The Elements of Natural Or Experimental Philosophy, Volumen3
T. Cadell and W. Davies, 1803
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Términos y frases comunes
according acid acquire action alfo angle animal appear attraction bars battery becomes body called caloric charge circle coating cold colours combination communicated concave conductor confifts contains convex diameter direction diſtance effect electricity electrified equal experiments extremity fall fame farther fecond feems fhews fhock fide filver fingle fituated fixed fluid fmall focal focus fome former fubftances fuch furface glafs glaſs greater heat hence hole inches incident increaſe iron larger latter lefs lenfes length lens light lower magnet magnified manner means meaſure mercury metallic moſt muſt natural needle obferved object paffing parallel particular perfons piece Plate pofitive pole proceed produced proportion quantity rays receive reflected reflector refraction rendered ſmall teleſcope temperature thermometer thofe thoſe tion tube uſed various whole wire
Página 288 - When the rising sun shines from that point whence its incident ray forms an angle of about 45° on the sea of Reggio, and the bright surface of the water in the bay is not disturbed either by the wind or...
Página 293 - ... let this mixture be rammed into a crucible of about an inch and a half in depth, till it be almoft full ; and let it be placed in...
Página 289 - ... palms, and nearly down to the sea, the observer will behold the scene of the same objects not only reflected from the surface of the sea, but likewise in the air, though not so distinct or well defined as the former objects from the sea.
Página 289 - Lastly, if the air be slightly hazy and opaque, and at the' same time dewy and adapted to form the Iris, then the abovementioned objects will appear only at the surface of the sea, as in the first case, but all vividly coloured or fringed witH red, green, blue, and other prismatic colours *. " As the day advances, the fairy scene gradually disappears.
Página 288 - Reggio, and the bright surface of the water in the bay is not disturbed either by the wind or the current, the spectator being placed on an eminence of the city, with his back to the sun, and his face to the sea ; on a sudden there appear in the water, as in a catoptric theatre, various multiplied objects, viz.
Página 410 - THE electric organs of the torpedo are placed on each side of the cranium and gills, reaching from thence to the semicircular cartilages of each great fin, and extending longitudinally from the anterior extremity of the animal to the transverse cartilage, which divides the thorax from the abdomen...
Página 207 - When the rings were examined by looking through the lenses in the opposite direction, the central spot appeared white, and, in other rings, red was opposite to blue, yellow to violet, and green to a compound of red and violet ; the colours formed by the transmitted and...
Página 146 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Página 513 - ... the attraction of their matter. There is an attraction exerted between the overcharged extremity of one magnetic body and the undercharged extremity of the other, on account of the attraction between that fluid and the matter of the body ; but, to explain the repulsion which takes place between their undercharged extremities, we...
Página 280 - ... the distance of the small circle, and also of the parallel lines from your eye; divide then the distance of the former by that of the latter, and you will have the magnifying power of the telescope required.