Anyone seen one? I think it could be done.
Will a Newtons Cradle work with rings instead of balls?
#1
Posted 22 October 2014 - 09:18 AM
#2
Posted 22 October 2014 - 10:23 AM
I would have thought so. Surely the physics is the same?
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#3
Posted 22 October 2014 - 11:02 AM
I'm thinking so, but there will be a lot less mass, and they'll have to be hooked up through a strait pole with a bearing, so I'm not sure if they'll bounce as well.
#4
Posted 22 October 2014 - 12:12 PM
hmmm, ask sanic.
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#5
Posted 22 October 2014 - 01:23 PM
Who?
Also, the reason I'm asking, I've ended up with some very precisely milled aluminum rings that bounce off of each other with a satisfying noise. Wrench for scale.
#6
Posted 22 October 2014 - 05:26 PM
Gol may have been making a Sanic the Hedgehorgg reference, what with rings and such...
#7
Posted 22 October 2014 - 06:13 PM
Gol may have been making a Sanic the Hedgehorgg reference, what with rings and such...
I hope so.
Also, I think density might be the only issue. Since they're not balanced the same way a sphere would be, a slight wobble mess things up. Aside from that, I don't see any reason it wouldn't work the same. Weld little hoops on top and run a wire through them and do it up. Then paint them gold and start turning woodland critters into robots.
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#8
Posted 22 October 2014 - 06:22 PM
Gotta physics fast!!
#9
Posted 22 October 2014 - 06:36 PM
I'm actually going to use solid supports that thread into the rings so that wobbling won't be an issue.
Will be stopping by my friends machine shop friday to see what I can do.
#10
Posted 22 October 2014 - 08:57 PM
Solid supports are going to screw with the conservation of motion a bit, so the bounce duration will probably be shorter than a "normal" newton's cradle. I'd advise using some extremely well-lubricated bearings to mount the support to eliminate as much friction as possible (I assume they'll be hinged in some way).
#11
Posted 23 October 2014 - 05:45 AM
I'm going to use a few bearings I pulled from hard drives, I'm assuming they would be of high enough quality to make this work, if it's going to happen.
#12
Posted 23 October 2014 - 12:04 PM
I was talking about this with my friends at school, I think you might lose a lot of the energy because of the vibrations in the rings. It might work, but not for as long as one with solid balls.
#13
Posted 23 October 2014 - 12:18 PM
That's something I didn't consider. I wonder if I made it out of something super hard like Tungsten if it'd work. Still going to try the aluminum this weekend though.
Physics is a fickle mistress.
#14
Posted 25 October 2014 - 07:22 AM
So apparently the parts are too small for the guy I knew to work with. I'll have to come up with a new plan.
#15
Posted 25 October 2014 - 04:30 PM
Keep us posted and I want video when this baby's up and clacking.
#16
Posted 25 October 2014 - 06:36 PM
Yeah, I've got another plan I came up with today. If I finish up some stuff on my jeep tomorrow I might try it.
#17
Posted 25 October 2014 - 06:40 PM
Woo!! I'm honestly excited!
#18
Posted 30 October 2014 - 12:47 PM
Ok, so quick test using a few parts I had laying around. Vibrations are going to be a big thing, and I may need some harder metal to work with. I believe I have a solution for both.
#19
Posted 31 October 2014 - 11:00 AM
It kind of works! That's pretty cool.
#20
Posted 31 October 2014 - 05:07 PM
Yeah, that's with super thin bits of plastic from security badges. I think I just need to work on minimizing the lost energy.