System for creating movement using a heat source and controlled by surface tension effects

A device for steering toward a central area a heat source that floats on a liquid and is repelled away from a repelling object, the device comprising:

• at least one heat-source container configured to float on the surface of a liquid, at least one structure connected to the heat-source container, at least one repelling object configured to be attached to an inner wall of an outer container at a vertical position that will coincide with the surface level of the liquid, and create, through surface tension, a first meniscus on the surface of the liquid and configured horizontally to influence the horizontal position of the heat-source container;
• the heat-source container configured to create, through surface tension, a second meniscus on the liquid surface along the outer perimeter of the heat-source container;
• the structure connected to the heat-source container configured to allow a heat source to be placed beneath part of the structure wherein the structure generates a horizontal force as heat rises from the heat source and creates a vertical thermal air flow that impinges on the structure and causes the thermal air flow to be redirected to a partially horizontal thermal air flow that generates the horizontal force that causes the floating part to move;
• the repelling object configured to create the first meniscus wherein the curvature of the first meniscus opposes the curvature of the second meniscus in order to create resistance that inhibits the heat-source container from moving horizontally toward the repelling object.