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Category: Science
Date: 06/28/13 05:55 PM

15 Responses to Fun With Chained Metal Beads

  1. Profile photo of Squrlz4Sale
    Squrlz4Sale Male 40-49
    6230 posts
    June 28, 2013 at 5:55 pm
    Link: Fun With Chained Metal Beads - A chain of metal beads exhibits some surprising behaviors.
  2. Profile photo of 5Cats
    5Cats Male 50-59
    31759 posts
    June 28, 2013 at 6:15 pm
    @5Cats: "Quite simple really! I don`t want to spoil the fun by explaining it..."

    @Squrlz4: "You have no idea, do you!"

    @5Cats: :blush: "Nope, not a clue..." :-(

    (Really though, his explanation works just fine. I`d like to see them stand on a ladder and do that! Physics is fun!)
  3. Profile photo of bacon_pie
    bacon_pie Male 30-39
    3061 posts
    June 28, 2013 at 6:35 pm
    I thought "Fun With Chained Metal Beads" was going to be something completely different.
  4. Profile photo of sbsherz80
    sbsherz80 Female 30-39
    111 posts
    June 28, 2013 at 7:29 pm
    I think the music was well placed in this case
  5. Profile photo of carmium
    carmium Female 50-59
    6381 posts
    June 28, 2013 at 8:28 pm
    I suggest the following:
    Bead chains have a certain limit to their flex; they are made of little barbells with their ends trapped in little balls and can only bend so far before breaking as it is. If a chain is pulled on at one end, that stiffness increases, and the chain must form an arc to leave the beaker.
    Anchor chains on a ship have more loosely attached links and don`t usually display this kind of behaviour when the anchor is dropped.
  6. Profile photo of Squrlz4Sale
    Squrlz4Sale Male 40-49
    6230 posts
    June 28, 2013 at 8:41 pm
    @ Carmium: Ooo, Carmium, I`m impressed! I like your reasoning.
  7. Profile photo of PinkRhoid
    PinkRhoid Male 18-29
    1239 posts
    June 28, 2013 at 11:05 pm
    It`s the same as a siphon from a water source high in elevation from the destination. If each bead is one gallon of water and we yank the tip out to the floor 50 gallons of pressure is pulling from the top when the end finally hits the floor. This momentum is kept up until the end. Not much different than water really.
  8. Profile photo of Nickel2
    Nickel2 Male 50-59
    5879 posts
    June 29, 2013 at 12:42 am
    @Carmium: My conclusion exactly.
  9. Profile photo of drawman61
    drawman61 Male 50-59
    7707 posts
    June 29, 2013 at 2:47 am
    Maybe if he stood on the empire state building it would reach the moon.
  10. Profile photo of Tiredofnicks
    Tiredofnicks Male 30-39
    5101 posts
    June 29, 2013 at 2:48 am
    I`ve seen ropes do the same but for once I haven`t even got a theory.
  11. Profile photo of drawman61
    drawman61 Male 50-59
    7707 posts
    June 29, 2013 at 2:48 am
    What if he stood on a ladder...in a really deep hole. That would confuse it.
  12. Profile photo of ferdyfred
    ferdyfred Male 40-49
    13595 posts
    June 29, 2013 at 1:30 pm
    now a religious sort would make a psalm of this
    But its all physics
  13. Profile photo of Squrlz4Sale
    Squrlz4Sale Male 40-49
    6230 posts
    June 29, 2013 at 2:58 pm
    There remain a lot of unanswered questions here. For example, could you get a rope to do the same thing? How about a heavy rope? Does it *have* to be a beaded chain? If so, why?

    (Carmium, I think you hit on some key points. I`d just like to see this tried with a rope.)
  14. Profile photo of carmium
    carmium Female 50-59
    6381 posts
    June 29, 2013 at 5:11 pm
    Squrlz: I think you`d have to weight the end of the rope to get it to pull hard enough, so you`d have to be a few floors in the air. But otherwise, sure, let`s see a test. Anyone?
  15. Profile photo of 5Cats
    5Cats Male 50-59
    31759 posts
    June 30, 2013 at 6:36 pm
    The rope would need to be really long, 100 feet or more, just to get it going & have enough time to see it happen.
    The drop would need to be long too, and the flexibility of the rope is important: to floppy and it won`t work, too stiff and it won`t fall properly.

    My Mum moved to a 4th floor apartment with a balcony, I`ll give it a try with the longest rope I can find :-) and report back!

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