SCIENCE CLASS #3- Why is the Sky Blue?

27 Kov 2020
1 188 917 Peržiūros

Let's get a better mental model beyond just "because blue light scatters more". I stream science LIVE M-W-F 1pm PT.
Here is Sally's channel!! She is live streaming a series on evolutionary biology-
BOSE will be sending out 8 pairs of their dope 700 headphones. 4 will go to people who post about our class on Insta, Twitter, FB or TikTok. 4 will go to my favorite challenge responses or answers to questions. You can post your challenges by tagging me on any social media platform.

  • quote from 23:02 in full: The most exciting phrase to hear in science, the one that heralds new discoveries, is not “Eureka!” (I found it!) but “That’s funny …” - often attributed to Isaac Asimov, though no source can be found on the internet

    JoshuaJoshuaPrieš dieną
  • The sky is orange because the fire is huge

    Ryan DoughertyRyan DoughertyPrieš 5 dienų
  • 10:42 explains mix races too

    ShadowDugifyShadowDugifyPrieš 7 dienų
  • Shadow art with my fingers

    killakira12killakira12Prieš 12 dienų
  • I didn’t now it’s like that

    Ervin EbaloErvin EbaloPrieš 13 dienų
  • f

    chad hickmanchad hickmanPrieš 15 dienų
  • f for dead plant

    Ninja125Ninja125Prieš 19 dienų
  • You help me learn and help my depression go away. Thank you for making this battle a little easier for me

    M HdzM HdzPrieš 22 dienas
  • For the water on hand question. As long as you have a nonpolar substance between your hand and the water, the water will be repelled.

    DygitDygitPrieš 23 dienas
  • He teaches me more then school does

    LG PlayzLG PlayzPrieš 25 dienų
    • Ya

      Arjun PuriArjun PuriPrieš 14 dienų
  • I would love mark too be my teacher

    LG PlayzLG PlayzPrieš 25 dienų

    alfa ferreralfa ferrerPrieš 25 dienų
  • :)

    Angel JonguitudAngel JonguitudPrieš 25 dienų
  • My friend told me that light bounces off watermelon peels, i worry about him.

    Fat _shiba-da-inuFat _shiba-da-inuPrieš 25 dienų
  • 20:56 Scientists amazed! Research finds signs of “boomer syndrome” YEARS before it happens! Jk I love your videos, looking forward to see the next video concerning the phone scammers :D

    Michael DouMichael DouPrieš 26 dienų
  • badopa baopa

    Carie LeisterCarie LeisterPrieš 26 dienų
  • play badopa

    Carie LeisterCarie LeisterPrieš 26 dienų
  • how are you going to dislike a mark rober video

    Christina BridgeChristina BridgePrieš 27 dienų
  • Why aren't we see red light

    Jaynil ChaudharyJaynil ChaudharyPrieš mėn
  • I knew it that the son made the sky blue

    Ernie KartonadiErnie KartonadiPrieš mėn
  • 4:52 wait I am on the cout and the tv is over there

    Mason SnyderMason SnyderPrieš mėn
  • why is the sky blue? because there is water above us. we are living in a vault.

    Madison PettifordMadison PettifordPrieš mėn
  • Is water wet or not

    Lee BakerLee BakerPrieš mėn
  • Me last year: Wow! Interesting but idc Me today : Noooooo! Why did you stop the series.

    Hadi putraHadi putraPrieš mėn
  • Actually the sun is 1 out of five start. Get it?

    Triple M studioTriple M studioPrieš mėn
  • ultra-voilet and infra-red.... totally blew my mind... and i'm 25....

    Samridh TuladharSamridh TuladharPrieš mėn
  • A glove that's a joke btw Um I think it is put a i don't know my best guess is melt the water

    Federal Noob associationFederal Noob associationPrieš mėn
  • i love these classes. mark is so likeable. would love to have him as my teacher.

    TejasTejasPrieš mėn
  • forget school this is where it’s at

    mariokheartmariokheartPrieš mėn
  • The sky is blue because of SCP-8900-EX

    TheBoring OneTheBoring OnePrieš mėn
  • My science classes were so unremarkable that I don't remember even taking a science class...

    Brian WebberBrian WebberPrieš mėn
  • Today its 3/272021

    Malsalameen GamerMalsalameen GamerPrieš mėn
  • Why do moonbeams appear blue? I know that the moon reflects the sun, so is the moon absorbing all other colors except blue, so that is the one it bounces back to us on earth? (This theory doesn't quite satisfy my curiosity because it seems like the moon itself should appear blue if that were the case, but it doesn't, it's white.) Or does the moon reflect all the colors back at us, but it experiences the same atmospheric phenomenon as the light that comes directly from the sun? (This explanation doesn't seem to fit either because if that were the case, then it seems like we should expect to see red-tinted moonbeams later in the night as the moon slips beyond the horizon and the light passes through more atmosphere, but that doesn't seem to be a thing.) I'm puzzled about this one.

