55 Gallon Drum Collapse

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  • čas přidán 14. 09. 2020
  • When the air inside a 55 gallon steel drum is pumped out, we see the weight of the atmosphere push inward with 101 kPa of pressure.
    The top and bottom of the drum has a radius of about 30 centimeters, and it is about 1 meter tall. This means the atmosphere pushes down on the top of the drum with about 6,500 pounds of force! We leave the calculation of the force on the sides as an exercise to the student.
    We pump on the drum with a Varian SD-200 vacuum pump. Usually the initial collapse will occur after a minute or two. The drum seen here actually underwent initial collapse after 35 seconds of pumping; the footage was edited to make it more watchable.
    For more details on our setup, see sciencedemonstrations.fas.har...

Komentáře • 28

  • @The-court-jester
    @The-court-jester Před 2 lety +1

    This is the evolution of me going to bed and getting cold

  • @technobird22
    @technobird22 Před 3 lety +9

    --> Warning to headphone users!

  • @mxcollin95
    @mxcollin95 Před rokem +1

    So that’s what the Titan sub experienced…crazy. And that’s just with normal atmospheric pressure, how much faster, stronger and more violent would the implosion be under the millions of pounds of force acting on the total surface’s area of the submarine?

  • @DanielSMatthews
    @DanielSMatthews Před 3 lety +9

    Neat, now put just enough liquid air in it for it to reinflate when you put the cap on and let it warm up.

    • @tolga24
      @tolga24 Před 3 lety +2

      I would love to see that as well.

  • @riven_personal
    @riven_personal Před 3 lety +2

    If there is no atmospheric pressure, what would happen

  • @riven_personal
    @riven_personal Před 3 lety +2

    I think we need more energy to pull out the air from drum than atmospheric pressure...

  • @dennisnebgen9049
    @dennisnebgen9049 Před rokem

    could you use a vacuum pump and pull the air out of the barrel to say 25 inches of mercury without it collapsing?

  • @kguy152000
    @kguy152000 Před 3 lety +3

    It's always incredible to me how our human bodies (or any organisms) are resisting this much atmospheric pressure all the time, and that we don't just simply collapse.

    • @NatSciDemos
      @NatSciDemos  Před 3 lety +4

      Luckily the insides of our bodies are not at vacuum, so the same pressure that's pushing inward is also pushing outward.

  • @PrinceofPwnage
    @PrinceofPwnage Před 5 měsíci

    I work at a CNC shop, sometimes we use a 55 gal drum vacuum to suck up fluids or coolant, im always nervous of the drum exploding lol. Could it? We use the Exair Drum Vac High Lift Reversible

  • @MusicSoundPlayer
    @MusicSoundPlayer Před 2 lety

    I was hoping you made a vacuum airship

  • @NicleT
    @NicleT Před rokem

    I always thought these was 45 Gal.

  • @vdypw5853
    @vdypw5853 Před 3 lety +2

    😯🧐

  • @emiliedejonghe1753
    @emiliedejonghe1753 Před 3 lety +1

    Pov your watching this cause your chemistry teacher made you.😅😂😛

  • @obreti.svobodu
    @obreti.svobodu Před 3 lety +1

    И вот за это "учёные" получают деньги...

  • @robertpitt8418
    @robertpitt8418 Před 3 lety

    Earth

  • @jojojorisjhjosef
    @jojojorisjhjosef Před 3 lety +5

    weak drum, can't even take the 1 atm on his own.

  • @royalfolkspark
    @royalfolkspark Před 3 lety

    101 kPa of pressure. ?????
    How many pounds ?????
    What lbs started the collapse,?
    What lbs ended the collapse ?

  • @JNET_Reloaded
    @JNET_Reloaded Před 3 lety +1

    Implode you mean!

  • @tamaseduard5145
    @tamaseduard5145 Před 3 lety +1

    🙏👍🙏❤️🙏🤪🤫

  • @maxcompress9732
    @maxcompress9732 Před 3 lety +1

    Even the plastic hose did not collapse. Hmm then, make me a device with that plastic :))))))

  • @julianaimiranda164
    @julianaimiranda164 Před 3 měsíci

    🔒👁️👁️imagino.... alguém com 📱 🧤 no carro... banheiro... reunião....em QQ lugar....se alimentando do bem de meu ❤.....sorrindo...se preparando com as armas do Papai do céu que habita em mim. Promessa: isto jamais nunca NEVER acabará mesmo lado a lado🙋‍♀️✅🪄🔋🔨⛓️⛓️✒️🖋️💌

    • @julianaimiranda164
      @julianaimiranda164 Před 3 měsíci

      Serei seu vício preferido. Sua arma infalível. Sua droga preferida. Melhor iate que já 🔱 no seu 🪡📧R ♏📧⤴️🎯

  • @ImTheReal
    @ImTheReal Před 3 lety +2

    Everything went well because the gallon doesn't had COVID-19 😄