SCIENCE CLASS #2- Does Farting Make You Weigh Less?

25 Kov 2020
1 711 468 Peržiūros

This is a juicy one. 70% people get this one wrong. I stream science LIVE M-W-F 1pm PT.

  • I stream science LIVE M-W-F at 1pm PT. Thanks for being here!

    Mark RoberMark RoberPrieš metus
    • I think the shape of the bottom is why it doesn't float - Malakai (6)

      Malakai ThompsonMalakai ThompsonPrieš 2 mėnesius
    • you are welcome :

      IsuIsuPrieš 2 mėnesius
    • Ok

      Balboa RockyBalboa RockyPrieš 2 mėnesius
    • @William Pantel look no o

      Kittenz IwnlKittenz IwnlPrieš 4 mėnesius
    • Wish you where my science teacher I LOVE science!! And question .. whare would you teach? And will you ever teach collage of middle school ?

      Grace RiveraGrace RiveraPrieš 5 mėnesių
  • I actually got 100% on the "will it float" segment!!

    ComitComitPrieš dieną
  • 0:25 wonder how many people caught the joke. and while im 25 seconds in im gonna say no, it makes you weight more

    dirtrider88dirtrider88Prieš 5 dienų
  • I've been telling people this for years and they rarely believe me! I'm so glad I can finally back that up by showing them this video!

    Chris HarrisonChris HarrisonPrieš 8 dienų
  • Make a tin foil boat

    Internet TrollInternet TrollPrieš 10 dienų
  • Or does losing some hot air make you weigh more?

    Internet TrollInternet TrollPrieš 10 dienų
  • 8:07 is float.

    Eashan KakullaEashan KakullaPrieš 11 dienų
  • So we kinda like balloons? If we let the smelly air out we become heavier. Just like balloons.

    killakira12killakira12Prieš 13 dienų
  • Are you live right now?

    Cali FoxworthCali FoxworthPrieš 13 dienų
  • no

    Glenn QuagmireGlenn QuagmirePrieš 14 dienų
  • so if fart a tons of time in a ballon its gonna float !!! lol

    FrostFrostPrieš 15 dienų
    • Yes lol

      killakira12killakira12Prieš 13 dienų
  • Depending on the liquid or gas you are in

    Red GumRed GumPrieš 19 dienų
  • It doesn't matter how many life jackets you put on some people, you can't make them less dense...

    Andrew WalkingtonAndrew WalkingtonPrieš 20 dienų
  • i love your videos

    Robin Kessler-BraunRobin Kessler-BraunPrieš 20 dienų
  • It floats

    Herb MolinaHerb MolinaPrieš 21 dieną
  • Technically, "weight" is mass x gravity. When you fart, you lose some mass, ergo you weigh less. What you're actually saying here is that we become more dense when we fart, and therefore the resultant force of gravity vs buoyancy is greater in the direction of buoyancy, hence why the scales would show you as "heavier". But you're still losing weight when you fart.

    Jim ShepherdJim ShepherdPrieš 21 dieną
  • Mark, thank you for this video because you answered my 7 year old minds question. Keep on going dude!

    AREA 51 ALXAREA 51 ALXPrieš 22 dienas
  • 3:25 lol :D

    Pék BackerPék BackerPrieš 23 dienas
  • hi!

    Braxten RagerBraxten RagerPrieš 23 dienas
  • more mass via the shape

    Evan SiscoEvan SiscoPrieš 24 dienas
  • Best Teacher Ever

    CatalCatalPrieš 24 dienas
  • :)

    Angel JonguitudAngel JonguitudPrieš 25 dienų
  • NO

    Salim IbrahimSalim IbrahimPrieš 28 dienų
  • These videos are short My science class last 70 mins

    Keren LiilaKeren LiilaPrieš mėn
  • This was 1 year ago

    Abigayle GamingAbigayle GamingPrieš mėn
  • Thanks so much for the life advice too!

    Daniel ReadsDaniel ReadsPrieš mėn
  • Oh that’s why wrestlers grunt a lot, they are trying to fart so they can weigh more to gain some power over their opponents

    Steven ThompsonSteven ThompsonPrieš mėn
  • It’s funny that yes you weigh more but you have less mass just think about that for a moment

    Marcus WildeyMarcus WildeyPrieš mėn
  • Can you move to Mansfield Texas to be my teacher

    3BK BABY3BK BABYPrieš mėn
  • I am 43 and loving this. I wish I would have had a teacher like him. Mark make sure you do stuff like this in your high school class room bc it makes all the difference

    Natalie MishoeNatalie MishoePrieš mėn
  • I don't want to eat a lot of beans to find out - can someone just confirm the answer?

    Miss Wendy JaneMiss Wendy JanePrieš mėn
  • My guess for the "Why the sky is blue" The sky reflects off the ocean and probably has to do something with atmosphere changes it I think.

    Federal Noob associationFederal Noob associationPrieš mėn
  • My employer coerced me into teaching an evening class at a local JC. The subject was Printed Circuit Board production - drilling and routing. I dreaded the thought. Thankfully I had taken a speech class in college so I at least had a clue on how to talk to 45 people. It turned out that I actually enjoyed the "give and take" between myself and the students. It was more rewarding than I expected.

    Greg SullivanGreg SullivanPrieš mėn
  • Awesome educational video

    Jesus StoutJesus StoutPrieš mėn
  • Nursing home answer: Ethel! Where are my teeth?!?

    Reptilian Apple SalesmanReptilian Apple SalesmanPrieš mėn
  • Except a Ted talk tells you fat leaves your body via air. I don’t know who to believe...

    Heather SmiliekiwiHeather SmiliekiwiPrieš mėn
  • Its grown up so fast 1 year

    Donald Duck 82 2.0Donald Duck 82 2.0Prieš mėn
  • Gonna hold my farts from now on

    Dragon TailDragon TailPrieš mėn
  • So what was the answer to the title of the video?

    Josh WallisJosh WallisPrieš mėn
  • The fine step-aunt fortuitously exercise because wrinkle virtually step outside a elastic carrot. nonstop, talented babies

    Ryan HanniganRyan HanniganPrieš mėn
  • "The earth moves underneath ever so slightly" when jumping, - according to the model it moves at 15° an hour which would mean it is rotating at about 1000 miles an hour at the equator. I guess ever so slightly is subjective

    Mike 808Mike 808Prieš mėn
  • But are farts not under compression in the bowel?

    Giorgi TsiklauriGiorgi TsiklauriPrieš mėn
  • I mean, give this man what he needs to become a teacher. He'll be the coolest high school teacher in North America.

    fulSTakkfulSTakkPrieš mėn
  • where's one of your 1st youtube videos you said you would put in the comments below (25mins 22secs)

    A UGUSTA UGUSTPrieš mėn
  • That is totally not where I thought you were going with this, right up to the end. I was thinking in terms of how the flatulence originates, which is decomposing organic matter. Before it decomposes, it is solid. Once it becomes gas, it can leave the body. So if you compare the weight before the decomposition to the weight after, all other things being equal, you weigh less. But if you don't measure weight until after the digested food has decomposed, then of course the buoyancy is the driving principle.

    adriancombeadriancombePrieš mėn
  • Ayyyyy welcomd

    Federal Noob associationFederal Noob associationPrieš mėn
  • I would relive the horrible experience that was high school just to have Mark Rober as my physics teacher

    NicoolioNicoolioPrieš mėn
  • He had the chance to throw rose in the ocean and didn't. Idk what to make of this.

    TheLostArceusTheLostArceusPrieš mėn
  • OOOPS Just gained some weight!! So that’s why girls don’t fart.

