Ropes and Balls

So what did the group come up with for things ropes and balls could model?

• a rope
  • rope (of course)
  • a bird
  • an orbit
  • endoplasmic reticulum
  • a subway system
  • DNA
  • the genesis of both chaos and cooperation
• a ball
  • a ball(who would've thunk it?)
  • Earth
  • a planet for its spherical geometry
  • its bouncing to illustrate consevation of energy-momentary damped oscillation
  • a cell's nucleus with endoplasmic reticulum