@future.xplanation on Instagram: "Researchers have demonstrated a new 3D printing method that appears to build ceramic structures in midair. The process combines direct ink writing with up-conversion particle–assisted photopolymerization, allowing the material to solidify precisely where light is applied. By curing the ink instantly, the technique eliminates the need for support structures, which are typically required in ceramic printing. This matters because it enables more complex geometries,

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