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

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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
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$29 - orange 10 ton amzn.to/2OWQFdb
We discussed Snatch Blocks on this episode of the No Dumb Questions podcast:
www.nodumbquestions.fm/listen/2019/9/21/067-the-lost-city-of-nineveh
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:
www.math.pitt.edu/~sph/osher-course/plutarch-on-archimedes.pdf
The wikipedia page on Block and Tackle is really good:
en.wikipedia.org/wiki/Block_and_tackle
I thought this was a great video about why you should put blankets on your winch cable: th-vision.net/detail/%E0%B8%A7%E0%B8%B5%E0%B8%94%E0%B8%B5%E0%B9%82%E0%B8%AD-gPba-34ARZY.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: twitter.com/Cmdr_Hadfield
He can be contacted for speaking engagements here:
chrishadfield.ca/
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Jeremy Fielding has his own TH-vision channel which you can enjoy here!
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A special thank you to @MurkyWanders on Twitter for videoing the Atlantis exhibit for us.
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Warm Regards,
Destin

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ความคิดเห็น

  • 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.

    SmarterEveryDaySmarterEveryDay8 หลายเดือนก่อน
    • What we do ties in well with content like this. Read The Present on the website called the Global Truth Project. Search it up on google. It is free. Free truth that sets you free.

      Sugako FrantzSugako Frantz3 วันที่ผ่านมา
    • SmarterEveryDay endgame final battle

      Zillur RahmanZillur Rahman5 วันที่ผ่านมา
    • could of just said its a gear system, spreading work over longer pull, averaging less force, but same amount of work total.... 1x2 gear ration for 1 pulley 1x4 gear for 2 pulleys

      soundtrancecloudsoundtrancecloud9 วันที่ผ่านมา
    • Thanks to this man i could make my physics project I would love to have him as a teacher

      pugacraftero 17pugacraftero 17หลายเดือนก่อน
    • @Ying Yen Lin Actually it's only about the "conservation of energy (or work)", which is defined mechanicely as the product of Force x Length of the way the Force works.... : With two pullies You double the Foirce on the lifting Hook, but You must pull twice the length of rope than the hight You lift Your lest ...

      Christian von Faber-CastellChristian von Faber-Castellหลายเดือนก่อน
  • all I want for Christmas is snatch block :-)

    gaspy75gaspy757 นาทีที่ผ่านมา
  • I'm disappointed this video wasn't sponsored by Snatch Block...

    Resourceful Man is ResourcefulResourceful Man is Resourceful2 ชั่วโมงที่ผ่านมา
  • *Pulley* : These are like my favorite things in the world *Laminar Flow* : You Betrayed MEEE Destin!

    Sebastian MillerSebastian Miller4 ชั่วโมงที่ผ่านมา
  • Cool device. I know these things exist but it's so hard to buy things when you don't know what they are called. Ever try to buy a turnbuckle or a carabiner without knowing the names? It's impossible. please cover devices like this in the future so we at least know what they are called.

    ShawnShawn6 ชั่วโมงที่ผ่านมา
  • Chris Hatfield is my hero!! And oh yeah...SNATCH BLOCK!

    Cameron BrownCameron Brown6 ชั่วโมงที่ผ่านมา
  • @smarterEveryday Thanks for explaining the concept of pulleys so well. Would you let me what can be added to hold an object (lifted by the pulley) in place? Thanks

    Abhiuday SrivastavaAbhiuday Srivastava19 ชั่วโมงที่ผ่านมา
  • This is an absolutely brilliant demonstration. Upon reading the title a dirty joke immediately came to mind lol.

    Kurt SumthinorotherKurt Sumthinorotherวันที่ผ่านมา
  • At first glance, this stuff is boring but the way Destin conveys it...awesome indeed.

    Robert van PiggelenRobert van Piggelenวันที่ผ่านมา
  • Is he sponsored by a snatch block company???

    Cole LauterbachCole Lauterbachวันที่ผ่านมา
  • What no Chemistry set?

    Master Chief 00117Master Chief 00117วันที่ผ่านมา
  • Snatch block... that was my ex-wife's nickname in high school.

    jehsterjehsterวันที่ผ่านมา
  • no one: what is that?

    unzman55unzman55วันที่ผ่านมา
  • It works the same as a transmission in a car. Lots of pulleys equals a high gear ratio aka first gear. Lots of engine revs for good torque but not much speed. Shift to second and remove some pulleys and less torque but more movement on the end for the same movement of the primary. Take away all the pulleys and just lift the blocks and that's the direct drive that most manual cars had before the advent of overdrives. The analogy falls apart at that point because while you can push overdriven gears, as you pointed out you can't push a rope. It's all a matter of leverage when you really take either example to it's most basic principles.

