"The heat causes the wires to expand, imperceptibly to the naked eye, " Donovan said.
He might have added that it made progress in a normal way: almost imperceptibly.
History is littered with once-dominant institutions that were imperceptibly hollowed out and then suddenly collapsed.
The programme's reporting merges imperceptibly with the frequent election advertisements for Mr Mugabe.
But every time she expressed these opinions, she also (almost imperceptibly) shuddered.
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The concerto's opening is notable because the piano enters almost imperceptibly.
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She is a nobody, a casual extra, except that, when they grasp each other en passant, and as take follows take, she becomes, imperceptibly, a somebody.
Every two minutes its 220, 000 giant glass mirrors, lined up in perfect rows, rotate imperceptibly with a barely audible click, tracking the sun's path across the sky.
Indeed, what is the down-to-the-millisecond precision of digital time against this beautiful, whole sense of the day moving imperceptibly across the world, as if in a hush.
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Techniques like this tell us that the mind of the pessimist is drawn imperceptibly toward the negative while the upbeat and positive is a magnet for the optimist.
He was walking slowly, as before, hands behind his back, as before, and he seemed to pause when he saw me, almost imperceptibly, head lowered now, path not quite steady.
Over the centuries both the Nile and the desert sands imperceptibly shifted, and this temple was lost to the world until 1813, when it was accidentally rediscovered by the Swiss explorer Jean-Louis Burckhardt.
In her evolving world, which has encountered the Sex Pistols and civil partnerships, the Queen and the monarchy she only inherited because her uncle chose love over duty has moved slowly, often imperceptibly with the times.
If China reciprocated, it did so imperceptibly.
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Paradoxical deaths and destinies, yet they do not eclipse the case of Rousselot, of the enigma that imperceptibly enveloped his life, the sense that his work, his writing, stood near or on the edge of something he knew almost nothing about.
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