Rube Goldberg ECS Project: Feed a gold fish.
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Steps include:
-Burning the string ( or the tennis ball soaked in rubbing alcohol) to drop the ball.
- the ball drops to turn a switch off, which disrupts the circuit of the electromagnet holding the toy train from falling. ( train falls)
- train hits a tennis ball, which sets off a domino effect with books.
- last books knows a plank set on a hinge, which knocks over a cup, sending goldfish pellets down a ramp into a fish bowl.