SCIENCE CLASS #3- Why is the Sky Blue?

27 mar 2020
1 115 414 Skatījumi

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.

  • After study 8 years of physics, now I get it. Thanks Mark!

    Chan Kok KeongChan Kok KeongPirms dienas
  • My review of corona is -5 out of 5 stars.

    Selorm MensahSelorm MensahPirms 2 dienām
  • Wow somehow I understand why is the sky blue

    Celia PerryCelia PerryPirms 2 dienām
  • 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 ZisanPirms 5 dienām
  • A way to do it is aero gel

    Joshy GreeneJoshy GreenePirms 5 dienām
  • There are people who are completely color blind just rare.

    Chicken PermissionChicken PermissionPirms 6 dienām
  • i found this vid in my recomended and i don’t regret it

    Yuritzi VazquezYuritzi VazquezPirms 9 dienām
  • My dad told me about colors when I was like five

    Lilac Dreams MLP and HRTLilac Dreams MLP and HRTPirms 9 dienām
  • Love this! So interesting 🙏🏽

    Caroline DanielssonCaroline DanielssonPirms 10 dienām
  • can electro magnetic waves hurt you or affect hearing?

    C McnC McnPirms 12 dienām
  • Its reflecting Found that out without the internet or school

    Thoticcus PrimeThoticcus PrimePirms 12 dienām
  • Who wants mark as their science teacher

    Rebel XRebel XPirms 13 dienām
  • f

    Kanchiyappan GKKanchiyappan GKPirms 13 dienām
  • I literally thought it was because the ocean was blue lol thank souch

    white wolfwhite wolfPirms 14 dienām
  • I still dont know why the skys

    Trenton GhorleyTrenton GhorleyPirms 16 dienām
  • F (For my dead plant)

    zr0423zr0423Pirms 18 dienām
  • Violet, least common color in nature... Best for life on Earth!

    marc zaslowmarc zaslowPirms 21 dienas
  • 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 DominguezPirms 21 dienas
  • I haven’t seen the video yet, but i’m guessing it’s because of the atmosphere

    PolishGuyPolishGuyPirms 21 dienas
  • blue

    Micaela BabicMicaela BabicPirms 22 dienām
  • What is energy

    BoltBoltPirms 26 dienām
  • imdont understand

    LetzPLaz 44LetzPLaz 44Pirms 27 dienām
  • The dislikes are from school physics teachers

    Laboni HazraLaboni HazraPirms 29 dienām
  • I think I want to do home schooling now

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

    twinpillarstwinpillarsPirms Mēneša
  • K. ,. Mm m?

    Aubri Garcia'KamauAubri Garcia'KamauPirms Mēneša
  • Anyone seeing this after 2020

    lucy dunsheelucy dunsheePirms Mēneša
    • I’m seeing this on 10 44 tues jan 26

      ABC 123ABC 123Pirms Mēneša
  • This guy teaches better then the best teacher in my school:p

    guesticalguesticalPirms Mēneša
  • Thank you!

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

    CleborpCleborpPirms Mēneša
  • im blind though.... jk ;)

    ChupacabraChupacabraPirms Mēneša
  • Can't u start these series again

    • Plz do it

  • Hi mark! Needed to watch this from school lol 😂

    TobiTechBoyTobiTechBoyPirms Mēneša
  • Simple

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

  • oh i took this class haha

    minecraft dj Alexminecraft dj AlexPirms Mēneša
  • i missed a lot of classes

    minecraft dj Alexminecraft dj AlexPirms Mēneša
  • F for plant

    BenBenPirms Mēneša
  • 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 GreekPirms Mēneša
    • @Joe Mama He is a science-freak indeed! YEAH SCIENCE!

      Berlin GreekBerlin GreekPirms Mēneša
    • The freak

      Joe MamaJoe MamaPirms Mēneša
  • The interlacing man

    TewanTewanPirms Mēneša
  • 1:56 the moment i realized what he was referring to. it is literally so unnoticable.

