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

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Published 2019-12-05
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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
$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:
www.nodumbquestions.fm/listen/2019/9/21/067-the-lo…

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-ar…

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:    • 4x4 Winch Dampeners | Do They Work?  

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 YouTube channel which you can enjoy here!
   / @jeremyfieldingsr  

A special thank you to @MurkyWanders on Twitter for videoing the Atlantis exhibit for us.

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Warm Regards,

Des

All Comments (21)
  • @smartereveryday
    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.
  • @isaacr.8082
    People are really going to be really impressed when I bring snatch blocks to the gym.
  • Kid: "Hey dad, why did you call my sister Rose?" Destin: "Because mom loves roses" Kid: "Thanks, dad" Destin: "No problem, snatch block"
  • @BenCDawson
    The guy that stopped to help you gave me a big smile too, hands weathered from what must have been a lifetime of physical labor gave and instantly knowing what to do, how to help and taking the time out of his day to stop for a stranger, very respectable and heartwarming.
  • @SonOfPsalms
    This man could sell snatch blocks to a snatch block salesman
  • @oafkad
    "Pulleys are my favorite things in the whole world." Laminar Flow - "Am I a joke to you?"
  • @Daniel-gs5wv
    Was it just me or did his accent get stronger when working with the old guy.
  • A rule of thumb we always used for figuring out mechanical advantage for rope rescue systems was, if the pulley (or snatch block) is moving with the load, it is providing a mechanical advantage. If it is not moving with the load (i.e. it is attached to an anchor point not a part of the load) it is only providing a change of direction.
  • Yes pulleys are amazing but always remember the safe working limit of your cable / line / rope / strop etc quickly becomes the governing factor. Great production by the way, makes learning stuff fun !
  • @willnisbet4338
    I love how dustin’s accent magically reappears when talking to other southerners.
  • @HotDogOsborn
    Hey Destin, I bought some Snatch Blocks after this video came out (Same ones you used). Never used them but I got to today! We used a double snatch to lift up a heavy piece of furniture up some stairs. Only knew how to do it because of this video.
  • @jennted
    Your enthusiasm for science and engineering is contagious! We've got snatch blocks on our wish lists now! We have also loved kiwi crates, my oldest spends hours building and playing with the awesome things they send her. Thank you for your video.
  • @psalmyyvan
    Destin : This are like, my most favorite thing in the world. Laminar flow : am I a joke to you
  • @JACk79457
    I am so happy I was recommended this by YouTube. This guy was fun, I loved the interaction with his kids, and all the visuals and everything about the way he teaches! The snatch block was awesome and now I’m thinking how I can use something like this at my construction job!
  • I love how you transmit your enthusiasm about understanding how things work, great work!
  • I felt like I was watching a really long advertisement for a product called snatch block
  • @victorrosales35
    This guy is the physics teacher we hoped for but never got.
  • This was very, very informative and enlightening. Thank you for taking the time to demonstrate all key facets of pulley utilization, and the mechanical leverage advantage that is achieved. It's also good to see Jeremy, as I have watched a great many of his videos (if not all!) on electrical motors (he's genius). Thank you for putting this out. God Bless.