Toughness

Definition and stakes

Albert G. Hadcock, Henry A. Bethell, Julian R. J. Jocelyn & Sydney R. Fremantle,  1911 Encyclopædia Britannica, Volume 20… (1911)

“ A stronger material than ordinary carbon gun steel was consequently demanded from the steel-makers, in order to keep the weights of the heavier natures of guns within reasonable limits. The demand was met by the introduction of a gun steel having about 4% of nickel in addition to about 0·4% of carbon. This alloy gives great toughness and endurance under a suitable oil hardening and annealing process, the yielding stress being about 26 tons to 28 tons and the breaking stress from 45 tons to 55 tons per square inch, with an elongation of 16%. ”
Source: Wikisource

Portrait of L. Adams Beck L. Adams Beck,  Dreams and delights (1922)

“ The name roughly signifies ‘the strength of weakness,’ and thus it arose. It was noted that the boughs of a willow were not broken by a heavy fall of snow when strong trees cracked beneath the weight. And why? Being pliant they bowed their weakness and the snow slipped off. My son, recall the Rule. ‘I have no strength. I make submission my strength.’ As with the soul so it is with the body. How shall I sum up this art of attack and self-defence? It is the perfect control of the mind resisting defeat. It is to use weakness in such a way that it masters brute strength. ”
Source: Gutenberg

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