At a high level, what we’re seeing here is a standard Samsung LCD TV with a 3D printed Etch a Sketch shell mounted on top of it. That alone would be a pretty neat project, and had [Ben] just ...

Reactants A and B diffuse through the shell and react to product C at the catalytically active nanoparticle (yellow) inside. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy ...