Primer First (-Fourth, Sixth) reader |
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Страница 36
... Wheel and Axle , which are modifications of the lever . 4. The INCLINED PLANE . 5 . The Wedge , which is a modification of the inclined plane . 6 . The Screw , which also is a modifica- tion of the inclined plane . 2. The LEVER . The ...
... Wheel and Axle , which are modifications of the lever . 4. The INCLINED PLANE . 5 . The Wedge , which is a modification of the inclined plane . 6 . The Screw , which also is a modifica- tion of the inclined plane . 2. The LEVER . The ...
Страница 39
... wheel is the fulcrum , the load in the body of the barrow is the weight to be moved , and the strength used to wheel it is the power ( Fig . 6 ) . When a man thrusts a handspike or crowbar under a heavy box or block of stone , and moves ...
... wheel is the fulcrum , the load in the body of the barrow is the weight to be moved , and the strength used to wheel it is the power ( Fig . 6 ) . When a man thrusts a handspike or crowbar under a heavy box or block of stone , and moves ...
Страница 41
... wheel to be set in motion is the weight . The foot- board of a street knife - grinder's grindstone is an illustration of the same principle . 5. Common levers are used , for the most part , to raise weights to a small height , and this ...
... wheel to be set in motion is the weight . The foot- board of a street knife - grinder's grindstone is an illustration of the same principle . 5. Common levers are used , for the most part , to raise weights to a small height , and this ...
Страница 43
... WHEEL at once . ways . The advantage of the wheel over the separate spokes or handspikes is , that it can always be turned round continuously by a force acting only on a small part of its circle . This may be done in two different For ...
... WHEEL at once . ways . The advantage of the wheel over the separate spokes or handspikes is , that it can always be turned round continuously by a force acting only on a small part of its circle . This may be done in two different For ...
Страница 44
... wheel with a groove on its outer edge - that is , a pulley , instead of a ring - the friction would be much less , and your power conse- quently much greater . 10. Thus , again , you easily pass to the THIRD MECHANICAL POWER — that of ...
... wheel with a groove on its outer edge - that is , a pulley , instead of a ring - the friction would be much less , and your power conse- quently much greater . 10. Thus , again , you easily pass to the THIRD MECHANICAL POWER — that of ...
Често срещани думи и фрази
Antony apparent magnitude army atom battle body born Brutus Cæsar called carbonic acid Charles Church clouds colour COMPOSITION.-Write dark death died distance Duke Duke of Guise earth electricity Emperor enemies England English equal Europe eyes father feet Fifth Reader flower force France French fulcrum George George III German glass Greek hand hath head heart heat heaven Henry Henry of Navarre honour House of Hanover hydrogen inches inclined plane India Julius Cæsar kind King language Latin lens lever light living London look Lord Louis Louis XIV Mark Antony metal miles moon murdered Napoleon night nitrogen noble oxygen passed peace plants Pole Prince pulley Queen reign rise Roman Rome round Russia side soldiers Spain substance surface thee things thou turn weight wheel whole words
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Страница 321 - Romans, countrymen, and lovers, hear me for my cause, and be silent, that you may hear. Believe me for mine honour, and have respect to mine honour, that you may believe. Censure me in your wisdom, and awake your senses, that you may the better judge. If there be any in this assembly, any dear friend of Caesar's, to him I say, that Brutus' love to Caesar was no less than his.
Страница 325 - But here's a parchment, with the seal of Caesar, I found it in his closet, 't is his will : Let but the commons hear this testament, (Which, pardon me, I do not mean to read,) And they would go and kiss dead Caesar's wounds, And dip their napkins...
Страница 322 - Here comes his body, mourned by Mark Antony : who, though he had no hand in his death, shall receive the benefit of his dying, a place in the commonwealth ; as which of you shall not ? With this I depart ; that, as I slew my best lover for the good of Rome, I have the same dagger for myself, when it shall please my country to need my death.
Страница 343 - Like the leaves of the forest when Summer is green, That host with their banners at sunset were seen; Like the leaves of the forest when Autumn hath blown, That host on the morrow lay withered and strown . For the Angel of Death spread his wings on the blast, And breathed in the face of the foe as he passed...
Страница 257 - As tho' to breathe were life ! Life piled on life Were all too little, and of one to me Little remains ; but every hour is saved From that eternal silence, something more, A bringer of new things : and vile it were For some three suns to store .and hoard myself, And this gray spirit yearning in desire To follow knowledge like a sinking star, Beyond the utmost bound of human thought.
Страница 267 - Mysterious Night! when our first parent knew Thee from report divine and heard thy name, Did he not tremble for this lovely frame, This glorious canopy of light and blue ? Yet 'neath a curtain of translucent dew Bathed in the rays of the great setting flame Hesperus with the host of Heaven came And, lo ! creation widened in man's view.
Страница 181 - So good, so noble, and so true a master ? Bear witness, all that have not hearts of iron, With what a sorrow Cromwell leaves his lord. The king shall have my service ; but my prayers For ever and for ever shall be yours.
Страница 316 - I know not, gentlemen, what you intend, Who else must be let blood, who else is rank : If I myself, there is no hour so fit As Caesar's death's hour ; nor no instrument Of half that worth as those your swords, made rich With the most noble blood of all this world.
Страница 326 - If you have tears, prepare to shed them now. You all do know this mantle : I remember The first time ever Caesar put it on ; 'Twas on a summer's evening, in his tent, That day he overcame the Nervii : Look, in this place ran Cassius...
Страница 324 - I speak not to disprove what Brutus spoke, But here I am to speak what I do know. You all did love him once, not without cause ; What cause withholds you, then, to mourn for him? 0 judgment, thou art fled to brutish beasts, And men have lost their reason...