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A spade may be made of any size, and if the same number of…

“A spade may be made of any size, and if the same number of strokes be made in the hour, the requisite exertion will vary nearly as the cube of the length of the blade.” quote by William Stanley Jevons
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“A spade may be made of any size, and if the same number of strokes be made in the hour, the requisite exertion will vary nearly as the cube of the length of the blade.”

William Stanley Jevons

About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Work effort grows disproportionately with tool size; larger tools need dramatically more force for the same speed.

In simple terms: Bigger tools need much more effort.

Key Takeaway

Consider tool size when planning labor.

Themes

physics effort scaling

Mood

analytical technical

Type

educational explanatory

When to use this quote

  • construction
  • manual labor
  • engineering design
  • industrial planning

Key Concepts

cube law mechanics productivity

Questions to Reflect On

  • How does tool size affect your productivity?
  • Can you optimize effort by choosing smaller tools?
A Different Perspective

Assumes uniform stroke efficiency, which may vary with technique.

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