cocktail boat!-Make it float

thingiverse

This is my entry for the make it float challenge. My boat takes advantage of a phenomenon called the Marangoni Effect, which generates propulsion by utilizing two liquids with differing surface tensions. As the liquid with high surface tension inside leaks out into the channel and onto the outside liquid with lower surface tension, a gradient forms - this gradient creates a force that propels the boat forward. To get my boat moving, you can place vodka or soap in its center; vodka works particularly well. Next, fill the glass or bow of the boat with water, as vodka and soap have higher surface tensions than water. This causes the liquid to move around the bowl. Feel free to experiment with other combinations of liquids - I've found several that work remarkably well. For a more in-depth look at how my boat works its magic, be sure to check out my video for further details.