1. Exploring forces that have increasing effect with decreasing scale
Nano Propulsion
Exploring forces that have increasing effect with decreasing scale
Intermolecular Collisions (Brownian Motion)
Surface Tension
Recoil from release of bubbles from a surface
Electrostatic Forces

2. Hydrogen Peroxide and Platinum
Recoil from bubble release propels the boat forward
Hydrogen Peroxide Solution
Foam Boat
Platinum-on-Carbon and Nafion
Bubbles released from platinum surface

3. Surface Tension and Propulsion
Isopropanol
(IPA)
Area of Reduced Surface Tension
Water
The reduced inward tension of IPA results in a greater outward force on the boat (as compared to water), causing a net forward propulsion.