Cómo hacer fluido no newtoniano (experimento casero)

Scientific Concepts and Phenomena Presented

• Non-Newtonian fluids

  • Fluids whose viscosity changes over time/conditions (and, in this experiment, strongly with applied force/pressure).
  • Contrast with Newtonian fluids, which keep a constant state/behavior under time (example given: water).

• Phase/behavior change under applied stress (liquid ↔ solid-like)

  • The video describes a homemade material that behaves like:
    • Liquid under gentle movement (flows through fingers)
    • Solid/hard under sudden force (compacts dramatically, “like hitting a wall”)

• Example materials mentioned

  • Glue: transitions from liquid to solid over time (as described).
  • Paint: thickens/drys from liquid to solid (as described).

• Mechanism of viscosity change (discontinuous thickening / jamming-like behavior)

  • When treated gently:
    • The mixture reduces viscosity
    • Particles have time to rearrange and flow
  • Under high pressure/force:
    • Particles become entangled
    • They don’t have time to organize
    • Viscosity increases until reaching a solid-like state

DIY Methodology (Experiment Outline)

• Use a large container for space.
• Add cornstarch / cornflour to the container (the video suggests filling almost the entire container).
• Slowly add water little by little until reaching the desired consistency.
• Test behavior:
  • Gentle motion → mixture behaves liquid
  • Applied force/pressure quickly → mixture behaves solid/hard
• Consistency checks described:
  • Gently place fingers → fingers sink
  • Grab/press forcefully → reaction is resistant, like hitting a wall

Researchers or Sources Featured

• No specific researchers or external sources are mentioned in the subtitles.