @anujgupta8202 7 лет назад +4

      Alien FeelsBadMan

  • @marvinfranj716
    @marvinfranj716 7 лет назад +229

    well, I say this video was very *_lit_*

  • @tcatking9761
    @tcatking9761 4 года назад +37

    The weird thing is that I can flip them in my mind without flipping the image which freaked me out when I was little because I was looking at a math problem with one of those see-through and I thought the image in the book changed. My parents didn't understand that though so they thought I had some mental issue. 😅 Later when I understood this concept I tried really hard and did it in real life with a clear cube and basically it looks like the front and back faces are switched which is really weird. Its hard but I know a few people who can do it too.

  • @setharooskiii
    @setharooskiii 4 года назад +75

    I didn’t grow up on earth. I’ve been on earth my whole life, I just never grew up.

  • @Noctudeit
    @Noctudeit 7 лет назад +81

    I first noticed this illusion while staring at textured drywall as a kid. With some practice I learned to force my brain to switch between the two.

    • @megamegatron99
      @megamegatron99 7 лет назад +2

      cool

    • @Fakechilada
      @Fakechilada 7 лет назад +17

      You must've had a fantastic childhood.

    • @megamegatron99
      @megamegatron99 7 лет назад +5

      we have no context surrounding why they stared at the wall

    • @jakelilley3298
      @jakelilley3298 7 лет назад +2

      phew, glad i wasn't the only one

    • @theywalkinguptoyouand4060
      @theywalkinguptoyouand4060 7 лет назад +1

      Noctudeit How sad. That never worked for me because my brain has depth perception.

  • @yttrium7646
    @yttrium7646 5 лет назад +138

    I'm not from Earth, I'm from Missouri.
    (If you get that reference, you have earned my utmost respect.)

  • @Kovukingsrod
    @Kovukingsrod 4 года назад +73

    Wait how do I see the first pic as mountains on mars?

    • @shmerox7683
      @shmerox7683 4 года назад +5

      Put your phone upside down

  • @nicholaschang6501
    @nicholaschang6501 7 лет назад +37

    The text flashing text is at 0:25, 0:51,

  • @CavCave
    @CavCave 5 лет назад +49

    When your local physicist becomes a psychologist.

  • @MinedMaker
    @MinedMaker 7 лет назад +275

    You're missing some eyes there Henry.

    • @aveeeno8140
      @aveeeno8140 7 лет назад +3

      At least he has a face

    • @zockertwins
      @zockertwins 7 лет назад

      Why do I suddenly see KSP profile pics everywhere when I just started playing it again ?

    • @aveeeno8140
      @aveeeno8140 7 лет назад +8

      Its not because the KSP secret police has been following you around.

    • @MuffinTastic
      @MuffinTastic 7 лет назад +2

      ZockerTwins frequency illusion, sorta

    • @dabeamer42
      @dabeamer42 7 лет назад

      No eyes is very common in cartoons. See Dr. Suess books, for example...lots of characters have their eyes closed. And none of the people (or cats) in Henry's drawings have eyes. Ditto xkcd, come to think of it.
      Probably having something to do with "eyes are the window to the soul" or something. "Soul" being difficult to capture with a stick figure. Plain dots might work...

  • @RafelJaggai
    @RafelJaggai 5 лет назад +21

    All u need to understand this is:
    1. Perspective
    2. Light screwing us over

  • @yaitz3313
    @yaitz3313 8 месяцев назад +1

    I spent almost all of the video thinking "He's overstating this a bit, or at least it doesn't affect me as much as others." Then the example at 3:11 came up, and it broke me. Great video.

  • @1337Unlucky
    @1337Unlucky 7 лет назад +62

    Earth is my city.

  • @UnderScorePT
    @UnderScorePT 7 лет назад +87

    JUSTICE RAINS FROM ABOVE!!!

  • @kidzbonkerz7571
    @kidzbonkerz7571 4 года назад +9

    "If you are a human that grew up on Earth..."
    7.8 billion people: *raises hand*

  • @Architector_4
    @Architector_4 7 лет назад +152

    1:15
    ...Windows Vista with virtual machine running old Windows 7?!

