Researchers find cuttlebone's microstructure sits at a 'sweet spot'

(Virginia Tech) Ling Li has a lesson in one of his mechanical engineering courses on how brittle materials like calcium carbonate behave under stress. In it, he takes a piece of chalk composed of the compound and snaps it in half to show his students the edge of one of the broken pieces. The break is blunt and straight.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news