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Uploaded on Jan 20, 2012
In this experiment, we taped a piece of paper onto half of a sheet of transparency film and then put the sheet on top of a cup of tap water. The paper is on the underside. The result shows significant condensation onto the paper but no condensation onto the plastic surface. This suggests that the water absorptivity of paper is critically important to "grow" the water nano layers, which is why chemists need to prepare good substrates for initiating crystal growth.