Why Snatch Blocks are AWESOME (How Pulleys Work) - Smarter Every Day 228

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  • 게시일 2019. 12. 05.
  • Get your first box of KiwiCo free by going to www.kiwico.com/smarter
    Click here if you're interested in subscribing: bit.ly/Subscribe2SED
    ⇊ Click below for more links! ⇊

    If I did this right then these are Amazon affiliate links to purchase a snatch block. (I have no idea what I'm doing)
    $22 - black 8 ton - 5 stars - amzn.to/2DMR4s8
    $25 - red 8 ton - amzn.to/355WoTi
    $29 - orange 10 ton amzn.to/2OWQFdb
    We discussed Snatch Blocks on this episode of the No Dumb Questions podcast:
    If you'd like to 3D print the Snatch Blocks and pulleys we use in this video they are here: www.thingiverse.com/thing:4022579
    Read Plutarch's account of Archimedes:
    The wikipedia page on Block and Tackle is really good:
    I thought this was a great video about why you should put blankets on your winch cable: krclip.com/video/gPba-34ARZY/비디오.html
    Chris Hadfield is a veteran Canadian Astronaut and a great friend of science. He engages the public often and is a great follow on twitter: Cmdr_Hadfield
    He can be contacted for speaking engagements here:
    Jeremy Fielding has his own KRclip channel which you can enjoy here!
    A special thank you to @MurkyWanders on Twitter for videoing the Atlantis exhibit for us.
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    Warm Regards,
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댓글 • 11 420

  • SmarterEveryDay
    SmarterEveryDay  개월 전 +2205

    Snatch Block!
    I want to take a moment to thank those of you who support Smarter Every Day on Patreon. I'd also like to point out 2 things about this video.
    #1. You'll notice Jeremy Fielding is in this video. He's the "Contraption Fabricator" that's started working with me now because of your support on Patreon. He's a great designer, father, and friend. You'll be seeing more of Jeremy around thanks to those who support at www.patreon.com/smartereveryday/
    #2. If you'd like to 3D print the Snatch Blocks and pulleys we use in this video they are here: www.thingiverse.com/thing:4022579
    #3. I really enjoy KiwiCo and I think you will too. I got them as a Christmas gift for my children years ago, and it was a huge hit. It was after that experience that I reached out to their team and asked if I could advertise for them because of how good it was for our family. I think you'll enjoy it too. www.kiwico.com/smarter
    It was 3 things... I ended up pointing out 3 things.

    • Rodtheo 00
      Rodtheo 00 4 일 전

      Your children have grown so much

    • russel finch
      russel finch 8 일 전

      SmarterEveryDay you know what’s amazing ?....hands !
      You can smash rock with them with a hammer,also pick up rough rock,grab hot items ,Stroke an animal,feel the slightest bit of grit on a surface,punch,massage....all with hands!

    • J Jay
      J Jay 18 일 전

      This was the longest add ever

    • Rimantas Liubertas
      Rimantas Liubertas 19 일 전

      @melanieenmats you are right. Gears and pulleys are just more sophisticated levers. And with lever you lose distance but you gain force.

  • Chris Kratochvil
    Chris Kratochvil 시간 전

    im trying to make a cure for cancer

  • Ggamer1234
    Ggamer1234 3 시간 전

    If I had to visit America, Alabama would be one of my go-to states

  • Emre Demir
    Emre Demir 5 시간 전

    you are a cool father

  • Jim Pyre
    Jim Pyre 8 시간 전

    Awesome work!!

  • I dont wanna use my name
    I dont wanna use my name 17 시간 전

    Pulleys and levers

  • BucWiLD
    BucWiLD 19 시간 전

    Husband: Snatch Block!!

    Wife: You Pervert!!

  • RainAngel111
    RainAngel111 19 시간 전


  • Christopher Sines
    Christopher Sines 20 시간 전

    idk why but the example at 4:20 really made it click for me

  • The Sydney Stone Company
    The Sydney Stone Company 21 시간 전

    Improve your grammar. Try not to say “got”.

  • Torque Monkey
    Torque Monkey 일 전

    not to be confused with a snatch box! you will end up on the wrong web page.

  • Dario Ampuy
    Dario Ampuy 일 전

    so... kiwico is the sponsor?!?!? i thought it was SNATCH BLOCK!!!!!

