Harpo's World

comic book page about a contraption to make electricity with dog power.
Page 2

PERSIA: Harpo sees the pizza and starts running!

AKANE: This lowers the basket which pulls the rope and lifts the pizza out of the box.

PERSIA: The gears turn…

AKANE: …which generates electricity and turns on the light.

TEEGAN: I thought inventions were supposed to make things easier.

PERSIA: It's easy for us.

TEEGAN: How do you turn it off?

PERSIA AND AKANE: Hmmm—hadn't thought of that.

SQUIRREL (thinking): I don't think that will be a problem.


  • contraption: A mechanical device; a gadget.

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  1. Which simple machine is used most often in this invention?
  2. Describe how a lever is used in this invention.
  3. If the lever were removed from this machine, what other parts of the machine would need to change to make the invention work?