Oxidation of iron, also known as rusting, will do the trick. ... www.sciencebuddies.org/science-fair-pr... - 32k - ) Experiment from website: Objective The goal of this experiment is to measure the percentage of oxygen in air samples. Introduction We live near the bottom of an ocean of air that surrounds the earth.
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An integrator may also be a systems integrator. An integrator is a component whose output signal is the time integral of its input signal. It is the continuous analog of a counter, cumulating the input into an output.Integration is an important part of many engineering and scientific calculations.Mechanical integrators are used in such applications as metering of water flow or electric power.n integrator will have a low pass filtering effect but when given an offset it will accumulate a value building it until it reaches a limit of the system or overflows. A voltage integrator is an electronic device performing a time integration of an electric voltage, thus measuring the total volt-second product.