References in classic literature ?
He was still in the air and in most unstable equilibrium, when the teamster hurled a thirty-pound lump of coal.
The air is an unstable medium at best, and quite without warning, at an acute angle, he entered an aerial tide which he recognized as the gulf stream of wind that poured through the drafty-mouthed Golden Gate.
Daily it is forced home on the mind of the geologist, that nothing, not even the wind that blows, is so unstable as the level of the crust of this earth.
She, with one foot in life and the other in a nightmare, was at the same time inert and unstable, and very much at the mercy of sudden impulses.
He was the most unstable kind of fool I had ever seen.
Though his wife had proved unstable his children were left to him.
Our society is indeed unstable when the custodians of its peace are thus openly and wantonly shot down.
The relations among the men, strained and made tense by feuds, quarrels and grudges, were in a state of unstable equilibrium, and evil passions flared up in flame like prairie- grass.
A heart weary and flippant; an unstable will; fluttering wings; a broken backbone.
Similarly, you may sometimes find on a mountain-side a large rock poised so delicately that a touch will set it crashing down into the valley, while the rocks all round are so firm that only a considerable force can dislodge them What is analogous in these two cases is the existence of a great store of energy in unstable equilibrium ready to burst into violent motion by the addition of a very slight disturbance.
We may say, speaking somewhat roughly, that a stimulus applied to the nervous system, like a spark to dynamite, is able to take advantage of the stored energy in unstable equilibrium, and thus to produce movements out of proportion to the proximate cause.
The change comes disturbingly, with the force of a sudden vocation, bringing in its train agonizing doubts, assertive violences, an unstable state of the soul, till the final appeasement of the convert in the perfect fierceness of conviction.