Combining systems
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Combining Systems. Subsystem: a secondary or subordinate system that is part of a larger system Ex. The brake system in a car. Rube Goldberg Pencil Sharpener.

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Rube goldberg pencil sharpener
Rube Goldberg Pencil Sharpener a larger system

Open window (A) and fly kite (B).  String (C) lifts small door (D) allowing moths (E) to escape and eat red flannel shirt (F).   As weight of shirt becomes less, shoe (G) steps on switch (H) which heats electric iron (I) and burns hole in pants (J).   Smoke (K) enters hole in tree (L), smoking out opossum (M) which jumps into basket (N), pulling rope (O) and lifting cage (P), allowing woodpecker (Q) to chew wood from pencil (R), exposing lead.  Emergency knife (S) is always handy in case opossum or the woodpecker gets sick and can't work.


The picture taking machine
The Picture Taking Machine a larger system

  • As you sit on pneumatic cushion (A), you force air through a tube (B) which starts ice boat (C), causing lighted cigar butt (D) to explode balloon (E).   Dictator (F), hearing loud report, thinks he's been shot and falls over backward on bulb (G), snapping picture!


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