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The team argues that graphene’s dynamic strength is significant as it may behave similarly to materials specifically engineered to stop bullets, such as Kevlar, a fabric composed of aromatic polyamide threads.

With the same carbon content and say 5 per cent nickel, the structure would still be pearlitic, but much finer and denser, therefore capable of withstanding shock, and having greater dynamic strength.

Vanadium added to low-carbon pearlitic manganese steel has a very marked effect, increasing greatly the dynamic strength and changing slightly the susceptibility of this steel to heat treatments, giving a greater margin for the hardening temperature.

As an instance, 1 per cent nickel would have the effect of lowering the upper critical range from 25 to 30°F. Low-carbon pearlitic-manganese steel, heat-treated, will give dynamic strength which cannot be equaled by low-priced and Page 30 necessarily low-content nickel steels.

These men, whatever occupation they follow, be it that of abstract thinking, or literary production, or scientific research, or the conduct of affairs, whether commercial or political or administrative, are the dynamic strength of the country when they enter manhood, and its realised wealth when they are in their fullest vigour thirty years later.