A method for metering a small volume of liquid is provided that leverages a dynamic redistribution provided by surface tension. A sample is made to over fill a metering cup, and occupy part of a surrounding overflow chamber, while providing a free surface above the metering cup and a rim surrounding the cup. Then retraction of the overflow volume to a critical point causes redistribution of the sample and a cleaving of the sample into a metered volume within the cup, and an overflow volume that is extracted.

Electron exchangers are placed in the conversion cell and divide it into cathode gas chamber, liquid conversion solution chamber together with a liquid flow distributor, and anode gas chamber. Voltage is applied to the electron exchangers to convert the liquid conversion solution to gases, and gases are released directly to the gas chambers. There are many puncture channels on the surfaces of the liquid flow distributor, and they are designed by critical surface calculations. The puncture channels have special designed patterns and are manufactured with a precision technology. A microprocessor connected to the cloud is responsible for artificial intelligence calculations, and it controls liquid and gas flow valves in the conversion cell. In producing the same amount of final gases, our method is energy efficient.