    Monker4444Monker4444Prieš mėn
  • F

    Max MooreMax MoorePrieš mėn
  • I went to sleep watching one of your videos woke up to this one playing. So 6 hrs of sleep X M3 * = Yeah I Just woke up mad smart.

    Love YouLove YouPrieš mėn
  • Ik that the water is blue cuz the reflection of the sky cuz I’m not stooped

    Cookie_ChibuCookie_ChibuPrieš mėn
  • Are those your old ladies tampons hanging on a string

    Jim NicholasJim NicholasPrieš mėn
  • Are those

    Jim NicholasJim NicholasPrieš mėn
  • You are the best , we need this on spanish please ,let me know if I can Help Saludos de México , Sendic Ríos

    Sendic RíosSendic RíosPrieš mėn
  • i didn't know he was a science guy like bill nye

    Ryan LundgrenRyan LundgrenPrieš mėn
  • What about green colour? If I understood correctly, sky has to be green at some point of a day

    Aziz KairidenAziz KairidenPrieš mėn
  • People ask they’re friends why is the sky blue over and over to annoy them This guy broke that

    Ziad LukovicZiad LukovicPrieš mėn
  • F for the plant...

    CosmoCosmoPrieš mėn
  • Wait is not a magic?

    OsmanAga-FGOsmanAga-FGPrieš mėn
  • Omg I never understood Science until now... from your explanations. You really made this make sense!

    Liza NapoliLiza NapoliPrieš mėn
  • i have always hated learning and anything besides playing games and after finding this youtuber i have loved science he makes it so fun

    falcon parsonsfalcon parsonsPrieš mėn
  • lube

    Kian NarayanKian NarayanPrieš mėn
  • I thought you were saying "duct tape killed Ken". And besides that I didn't understand a word of this but thanks anyway. I was one of those guys who they just "passed" through school. But today I'm loaded.

    Richard KennedyRichard KennedyPrieš mėn
  • Tomorrow's someone's birthday. Dropping a video would be a treat for us, even for the celebration.. Love you Mark. Happy birthday in advance.

    Ishuman ChaudharyIshuman ChaudharyPrieš 2 mėnesius
  • f

    Super Gaming EliteSuper Gaming ElitePrieš 2 mėnesius
  • Mark should explain this question what came first the egg or the chicken?

    Ethan LiEthan LiPrieš 2 mėnesius
  • Moon no atmosphere. Earth atmosphere

    Pilot Aiden and co pilot EditPilot Aiden and co pilot EditPrieš 2 mėnesius
  • After study 8 years of physics, now I get it. Thanks Mark!

    Chan Kok KeongChan Kok KeongPrieš 2 mėnesius
  • My review of corona is -5 out of 5 stars.

    Selorm MensahSelorm MensahPrieš 2 mėnesius
  • Wow somehow I understand why is the sky blue

    Celia PerryCelia PerryPrieš 2 mėnesius
  • But red has less frequency, so red should loss its all energy and we should see the blue sky, I am confused...

    Nazmul Hasan ZisanNazmul Hasan ZisanPrieš 2 mėnesius
  • A way to do it is aero gel

    Joshy GreeneJoshy GreenePrieš 2 mėnesius
  • There are people who are completely color blind just rare.

    Chicken PermissionChicken PermissionPrieš 2 mėnesius
  • i found this vid in my recomended and i don’t regret it

    o0oo0oPrieš 2 mėnesius
  • My dad told me about colors when I was like five

    Lilac Dreams MLP and HRTLilac Dreams MLP and HRTPrieš 2 mėnesius
  • Love this! So interesting 🙏🏽

    Caroline DanielssonCaroline DanielssonPrieš 2 mėnesius
  • can electro magnetic waves hurt you or affect hearing?

    C McnC McnPrieš 2 mėnesius
  • Its reflecting Found that out without the internet or school

    Thoticcus PrimeThoticcus PrimePrieš 2 mėnesius
  • Who wants mark as their science teacher

    BlazeBlazePrieš 2 mėnesius
  • f

    Kanchiyappan GKKanchiyappan GKPrieš 2 mėnesius
  • I literally thought it was because the ocean was blue lol thank souch

    white wolfwhite wolfPrieš 2 mėnesius
  • I still dont know why the skys

    Trenton GhorleyTrenton GhorleyPrieš 2 mėnesius
  • F (For my dead plant)

    zr0423zr0423Prieš 3 mėnesius
  • Violet, least common color in nature... Best for life on Earth!

