The Young Gentleman and Lady's Philosophy,: Containing, I. The use of the celestial and terrestrial globes. II. The philosophy of light and colours, and the use of all sorts of optical instruments. III. The philosophy of sounds, music, and the organization of the ear. Illustrated by nineteen copper-platesW. Owen, Temple-Bar; and by the author, at his house in Fleet-Street., 1772 - Science |
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Page 163
... apparent Magnitude of the Object ; thus , for Inftance , if you extend your Arm , and hold up your Finger against the Ball under the Crofs , on the Top of St. Paul's Cathedral , it will appear much bigger than that Ball does , because ...
... apparent Magnitude of the Object ; thus , for Inftance , if you extend your Arm , and hold up your Finger against the Ball under the Crofs , on the Top of St. Paul's Cathedral , it will appear much bigger than that Ball does , because ...
Page 258
... apparent Diameters were to each other as 32 to 1.— By this Experiment of the ... Magnitude , than was heretofore fuppofed . Cleon . Yes , the now dwindles ... Magnitude , or to little more than half that of the Earth , and must now be ...
... apparent Diameters were to each other as 32 to 1.— By this Experiment of the ... Magnitude , than was heretofore fuppofed . Cleon . Yes , the now dwindles ... Magnitude , or to little more than half that of the Earth , and must now be ...
Page 278
... apparent Magnitude of Bodies : For when you would compare the apparent Magnitude of any two Objects , you only move the Inftrument in fuch a Manner , as fhall bring the Image in each Object fucceffively upon the Threads of the Screw ...
... apparent Magnitude of Bodies : For when you would compare the apparent Magnitude of any two Objects , you only move the Inftrument in fuch a Manner , as fhall bring the Image in each Object fucceffively upon the Threads of the Screw ...
Page 351
... apparent Magnitude than other People do , a Thing I remember you formerly obferved to me.- You will next favour me with an Experiment of a long - fighted Eye , which requires a Convex Glafs . Cleon . In order to this , I fhall put on ...
... apparent Magnitude than other People do , a Thing I remember you formerly obferved to me.- You will next favour me with an Experiment of a long - fighted Eye , which requires a Convex Glafs . Cleon . In order to this , I fhall put on ...
Page 352
... apparent Magnitude , as the Scale of Com- parifon is ftill the fame in all ; for Things are only great or fmall , by Comparison made in the fame Scale , or by the fame Standard.There is only one Thing now which remains to be confirmed ...
... apparent Magnitude , as the Scale of Com- parifon is ftill the fame in all ; for Things are only great or fmall , by Comparison made in the fame Scale , or by the fame Standard.There is only one Thing now which remains to be confirmed ...
Common terms and phrases
Aftronomers alfo anſwer apparent Magnitude appear becauſe Brafs Cafe called Circle Cleon Cleonicus Colours confequently confiderable confifts Conftellations Conftruction Convex Courſe curious defcribed Defign Degree Diameter diftant diftinct diurnal Motion eafily eafy Earth Ecliptic Euphrof Euphrofyne faid fame farther fecond feems feen feven feveral fhall fhew fhould fince fingle firft firſt fmall focal Diſtance folar fome Form ftill fuch fufficient fuppofe Glaffes Glafs Glaſs Globe Hemifphere Horizon Image Inches Inftance Inftrument interfect itſelf juft laft Latitude lefs magnifying Manner meaſure Meridian Microſcope moft Monochord Moon moſt Motion mufical muft muſt Nature neceffary Number obferve Object Occafion Octave optical pafs Phænomenon Place Planet pleaſe Pleaſure Pofition Point pray prefent Purpoſe Rays Reafon reflected refracted reprefent Retina Rifing ſmall Sound Speculum Stars String Sun's Surface Teleſcope thefe theſe Thing thofe thoſe Tranfit underſtand Uſe Vibrations View Vifion Weft whofe
Popular passages
Page 39 - When grown to manhood he begins his reign, And with stiff pinions can his flight sustain, He lightens of its load the tree that bore His father's royal sepulchre before, And his own cradle: This (with pious care) Plac'd on his back, he cuts the buxom air, Seeks the Sun's city, and his sacred church. And decently lays down his burden in the porch.
Page 105 - Elevate the pole for the latitude of the place; find the sun's place in the ecliptic, and bring it to the meridian, and set the index...
Page 38 - The horses started with a sudden bound, And flung the reins and chariot to the ground ; The studded harness from their necks they broke, Here fell a wheel, and here a silver spoke, Here were the beam and axle torn away; And, scatter'd o'er the earth, the shining fragments lay.
Page 21 - Then may he cast his Juno off, and lead The great Lycaon's offspring to his bed. But you, ye venerable pow'rs, be kind, And, if my wrongs a due resentment find, Receive not in your waves their setting beams, Nor let the glaring strumpet taint your streams.
Page 211 - ... an instrument so excellent, as " to show things almost a thousand times larger, and above thirty times nearer to the naked eye.
Page 17 - Balance, hung on high, Betwixt the nights and days divides the sky, Then yoke your oxen, sow your winter grain, Till cold December comes with driving rain. Linseed and fruitful poppy bury warm, In a dry season, and prevent the storm. Sow beans and clover in a rotten soil, And millet rising from your annual toil...
Page 211 - Badoverie, at Paris, I applied myself to consider the reason of it, and by what means I might contrive a similar instrument, which I afterwards attained to by the doctrine of refractions.
Page 21 - em through the air In whirlwinds up to heaven, and fix'd 'em there : Where the new constellations nightly rise, And add a lustre to the northern skies. When Juno saw the rival in her height, Spangled with stars, and circled round with light, She sought old Ocean in his deep abodes, And Tethys ; both revered among the gods. They ask what brings her there : " Ne'er ask," says she, " What brings me here, heaven is no place for me.
Page 39 - An infant Phoenix from the former springs, His father's heir, and from his tender wings Shakes off his parent dust ; his method he pursues, And the same lease of life on the same terms renews : When grown to manhood he begins his reign, And with...
Page 18 - Where, in the void of heaven, a space is free, Betwixt the Scorpion and the Maid, for thee ? The Scorpion, ready to receive thy laws, Yields half his region, and contracts his claws.