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The question of whether a device will come into being depends upon three things: first, whether there is a practical use for it that warrants its development and manufacturing costs; second, whether the laws of physics applying to the elements available for its design allow the attainment of the needed ranges, sensitivities, or the like; and third, whether the pertinent art of manufacture has advanced sufficiently to allow a useful embodiment to be built successfully.

Vannevar Bush#58

InnovationDesignEngineeringManufacturingPossibility

About this quote

What does it mean?
A device will only be created if there is a practical use, if physics allows it, and if manufacturing technology is advanced enough.
In plain terms
Devices get built when they are useful, physically possible, and manufacturable.
What can you take from it?
Build only when there is a need, a physical possibility, and the means to make it.

Where it applies

  • engineering design
  • product planning
  • innovation management

Putting it to work

  • assess market need
  • check physical constraints
  • evaluate production capability

Questions to consider

  • Is your idea practical?
  • Can it be built?

Another view

Sometimes basic research precedes practical use.

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