    AurelAurelPirms Mēneša
  • dip your hand in oil then put in water

    Kamalesh SKamalesh SPirms Mēneša
  • 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 KatiraPirms Mēneša
  • F

    Not TobyNot TobyPirms Mēneša
  • F for my plant

    Pavan MekaPavan MekaPirms Mēneša
  • Blue sky = Water outside of dome firmament.

    Most interesting man in the hoodMost interesting man in the hoodPirms Mēneša
    • @Dying Energy 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 hoodPirms Mēneša
    • Facts nobodies ever been to space

      Dying EnergyDying EnergyPirms Mēneša
  • The blueness on the world globe, is the sky ;)

    Wrapped GoodsWrapped GoodsPirms Mēneša
  • is the sky blue because the sun reflects blue rase from the sky

    yeet yeet yay O,Brienyeet yeet yay O,BrienPirms Mēneša
  • This was so awesome, thank you SO much Mark!! You're legitimately a great teacher, I just made my sister and mom watch this with me and they loved it too. Keep doing this, I think it's really good for the world.

    Nick ConsidineNick ConsidinePirms Mēneša
  • f

    Alyssa EpsteinAlyssa EpsteinPirms 2 Mēnešiem
  • 14:37 was that a voice crack

    William FuentesWilliam FuentesPirms 2 Mēnešiem
  • All he said was lies, it was obviously a gender reveal that made the sky blue

    papyurs9RBLXpapyurs9RBLXPirms 2 Mēnešiem
  • well THIS is gonna make high school physics easier idk i've never been in high school

    b r u hb r u hPirms 2 Mēnešiem
  • corona rating science teacher man: 0/10 me: 108409284093809859043805803280850/ 10

    デッド。デッド。Pirms 2 Mēnešiem
  • 3:28 "We'll just get right into it" Is that ironic?

    Parker CarlsonParker CarlsonPirms 2 Mēnešiem
  • apparently, the buoyancy thing is not that hard lol

    Obaidullah AhmadObaidullah AhmadPirms 2 Mēnešiem
  • Did u notice the voice crack

    nopenopePirms 2 Mēnešiem
  • OK Google... Count down 8 min... 😁

    Irene AnousakiIrene AnousakiPirms 2 Mēnešiem
  • not true

    Charles TorresCharles TorresPirms 2 Mēnešiem
  • In germany sundets are like coton candy (blue and pink)

    Atėnė Er.Atėnė Er.Pirms 2 Mēnešiem
  • I think he really needed to go to the toilet towards the end

    Rheeza !Rheeza !Pirms 2 Mēnešiem
  • I just wish that mark rober can be my science teacher-

    LilieKatrina_movedLilieKatrina_movedPirms 2 Mēnešiem
  • I'm a grown adult, I knew every bit of this going in, and I was still highly entertained.

    Doctors_TARDISDoctors_TARDISPirms 2 Mēnešiem
  • The divergent straw statistically guarantee because ferryboat undoubtedly saw an a anxious bit. efficacious, standing april

    Brendan PassarellBrendan PassarellPirms 2 Mēnešiem
  • wow.this is great

    HANO ROAMHANO ROAMPirms 2 Mēnešiem
  • He seems very akward lol

    *?Questions?**?Questions?*Pirms 2 Mēnešiem
  • Wow that’s cool

    David WheelerDavid WheelerPirms 2 Mēnešiem
  • 9:50 can we admire that sound affect and how perfect it was lol

    Chris HoopsChris HoopsPirms 2 Mēnešiem
  • After watching this, I'm wondering how does bleach work?

    Daniel BeattyDaniel BeattyPirms 2 Mēnešiem
  • This has been great. Appreciate your enthisiasm too. Learned so much.