  • Greg Diefenbach
    Greg Diefenbach 일 전

    Does Smarter Everyday have a sponsorship relationship with MagellanTV?

  • John Doe Ent.
    John Doe Ent. 일 전

    What the heck is a snack block

  • marc p
    marc p 일 전

    I swear I thought u were about to say this is an ad for snatch block!!

  • ge200099
    ge200099 일 전

    Everybody who doesn't know the basic principles of physics like this does not earn their middle school degree

  • d duji
    d duji 일 전

    Amazing video ! Educated at age thirty lol . Definitely going to check out those kits . Is there any of those kits for ages 3 + I would like to buy some for my kids

  • fartswallower666
    fartswallower666 일 전 +1

    I put connies on to jakkit so I no make no mess

  • MIGHTY Space Beann

    I want to make a joke but the kids are watching

  • Aussie Aussie Aussie

    I see 3.3k thumbs down, which is hard to believe, but then I realise the ratio matched the amount of people I see in society that have purple/blue/pink hair and all of a sudden it makes sense.

  • Jacob Butterfield

    If I hadn't watched this video our company would have been two generations of moving generators like jackasses.

  • Mitchell Schock
    Mitchell Schock 일 전

    Life lesson: Get snatch Block

  • Grump Man
    Grump Man 2 일 전

    Destin..... this is the only channel i dont mind promotions..... dont stop Destin.... you are inspiring me to Be Smarter Everyday..... Thank You.

  • Thomas Gauna
    Thomas Gauna 2 일 전

    Can you film in slow motion and explain why a soda bottle explodes when shooken up, what makes it so challenging to open up a shaken up bottle?

  • Erik Kalifornia
    Erik Kalifornia 2 일 전

    Destin, is it exact, 2x force for every rope pulling up? I would imagine you would lose some of that force in the friction of a pulley. I picture your small hands on portion of the video, using like 16 snatch blocks. If you put 2 lbs of pull on the beginning, would you still get 32 lbs of lift? I would think some of that pull would get lost in the friction?

  • Nitish Bishnoi
    Nitish Bishnoi 2 일 전

    Was that Mark rober in the picture?

  • Luis Ramirez
    Luis Ramirez 2 일 전


    VALIS-FPV 2 일 전

    That dude in the truck had twice the finger size than Destin..

  • Steve Collins
    Steve Collins 2 일 전

    Give those kids some gloves!

  • Marc Drummond
    Marc Drummond 2 일 전

    Great stuff, thanks

  • eltouristoduo
    eltouristoduo 2 일 전

    fun topic! can go even deeper. Try to consider the implication of friction. The friction of pulleys and gears seems to sort of be inherently tired to the geometry, or I could be wrong, that's the fun thing about the subject, it can be counter-intuitive. But someone surely knows, if pullies had no friction would rope tension still decrease? Well it seems it has to because of the geometric leverage. I know the tension decreases with 2nd and more pulleys, but I havn't quite modeled it in my mind enough to see how that relates to the idea of friction and tension changes through a system. The fun part for me at the moment is trying to conceptualize how hypothetically frictionless pulleys would still decrease rope tension. Because for me intuitive if there was no friction how could tension be changed? Probably not that hard really, I will maybe edit my comment if I figure it out without cheating any time soon lol. But if anyone wants to tell that would be fun too. I think I already figured my question out years ago and forgot too, that's a common thing with me lol.

  • The_official_kiwi
    The_official_kiwi 2 일 전

    I like the idea of kiwi co I just wish it was based in New Zealand the land of the kiwi bird and why does everyone think NZ is part of Australia because kiwis (the people) have a rivalry with aussies and we are NOT the same

  • J Pweek
    J Pweek 2 일 전

    "Snatch BLock helps you make friends" - If I use it to make female friends will I be able to make friends with multiple women by expending the same amount of effort to male friends with one?

  • plopsplipspladoodle

    I'm a huge fan and I say this with love but Easy on the the yo dogs Dustin. It's appropriative.

  • JO
    JO 2 일 전

    Who else clicked thinking snatch blocks were the female version of c@ck blocks?

  • milo piva
    milo piva 2 일 전

    You might wanna consider changing your tires bro

  • Softail77us
    Softail77us 2 일 전

    When I was a kid we didn't have winches or come-a-longs., We had to use pulley systems with rope when a bike or dune buggy got stuck. It's great to see engineers with a sense of humor! I actually laughed. I want a snatch block key fob to clip on my belt loop. Do you have any? Thanks for the video.

