29Pneumatics and hydraulics

Use gas and liquid parts of an object instead of solid parts (e.g. inflatable, filled with liquids, air cushion, hydrostatic, hydro-reactive).
  • Comfortable shoe sole inserts filled with gel
  • Store energy from decelerating a vehicle in a hydraulic system, then use the stored energy to accelerate later.
TRIZ image

This principle is proposed to solve the following contradictions:
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