There are several perfectly good reasons why water isn't a popular medium for calligraphers to write in.
An ingenious 'pen' developed by the researchers from Johannes Gutenberg University Mainz and the Technical University of Darmstadt in Germany, and Huazhong University of Science and Technology in China, could give artists a whole new medium to work with.in the liquid, creating zones of relatively low pH. Traces of particles suspended in the water are then drawn to the acidic solution. Drawing out that zone can create persistent, 'written' lines.
To keep the writing stable, the prototype moves the water around the bead, rather than moving the bead in the water. At first this was done manually, but later a programmable rocker device was used.
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