  • SpaceCadetLaC
    SpaceCadetLaC 2 일 전

    Snatch Block!

  • Colin MacKenzie
    Colin MacKenzie 2 일 전

    Thank you for your posting! I had totally forgot about the compound block, thanks!

  • Colin MacKenzie
    Colin MacKenzie 2 일 전

    Pulled that truck with that thread !!!

  • camaro75RI camaro
    camaro75RI camaro 3 일 전

    replace the bald tires on the jeep will stop from getting stuck....lol

  • Dave Rice
    Dave Rice 3 일 전

  • Saket Vaibhav
    Saket Vaibhav 3 일 전

    Omg. I love this!
    I have so many questions though!

  • Tom Burgess
    Tom Burgess 3 일 전

    I'm a sailor and this is all I think about when I'm pulling the sheets

  • AsH Watchoutforthattree

    Take the rope, in tension. Insert the pulley, thereby halving the resultant force. Insert another pulley,... half again. Pulley= tension/2.

  • RGF
    RGF 3 일 전

    Your video genuinely made me laugh for the first time in over a month. Thank you.

  • Tazzspaz
    Tazzspaz 3 일 전

    Oh I don't need pulleys. I just need lots of kids.

  • JeffWilson 9919
    JeffWilson 9919 3 일 전


  • Tomas Walsh
    Tomas Walsh 3 일 전

    I think I need to invest in some snatch blocks now 😁

  • Juneao Alfred
    Juneao Alfred 3 일 전

    it does make me think how human in the past lift a tons of Massive Stone Blocks.. hurmm..
    but the pyramids is way behind before pulley is invented.

  • Bonecross
    Bonecross 3 일 전

    I’m sharing this with my robotics team. Look up team # 7607 from FRC

  • ORagnar
    ORagnar 3 일 전

    Astronaut Hatfield! The guy who sang "Space Oddity" while on the International Space station!

  • wayne nahuy
    wayne nahuy 3 일 전

    That is a good video dude...thanks.

  • Naldoron
    Naldoron 3 일 전

    Ouch. Those are some bald tires on that jeep

  • Corbeast Tracer
    Corbeast Tracer 3 일 전

    Anyone else notice Mark Rober in the background?

  • ussenterncc1701e
    ussenterncc1701e 3 일 전

    Work is equal to the force applied, multiplied by the distance across which it is applied. W=F×d
    By the work kinetic energy theorem, the work done on the system is equal to it's change in kinetic energy. W=∆KE
    In a conservative system, for a component that itself does not lose or gain kinetic energy, the work done on that component is equal to the work done by that component. W_in=W_out
    If the component is moving a different distance at one end that on the other, then the force associated will be different, since the work is the same. F_in×d_in=W_in=W_out=F_out×d_out
    This means the output force is equal to the input force, times the ratio of distances. F_out=F_in×(d_in/d_out)
    It is this ratio of distance that is the mechanical advantage. MA=d_in/d_out
    This is how mechanical advantage works for any system: pulley, lever, gears, etc.

    • ussenterncc1701e
      ussenterncc1701e 3 일 전

      The calculation requires distance, which means the things have to be moving... but what about things that are balanced, like hanging weights in a pulley system. This one's a tad more complicated mathematically, but it basically works out the same way.
      In a conservative system, the potential energy function is equal in magnitude to the work function, with respect to some defined zero energy position. Assume the mechanical components, like the rope and pulleys, doesn't add or subtract energy from the system (ignore miniscule amounts of stretching and friction). Each side of the system (input and output) has an associated potential function.
      A system will reach equilibrium when the total potential energy of the system is minimized. Since the potential energy functions are based on the work functions here, the balance point of the system will be based on the ratio of distances from the zero potential points, and the ratio of supported weights which balance is the same as the mechanical advantage.

  • DigUpSkulls
    DigUpSkulls 3 일 전

    Who goes off road with bald tires?

  • Bill Cosby
    Bill Cosby 3 일 전

    Are you an engineer. If so what branch. If mechanical i would like to ask a few questions as im a senior in highschool going into mechanical

  • bannockking
    bannockking 3 일 전

    Well done- I taught this in grade 4 science and wish I had your video.

  • tylerplaysthedrums
    tylerplaysthedrums 3 일 전

    Fire video I’ve always wondered about pulleys