Apparatus and method for producing inverse bubbles

摘要

An apparatus and method for producing inverse bubbles is disclosed. One embodiment of such apparatus includes a first solution in a container and a second solution in a reservoir above the container. The reservoir has a dispensing aperture and while dispensing drops of the second solution into the container, the aperture and the surface of the first solution are maintained at a substantially constant distance from one another. Another embodiment of the apparatus involves a gun-like device dispensing drops using projectile force. The method involves producing inverse bubbles using an aqueous first solution and an aqueous second solution. Each solution includes a substance for reducing water surface tension. A drop of the second solution is dispensed into the first solution at a velocity such that the drop impacts the surface with a force slightly in excess of the force component of the surface tension of substantially pure water. A liquid containing an inverse bubble is thereby produced.