  • @MochYee
    @MochYee 7 лет назад +18

    I LOVE THAT ENDING STICK FIGURE ANIMATION!

  • @cardinalhamneggs5253
    @cardinalhamneggs5253 2 года назад +1

    The text on the board in the second example is probably cut into the wood, since the opposite would be significantly more difficult to achieve.

  • @therobotpig7296
    @therobotpig7296 7 лет назад +44

    I have a defective eye so I don't have any depth perception, so shadows are really important to me seeing the world.

    • @m.e.y.5790
      @m.e.y.5790 7 лет назад +9

      The Robot Pig / lol i thought you said you had a 'detective' eye

    • @r33sus8
      @r33sus8 7 лет назад +4

      aww i feel bad for you, never knowing the awesomeness of 3d monitors or virtual reality..... but then again a flat image on a normal monitor will look just as good, im confused and feel bad for myself now lol

    • @SinisterSinatraa
      @SinisterSinatraa 7 лет назад +1

      The Robot Pig I feel u

    • @youssefmousa2830
      @youssefmousa2830 7 лет назад

      depth perception relies on the triangulation of objects from both eyes, but it's near impossible for people with glasses as well like me, so shadows are important and 3-D videos don't make sense

    • @otaku3OBSESSION
      @otaku3OBSESSION 7 лет назад

      I have a very dependent eye, so my depth perception was pretty bad too. I remember my optometrist showing me a bee that was supposed to look 3D, but it only ever looked 2D to me. Old 3D movies wouldn’t look 3D. The real D 3D is better though- either that, or my right is less dependent on my left than when I was younger.

  • @muffycat
    @muffycat 7 лет назад +99

    But what if you weren't born on earth? *X-Files theme song starts playing*

    • @drtetikol
      @drtetikol 7 лет назад

      I need to know!

    • @wispy9859
      @wispy9859 7 лет назад +5

      _seinfeld theme song plays_

    • @rosepinkskyblue
      @rosepinkskyblue 7 лет назад +3

      Muffycat 101 No not x-files, it sounds like a Vsauce video

    • @kurrentevent
      @kurrentevent 7 лет назад

      Muffycat 101 😂😂

  • @concepcionponce8228
    @concepcionponce8228 5 лет назад +446

    Guy: so this is the grand Canyon
    See mountains or valleys?
    Me: I see a mass jumble of random lines and colors
    Edit: Wow 4 likes...
    That's a record
    My highscore was 2

  • @InderjeetSingh-bd9gi
    @InderjeetSingh-bd9gi 7 лет назад +11

    Henry : "If you are a human who grew up on earth"
    Me : "The video's not for me " :(

  • @harshachoudhary7847
    @harshachoudhary7847 7 лет назад +21

    I didn't grow up on Earth. I grew down.

  • @WingedEternitys
    @WingedEternitys 4 года назад +4

    This also applies to those objects that are hollow, but when you look at it and move, it looks like it’s following you.

  • @katlin8474
    @katlin8474 7 лет назад +1138

    Mountain, valley, what's the difference?
    EDIT: Now I know the reason why I failed college

    • @kathleenshitan7045
      @kathleenshitan7045 7 лет назад +76

      I failed kindergarten

    • @lono8866
      @lono8866 7 лет назад +83

      Eighth Grader Prodigy Explains Calculator Something about your ridiculous username prompted me to briefly take a look at your channel, and my god you aren't nearly as intelligent as you think you are. I know countless people who were much farther along at your age. Yes, this reply is incredibly petty, but something about the way you present yourself made it feel warranted. Unless, of course, your entire channel is very well done satire, in which case, kudos.

    • @knocknockify
      @knocknockify 7 лет назад +13

      I failed my parents

    • @vtron9832
      @vtron9832 7 лет назад +2

      I understand that OF COURSE there are people my age or younger that are by far smarter than me, but at least I am more than average, at least I'm learning derivatives and Vectors in the Eighth grade and at least I made about 5 new theories that are just waiting to be published and revolutionize our understanding of the universe and hey, I may not be the smartest but at least I'm smarter that normal and also at least I'm publishing videos about the stuff I know and contributing to society

    • @azmanabdula
      @azmanabdula 7 лет назад +49

      " at least I made about 5 new theories that are just waiting to be published and revolutionize our understanding "
      Like what?

