This amazing video of a rainbow-painting robot. (h/t: Science Friday.)

Guiding Questions

  • How much paint did this guy need of each color?
  • What’s the radius of the rainbow? or, What’s the length of the arm that moves in a semi-circle that paints the rainbow?
  • Which color will run out soonest? And how much sooner?
  • What would the rainbow look like if he peddlded while the spraypainting arm was in action?
  • Could we do this for our integrated Math-Science Engineering final project?

Suggested Activities

To be decided, but here’s a screen shot if it helps.

2 thoughts on “A single robot-made rainbow ; what does it mean?

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