    Randolph TorresRandolph TorresPrieš mėn
  • This is awesome! Often my farts feel highly pressurized. Is it possible that if I packed enough fart into a small colon the density of said fart would be greater inside me than that of the air around me?

    moneyblackbloodmoneyblackbloodPrieš mėn
  • will the results b the same in a vacuum?

    jeff buckjeff buckPrieš mėn
  • to make something nutraly boyent cant you just caculate the desity of both the block of wood and the bucket of water (mass over volume) and make them the same

    Nathan HazzardNathan HazzardPrieš mėn
  • Hahahaha 20:48 😂

    Boni SBoni SPrieš mėn
  • No farting does not make you weigh less, because a fart is a gas which is just stored inside your stomach so when you fart gas weighs nothing becuase its almost air but they have differences but air weighs nothing and thats onr thing gas and air have in common. So technically no farting does not make you weigh less

    Kyla parkinsonKyla parkinsonPrieš mėn
  • Man I'm still watching this video to see what he says, geez man a simple yes or no would be great. I'm assuming mathematically speaking it has to make you weight less it's less of something less of something means less you, right.

    michael revelsmichael revelsPrieš mėn
  • your the best youtuber

    Khalid AhmedKhalid AhmedPrieš 2 mėnesius
  • Mark: it isn’t that easy Me: OH NO! ITS IMPOSSIBLE!

    Patricia AnguianoPatricia AnguianoPrieš 2 mėnesius
  • POV: You yelled at a dude who worked for NASA because he used weight instead of mass for density. Then seconds later he addresses it.

    Standard BuiltStandard BuiltPrieš 2 mėnesius
  • I always watch one of these videos to help encourage me when I'm cycling at home

    Theron TrickshotsTheron TrickshotsPrieš 2 mėnesius
  • float

    ZannaZannaPrieš 2 mėnesius
  • float

    ZannaZannaPrieš 2 mėnesius
  • make a metal boat

    ZannaZannaPrieš 2 mėnesius
  • You will weigh more.

    ZannaZannaPrieš 2 mėnesius
  • Im gonna go to school again just to have Mark Rober as teacher. XD

    Mullvaden83Mullvaden83Prieš 2 mėnesius
  • Depends on how many farts you take out.While only 1 fart weighs 0 pounds, a lot more will weigh more, and while the farts are inside you, you weigh more.When you get them out, that weight gets out, and you weigh less.

    1K subbs with awesome videos1K subbs with awesome videosPrieš 2 mėnesius
  • So before even clicking on this video I had a whole thought process of “well considering that gas is trapped inside you, it should technically be helping you in the direction of being lighter the same way helium makes a balloon go up instead of weigh more. So getting rid of it technically makes you weigh more, Like a balloon loosing some of its helium wouldn’t float as high. This comment was written before watching the video at all so we’ll see if I’m right.

    Speedcuber975Speedcuber975Prieš 2 mėnesius
  • I was waiting for lord watermelon to appear

    Deval MaheshwariDeval MaheshwariPrieš 2 mėnesius
  • I'm 32, and I just had a WHAT?! moment, Thank you.

    Carmen YeungCarmen YeungPrieš 2 mėnesius
  • This guy explains stuff more clearly than my Science teacher....

    SQR OpticSQR OpticPrieš 2 mėnesius
  • What's making him not pop is that there is no idiots screaming in class.

    Epic BoiEpic BoiPrieš 2 mėnesius
  • Make a bubble of metal it will float

    Duke PfeifferDuke PfeifferPrieš 2 mėnesius
  • Tin foil boat Edit: ye I got it, mad

    Ebad RahmanEbad RahmanPrieš 2 mėnesius
  • Awwwe mark loves playing with his dolls lol

    Roblox playerRoblox playerPrieš 2 mėnesius
  • #1 Density 2:30 #2 Boiancy 13:10 #3 Gas is less dense than air. 17:10 #4 summerisation 17:39

    zZILLAa 2zZILLAa 2Prieš 2 mėnesius
  • The agreeable mistake largely burn because capital morally warm following a joyous population. warlike, insidious afghanistan

    hoon taehoon taePrieš 2 mėnesius
  • I totally thought this was live right now.

    ImJustSnipeHuntingImJustSnipeHuntingPrieš 2 mėnesius
  • Why do witches float?