  • @jasonspence
    @jasonspence 7 лет назад +6

    I found lots of them only half worked. For example, at 1:48, Convex should have had shadows extending past the bump, casting a longer shadow. Concave, on the other hand, had some oddities, like the inner sides of the lower left corners of 'o' and 'c', that gave it the impression of being convex, but having been spray-painted black or something (odd that I feel this rather than feeling like the light source was on the bottom right).
    I think the Grand Canyon picture worked so well because it has many layers and terrain colours, so it is hard to know where shadows would be, if it were a mountain range.

  • @n1thecaptain965
    @n1thecaptain965 5 лет назад +5

    0:51 well, in the future we will live on Kambor, but it's just earth 2.0 really. You should visit me on Freddie street sometime. Oh wait, this video was made 20000 years ago. Crazy how long RUclips survived.

  • @VishalJangid1
    @VishalJangid1 7 лет назад +1043

    Please don't use that adobe shit.
    We love your drawing.

    • @mk_rexx
      @mk_rexx 7 лет назад +86

      I like to see Henry using different animations, but the appearance of his iconic stick figure should still retain. I see that the proportions of his figure here is different (larger head, slightly shorter arms, and textures different from UnPuntoCircular's version). We'll see if he'll retain those details.

    • @lexer_
      @lexer_ 7 лет назад +82

      If he can make his animated stuff indistinguishable from the drawn stuff I'm fine with it tho.

    • @osimmac
      @osimmac 7 лет назад +49

      Most of the video is hand drawn, he just used adobe to illustrate the convex and concavity thing.
      chill.

    • @spur3
      @spur3 7 лет назад +14

      Osimmac, in the sponsored stuff at the end (3:30) he talks about learning Adobe Character Animator.

    • @daedra40
      @daedra40 7 лет назад +1

      Vishal Jangid I would call it shit, but I am sure we can all agree that his stick figures are unique to his channel.

  • @szhzs6121
    @szhzs6121 7 лет назад +86

    i see both "convex" and "concave" as convex. is something wrong with me?

    • @sebastian1234hamburg
      @sebastian1234hamburg 7 лет назад +1

      dummdumm muddmudd you’re a synergistic synesthesia person

    • @otaku3OBSESSION
      @otaku3OBSESSION 7 лет назад +1

      It could just be your perception. Nothing is wrong per se.

    • @IAM-kx1ob
      @IAM-kx1ob 7 лет назад +3

      yea, you got downs

    • @gooj6682
      @gooj6682 7 лет назад

      same

    • @87我是-h3u
      @87我是-h3u 7 лет назад +3

      dummdumm muddmudd 0:51 did you grow up on earth?

  • @cinnamonbroom
    @cinnamonbroom 5 лет назад +2

    i didnt grow up on earth, i grew up in my childhood home. Wonderful views floating through space!

  • @NotRightMusic
    @NotRightMusic 7 лет назад +12

    First there is a mountain, then there is no mountain, then there is

  • @mvshroom6875
    @mvshroom6875 4 года назад +4

    The thumbnail "Mountain Or Valley"
    Me: What do you mean? All I see is a M I R R O R

  • @abellematheux7632
    @abellematheux7632 Год назад

    I love imagining the guy seeing his card upside down, putting it back right side up, realizing that it's a fun and interesting phenomenon and writing a video about it no matter how obvious it is.

  • @penart5674
    @penart5674 7 лет назад +11

    Man, this video is driving us UP and DOWN
    end

    • @yO-ub2fc
      @yO-ub2fc 7 лет назад +2

      PenArt this comment is underrated

  • @Akykt-ls6wi
    @Akykt-ls6wi 4 года назад +3

    "if your not in earth, please let me know"
    Astronauts: am I a joke to you?