    marc zaslowmarc zaslowPrieš 3 mėnesius
  • The sky is blue based on wave length... is Mars sky so red? I doubt it. Pictures doctored? Probably. I've been teaching this to my kids for years. Wavelength of light

    David DominguezDavid DominguezPrieš 3 mėnesius
  • I haven’t seen the video yet, but i’m guessing it’s because of the atmosphere

    PolishGuyPolishGuyPrieš 3 mėnesius
  • blue

    Mica AlpacaMica AlpacaPrieš 3 mėnesius
  • What is energy

    BoltyBoltyPrieš 3 mėnesius
  • imdont understand

    LetzPLaz 44LetzPLaz 44Prieš 3 mėnesius
  • The dislikes are from school physics teachers

    Laboni HazraLaboni HazraPrieš 3 mėnesius
  • I think I want to do home schooling now

    Jaxon ChangJaxon ChangPrieš 3 mėnesius
  • The sky is blue because it is, you can ask anybody, it isn't rocket science ; )

    twinpillarstwinpillarsPrieš 3 mėnesius
  • K. ,. Mm m?

    Aubri Garcia'KamauAubri Garcia'KamauPrieš 3 mėnesius
  • Anyone seeing this after 2020

    lucy dunsheelucy dunsheePrieš 3 mėnesius
    • I’m seeing this on 10 44 tues jan 26

      ABC 123ABC 123Prieš 3 mėnesius
  • This guy teaches better then the best teacher in my school:p

    guesticalguesticalPrieš 3 mėnesius
  • Thank you!

    sue Hullsue HullPrieš 3 mėnesius
  • She has a PhD for Oxford but can’t understand why water makes your hand wet???

    CleborpCleborpPrieš 3 mėnesius
  • im blind though.... jk ;)

    ChupacabraChupacabraPrieš 3 mėnesius
  • Can't u start these series again

    PARAM SHAHPARAM SHAHPrieš 3 mėnesius
    • Plz do it

      PARAM SHAHPARAM SHAHPrieš 3 mėnesius
  • Hi mark! Needed to watch this from school lol 😂

    TobiTechBoyTobiTechBoyPrieš 3 mėnesius
  • Simple

    Laura AlagiaLaura AlagiaPrieš 3 mėnesius
  • Q : If we pass a white light through a prism will it break into infra-red and ultra-voilet rays?

    HACKERISTIC 499HACKERISTIC 499Prieš 3 mėnesius
  • oh i took this class haha

    minecraft dj Alexminecraft dj AlexPrieš 3 mėnesius
  • i missed a lot of classes

    minecraft dj Alexminecraft dj AlexPrieš 3 mėnesius
  • F for plant

    BenBenPrieš 3 mėnesius
  • That was so f*** awesome! Its often really fascinating what the rules are and how the World works! Thanks for doing these videos!

    Berlin GreekBerlin GreekPrieš 4 mėnesius
    • @Joe Mama He is a science-freak indeed! YEAH SCIENCE!

      Berlin GreekBerlin GreekPrieš 3 mėnesius
    • The freak

      Joe MamaJoe MamaPrieš 4 mėnesius
  • The interlacing man

    TewanTewanPrieš 4 mėnesius
  • 1:56 the moment i realized what he was referring to. it is literally so unnoticable.

    AurelAurelPrieš 4 mėnesius
  • dip your hand in oil then put in water

    Kamalesh SKamalesh SPrieš 4 mėnesius
  • Does transparent stuff absorb light or reflect ? Hmm for example plastic sheet, I think light will go through it . Will it reflect or absorb ? Mark ?

    Vedant KatiraVedant KatiraPrieš 4 mėnesius
  • F

    glitchglitchPrieš 4 mėnesius
  • F for my plant

    Pavan MekaPavan MekaPrieš 4 mėnesius
  • Blue sky = Water outside of dome firmament.

    Most interesting man in the hoodMost interesting man in the hoodPrieš 4 mėnesius
    • @Aura ش Exactly. Their "proof" has been disected, torn to shreds, and proven false so bad that they wiped the mainstream internet clean of the topic and even removed all related educational content on YT in 2017 and replaced them all with joke/prank videos. Very strange move for something labeled as a silly conspiracy theory. I mean why not also remove all the UFO, bigfoot, and lochness monster videos too right?

      Most interesting man in the hoodMost interesting man in the hoodPrieš 4 mėnesius
    • Facts nobodies ever been to space

      Aura شAura شPrieš 4 mėnesius
  • The blueness on the world globe, is the sky ;)

    arms behind Backarms behind BackPrieš 4 mėnesius
  • is the sky blue because the sun reflects blue rase from the sky

    yeet yeet yay O,Brienyeet yeet yay O,BrienPrieš 4 mėnesius