Do you need some physics to go with your beads? Well, here it is. Actually, I will let you do the physics (for now - meaning if you don't analyze these, I will).
Here are some pictures of a broken strand of beads. I hung them on my fence - you know, for display. Click the image to get a larger analyzable version. Oh - I just happened to include a meter stick in the image. Also, just for show I included a level (that is level).
Now, I have two videos. In both of these videos, I again included a meter stick. You know...because I like meter sticks. Also, I am posting these videos on vimeo primarily because you can download by default from vimeo without any tricks.
Bead Physics 1 from Rhett Allain on Vimeo.
Bead Physics 2 from Rhett Allain on Vimeo.
PS: Don't forget about Tracker Video. If you analyze any of this stuff, I would love to hear what you find.
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Perfect for a Dan Meyer "WCYDWT."
You are trying to provide examples of catenary on the picture above, eh? I have been trying to derive the equation for quiet a while now, but it is killing me.
http://en.wikipedia.org/wiki/Brachistochrone_curve :)