cocktail boat!-Make it float

thingiverse

This is my entry for the make it float challenge. This boat works by an effect called the Marangoni Effect. This effect create propulsion by using to liquids with different surface tension. When the liquid with high surface tension on the inside leaks out of the channel. And into the liquid with a lower surface tension on the outside, it create a gradient this gradient create a force that pushes out of the boat. To make this boat work you can put for example (vodka or soap) in the center (vodka works better) and put water in the glass or bow and because vodka and soap have higher surface tension then the water it moves around the bowl. (there are many more combinations of liquids but those are the best that worked for me) Watch my video for more info