A History of Wonderful Inventions, Bind 1–2Harper & brothers, 1849 |
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Side 5
... round , and then suddenly and quickly withdraw their hands , when the two points of the needle face the north and the south . " An attempt has been made by Professor Hansteen to estab- lish the knowledge of the polarity of the magnet ...
... round , and then suddenly and quickly withdraw their hands , when the two points of the needle face the north and the south . " An attempt has been made by Professor Hansteen to estab- lish the knowledge of the polarity of the magnet ...
Side 11
... round , so as to direct the needle to the points opposite to those towards which it was naturally directed , it will , as soon as it is released from com- pulsion , again assume the position which it previously held . This at once ...
... round , so as to direct the needle to the points opposite to those towards which it was naturally directed , it will , as soon as it is released from com- pulsion , again assume the position which it previously held . This at once ...
Side 17
... round end of half an egg , which reflector is composed of highly - polished silver , coated and strengthened by copper . On the French and Dutch coasts the reflector is generally made of glass , formed so as to have circle after circle ...
... round end of half an egg , which reflector is composed of highly - polished silver , coated and strengthened by copper . On the French and Dutch coasts the reflector is generally made of glass , formed so as to have circle after circle ...
Side 29
... rounds were fired by the garrison , more than half of which consisted of red - hot balls . During this memorable siege , which lasted upwards of three years , the entire expenditure of the garrison exceeded 200,000 rounds , -8000 ...
... rounds were fired by the garrison , more than half of which consisted of red - hot balls . During this memorable siege , which lasted upwards of three years , the entire expenditure of the garrison exceeded 200,000 rounds , -8000 ...
Side 34
The sieves are formed of parchment skins , which have round holes punched in them , and within the sieves the piece of lignum vitæ is made to revolve till it has forced all the powder through the apertures , and grains of several sizes ...
The sieves are formed of parchment skins , which have round holes punched in them , and within the sieves the piece of lignum vitæ is made to revolve till it has forced all the powder through the apertures , and grains of several sizes ...
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Almindelige termer og sætninger
afterwards Anthemius appears application Arkwright ascertain atmosphere ball beautiful became boat boiler brought called century clock coal colours common compass condenser construction contrived convex cotton cylinder Dalswinton direction discovered discovery distance earth EDDYSTONE LIGHTHOUSE effect electric telegraph employed engaged engine England EVANGELISTA TORRICELLI experiments feet fire force formed four Galileo gasometer glass gunpowder Guttenberg hand heat Hero of Alexandria Holyhead horse hour hundred immense improvement inches instrument invention inventor iron Julius Cæsar labour length lens lenses letters light London machine magnetic Marquis of Worcester means mercury Messrs microscope miles moved needle object observed obtained opened pass patent philosopher piece pipe piston placed present principle printing produced purpose railway reflecting telescope rendered rollers round ship side Soho Foundry steam steam-engine surface telegraph telescope thermometer thousand threads tion tons tube turned upwards vessel warp Watt weft weight wheel wire yarn
Populære passager
Side 20 - Out of the bowels of the harmless earth, Which many a good tall fellow had destroy'd So cowardly ; and, but for these vile guns, He would himself have been a soldier.
Side 106 - Achromatic Lenses. The color effect caused by the chromatic aberration of a simple lens greatly impairs its usefulness.
Side 12 - ... which is but at such a distance. But this way hath no bounder, if the vessels be strong enough ; for I have taken a piece of a whole cannon, whereof the end was burst, and filled it...
Side 48 - There was exhibited on it a negro, a shepherd, and a dog. When the clock struck, the shepherd played six tunes on his flute, and the dog approached and fawned upon him. This clock was exhibited to the king of Spain, who was greatly delighted with it. " The gentleness of my dog," said Droz,
Side 12 - An admirable and most forcible way to drive up water by fire, not by drawing or sucking it upwards, for that must be as the philosopher calleth it, infra spheeram activitatis, which is but at such a distance. But this way hath no bounder, if the vessels be strong enough...
Side 54 - Faust was so pleased with the contrivance, that he promised Peter to give him his only daughter Christina in marriage, a promise which he soon after performed. But there were as many difficulties at first with these letters, as there had been before with...
Side 77 - As I had occasion to pass daily to and from the building-yard while my boat was in progress, I have often loitered unknown near the idle groups of strangers, gathering in little circles, and heard various inquiries as to the object of this new vehicle. The language was uniformly that of scorn, or sneer, or ridicule. The loud laugh often rose at my expense ; the ' dry jest ; the wise calculations of losses and expenditures ; the dull but endless repetition of the Fulton Folly.
Side 12 - I have seen the water run like a constant fountain stream, forty feet high ; one vessel of water, rarified by fire, driveth up forty of cold water. And a man that tends the work is but to turn two cocks, that one vessel of water being consumed, another begins to force and refill with cold water, and so successively, the fire being tended and kept constant, which the self-same person may likewise abundantly perform in the interim, between the necessity of turning the said cocks.
Side 93 - The manner of the carriage is, by laying rails of timber from the colliery to the river, exactly straight and parallel ; and bulky carts are made with four rollers fitting those rails, whereby the carriage is so easy that one horse will draw down four or five chaldron of coals, and is an immense benefit to the coal merchants.
Side 78 - The man who, while he looked on the expensive machine. thanked his stars that he had more wisdom than to waste his money on such idle schemes, changed the expression of his features as the boat moved from the wharf and gained her speed; his complacent smile gradually stiffened into an expression of wonder.