    Daniel BeattyDaniel BeattyPirms 2 Mēnešiem
  • mark i came across your videos an i have a important question to ask you about this video would the electromagneitc waves be the same for a colour blind person or would it be different

    BladesbryBladesbryPirms 2 Mēnešiem
  • Green has left the chat

    34-002534-0025Pirms 2 Mēnešiem
  • I thought the water reflects on the sky or the other way round

    7The cool cat77The cool cat7Pirms 2 Mēnešiem
  • why is water wet

    boss masterboss masterPirms 2 Mēnešiem
  • 7:08

    Joshua Spice-AraujoJoshua Spice-AraujoPirms 2 Mēnešiem
  • Cool videos

    MeMePirms 2 Mēnešiem
  • because god loves the infantry

    ZƎRØZƎRØPirms 2 Mēnešiem
  • R.I.P my plant

    Charlie LambourneCharlie LambournePirms 2 Mēnešiem
  • Mark look so nervous. Lol

    t wt wPirms 2 Mēnešiem
  • Why is the sky not violet?

    Darrel CollinsDarrel CollinsPirms 2 Mēnešiem
  • I thought that science is lousing intrest but it is true which we all know that the teacher is not cool like mark

    Rushikesh KarleRushikesh KarlePirms 2 Mēnešiem
  • Nobel gases is the reason for all the different colors of the sky. God created such an amazing beautiful flat stationary earth!

    Josh the Flat Earth JediJosh the Flat Earth JediPirms 2 Mēnešiem
    • why do you believe the earth is flat?

      Psych SpellPsych SpellPirms 13 dienām
    • Also the firmament above holds back the waters. Meaning what weve been told is space is actually water and nobody is going there.

      Josh the Flat Earth JediJosh the Flat Earth JediPirms 2 Mēnešiem
  • i will not mind if he is my physics teacher

    Anna Young_26Anna Young_26Pirms 2 Mēnešiem
  • i want to work at nasa because of mark that is the ony reason i get good grades

    Anna Young_26Anna Young_26Pirms 2 Mēnešiem
  • F💔🥲

    JDM _King15JDM _King15Pirms 2 Mēnešiem
  • Mark Rober, to me, always seemed like one of the coolest dudes on LVworld. I forgot that someone who worked at NASA must've been a nerd. Love seeing this passion

    Jazz StewJazz StewPirms 2 Mēnešiem
  • In order to see the reds well, make sure you use an old incandescent flashlight. If you use a modern LED flashlight, pick one with a high CRI and R9 value.

    Rob HRob HPirms 2 Mēnešiem
  • he needs to do more of these

    Isaacsal0Isaacsal0Pirms 3 Mēnešiem
  • Mark would be the coolest teacher in school

    Aarsh ChokshiAarsh ChokshiPirms 3 Mēnešiem
  • Ithought of kids said because I love you ha hanot to worry

    Brijinder S D singhBrijinder S D singhPirms 3 Mēnešiem
  • If Mark was my science teacher I would actually like the classes

    Universe FloofballUniverse FloofballPirms 3 Mēnešiem
  • but seriously why would anyone give this video a thumbs down? and then 505 dislikes, why? Mark you are the man! Great video again, subscribed!

    Sherard HallSherard HallPirms 3 Mēnešiem
  • What does it mean that the particles resonate with other particles?

    Ondrej HrdyOndrej HrdyPirms 3 Mēnešiem
  • Mark's videos are great, building every kind of device, testing, teaching.

    Ernesto NoiranErnesto NoiranPirms 3 Mēnešiem
  • I,m thinking all water reflects on 🌎 earth

    Christi ElmoreChristi ElmorePirms 3 Mēnešiem
  • I had a better understanding about this concept prior to your video..

    King MantaKing MantaPirms 3 Mēnešiem
  • Mark you areee sooooooo goooddd at presantions

    Discus ChannelDiscus ChannelPirms 3 Mēnešiem
  • So if the nitrogen and oxygen like blue the most why aren’t they the ones instantly absorbed and instead reflected and showed to us?

    MaddixMaddixPirms 3 Mēnešiem
  • @sally dont put your hand in the water to get wet

    Daniel KrugerDaniel KrugerPirms 3 Mēnešiem
  • I thing he needs a intro with a song added like if you agree

    Durant GillelandDurant GillelandPirms 3 Mēnešiem