What is the Strongest Material in the World?
Researchers from the UK’s University of Portsmouth found that the teeth of a type of limpet [left], measuring just one millimetre across, are made from the strongest biological material in the world. The tensile strength of the teeth equates to a whopping 4.9 gigapascal (GPa). In comparison, a human tooth only achieves a maximum value of 0.5 GPa. The strength of the tiny limpet teeth [macro view, above] is comparable to the fibres used to make bulletproof vests.
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