A London Encyclopaedia, Or Universal Dictionary of Science, Art, Literature and Practical Mechanics: Comprising a Popular View of the Present State of Knowledge : Illustrated by Numerous Engravings, a General Atlas, and Appropriate Diagrams, Volumen6Thomas Curtis Thomas Tegg, 1829 |
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Página 339
... hyperbola . The last three of these only are peculiarly called conic sections . The more ancient mathematicians , before the time of Apollonius Pergaus , admitted only the right cone into their geometry , and they supposed a section ...
... hyperbola . The last three of these only are peculiarly called conic sections . The more ancient mathematicians , before the time of Apollonius Pergaus , admitted only the right cone into their geometry , and they supposed a section ...
Página 340
... hyperbola , two curves will be des- cribed , one on each side of the directrix ; which are called opposite hyperbolas . COR . 2. When the line SP comes into the position SAD , SP PE will be equal to SA , AD ; therefore SA is to AD in ...
... hyperbola , two curves will be des- cribed , one on each side of the directrix ; which are called opposite hyperbolas . COR . 2. When the line SP comes into the position SAD , SP PE will be equal to SA , AD ; therefore SA is to AD in ...
Página 340
... hyperbola , is called an abscissa . XIV . Any line passing through the centre of an ellipse or hyperbola , and terminated both ways by the curve in the former , but by the op- posite curves in the latter , is called a diameter . XV . A ...
... hyperbola , is called an abscissa . XIV . Any line passing through the centre of an ellipse or hyperbola , and terminated both ways by the curve in the former , but by the op- posite curves in the latter , is called a diameter . XV . A ...
Página 340
... hyperbola , is equal to the difference of the squares of half the transverse axis , and the distance of the focus from the centre . Because A M is bisected in C , the difference of the squares of AC and SC is equal to the rectangle AS M ...
... hyperbola , is equal to the difference of the squares of half the transverse axis , and the distance of the focus from the centre . Because A M is bisected in C , the difference of the squares of AC and SC is equal to the rectangle AS M ...
Página 340
... hyperbola in the points H , h , and lines be drawn from the centre through the points of intersection , these lines are called the asymptotes . PROP . XIII . Fig . 11 . If lines SH , Sh , drawn from the focus S to the points H , h , in ...
... hyperbola in the points H , h , and lines be drawn from the centre through the points of intersection , these lines are called the asymptotes . PROP . XIII . Fig . 11 . If lines SH , Sh , drawn from the focus S to the points H , h , in ...
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acid Æneid ancient angle appears axis Bacon beautiful body Browne's Vulgar Errours burning called Canterbury Tales carriage centre Chaucer chenoo church cloth coal coast cock cold color combustion common conic section considerable consists contains copper degree diameter directrix Ditto Dryden Ducat earth east ellipse equal Faerie Queene feet fire fixed flame France hath heat Henry Henry VIII Hudibras hydrogen hyperbola inches inhabitants iron island Ital Julius Cæsar kind king latus rectum means ment metal miles mixture n. s. Lat nature Opticks Paradise Lost person phlogiston piece pillars plants plate produced Prop quantity river Rixdollar round screw Scudo Shakspeare side signifies species Specific gravity Spenser strata stratum substance surface temperature things thou tion town weight wheel whole word
Pasajes populares
Página 274 - Are not the mountains, waves, and skies, a part Of me and of my soul, as I of them?
Página 21 - AH ! who can tell how hard it is to climb The steep where Fame's proud temple shines afar; Ah! who can tell how many a soul sublime Has felt the influence of malignant star, And waged with Fortune an eternal war; Check'd by the scoff of Pride, by Envy's frown, And Poverty's unconquerable bar, In life's low vale remote has pined alone, Then dropt into the grave, unpitied and unknown...
Página 322 - Reading maketh a full man, conference a ready man, and writing an exact man. And therefore if a man write little he had need have a great memory: if he confer little he had need have a present wit, and if he read little he had need have much cunning to seem to know that he doth not. Histories make men wise, poets witty, the mathematics subtle, natural philosophy deep, moral grave, logic and rhetoric able to contend,
Página 363 - Is there, in human form, that bears a heart — A wretch ! a villain ! lost to love and truth ! That can, with studied, sly, ensnaring art, Betray sweet Jenny's unsuspecting youth? Curse on his perjur'd arts ! dissembling smooth ! Are honour, virtue, conscience, all exil'd?
Página 422 - But hark ! a rap comes gently to the door ; Jenny, wha kens the meaning o' the same, Tells how a neebor lad cam' o'er the moor, To do some errands, and convoy her hame. The wily mother sees the conscious flame Sparkle in Jenny's e'e, and flush her cheek ; With heart-struck anxious care, inquires his name, While Jenny hafflins is afraid to speak : Weel pleased the mother hears it's nae wild, worthless rake. Wi...
Página 415 - Brethren, if any of you do err from the truth, and one convert him, let him know, that he *which converteth the sinner from the error of his way, shall save a soul from death, and shall hide a multitude of sins.
Página 400 - OH for a lodge in some vast wilderness, Some boundless contiguity of shade, Where rumour of oppression and deceit, Of unsuccessful or successful war, Might never reach me more.
Página 415 - To sit on rocks, to muse o'er flood and fell, To slowly trace the forest's shady scene, Where things that own not man's dominion dwell, And mortal foot hath ne'er, or rarely, been ; To climb the trackless mountain all unseen, With the wild flock that never needs a fold ; Alone o'er steeps and foaming falls to lean ; This is not solitude ; 'tis but to hold Converse with Nature's charms, and view her stores unroll'd.
Página 326 - Their blood is shed In confirmation of the noblest claim — Our claim to feed upon immortal truth, To walk with God, to be divinely free, To soar, and to anticipate the skies.
Página 282 - Yet when I approach Her loveliness, so absolute she seems And in herself complete, so well to know Her own, that what she wills to do or say, Seems wisest, virtuousest, discreetest, best.