    Chris BakerChris Bakerวันที่ผ่านมา
  • I believe you are mistaken about the "fixed" snatch block doubling the pull on the jeep. A fixed block changes the direction of the pull, mechanical advantage is gained when the block is "travelling" with the load. The only pulling advantage gained with the set up on the jeep is another layer of wire rope off of the winch drum, the rating on the winch, for example 8000 lbs., is at the 1st layer of wire rope. Each added layer reduces pulling strength. I've been a towing operator for 25 years, this was taught in recovery certification classes that I attended in the beginning of my career. Loved your video, just wanted to point that out.

    Tom GrangerTom Granger2 วันที่ผ่านมา
  • I watched a bunch of these pulley videos in my physical science class this year

    Ethan RataiczakEthan Rataiczak2 วันที่ผ่านมา
  • Very educational

    MXCMXC2 วันที่ผ่านมา
  • thought it was basketball snatch block

    Dat-guy Who-playsDat-guy Who-plays2 วันที่ผ่านมา
  • i wish you were my teacher when I was schooling..

    Limmuel June BaylinLimmuel June Baylin3 วันที่ผ่านมา
  • So why would they need a snatch-block in a weightless environment.

    Truth SeakerTruth Seaker3 วันที่ผ่านมา
    • Because objects still have mass in a weightless environment.

      Lateral TwitlerLateral Twitler20 ชั่วโมงที่ผ่านมา
  • I love using these. I have to pull three stumps out. And we tie several based on how big the tree was. Once we used 7 and pulled the tree stump out and we used a winch and it makes quick work out of those jobs.

    Coley DavisColey Davis3 วันที่ผ่านมา
  • are there any gals who like smart guys?? wink wink XD

    zecollector360zecollector3603 วันที่ผ่านมา
  • Man, this guy REALLY loves Snatch Blocks! 😆

    Sandro LauerSandro Lauer4 วันที่ผ่านมา
  • Oh snap! I just realized where I knew his friend from... Thats Jeremy bloody Fielding!

    Ayatollah Sha’Nay-NayAyatollah Sha’Nay-Nay4 วันที่ผ่านมา
  • 4,000+ thumb downs? ???????????????

    BlakelikesfoodBlakelikesfood4 วันที่ผ่านมา
  • Wow man, hehe you just are awesome ;) Hey may you please tell me which block pulleys did you use? How can I get those? are they stackable? Thank you very much! ¡Saludos desde México!

    Alejandro del ValleAlejandro del Valle4 วันที่ผ่านมา
  • Ahhh... Now I know the usage of those pullies on modern bows.

    JunjunJunjun4 วันที่ผ่านมา
  • I wish i had a dad like this! I'll grow up to be smarter!

    4v3nir4v3nir4 วันที่ผ่านมา
  • After watching this video, i became smarter today. Nobody ever explained it so well as you did! This should be a taught class in mechanic's classes. We just know how to use them for advantage but never understood the actual numbers ratios

    La DedaLa Deda4 วันที่ผ่านมา
  • I worked in rope rescue for many years as a rescuer and instructor both in public and private sectors. Mechanical advantage always intrigued me. Work smarter, not harder! My understanding of simple (vs compound) MA systems, was that to determine where the rope you're pulling on (or in the above case, the winch...or wherever the source of force originates) is attached, then add MA for every pulley that 'moves' in the system. Clear as mud? Great, lets move on. lol I much prefer your summation and practical examples of MA, and very much concur in the 'class' portion. The key to MA I always used was "moving pulleys create advantage". For a basic foundation: if the rope is attached to a 300lb load directly you would require 300lb force (not withstanding friction, etc), and is a 1:1 ratio. However if the rope is attached to an anchor, run back through a pulley and force is applied in the opposing direction, that is a 2:1 ratio (300lb load > 150lb force). Note in the 2:1 (even numbered) the pulley at the load moves with the load toward the anchor. Force on rope attached to load will always result in an odd numbered ratio (1:1, 3:1, 5:1...); force on rope attached to an anchor will always result in an even numbered ratio (2:1, 4:1, 8:1...). To step from one ratio to the next, a pulley must move within the system. Anything that does not move only serves to redirect force - which is the whole purpose of using pulleys, but if they don't move - they don't increase the step ratio, thus reducing force necessary. Bear in mind, this is true in a simple advantage system. When it gets into compound systems - its not so cut and dry. So, to my question (and sorry for the lack of brevity): if my understanding of the physics is correct for simple MA systems, would your 'winch (force) > snatch block (redirect; not moving) > jeep hook (anchor)' not result in a 1:1 redirected and no gain in MA? I humbly ask to learn. Please don't think I'm trolling. I love your videos. I leave them feeling smarter about something every time - absolutely true of this video. My quandary here is that your example with the jeep challenged my understanding. I don't seek to dispute, just verify whether my understanding is accurate or I may be forgetting details in retirement (which is absolutely a possibility!). Cheers, Jeff