    • @JEGDUDE
      @JEGDUDE 3 года назад

      nice bro

  • @JRHainsworth
    @JRHainsworth 2 года назад

    I get this illusion the most when doing my 3D rendering work, trying to tell is a normal bump map is coming out of a model or going into it.

  • @minecraftmadison462
    @minecraftmadison462 3 года назад +6

    2:36
    Me who sees it it the other way around: BOI

  • @drewhansen4346
    @drewhansen4346 5 лет назад +7

    I just realize that these videos are made with markers and not on a whiteboard

  • @universemaps
    @universemaps 2 года назад

    Thank you for this Henry! I'm trying to get into cartography and didn't know this. I've watched MP since more than a decade ago (almost 2 decades?) and my kids love the new channel in Spanish minuto de la Tierra. Glad you now have a great team on those channels and still making this short physics videos. Thanks!

  • @Serhio0o7
    @Serhio0o7 7 лет назад +434

    To me the gray "Concave" and "Convex" look like they are both sticking out jo matter how hard i look

    • @izamanaick
      @izamanaick 7 лет назад +91

      That means your eyes are broken. I find it helpful to scoop them out with a Melon baller and​ then put them back in again

    • @feynstein1004
      @feynstein1004 7 лет назад +2

      Same

    • @Serhio0o7
      @Serhio0o7 7 лет назад +10

      Izamanaick What if i won't be able to see what side of it is concave, and then use te wrong one?

    • @zockertwins
      @zockertwins 7 лет назад +7

      Look harder

    • @izamanaick
      @izamanaick 7 лет назад +50

      Keyboard That's because you probably put them in the wrong socket. When you take them​ out look on the back. It should have an L or an R next to the Made in China stamp.

  • @mr2octavio
    @mr2octavio 7 лет назад +7

    Please if you start with computer animation keep the fidelity to the original drawings, it's what made your channel great.

  • @jokercard1955
    @jokercard1955 5 лет назад

    Sometimes when I look at my popcorn ceiling, I can either see the indents as indents or a bumped out. Yet another of these awesome illusions!

  • @TheCerealkiller148
    @TheCerealkiller148 5 лет назад +3

    I fear no man.
    But that...thing
    3:30
    it scares me

  • @Josh084-r3z
    @Josh084-r3z 7 лет назад +11

    I grew up on Uranus

  • @physsed
    @physsed 2 года назад

    I've been wondering about this issue for ages, came into the video thinking it wouldn't actually explain the issue to my satisfaction, but I was wrong. It really makes sence, and works!

  • @flightthegoatreacts3991
    @flightthegoatreacts3991 7 лет назад +252

    I was born on the sun

    • @bunny_0056
      @bunny_0056 6 лет назад +22

      Flight The Goat React's Oh that is why ur black

    • @nolanwestrich2602
      @nolanwestrich2602 6 лет назад +1

      You must be a ghost.
      From like the instant you started existing.

    • @Teaquamarine
      @Teaquamarine 5 лет назад +6

      @@bunny_0056 -racist- *BURNNN!!*

    • @gabygacha6609
      @gabygacha6609 5 лет назад

      I was on the moon

    • @thomashalsted1888
      @thomashalsted1888 4 года назад

      I _was_ the sun...
      ... before it was cool.

  • @Gvmlg
    @Gvmlg 5 лет назад +43

    0:51 i didn’t grow up on earth!

  • @ashwanishahrawat4607
    @ashwanishahrawat4607 5 лет назад +1

    1:50 took me a full minute of light physics in my brain, and to see both as concave and convex. DAMMM

  • @kentmichaelgalang686
    @kentmichaelgalang686 7 лет назад +40

    so we had a second eye for depth perception but then it still lies to us

    • @mbrusyda9437
      @mbrusyda9437 6 лет назад +26

      Depth perception won't help you very much when you're looking at a picture

    • @RonDe675
      @RonDe675 5 лет назад

      Clearly this means we need a third eye!

    • @MonkeyJedi99
      @MonkeyJedi99 4 года назад

      @@RonDe675 Stereoscopic picture viewing will capitalize on the (for most people) second eye to help provide a better grasp of depth. However, it is not as common, because for EVERY photo, a second one must be taken at a set distance from the first one at the same time, and then EVERY person who wants to (and can) use both eyes needs special viewing technology that will properly display those twinned pictures.

