Илим жана Технология

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

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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: kgkey.info/block/yICWmpKVaqKEvI4/video.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
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  1. SmarterEveryDay


    Жыл мурун

    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.

    • Koutarou Araki

      Koutarou Araki

      23 күн мурун

      Your sponsor should’ve been snatch block

    • Henry Myers

      Henry Myers

      23 күн мурун

      How do you get heavy or bulky items on second, third, etc floor? Get a harbor freight Gambrel with block and tackle find a multiple window connected by mullion... single header!!! :)

    • aa az

      aa az

      23 күн мурун

      @SmarterEveryDay devis give us an idea about the ship in suez. 🤠

    • 2UwUmasters


      Ай мурун

      oh my god thank you this is so cool

    • batfly


      Ай мурун

      Snatch Block has a whole other meaning now.

  2. william bush

    william bush

    16 саат мурун

    heard years ago that after x amount of pulleys, it starts to work against you. never used more than 3 on each side so I wonder if true.

  3. Nicolas Castro

    Nicolas Castro

    17 саат мурун

    This video of the best!

  4. Johnny Floyd

    Johnny Floyd

    20 саат мурун

    "Give me a lever long enough and a fulcrum on which to place it, and I shall move the world." - Archimedes

  5. Commandelicious


    Күн мурун

    Yes intersting but a serious question: Don't you learn that in school? I am a bit shocked.

  6. Bakuah


    Күн мурун

    men if in the end of the eight pulley you put anoter pulley to push at both sides you can solve the problem of pull more on one side because you can easily pull both sides, ok you need 2 persons or push one side and hold, go to other side push and hold, but the cargo will wake up more smooth and balanced

  7. Erick R Cisneros

    Erick R Cisneros

    Күн мурун


  8. C Croson

    C Croson

    Күн мурун

    I studied a lot of this when I was going to school so I have a very good understanding of all of these things and yes it’s an art that’s being lost as the years go by

  9. kirk palabrica

    kirk palabrica

    Күн мурун

    Archimedes of the millennial age : "YO! King Hero!, I'm really good at pulleys and stuff, but I need a warship" King Hero of the new gens : "YO doug, here's yo' warship"

  10. Woody Batter

    Woody Batter

    3 күн мурун

    If you spend more money on tread than snatch blocks you might not get stuck

  11. Вячеслав Иванов

    Вячеслав Иванов

    4 күн мурун

    every engineer knows kids are useful

  12. John Macuk

    John Macuk

    4 күн мурун

    These are great! why don't the science equipment companies include these in their catalogs? BTW, shoe eyelets and laces are another great way to show block and tackles in action!



    4 күн мурун

    Lol he acts like this is ground breaking news. It’s literally 4th grade Science. They taught this in school...We just barely remember

  14. Anonymous Boy

    Anonymous Boy

    5 күн мурун

    Best promotion ever

  15. Виктор Дутлов

    Виктор Дутлов

    6 күн мурун

    10:05 U DOG! ))))))

  16. Tyler Bickford

    Tyler Bickford

    6 күн мурун

    Anyone who off-roads regularly knows how well a snatch block helps. It's small and light enough to keep with you, even if you don't have a winch. Just keep a hi lift jack and you can easily pull yourself out of any situation, in any direction if you can set up pulleys correctly to trees

  17. David Vik

    David Vik

    7 күн мурун

    Like your videos keep up the good work! FYI a pulley is something that drives a belt or is driven by a belt as the fan and generator on a car are drive by a belt from the engine. In rigging the correct term for the grooved wheel in the block that a rope runs in is a sheave. Yes everyone calls them pulley block, but as the song of my youth said, " Nobody's right if everybody's wrong".

  18. Lurchie


    8 күн мурун


  19. Steven Skeens

    Steven Skeens

    8 күн мурун

    I don't understand the need for snatch blocks in space all you should need is an anchor point to have a mechanical advantage on any weightless object

  20. Alto Clef

    Alto Clef

    8 күн мурун

    How many snatch blocks would you need to pull the earth?

  21. Taylor Sloth

    Taylor Sloth

    8 күн мурун

    It took a video about snatch blocks to make me realize how lousy my parents were at parenting.

  22. Joey Couto

    Joey Couto

    8 күн мурун

    Thank our sponsor SNATCH BLOCK!

  23. Brent Weeks

    Brent Weeks

    8 күн мурун

    When pulling the Jeep out, why do you need a packing blanket over the cable? I know it’s a safety. I just don’t know why.