    jefbenetjefbenet5 วันที่ผ่านมา
    • May have answered my own question. I had done a cursory search on the topic to check myself first and foremost, but didn't land on any conclusive support or contradiction. Apparently I was asking the wrong question. Came across a source that suggested the difference in the case of the winch is that the winch itself acts as a pulley for its own motor. And thus I conclude two things: A) you were correct, and I learned something more than I had when first viewing the video B) I've stayed up too late and my brain needs a snatch block now to drag me to bed!

      jefbenetjefbenet5 วันที่ผ่านมา
  • Think I have a new catchphrase. SNATCH BLOCK!!! LOL XD

    ZachmansdZachmansd5 วันที่ผ่านมา
  • 9th grade flashbacks

    Evan ZekiEvan Zeki5 วันที่ผ่านมา
  • first time i really understand & appreciate pulleys. i remember failing pulley question in my pre-junior high science courses, for some reason i never met any pulley related question after that yet i majored in STEM

    Matt DathewMatt Dathew5 วันที่ผ่านมา
  • You’re awesome

    Michael AnsaldoMichael Ansaldo5 วันที่ผ่านมา
  • Snatch Block!! I was dying at 12:15... Great video man!!!

    Al ganskAl gansk5 วันที่ผ่านมา
  • Try asking a woman if you can check out her snatch block

    Megan StokesMegan Stokes5 วันที่ผ่านมา
  • Those aren't cinder blocks. Those are concrete blocks. Cinder blocks have three holes and are made from cinder.

    David SigmundDavid Sigmund5 วันที่ผ่านมา
  • I didn't know I wanted a Space Shuttle Come Along until just this moment. That thing is beautiful.

    Brian MacDougallBrian MacDougall5 วันที่ผ่านมา
  • Great job showing mechanical advantage with pulleys. Know get some new tires for that Jeep.

    Dave DaviesDave Davies5 วันที่ผ่านมา
  • lopl literaly a 30 min add :P

    BlinkyBill_BlinkyBill_6 วันที่ผ่านมา
  • Imagine a snatch block tug of war system

    Lucas McDanielLucas McDaniel6 วันที่ผ่านมา
  • So one thing he doesn't really go into is this: Work = Force x Distance The more snatch blocks he adds the "easier" it is to pull the weight, but the longer it takes (or more rope it takes) to move the object a given distance. It still takes the same amount of work, it's just spread out over a longer distance. It's still pretty cool to see in action!

    Craig PhillipsCraig Phillips6 วันที่ผ่านมา
  • why did you not get snatch block to sponser you

    Virginia GardVirginia Gard6 วันที่ผ่านมา
  • I too love snatch.

    The ReynoldsThe Reynolds6 วันที่ผ่านมา
  • Whoa wait, your video isn't sponsored by Snatchblock?!

    David HartyDavid Harty6 วันที่ผ่านมา
  • Love this guy :D

    Eric NeedleEric Needle6 วันที่ผ่านมา
  • Something tells me this guy likes SNATCH BLOCK!s.

    RagingTortoiseRagingTortoise6 วันที่ผ่านมา
  • Do a vid on why you should have hung a towel over that cable when you were standing next to it when it was under tension, please, before you get cut in half.

    Crisis CyclingCrisis Cycling6 วันที่ผ่านมา
  • Very cool

    GeekygordonGeekygordon6 วันที่ผ่านมา
  • @9:18 Buy some better tires..

