It would not be amiss in Willy Wonka’s Chocolate Factory: a 3D printer that produces chocolate with the ultimate mouthfeel. Researchers  came up with a technique to print chocolate with extremely pleasant crunchiness. (Photo: Pixabay)

Material experts make ‘meta chocolate’

They have odd electromagnetic properties, or can be ultra-light and strong. Metamaterials are the crème de la crème for material experts, and perhaps for chocolatiers too. ...

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