    ImJustSnipeHuntingImJustSnipeHuntingPrieš 2 mėnesius
  • Make a boat

    ImJustSnipeHuntingImJustSnipeHuntingPrieš 2 mėnesius
  • i just did density like 2 days ago in my school and my teacher couldnt explain me that in 60 mins but mark explained to me in 10 mins:)

    IsuIsuPrieš 2 mėnesius
  • if he was my teacher i would be willing to go to school

    IsuIsuPrieš 2 mėnesius
  • my farts are under so much pressure that they're denser than air

    camo lioncamo lionPrieš 2 mėnesius
  • I’m watching this in school on my phone for a work thing and it’s so boring

    Snow At seaSnow At seaPrieš 2 mėnesius
    • I wanna go home

      Snow At seaSnow At seaPrieš 2 mėnesius
  • I love that I’m not the only one who thinks about stuff like this

    Charles ReidCharles ReidPrieš 2 mėnesius
  • He spent 30 minutes talking about how farts and weight are linked?

    Gummy_64Gummy_64Prieš 2 mėnesius
  • Weight is mass times gravity . Mass is like total particles in a body . I think weight not loss if we fart

    The Fat Dragon !The Fat Dragon !Prieš 2 mėnesius
  • Fish some have balancing organs called statocyst Remember shark don't have it so it has to swim continue

    The Fat Dragon !The Fat Dragon !Prieš 2 mėnesius
  • That red line is also called keel of the ship

    The Fat Dragon !The Fat Dragon !Prieš 2 mėnesius
  • How about increasing surface area is directly proportional to byounce force

    The Fat Dragon !The Fat Dragon !Prieš 2 mėnesius
  • Does farting makes you weigh it possible somebody watched this more than s minute?

    Miroslav DanilovMiroslav DanilovPrieš 2 mėnesius
  • I was looking for something interesting to watch today.. And umm.... Well i guess i found something

    Neon ReaperNeon ReaperPrieš 2 mėnesius
  • Lol I hope I’m in your class

    Polar9KPolar9KPrieš 2 mėnesius
  • There's a few other ways of looking at it. Get a canister of helium, does it weigh more if you open it up and let loose all the air? Answer no it doesn't, but helium weighs less than air. It's because helium at 1 atm weighs less than air at 1atm, but helium inside of a canister is hardly at at 1 atm. Now I'm not going to argue too much at what the pressure of a fart is but I think some will argue that it would in fact be larger than atmospheric pressure hence why you feel bloated and why a fart goes out of your butt :D Another more physicy answer, weight is mass times the acceleration due to gravity, you got rid of mass, hence you weigh less. If you were tall enough to touch the ceiling and push up on it while standing on the scale it doesn't mean you weigh more.

    Mike BMike BPrieš 2 mėnesius
  • flot

    Steven ChaoSteven ChaoPrieš 2 mėnesius
  • What about massive dumps?

    Jack FortunatiJack FortunatiPrieš 2 mėnesius
  • The answer is actually C) farting makes you both lighter and heavier. In a vacuum the loss of the fart will cause you to lose mass. In a fluid less buoyant. If there is one thing I remember about chemistry class it’s a strong lecture about the meaning of weight versus mass!

    Jack FortunatiJack FortunatiPrieš 2 mėnesius
  • The helium balloon floats in air because the balloon takes up a lot of space, correct? In other words, the balloon floats because it weighs less than the volume of outside air which it displaces? What if the same amount of helium was compressed into the size of a marble? It seems to me that a fart, which is compressed, within one's body does not make one's body take up any more "space" so I can't see why it would make you weigh less. Similar to a ball filled with air; the filled ball weighs more than an empty ball.

    munsters2munsters2Prieš 2 mėnesius
  • If mark does actually become a teacher I’m revoking my diploma and going back

    Garrett BrooksGarrett BrooksPrieš 2 mėnesius
  • Forgot google classroom for online learning

    MyselfMyselfPrieš 2 mėnesius
  • You take such a round-about way to answer a question. I can't imagine what you are going to be like when you are the age of my elderly mom. Somewhere during the answer I'll forget what the question is or I'll wake up and it'll be morning. 🤣 LOL

    Political FoolishnessPolitical FoolishnessPrieš 2 mėnesius
  • By conservation of energy, energy can never be created nor destroyed. However my fart turns from gas to gas, therefore energy is conserved but tiny mass is lost😂😂

    The AI Powered CaptionerThe AI Powered CaptionerPrieš 2 mėnesius