    Yağmur BayraktarYağmur Bayraktar7 วันที่ผ่านมา
  • I am an operation engineer and I work at an offshore oil rig. We have the top drive that is supported by the traveling block which has several shims and pulleys. I’ve always wondered what actually goes on inside of the traveling block; therefore, I find this video very informative, interesting, and fun to watch. Thank you 🙏😊

    Khalid Al DuwaysKhalid Al Duways7 วันที่ผ่านมา
  • I can't believe I never knew how this worked until now!

    HappyCupHappyCup7 วันที่ผ่านมา
  • Just wanted to say thank you ive always wanted to learn how that works

    William HudsonWilliam Hudson7 วันที่ผ่านมา
  • I own a small Solar Power System company and the good people that work for me have to take all those Solar Panels on the rooftops of the Houses & Buildings )which sometimes don't have Elevators) by hands, which is not only tiresome before even the start of real work, but dangerous as well. So, I've been thinking to build a pulley system to get those Solar Panels on top easily as I haven't able to find one in the market for my particular specifications. Guess this video dropped in perfect timing. Definitely gonna put Snatch Blocks in use.

    AlanAlan7 วันที่ผ่านมา
  • I have always meant to go back and restudy pulleys but of course have not. When I saw this video I got excited and with good reason. I have been a fan since Dustin teamed with Veritasium host Derek Muller.

    Yendor Elrae EրöեsոիօյYendor Elrae Eրöեsոիօյ7 วันที่ผ่านมา
  • Sorry to break the spell, but he's wrong,starting at 1:08, as he fails to account for the force excercised on the pulley's mounting point. The pulley makes lifting easier because the force excercised on the monting point (the pulley's center) is divided in two, one half on each rope.

    Manos PetridisManos Petridis7 วันที่ผ่านมา
  • And the sponsor for this video is.... Wait isn't this video a SNATCH BLOCK COMMERCIAL?

    Andrew SnipersAndrew Snipers7 วันที่ผ่านมา
  • I just love your excitement and happiness with the stuff...🤩❤️🙌🏻

    Shree Samarth Krupa ClassesShree Samarth Krupa Classes8 วันที่ผ่านมา
  • Was that Costa Rica Rios?

    Chris FoyChris Foy8 วันที่ผ่านมา
  • I am in Pensacola FL and you would probably love the winch pulley system we use to pull 1200T vessels out of the water. Something to nerd out over for sure.

    Frankie PattiFrankie Patti8 วันที่ผ่านมา
  • So the question I have is the amount of force on each section of rope and each anchor point. Easy to figure?

    Eric WilcoxEric Wilcox8 วันที่ผ่านมา
  • wait is that mark rober in the kiwi co shot at 13:49 on the left of the youngest kid in the green shirt?

    Dan TDan T8 วันที่ผ่านมา
  • Its magic, got it 👍

    Ali AbudeebAli Abudeeb8 วันที่ผ่านมา
  • I’m here again

    AlexAlex8 วันที่ผ่านมา
  • Quatsch dir keinen Zahn locker

    Franz OttoFranz Otto8 วันที่ผ่านมา
  • Well done with this video. The beauty is seeing what you were explaining in words in a working machine. A lot of hard work printing all the pulleys but I imagine, somewhere in the world you have created our future engineers. Superb!

    CalcoCalco8 วันที่ผ่านมา
  • Seguro que no conoces la palabra trócola para designar estas combinaciones y por eso sólo la mitad del enunciado es español.

    Manolo de la Vía JiménezManolo de la Vía Jiménez8 วันที่ผ่านมา
  • How to lift more weight?: "snatch block" How to solve poverty? "snatch block" How to bake a cake? "snatch block" How to change a tire? "snatch block" How to solve world hunger?: "snatch block"

    CryptfireCryptfire8 วันที่ผ่านมา
  • Another good way to teach the advantage is to ask one kid to lift a cinder block with one rope, then have two kids lift a cinder block with two ropes. Keep attaching ropes or if the rope is long enough just keep folding it so that the number of ropes lifting the cinder block keeps increasing. You also have to have enough kids and enough space to do this, but imagine having 20 pieces of string attached to a cinder block and having 20 kids lifting their string with one finger and all of them working together to lift the load.

    Jay MarshallJay Marshall8 วันที่ผ่านมา
  • 13:46 do u see mark rober

    Munchies GamingMunchies Gaming8 วันที่ผ่านมา
Why Snatch Blocks are AWESOME (How Pulleys Work)  - Smarter Every Day 228