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Aristotle's Book Of Problems, a non-fiction book by Aristotle |
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Of The Roof Of The Mouth |
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_ Q. Why are fruits, before they are ripe, of a bitter and sour relish, and afterward sweet? A. A sour relish or taste proceeds from coldness and want of heat in gross and thick humidity; but a sweet taste is produced by sufficient heat; therefore in the ripe fruit humidity is subtle through the heat of the sun, and such fruit is commonly sweet; but before it is ripe, as humidity is gross or subtle for want of heat, the fruit is bitter or sour. Q. Why are we better delighted with sweet tastes than with bitter or any other? A. Because a sweet thing is hot and moist, and through its heat dissolves and consumes superfluous humidities, and by this humidity immundicity is washed away; but a sharp, eager taste, by reason of the cold which predominates in it, doth bind overmuch, and prick and offend the parts of the body in purging, and therefore we do not delight in that taste. Q. Why doth a sharp taste, as that of vinegar, provoke appetite rather than any other? A. Because it is cold, and doth cool. For it is the nature of cold to desire to draw, and therefore it is the cause of appetite. Q. Why do we draw in more air than we breathe out? A. Because much air is drawn in that is converted into nutriment, and with the vital spirits is contained in the lungs. Therefore a beast is not suffocated as long as it receives air with its lungs, in which some part of the air remaineth also. Q. Why doth the air seem to be expelled and put forth, seeing the air is invisible, by reason of its variety and thinness? A. Because the air which is received in us, is mingled with vapours and fumes from the heart, by reason whereof it is made thick, and so is seen. And this is proved by experience, because that in winter, we see our breath, for the coldness of the air doth bind the air mixed with fume, and so it is thickened and made gross, and by consequence is seen. Q. Why have some persons stinking breath? A. Because of the evil fumes that arise from the stomach. And sometimes it doth proceed from the corruption of the airy parts of the body, as the lungs. The breath of lepers is so infected that it would poison birds if near them, because the inward parts are very corrupt. Q. Why are lepers hoarse? A. Because the vocal instruments are corrupted, that is, the lights. Q. Why do persons become hoarse? A. Because of the rheum descending from the brain, filling the conduit of the lights; and sometimes through imposthumes of the throat, or rheum gathering in the neck. Q. Why have the females of all living creatures the shrillest voices, the crow only excepted, and a woman a shriller and smaller voice than a man? A. By reason of the composition of the veins and vocal arteries the voice is formed, as appears by this similitude, that a small pipe sounds shriller than a great. Also in women, because the passage where the voice is formed is made narrow and strait, by reason of cold, it being the nature of cold to bind; but in men, the passage is open and wider through heat, because it is the property of heat to open and dissolve. It proceedeth in women through the moistness of the lungs, and weakness of the heat. Young and diseased men have sharp and shrill voices from the same cause. Q. Why doth the voice change in men at fourteen, and in women at twelve; in men they begin to yield seed, in women when their breasts begin to grow? A. Because then the beginning of the voice is slackened and loosened; and this is proved by the similitude of the string of an instrument let down or loosened, which gives a great sound, and also because creatures that are gelded, as eunuchs, capons., etc., have softer and slenderer voices than others, by the want of their stones. Q. Why do small birds sing more and louder than great ones, as appears in the lark and nightingale? A. Because the spirits of small birds are subtle and soft, and the organ conduit strait, as appeareth in a pipe; therefore their notes following easily at desire, they sing very soft. Q. Why do bees, wasps, locusts and many other such like insects, make a noise, seeing they have no lungs, nor instruments of music? A. Because in them there is a certain small skin, which, when struck by the air, causeth a sound. Q. Why do not fish make a sound? A. Because they have no lungs, but only gills, nor yet a heart, and therefore they need not the drawing in of the air, and by consequence they make no noise, because a voice is a percussion of the air which is drawing. _ |
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