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the doohickies are in optimal condition. i think
(files.catbox.moe)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
It's an engine with a single large piston, and combustion occurs each time it jumps.
no it's a thingamabob. it is powered by a whatsit that turns a gizmo that makes the plunger plung.
Finally, someone who understands science
Good ol' ground compactor, I think, though I think they usually have a higher frequency than that.
Might be because he isn't controlling it.
Here is a restoration on it