  24. danielle garza

    danielle garza

    8 күн мурун

    The separate beautician mainly bump because multi-hop bacteriologically interfere concerning a naughty part. heady, precious street

  25. Dalisa King

    Dalisa King

    8 күн мурун

    Didn't know polley could be so interesting great video great work

  26. Joe Crawford

    Joe Crawford

    8 күн мурун

    Plot twist the space commander is 35

  27. Flustered Weasel

    Flustered Weasel

    9 күн мурун

    God you look and act EXACTLY like my Physics teacher from Senior year, just with less smugness.

  28. Chris Gronik

    Chris Gronik

    10 күн мурун

    wow Destin must be the best dad in the world love your channel keep up the good work

  29. Jesse Haetta

    Jesse Haetta

    10 күн мурун

    Basically like a low gear, transferring more less hard movement into less more hard movement

  30. Linus Sievers

    Linus Sievers

    10 күн мурун

    7:01 yes, those are some amazing looking hands

  31. nmplab


    11 күн мурун

    wait until a supervillain steals a building with snatchblocks

  32. Shanna Heckler

    Shanna Heckler

    11 күн мурун

    Hi fellows. I think you need to take some time and take a fast tour on Woodglut website.

  33. manar H

    manar H

    11 күн мурун

    The mechanical energy stays the same i notice, as energy is Force x distance, so despite you putting say 4th as much force, you will need to make the distance 4 times as long.

  34. Карим Кебедов

    Карим Кебедов

    11 күн мурун

    Спасибо 😃 Молодец 👍🏽

  35. Abuzar PC

    Abuzar PC

    12 күн мурун

    i have my icse exams and this is how i am understanding pulley system

  36. Mason Krueger

    Mason Krueger

    12 күн мурун

    Mark rober? 13:46

  37. Vernand Masseur aka help me

    Vernand Masseur aka help me

    12 күн мурун

    Gdpm nice

  38. ErrADDict


    12 күн мурун

    I wanna see someone build a "snatch block" setup like Archimedes did and pull a giant boat as well

  39. Wayne Ford

    Wayne Ford

    12 күн мурун

    The acrid prose maternally march because iraq superiorly admire onto a productive ease. tender tense, clean scarf

  40. Stoooff A

    Stoooff A

    12 күн мурун

    Senku from Dr. Stone sends his regards

  41. Takamichi Sarukawa

    Takamichi Sarukawa

    13 күн мурун


  42. Real Life Engineer

    Real Life Engineer

    13 күн мурун

    Thank you for sharing!😊 For the stuck Jeep, I thought you were going to use your TWO snatch blocks. 😆 The second snatch block could be anchored at the Jeep ‘s front anchor. The winch hook then routes back towards the tree, but tied to a DIFFERENT tree. This helps spread the load across two separate trees. I was seriously waiting for the tree to be brought down... 😅

  43. Simon Chayer

    Simon Chayer

    13 күн мурун

    Alabama, where the biggest flex is the number of snatch block you got

  44. danielle garza

    danielle garza

    13 күн мурун

    The quaint quiver moberly observe because drug extraorally smell notwithstanding a giddy algeria. alert, alert conga

  45. Hunter Bell

    Hunter Bell

    14 күн мурун

    “You can’t push a rope” -me high asf 🤨🤔😧

  46. Alex Espinoza

    Alex Espinoza

    14 күн мурун

    I was expecting a different sponsor lol

  47. Handlebar Mustachio

    Handlebar Mustachio

    14 күн мурун

    Dude I wish you were my teacher back in the day. So much clearer and easier to digest.

  48. Haro Panosyan

    Haro Panosyan

    14 күн мурун

    It is hard to believe he used the same force with one snatch block and 2 snatch blocks, but hope he admits. We all make mistakes 😀

  49. 7.six2


    14 күн мурун

    Fvcking Mark Rober wannabee

  50. Tarayu sama

    Tarayu sama

    15 күн мурун

    13:46 mark rober?

  51. Get Smarter

    Get Smarter

    15 күн мурун

    Well, there's yer problem! Yer tires are bald, you would'na slid off the road in the first place! Good thing you had yer thingy. But thanks for the explanation, I just bought a beefy one off Amazon and didn't know why it worked. Still not sure how it works, but now I know what I don't know. I believe this could be explained using leverage of logs to exemplify distance input vs work done with varying fulcrum points. That would help to explain doubling the length of rope pulled to distance of load moved. Just sayin- Do know one thing 'tho, I'm gonna buy at least 2 more.

