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December 5 2012
Scientists have used nanotechnology to create “selectively wet” materials that can be used to write long-lasting messages with water.
The concept, called "hydroglyphics," was exhibited by scientists at Harvard who recently teamed up with a group of Merrimack, N.H., high school students and faculty to make an educational demo.
The demo, appropriately entitled "Hydroglyphics," helps people visualize the difference between water repelling and wetting surfaces.
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