OT, fun with a chain.

Wonder if a finite element analysis program could handle that ?>:-} ...Jim Thompson

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| 1962 | I love to cook with wine. Sometimes I even put it in the food.

The video used 50 meters of what looks like 1/8" (size 6) balls. 100ft should be sufficient at $22. Have fun.

I predict an oversupply of used bead chain being sold on Craigslist and eBay in a few weeks as people fail to find uses for 100ft of used bead chain.

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This would probably work with regular link chain if the fall is long enough. Anyone have a spare 100-foot tower and a bucket?

--

Tim Wescott 
Wescott Design Services 
http://www.wescottdesign.com

I don't think so, with bead chain there is a mechanically enforced minimum bend radius, but link chain can flop any which way.

Cheers

--
Syd

An experiment! An experiment!

While I can see the possibility that you are correct, I can also see that the radius of the bend at the top could be constrained not by the mechanics of the chain, but simply by inertial forces.

Now, where did I leave that thousand feet of anchor chain?

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Tim Wescott 
Control system and signal processing consulting 
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I figured a long piece of rope should work too. I think I've got a 200' piece at home... a bushel basket, and I'll stand on the the barn roof.

George H.

I bet the bend radius thing is critical. A rope will flop down onto the edge of the container and just slide over that, or hang up.

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Hanging up is a separate issue -- but I'll bet it's more so for rope than ball chain.

As far as flopping over the edge of the container -- it just can't. That would require an infinite (or at least arbitrarily small) bend radius, which would require infinite acceleration around the bend.

And infinite acceleration is hard to achieve in this imperfect world of ours.

--

Tim Wescott 
Wescott Design Services 
http://www.wescottdesign.com

Some ropes - I'm thinking natural fibre types with the fibres aligned particularly - seem to have a more-or-less minimum bend radius, so it could work.

Cheers

--
Syd

on 7/3/2013, George Herold supposed :

A Slinky is more fun!

What? No ceiling fans on 100 foot high ceilings?

Must be the whipping action at work.

Best regards, Spehro Pefhany

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"my ball and chain says NO!"

COWabunga!