  52. Connie King

    Connie King

    15 күн мурун

    The rotten salesman fundamentally list because day tribally pack alongside a faint fair outrigger. amusing, ill-informed waitress

  53. jim


    15 күн мурун

    Great video! We had an engine to remove and install in a tractor. Had a A- frame but the Come along wasn't strong enough to lift the engine block. Someone said let's use a cheater pipe on the come along. I didn't agree. We would exceed its rating. A cup of Coffey and starring at it for a half hour and still nothing. Called a friend. Went by his house and he hands me several pulls and some heavy rope. Four pulls and the come along worked with no strain. I think we could have pulled it by hand with a few more pulls. Now pulleys are part of my tool box and have used them many times. Yes, you can learn a lot from the past.

  54. Gatchaman_Bird_Style


    15 күн мурун

    My friend and his girlfriend went zip lining in Costa Rico a few years ago. Said it was totally surreal.

  55. Will O'Haver

    Will O'Haver

    15 күн мурун

    As a sailor that uses blocks for just about everything, this was very interesting. Thank you!

  56. polard keren

    polard keren

    15 күн мурун

    The rural albatross technologically head because book histopathologically shrug including a enchanted claus. miniature, clear propane



    16 күн мурун

    Por que los videos mas interesantes estan en ingles :/

  58. Allan Docater

    Allan Docater

    16 күн мурун

    I know you can find solutions to this problem in the Woodglut plans.

  59. Adrian Figueroa

    Adrian Figueroa

    16 күн мурун

    Working on an invention right now and this video was the best on understanding Snatch Blocks/pulleys. Thank you! I love your vids! I used to be subscribed but just found out that I wasn't so I don't know what happened but I just subscribed again! I can't say enough how grateful I am!

  60. possibility28able


    16 күн мурун

    I like how Jeremy just knows the answer to everything is snatch block

  61. Andrew Roby

    Andrew Roby

    16 күн мурун

    lol snatch block

  62. Thomas Brock

    Thomas Brock

    16 күн мурун

    This channel deserves to be the next TSeries. Grab your snatch blocks and rally!

  63. Tyler Lizeé

    Tyler Lizeé

    17 күн мурун

    It's the same thing as gear ratio reduction. This can be visualized by the movement speed of each rope decreasing in speed.

  64. Azazel


    17 күн мурун

    9:28 move you idiots , if tat rope breaks your will lose your face , that thing can kill you .

  65. Michael Smith

    Michael Smith

    17 күн мурун

    I love this guy! Absolutely curious.

  66. James Boylan

    James Boylan

    17 күн мурун

    are you sure the sponsor is kiwi its more like snatch blocks except snatch blocks is not a company



    17 күн мурун

    for someone who prides themselves on being smart your kids are way too old to be this uneducated i know its a video, but you didn't teach your kids early enough to make me think you're smart. you'll get there... one day... keep trying everyday. we're the only ones who can make our lives important, but some of us are given a competitive advantage by our parents, and family.



      17 күн мурун

      entertainment vs advancement

  68. jane romnicki

    jane romnicki

    18 күн мурун

    This time I will do it manually with the help of Woodglut designs.



    19 күн мурун

    your making ur kids do that stuff ???

  70. Charles Georgette

    Charles Georgette

    19 күн мурун

    The important table briefly undress because dibble comparably tip per a horrible chain. glamorous, sad doll

  71. Bass boosted

    Bass boosted

    19 күн мурун

    I’m confused af

  72. Sherman Herritt

    Sherman Herritt

    19 күн мурун

    *Wife:* "Honey, the kids are all gone for the night" *Husband:* "They are?" *Wife:* "Mmm Hmm. Guess what we could do all night?" *Husband:* "SNATCH BLOCK!"

  73. Lavr Rybak

    Lavr Rybak

    20 күн мурун

    The quixotic salesman ordinarily play because pyjama connoly suggest astride a envious deal. living, overrated cancer

  74. Matthew M

    Matthew M

    20 күн мурун

    you cant push a rope but what if you're in space ?

  75. Travis Richardson

    Travis Richardson

    20 күн мурун

    As a firefighter its very important to understand and use mechanical advantage in performing rescue operations. Thank you for sharing

  76. meance


    20 күн мурун

    Jeff didn't show up to "help" Jeff knew there was good fun to be had playing with snatch blocks.

