The Popular Educator, Volume 6John Cassell, 1855 |
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Page 410
... employed to represent lightning , for , as we have seen , flames are nothing more than gaseous substances heated to such a degree as to become luminous . As bodies become luminous at a high temperature , caloric seems to be then ...
... employed to represent lightning , for , as we have seen , flames are nothing more than gaseous substances heated to such a degree as to become luminous . As bodies become luminous at a high temperature , caloric seems to be then ...
Page 412
... employ several , one upon the other , and their successive reflections and refractions will give a more complete result . Glasses so placed are called piles , and are often employed to obtain a pencil of polarised light . Polarisation ...
... employ several , one upon the other , and their successive reflections and refractions will give a more complete result . Glasses so placed are called piles , and are often employed to obtain a pencil of polarised light . Polarisation ...
Page 425
... employed to obtain a pencil of white polarised light . The double refracting prism is also employed for the same purpose . Noremberg's Apparatus . - Noremberg has invented an appa- ratus , by means of which , at no great expense , most ...
... employed to obtain a pencil of white polarised light . The double refracting prism is also employed for the same purpose . Noremberg's Apparatus . - Noremberg has invented an appa- ratus , by means of which , at no great expense , most ...
Page 426
... employed in the observation of the colours of polarised light , and the study of circular polarisation in quartz . CIRCULAR POLARISATION . Rotation of the Plane of Polarisation . - When a polarised ray passes through a plate of quartz ...
... employed in the observation of the colours of polarised light , and the study of circular polarisation in quartz . CIRCULAR POLARISATION . Rotation of the Plane of Polarisation . - When a polarised ray passes through a plate of quartz ...
Page 427
... employed by Biot to measure the rotatory power of liquids . In a copper channel 9 , fastened to a support r , is a tube about eight inches long , containing the liquid on which we wish to experiment . This tube ether , which shows that ...
... employed by Biot to measure the rotatory power of liquids . In a copper channel 9 , fastened to a support r , is a tube about eight inches long , containing the liquid on which we wish to experiment . This tube ether , which shows that ...
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Common terms and phrases
according action adjective answer appear attraction become body bring called cause cent cloth coal combination common complete Compound consequently consists contains copper covers decimal direction divided effect electricity English English word equal equation exercise existence experiment expressed feeling figure fluid force French future Gerund give given glass Greek hand hold INDICATIVE INDICATIVE MOOD influence interest kind less LESSONS letters light magnetic manner means metallic mind MOOD moral Multiply nature needle negative noun object observed Past period person pile plate poles positive possess Present principle produced pronounced Pronunciation quantity ratio reason Reduce regard remain represented root rule sentence simple sound Spanish speak square syllable Tenses term thing thou tion turn verb virtue vowel whole
Popular passages
Page 684 - No more the woodman's ballad shall prevail ; No more the smith his dusky brow shall clear, Relax his ponderous strength, and lean to hear...
Page 700 - Toll for the brave ! Brave Kempenfelt is gone ; His last sea-fight is fought ; His work of glory done. It was not in the battle ; No tempest gave the shock ; She sprang no fatal leak ; She ran upon no rock.
Page 684 - Yes ! let the rich deride, the proud disdain These simple blessings of the lowly train ; To me more dear, congenial to my heart, One native charm, than all the gloss of art...
Page 405 - This is that which I think great readers are apt to be mistaken in. Those who have read of everything are thought to understand everything too; but it is not always so. Reading furnishes the mind only with materials of knowledge; it is thinking makes what we read ours.
Page 684 - Where once the sign-post caught the passing eye, Low lies that house where nut-brown draughts inspired, Where grey-beard mirth and smiling toil retired, Where village statesmen talk'd with looks profound, And news much older than their ale went round. Imagination fondly stoops to trace The parlour splendours of that festive place...
Page 684 - Ye friends to truth, ye statesmen who survey The rich man's joys increase, the poor's decay, 'Tis yours to judge, how wide the limits stand Between a splendid and a happy land.
Page 699 - Shoots into port at some well-havened isle, Where spices breathe, and brighter seasons smile, There sits quiescent on the floods, that show Her beauteous form reflected clear below, While airs impregnated with incense play Around her, fanning light her streamers gay; — So thou, with sails how swift! hast reached the shore " Where tempests never beat nor billows roar," And thy loved consort on the dangerous tide Of life long since has anchored by thy side.
Page 670 - The style of an author should be the image of his mind, but the choice and command of language is the fruit of exercise. Many experiments were made before I could hit the middle tone between a dull chronicle and a rhetorical declamation : three times did I compose the first chapter, and twice the second and third, before I was EDWAHD GIBBON tolerably satisfied with their effect.
Page 700 - Slaves cannot breathe in England ; if their lungs Receive our air, that moment they are free, They touch our country, and their shackles fall.
Page 700 - No powder'd pert proficient in the art Of sounding an alarm, assaults these doors Till the street rings. No stationary steeds Cough their own knell, while, heedless of the sound, The silent circle fan themselves and quake. But here the needle plies its busy task, The pattern grows, the well-depicted...