  • @arandomegg2447
    @arandomegg2447 5 лет назад +50

    No...I was never born on earth
    Moved here when I was 9 months old

    • @JEGDUDE
      @JEGDUDE 3 года назад

      @Katelyn Wu nice

  • @nickname826
    @nickname826 4 года назад

    “If you didn’t grow up on earth, please let me know,” - I didn’t grow up on Earth. But thankfully, this video was clear enough for me to understand your basic human problems, and relate it to mine elsewhere. Thank you.

  • @MochYee
    @MochYee 7 лет назад +40

    0:51
    -I didn't grow up on Earth-
    Just kidding XD

    • @zhangbill1194
      @zhangbill1194 6 лет назад +5

      Yee Tee ur kidding?? omg i had no idea like for a sec there i thought u where form mars no joke

    • @prodjam_
      @prodjam_ 6 лет назад

      MochYee lel XD ur so randem and funny I didn't get the joke until you said JK X🅱️ dttdghdttjrdtjrdyjtyjdrtjdt

  • @rollotiffin95
    @rollotiffin95 7 лет назад +5

    I grew up on a planet in the close vicinity of Betelgeuse.

  • @Maya-ph7ds
    @Maya-ph7ds 4 года назад +1

    oh my god the tittle mountain or valley illusion written with actual mountains and valleys is so creative! 0:21

  • @thrillcosby9961
    @thrillcosby9961 6 лет назад +18

    Lit.

  • @DenerWitt
    @DenerWitt 7 лет назад +7

    dunno why, but Im seeing just bumps, no holes, just bumps everywhere.

  • @bt70a9
    @bt70a9 4 года назад

    0:16 This is coming out of the wood, because of the simple fact that the light source is above the wood (you can see the shadow in the wood), therefore because the shadowing is happening on the lower part of the writing, it is not carved in to the wood, but rather the oposite.

  • @feynstein1004
    @feynstein1004 7 лет назад +6

    Dat stick figure Henry in the end tho. O.O

  • @nUrnxvmhTEuU
    @nUrnxvmhTEuU 7 лет назад +4

    „SKLLSHHH!“ 4:00

  • @BuddemsMorgan
    @BuddemsMorgan 5 лет назад +2

    In the Duck Rabbit illusion, I mostly see a Duck.

  • @b.hagedash7973
    @b.hagedash7973 7 лет назад +8

    Like you channel name, I still don't know if "minute" refers to the unit of time or the expression of size.

    • @AngelusDoyle
      @AngelusDoyle 7 лет назад +3

      B. Hagedash If you aren't joking, its time.

    • @Kraigon42
      @Kraigon42 7 лет назад +1

      I would say both. It's "science in a minute (or four)" and it's "bite-sized science".
      He does pronounce it in the same way the unit of time is pronounced, though.

    • @b.hagedash7973
      @b.hagedash7973 7 лет назад

      Cool, I'm a new viewer so I haven't heard him say his channel name in a vid yet. Or I just missed it.

  • @mrayrick7631
    @mrayrick7631 4 года назад +3

    0:50 “ok if your a human from earth”
    Me:wait humans are born on another planet?

  • @acidxero
    @acidxero 4 года назад

    Playing Excitebike on NES regularly caused my brain to flip in and out of the "mountain or valley" illusion. After learning what I've learned from this video, I will now call it the Excitebike Illusion.

  • @Ardgts
    @Ardgts 6 лет назад +4

    " So if you're a human that grew up on Earth. "

  • @jumpingllama3945
    @jumpingllama3945 5 лет назад +11

    Who here came from 2064?
    And live on mars
    Give a like

  • @dragonridley
    @dragonridley 2 года назад

    At conferences for planetary science you'll sometimes see scientists turning their heads and blinking while looking at somebody's poster or presentation. This is them trying to see the hills and valleys correctly.
    The nice thing about the moon and Mars is that there's usually an impact crater somewhere in the image that you can use as a reference point.

