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Re: Memory effect of balls
Assuming by memory effect, you're referring to the tendency to return to an 8" sphere, I found that the balls all have a memory effect, but depending on the deformation it may take longer to return to the original shape. I don't know how verifiable that claim is, but it's based on my having stepped on a ball (not straight down) and its taking some 30 or 40 seconds to return to a sphere.
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Larry
Saints Robotics 1899
High school intern at FIRSTWA
2011 Seattle Olympic Regional:
Website Excellence, FIRST Dean's List Award (for team captain Kevin Kimura), Tournament Winner (Thanks 3393 and 2990!), Chairman's Award Winner
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