MIT+K12

Physics

  1. Thomas Young's Double Slit Experiment
  2. Bridge Design and Destruction! (part 1)
  3. Bridge Design (and Destruction!) Part 2
  4. Shifts in Equilibrium
  5. The Marangoni Effect: How to make a soap propelled boat!
  6. The Invention of the Battery
  7. The Forces on an Airplane
  8. Bouncing Droplets: Superhydrophobic and Superhydrophilic Surfaces
  9. A Crash Course on Indoor Flying Robots

The Marangoni Effect: How to make a soap propelled boat! The differences of surface tension between soap and water can really make things go! This video shows some interesting demos illustrating the Marangoni Effect. Two liquids with different surface tensions will result in a surface tension gradient, resulting in a net force. This phenomena applies to each of the demonstrations shown. Watch a demonstration of how Marangoni stress can be used to propel small boats around (the "soap-powered boat"). License: Creative Commons BY-NC-SA More information at http://k12videos.mit.edu/terms-conditions

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The Marangoni Effect: How to make a soap propelled boat!

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