The Edinburgh Philosophical Journal, Volumul 4A. Constable & Company, 1821 Contains the proceedings of the Royal Society of Edinburgh, the Wernerian Natural History Society, etc. |
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Pagina 99
... plane triangle , by the principles of plane trigo- nometry we have Mm : Mn :: rad .: cos ZMN ; therefore , by equality , tan MZ : tan MN :: Mm : Mn . In the same man- ner , we have tan SZ : tan SN :: Ss : so . Now , Mn , and so , are ...
... plane triangle , by the principles of plane trigo- nometry we have Mm : Mn :: rad .: cos ZMN ; therefore , by equality , tan MZ : tan MN :: Mm : Mn . In the same man- ner , we have tan SZ : tan SN :: Ss : so . Now , Mn , and so , are ...
Pagina 123
... plane of the orbit . Each of the planets might thus give rise to a particular magnetic axis in the sun ; but as their orbits make only small angles with the sun's equator and each other , those magnetic axes would , per- haps , on the ...
... plane of the orbit . Each of the planets might thus give rise to a particular magnetic axis in the sun ; but as their orbits make only small angles with the sun's equator and each other , those magnetic axes would , per- haps , on the ...
Pagina 124
... planes parallel to any of its sides , and not in any other planes . It cleaves with a glossy polite surface not perfectly plane , its but with some little unevenness . It is easily 124 Account of Sir Isaac Newton's Investigations ...
... planes parallel to any of its sides , and not in any other planes . It cleaves with a glossy polite surface not perfectly plane , its but with some little unevenness . It is easily 124 Account of Sir Isaac Newton's Investigations ...
Pagina 125
... TX by an unusual refraction diverging from the perpen- dicular , and making with it an angle VTX of about 68 ° , as is found by experience . And hence , the plane VTX respecting Double Refraction and Polarisation . 125.
... TX by an unusual refraction diverging from the perpen- dicular , and making with it an angle VTX of about 68 ° , as is found by experience . And hence , the plane VTX respecting Double Refraction and Polarisation . 125.
Pagina 126
found by experience . And hence , the plane VTX , and such like planes which are parallel to the plane CFK , may be called the planes of perpendicular refraction . And the coast towards which the lines KL and VX are drawn , may be ...
found by experience . And hence , the plane VTX , and such like planes which are parallel to the plane CFK , may be called the planes of perpendicular refraction . And the coast towards which the lines KL and VX are drawn , may be ...
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Alte ediții - Afișează-le pe toate
The Edinburgh Philosophical Journal: Exhibiting a View of the ..., Volumul 5 Vizualizare completă - 1821 |
Termeni și expresii frecvente
Amarapura angle animal animalcules Apophyllite apparatus appears Arabs atmosphere axis basalt camels Cape Antonio Captain carbonic acid chert clay coast colour conjunction calculated containing crystal direction distance double refraction Dr Brewster earth east effect electricity Erawadi experiments feet felspar flame Flintshire fluid granite heat hills hive inches iron Irthington island isothermal isothermal lines journey land latitude light limestone magnesia magnetic manner mean temperature Melville Island miles mineralogy minerals month Morning mountains Mranmas natural history needle Noon observed oxygen parallel passing perpendicular phosphorescence piezometer plane plate pole position produced Puy de Dôme quantity rays remarkable river rocks Scott shew side species specific gravity stone summer summit supposed surface Temp tion trachyte tube uniting wire unusual refraction valley variation vegetable veins winter
Pasaje populare
Pagina 72 - Though I look old, yet I am strong and lusty: For in my youth I never did apply Hot and rebellious liquors in my blood; Nor did not with unbashful forehead woo The means of weakness and debility; Therefore my age is as a lusty winter, Frosty, but kindly: let me go with you; I'll do the service of a younger man In all your business and necessities.
Pagina 220 - I sought a resting-place, found one, and contrived to sit ; but when my weight bore on the body of an Egyptian, it crushed it like a band-box. I naturally had recourse to my hands to sustain my weight, but they found no better support ; so that I sunk altogether among the broken mummies, with a crash of bones, rags, and wooden cases, which raised such a dust as kept me motionless for a quarter of an hour, waiting till it subsided again.
Pagina 163 - The suddenness of the transition/ writes Wollaston, ' from perfect hearing to total want of perception, occasions a degree of surprise which renders an experiment of this kind with a series of small pipes, among several persons, rather amusing. It is curious to observe the change of feeling manifested by various individuals of the party in succession, as the sounds approach and pass the limits of their hearing. Those who enjoy a temporary triumph are often compelled...
Pagina 220 - ... me with horror. The blackness of the wall, the faint light given by the candles or torches for want of air, the different objects that surrounded me, seeming to converse with each other, and the Arabs with the candles or torches in their hands, naked and covered with dust, themselves resembling living mummies, absolutely formed a scene that cannot be described.
Pagina 113 - ... animalcules. Hence, reckoning sixty drops to a dram, there would be a number in a gallon of water exceeding, by onehalf, the...
Pagina 362 - Iron is rendered magnetical if scoured or filed, bent or twisted, when in the position of the magnetic axis, or near this position ; the upper end becoming a south pole, and the lower end a north pole...
Pagina 221 - It was* choked with mummies, and I could not pass without putting my face in contact with that of some decayed Egyptian ; but as the passage inclined downwards, my own weight helped me on: however, I could not avoid being covered with bones, legs, arms, and heads, rolling from above.
Pagina 129 - To explain the unusual refraction of island crystal by pression or motion propagated has not hitherto been attempted (to my knowledge) except by Huygens, who for that end supposed two several vibrating mediums within that crystal. But when he tried the refractions in two successive pieces of that crystal and found them such as is mentioned above, he confessed himself at a loss for explaining them.
Pagina 128 - Every ray of light has therefore two opposite sides originally endued with a property on which the unusual refraction depends, and the other two opposite sides not endued with that property.