An Introduction to Natural Philosophy: Illustrated with Copper Plates; by William Nicholson, Volume 2J. Johnson, 1787 - 364 pages |
Expressions et termes fréquents
alfo alkali alſo aqua regia atmoſphere barometer becauſe bodies boiling cafes calcined called calx caufe cauſe column combined condenfed conductor confequently confiderable confifts contains cryſtals cylinder degree denfity diffolved diftillation diminiſhed diſtance eafily earth elaſtic equal evaporation exhaufted falt fame feparated fhewn filk firſt fixed air fluid fmall folid foluble folution fome fpirit fpring ftate fteam ftrong fubftances fubject fuch fufficiently fuftain fulphur fuppofed furface glafs glaſs greater heat hydrometer immerfed inches increaſed inflammable inflammable air inftrument iron laft lefs leſs likewife logarithms mafs marine acid maſs meaſure mercury metals moft moſt motion Mufchenbroek muſt neceffary nitre nitrous acid obferved pafs particles phlogifton piſton preffed preffure procefs produced proportion purpoſe quantity quickfilver raiſed refiftance refpecting reprefent rife ſmall ſpace ſpecific gravity ſtate tartar temperature thefe thermometer theſe thofe thoſe tion tube ufually uſed valve veffel velocity vitriolic acid volatile alkali weight whofe wind
Fréquemment cités
Page 353 - ... in which there was a shed convenient for his purpose. But dreading the ridicule which too commonly attends unsuccessful attempts in science, he communicated his intended experiment to nobody but his son, who assisted him in raising the kite.
Page 352 - The Doctor, having published his method of verifying his hypothesis concerning the sameness of electricity with the matter of lightning, was waiting for the erection of a spire in Philadelphia to carry his views into execution, not imagining that a pointed rod of a moderate height could answer the purpose, when it occurred to him that by means of a common kite he could have better access to the regions of thunder than by any spire whatever.
Page 286 - ... full ; and let it be placed in the middle of the fire, where it muft be kept red hot for one hour at...
Page 59 - Africa and the meridian which passes through the western part of Japan ; but in the other months, October, November, December, January, February, and March, the winds in all the northern parts of the Indian Ocean shift round, and blow directly contrary to the course they held in the former six months.
Page 352 - ... was waiting for the erection of a spire in Philadelphia to carry his views into execution; not imagining that a pointed rod, of a moderate height, could answer the purpose; when it occurred to him that, by means of a common kite, he could have a readier and better access to the regions of thunder than by any spire whatever.
Page 250 - Ceruse), is made by rolling leaden plates spirally up, so as to leave the space of about an inch between each coil, and placing them vertically in earthen pots, at the bottom of which is some good vinegar. The pots are...
Page 63 - Couth ward, and a NE wind to the northward, of the equator, over which, in the upper regions of the air, the winds return in the contrary direction. This we accordingly fee happen in the months of October, November December, January, February, and March. 'But when the fun declines to the northward, and heats the land there...
Page 94 - A body immersed in a fluid ascends or descends with a force equal to the difference between its own weight and the weight of an equal bulk of fluid ; the resistance or viscosity of the fluid not being considered.
Page 353 - Struck with this promiling appearance, he immediately prefented his knucle to the key, and (let the reader judge of the exquifite pleafure he muft have felt at that moment) the difcovery was complete. He perceived a very evident electric fpark. Others fucceeded, even before the firing was wet...
Page 353 - ... thunder, than by any fpire whatever. Preparing therefore a large filk handkerchief, and two crofs flicks of a proper length, on which to extend it ; he took the opportunity of the firft approaching thunder-ftorm, to walk into a field in which there •was a fhed convenient for his purpofe. But, dreading the ridicule which too commonly attends unfuccefsful attempts in fcience, he communicated his intended experiment to nobody but his fon, who...