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: al-projects.info/it/video/y4GXl2BsmHGHk5I
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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  • 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.

    SmarterEveryDaySmarterEveryDayMuaj më parë
    • Your children have grown so much

      Rodtheo 00Rodtheo 002 ditë më parë
    • 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!

      russel finchrussel finch6 ditë më parë
    • This was the longest add ever

      J JayJ Jay16 ditë më parë
    • @melanieenmats you are right. Gears and pulleys are just more sophisticated levers. And with lever you lose distance but you gain force.

      Rimantas LiubertasRimantas Liubertas17 ditë më parë
  • Give those kids some gloves!

    Steve CollinsSteve CollinsOrë më parë
  • Great stuff, thanks

    Marc DrummondMarc Drummond6 orë më parë
  • 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.

    eltouristoduoeltouristoduo8 orë më parë
  • 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

    The_official_kiwiThe_official_kiwi9 orë më parë
  • "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?

    J PweekJ Pweek9 orë më parë
  • I'm a huge fan and I say this with love but Easy on the the yo dogs Dustin. It's appropriative.

    plopsplipspladoodleplopsplipspladoodle12 orë më parë
  • Who else clicked thinking snatch blocks were the female version of c@ck blocks?

    JOJO14 orë më parë
  • You might wanna consider changing your tires bro

    milo pivamilo piva15 orë më parë
  • 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.

    Softail77usSoftail77us15 orë më parë
  • Snatch Block!

    SpaceCadetLaCSpaceCadetLaC17 orë më parë
  • Thank you for your posting! I had totally forgot about the compound block, thanks!

    Colin MacKenzieColin MacKenzie18 orë më parë
  • Pulled that truck with that thread !!!

    Colin MacKenzieColin MacKenzie18 orë më parë
  • replace the bald tires on the jeep will stop from getting stuck....lol

    camaro75RI camarocamaro75RI camaro19 orë më parë
  • Dave RiceDave Rice20 orë më parë
  • Omg. I love this! I have so many questions though!

    Saket VaibhavSaket Vaibhav21 orë më parë
  • I'm a sailor and this is all I think about when I'm pulling the sheets

    Tom BurgessTom Burgess22 orë më parë
  • Take the rope, in tension. Insert the pulley, thereby halving the resultant force. Insert another pulley,... half again. Pulley= tension/2.

    AsH WatchoutforthattreeAsH WatchoutforthattreeDitë më parë
  • Your video genuinely made me laugh for the first time in over a month. Thank you.

    RGFRGFDitë më parë
  • Oh I don't need pulleys. I just need lots of kids.

    TazzspazTazzspazDitë më parë

    JeffWilson 9919JeffWilson 9919Ditë më parë
  • I think I need to invest in some snatch blocks now 😁

    Tomas WalshTomas WalshDitë më parë
  • 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.

    Juneao AlfredJuneao AlfredDitë më parë
  • I’m sharing this with my robotics team. Look up team # 7607 from FRC

    BonecrossBonecrossDitë më parë
  • Astronaut Hatfield! The guy who sang "Space Oddity" while on the International Space station!

    ORagnarORagnarDitë më parë
  • That is a good video dude...thanks.

    wayne nahuywayne nahuyDitë më parë
  • Ouch. Those are some bald tires on that jeep

    NaldoronNaldoronDitë më parë
  • Anyone else notice Mark Rober in the background?

    Corbeast TracerCorbeast TracerDitë më parë
  • 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.

    ussenterncc1701eussenterncc1701eDitë më parë
    • 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.

      ussenterncc1701eussenterncc1701eDitë më parë
  • Who goes off road with bald tires?

    DigUpSkullsDigUpSkullsDitë më parë
  • 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

    Bill CosbyBill CosbyDitë më parë
  • Well done- I taught this in grade 4 science and wish I had your video.

    bannockkingbannockkingDitë më parë
  • Fire video I’ve always wondered about pulleys

    tylerplaysthedrumstylerplaysthedrumsDitë më parë
  • Whats tinsion?

    dungoistdungoistDitë më parë
  • Why after watching this video. I'am repeating snatch block in me ?

    Bojan SimonovskiBojan SimonovskiDitë më parë
  • this video was sponsored by snatch block.

    Rogue LodyteRogue LodyteDitë më parë
  • 12:03 SNATCH BLOCK! Funniest thing ever!

    Addie FanlowAddie FanlowDitë më parë
  • What would happen if you, instead of tying off the rope to the hook on the way right, you extended that rope with another pulley, and brought it over to the left side where you pulled on that rope, as well as the rope youre already holding????

    Addie FanlowAddie FanlowDitë më parë
  • I don't pretend.

    Rufus ShinraRufus ShinraDitë më parë
  • This guy gets so excited off seemingly boring things, I love it! That’s a great approach to life, some people have a billion $ and nothing can excite them like a snatchblock can excite destin.

    Drey BalatskiyDrey BalatskiyDitë më parë
  • Pullys are nothing less than an incline plane.

    Microphonix Virtual StudioMicrophonix Virtual StudioDitë më parë
  • This is a perfect example of proving that there is always an equal and *opposite* reaction.

    Jordan StokesJordan Stokes2 ditë më parë
  • You would love watching a drilling rig trip pipe. The one I work on has a 12 line block being pulled by a 2000 hp draw works. Capable of lifting 1.2 million pounds.

    Mason TMason T2 ditë më parë
  • Genius teacher!!!

    Julius Dela CruzJulius Dela Cruz2 ditë më parë
  • i realy thought the sponsor for the video was Snatch block ... and now i have a realy big urge to buy one .... THX OBAMA

    Patrick AllenPatrick Allen2 ditë më parë
  • i stayed this entire physics lesson. unbelievable. thanks destin. you're a great man

    fas.hfas.h2 ditë më parë
  • Didn't watch the video, also love snatch.

    TRFriendlyTRFriendly2 ditë më parë
  • i dont get compound pulleys

    Tonasky -Tonasky -2 ditë më parë
  • Please tell me you know the difference between a winch and a wench.

    Bill KatzBill Katz2 ditë më parë
  • just found your channel. Love it! keep it up

    Jason BryantJason Bryant2 ditë më parë
  • So the diameter of the pulley has a lot to do with it also.

    ian reedian reed2 ditë më parë
  • Yeah the ratio changes each time the rope goes around the circumference of that pulley.

    ian reedian reed2 ditë më parë
  • Sooo how olds the daughter

    Mad PentagonMad Pentagon2 ditë më parë
  • He can get the 8x mechanical advantage with one pulley being 8x bigger

    Sammy DubourgSammy Dubourg2 ditë më parë
  • The guy that helped with the car is just pure awesome. A true rolemodel.

    Alexander NielsenAlexander Nielsen2 ditë më parë
  • 10:32 Pull on deez nuts

    Evan PriceEvan Price2 ditë më parë
  • Alabama!

    OmattersOmatters2 ditë më parë
  • Does this not remind anyone of dashie when he did the bopit video at 12:07 ?? 2:56 NOW PLAYING WATCH LATER ADD TO QUEUE

    Dre RadcliffDre Radcliff2 ditë më parë
  • Physics is amazing. Thank you!

    AmFilms123AmFilms1233 ditë më parë
  • Thanks for your kind words - Arcamedies

    Bandichod MadabandichodBandichod Madabandichod3 ditë më parë