Elements of Meteorology: With Questions for Examination, Designed for Schools and AcademiesPratt, Oakley, 1859 - 268 pagine |
Dall'interno del libro
Risultati 1-5 di 58
Pagina 15
... direction , this pressure will be transmitted through the mercury , in the direction of the arrows , and acts at D , within the tube , against the mercurial column Db . This upward force will be resisted at D , by the weight of Db , and ...
... direction , this pressure will be transmitted through the mercury , in the direction of the arrows , and acts at D , within the tube , against the mercurial column Db . This upward force will be resisted at D , by the weight of Db , and ...
Pagina 25
... direction . 36. We thus perceive , what all observations have proved , that the upper regions of the atmosphere must be colder than the lower . It is not , however , to be for- gotten , that the rarefaction of the superior strata con ...
... direction . 36. We thus perceive , what all observations have proved , that the upper regions of the atmosphere must be colder than the lower . It is not , however , to be for- gotten , that the rarefaction of the superior strata con ...
Pagina 29
... direction of the Regents of the University , is as follows : Mark the temperature , first , between daylight and sunrise ; secondly , between 2 and 4 , P. M .; thirdly , an hour after sunset : add together the first observation , twice ...
... direction of the Regents of the University , is as follows : Mark the temperature , first , between daylight and sunrise ; secondly , between 2 and 4 , P. M .; thirdly , an hour after sunset : add together the first observation , twice ...
Pagina 38
... direction is reversed . 78. On account of the unequal distribution of heat What does part second treat of ? What does chapter first treat of ? Define wind . When does it occur ? If two contiguous columns of air are unequally heated ...
... direction is reversed . 78. On account of the unequal distribution of heat What does part second treat of ? What does chapter first treat of ? Define wind . When does it occur ? If two contiguous columns of air are unequally heated ...
Pagina 40
... directions . If the pressure - plate acts freely upon spiral springs , the power of the wind is denoted by the extent of their compression , and that weight will be a measure of its force , which produces the same effect upon the ...
... directions . If the pressure - plate acts freely upon spiral springs , the power of the wind is denoted by the extent of their compression , and that weight will be a measure of its force , which produces the same effect upon the ...
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Altre edizioni - Visualizza tutto
Elements of Meteorology: With Questions for Examination, Designed for ... John Brocklesby Visualizzazione completa - 1873 |
Elements of Meteorology: With Questions for Examination, Designed for ... John Brocklesby Visualizzazione completa - 1869 |
Elements of Meteorology with Questions for Examination: Designed for Schools ... John Brocklesby Visualizzazione completa - 1859 |
Parole e frasi comuni
altitude appear arch atmos atmosphere atmospheric electricity aurora beheld Bequerel body cause cirro-cumulus cirro-stratus cirrus climes clouds coast cold colder color condensation conductor cumulus currents dense descend Describe diameter direction distance dust earth electricity electrified electrometer ELMO'S FIRE Explain fall feet fell figure flash fogs fulgurite Garuas Give instances glass globe hail hailstorms heat height humidity hurricane images inches infusoria intensity John Herschel Kaemtz latitude light masses meteorite meteors miles minutes mirage mist moisture monsoon mountains night northern northern hemisphere o'clock observed occur ocean origin pass Peru phenomena phenomenon phere prismatic produced Prof rain rainbow Ramsgate rays red snow refracted regions rise seen shower Sirocco snow storm stratum summit supposed surface temperature thunder thunder-cloud thunder-storm tint tion trade wind tricity tropics vapor velocity vessel violet warm whirlwind wind wire Yale College
Brani popolari
Pagina 179 - 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...
Pagina 179 - ... numberless series of pilasters, arches, castles well delineated, regular columns, lofty towers, superb palaces, with balconies and windows, extended alleys of trees, delightful plains with herds and flocks, armies of men on foot and horseback, and many other strange images, in their natural colours and proper actions, passing rapidly in succession along the surface of the sea...
Pagina 86 - They originate in the same causes as rain — the union of a cool body of air with one that is warm and humid ; when the precipitation of moisture is slight, fogs are produced ; when it is copious, rains are the result.
Pagina 187 - India probably arises from this cause. " A deep precipitous valley below us, at the bottom of which I had seen one or two miserable villages in the morning, bore in the evening a complete resemblance to a beautiful lake ; the vapour which played the part of water ascending nearly half way up the sides of the vale, and on its bright surface trees and rocks being distinctly reflected. I had not been long contemplating this phenomenon, before a sudden storm came on and dropped a curtain of clouds over...
Pagina 159 - The inevitable conclusion is, that all the exhibition of electrical phenomena witnessed during the afternoon, was purely the effect of induction, or the mere disturbance of the natural electricity of the wire at a distance, without any transfer of the fluid from the cloud to the apparatus. The discharge between the two portions of the wire continued for more than an hour, when the effect became so powerful, that the superintendent, alarmed for the safety of the building, connected the long wire with...
Pagina 75 - The best form consists of a cylindrical metal vessel furnished with a float ; the rain falling into the vessel raises the float, the stem of which is so graduated that the increase in depth can be very accurately measured.
Pagina 153 - I took a book, and occupied myself with reading, leaving by chance the receiving ball at upwards of an inch distance from the ball in the atmospheric conductor. About four o'clock in the afternoon, whilst I was still reading, I suddenly heard a very strong explosion between the two balls, and shortly after many more took place, until they became one uninterrupted stream of explosions, which died away and re-commenced with the opposite Electricity in equal violence. The stream of fire was too vivid...