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Aug 31, 2022, 6:44 pm155 pts
Ars Technica
Enlarge / 3D-printed lithophanes can help optically impaired scientists “see” data, such as from protein separation gels, with their fingertips. (credit: ordan Koone/Bryan Shaw) In the 19th century, an art form known as lithophanes was all the rage in Western Europe. These thin engravings were usually made…
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