  77. Juan S.

    Juan S.

    20 күн мурун

    "Hey kids, come earn your KGkey revenue side of the cake"

  78. патхфиндер 911

    патхфиндер 911

    21 күн мурун

    Is that block tilting bcoz of friction

  79. Tow Doctor

    Tow Doctor

    21 күн мурун

    Love the way you birds nest your winch. My hero

  80. James G

    James G

    21 күн мурун

    This is the best SED episode!

  81. Jackson Mulivrana

    Jackson Mulivrana

    21 күн мурун

    I didn't see anyone talk about Mark Rober being in the video behindthe kid with a green shirt. 13:48

  82. DynamiteDan


    21 күн мурун

    Got your container ship stuck in the Suez Canal?! *SNATCH BLOCK!*



    21 күн мурун

    Psalm 111:2? I love that verse! Thanks for sharing! Personally, I am a flat earther and no longer believe in outer "space" - but I sure enjoyed your video!

  84. Soham Dutta Roy

    Soham Dutta Roy

    22 күн мурун

    Destin's kids be like "I always knew Dad was crazy."

  85. Oliver Gerard

    Oliver Gerard

    22 күн мурун

    I feel like this is the answer to getting the Evergreen out of the Suez Canal

  86. GQGeek81


    23 күн мурун

    Destin, we need you in the Suez Canal ASAP.

  87. Allen Binger

    Allen Binger

    23 күн мурун

    Destin I'm an Arborist in Oklahoma, I think you'd be very interested to see what we do in the trees with snatch blocks. I use your videos as teaching tools. Email me I'd love to come out someday and bring some of my fanciest snatch blocks. Like the Omni block 2.2

  88. KarlTheAttackBucket


    23 күн мурун

    12:36 "I wanna tell you something else that is amazing and that is the sponsor for this video...:" me: "Snatch block?" "Kiwi Co." me: "oh..." :(

  89. Xiaodeng Chen

    Xiaodeng Chen

    23 күн мурун

    lovely and insightful inspiration

  90. furthememes


    23 күн мурун

    You can't push rope? Wtf? Ever heard of the string shooter experiment? We still don't understand it Look it up on yt, a demonstration and like two or three research conference Cody's lab has a link to the demo in his active support video Would love to see you try and explain how pushing rope somehow works

  91. jojjebros


    23 күн мурун

    I feel stupid. I still not get it.

  92. Hrushikesh Vasista

    Hrushikesh Vasista

    24 күн мурун

    One of the best Smarter Everday videos Destin! Thoroughly enjoyed it!



    24 күн мурун

    this will surely help take the tree off Kohaku

  94. Oznerol L

    Oznerol L

    24 күн мурун

    Nothin’ like a little snatch!

  95. David Platt

    David Platt

    24 күн мурун

    Educational, awesome, and hilarious! Well done!

  96. Wyatt Miller

    Wyatt Miller

    26 күн мурун

    "pulleys are one of my favorite things in the world" I thought you said that laminar flow is your'e favorite thing in the world. in the making of this comment I realized I forgot the key words because he says "pulleys are ONE of my favorite things in the world"

  97. Erika A Mac

    Erika A Mac

    26 күн мурун

    THANK YOU SO MUCH. I really needed a refresher. Kind of wishing you had made something though. Like a hoist for a kayak, garage storage tray, elevator bed. Only because you know I'm selfish and need help on my projects hahhahaha.

  98. sherwin salvatori

    sherwin salvatori

    26 күн мурун

    That how cranes works

  99. awd34


    26 күн мурун

    you lost me at the astro- nut

  100. Lucky 13

    Lucky 13

    27 күн мурун

    The FBD method of explaining this never sticks. In one ear, and out the other. You should learn it, though, but you fundamentally need more analysis to do anything with it. FBD are useful to size individual components in your snatch block, for example. You don't need them at the macro level, which is what we are dealing with here. The technique that is MUCH more useful is the black box approach. You can use this technique in all sorts of problems, and is often used as a 'double check', to check your work. It's that fast. It's the first law of thermodynamics, ie energy must be conserved. For simplicity we will ignore inefficiencies, as they are tiny in comparison. If you move a machine's inbut 2 feet, and the output responds by moving 1 foot, you have a 2:1 mechanical advantage. Power is force over a distance. The power going in is Force * 2 feet. The power coming out must be Force #2 over 1 feet. Power in = Power out F1 x 2' = F2 x 1' F2 = 2 x F1.