  • @saltysquid3646
    @saltysquid3646 5 лет назад +3

    If u listen to this in .25× speed he sounds so high

    • @RedFox-dj7di
      @RedFox-dj7di 5 лет назад

      😂
      why u listening him at .25x speed

  • @bat9856
    @bat9856 7 лет назад +81

    I am not from Earth...
    I am from my mother

  • @allenholloway5109
    @allenholloway5109 3 года назад

    The illusion is very real, but in most of your beginning examples, I got it correct, not because my brain doesn't have the same biases, but because one version of the "mountain or valley" made more sense in context. Like, the Grand Canyon from above makes a lot more sense geographically if it cuts into the earth rather than the other way around. The Mars picture clearly had craters that made the valleys make more sense in context. And the Snake Creek sign makes far more sense that the letters are cut into the wood, not only because it would be easier to make that way, but also because the texture of the wood reveals the location of the light source anyway, just like the Mars craters do.

  • @user-ev8lv7ot1x
    @user-ev8lv7ot1x 7 лет назад +5

    I didn't grow up on earth, proud martian here.

    • @AGoldSoldier
      @AGoldSoldier 7 лет назад +19

      Lord Daffy
      Ah, I love Maria! It's very nice in the summer

    • @esco5593
      @esco5593 7 лет назад +1

      +A Gold Soldier - Winters are pretty shit, though.

  • @rafaelc.s167
    @rafaelc.s167 5 лет назад +3

    0:49 nah fammm i wasnt born on earth
    I WAS *_MADE_* FROM CHINA

  • @Inatordias
    @Inatordias 4 года назад +1

    I used to do try and switch the concave and convexity of the lines on my ceiling when I was little

  • @bruhmoment4983
    @bruhmoment4983 5 лет назад +1235

    People who are gay
    👇

    • @relgames6080
      @relgames6080 5 лет назад +77

      Getting rid of the u because we are dumbasses who can't spell.

    • @bruhmoment4983
      @bruhmoment4983 5 лет назад +19

      @@relgames6080 im actually not an American

    • @relgames6080
      @relgames6080 5 лет назад +7

      @@bruhmoment4983 cool

    • @carl_consumer.of.reality
      @carl_consumer.of.reality 5 лет назад +55

      F.B.I. GetDownOnTheGround They actually did that long ago to save money on letters in newspapers.

    • @thecombodeluxe3109
      @thecombodeluxe3109 5 лет назад +9

      F.B.I. GetDownOnTheGround someones still salty.

  • @josepedrofernandes1982
    @josepedrofernandes1982 7 лет назад +7

    its logical if theres water, like a lake or a river, 98% of the time the water is in a depression not on top of a mountain

    • @jacksonleroy7512
      @jacksonleroy7512 6 лет назад

      Mt Ruapehu in new zealand has a lake at the top and that sits 3000 metres high, (about 1.8 miles)

    • @henryg.8762
      @henryg.8762 5 лет назад +1

      So I'm like water? 98% of the time, I'm in a state of depression? Cool!

  • @OneBanHammer
    @OneBanHammer 3 года назад +2

    Most people: “I see a rabbit!” “No it’s a duck!”
    Me: I see both...

    • @jankisi
      @jankisi 3 года назад

      Doesn't everyone? I tjought it was about which one you see first

    • @OneBanHammer
      @OneBanHammer 3 года назад

      @@jankisi AGHHHH

  • @Kwhiting1
    @Kwhiting1 6 лет назад +3

    I was born from earth 2.0 light comes from the bottom

    • @AlexKnauth
      @AlexKnauth 5 лет назад

      Huh, if you lived on a Dyson shell the lights might come from the bottom, weird

  • @louisjamespage
    @louisjamespage 7 лет назад +34

    hey Is anyone else from the vast city of England.

  • @darth0tator
    @darth0tator 5 лет назад

    the lights on the ISS just blew my mind, never thought about that :O

  • @rachelmorrow9042
    @rachelmorrow9042 7 лет назад +4

    You sound like Domics. ( ͠° ͟ʖ ͡°)