Elements of Meteorology: With Questions for Examination, Designed for Schools and AcademiesPratt, Woodford, 1848 - 240 pagina's |
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Overige edities - Alles bekijken
Elements of Meteorology: With Questions for Examination, Designed for ... John Brocklesby Volledige weergave - 1873 |
Elements of Meteorology: With Questions for Examination, Designed for ... John Brocklesby Volledige weergave - 1869 |
Elements of Meteorology with Questions for Examination: Designed for Schools ... John Brocklesby Volledige weergave - 1859 |
Veelvoorkomende woorden en zinsdelen
absolute humidity aerolites altitude anemometer anthelia appears arch arithmetical series ascending atmos atmosphere atmospheric electricity aurora barometer beheld body cause changes circles climes clouds coast cold colder color column condensation coronas degrees density descends diameter direction distance earth electricity electrometer elevation equator fall feet figure flash fogs fulgurite Give instances glass globe hail halo heat height hemisphere hour humidity hurricane hygrometer images inches increase instrument intervals Kaemtz latitude light luminous mercury meteorite Meteorology meteors miles miles per hour mirage mist moisture monsoon motion mountains northern northern hemisphere observations occur ocean origin pass Peru phenomena phenomenon phere portion prevail prismatic produced Prof rain rarefied rays refraction regions rises seen shower snow south-west storm stratum summit surface temperature thermometer thunder-storm tints tion tricity tropics tube vapor velocity vessel violet warm whirlwind wind
Populaire passages
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 the current...
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 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 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 i - No natural science is more instructive, more attractive, and more practically useful, than Meteorology, treated as you have treated it, where the philosophical explanations of the various phenomena of the atmosphere are founded upon an extensive induction of facts. This science is more particularly interesting to the young, because it explains so many things, that are daily occurring around them, and it thus inspires a taste for philosophical reasoning.
Pagina 232 - I witnessed this phenomenon by myself, I should have been disposed to receive with caution the evidence even of my own senses, as to this last fact; but the appearance conveying precisely the same idea to three...
Pagina 158 - ... transmission of the congressional intelligence from Washington to Philadelphia, and thence to New York, the apparatus began to work irregularly. The operator at each end of the line announced at the same time a storm at Washington, and another at Jersey City. The portion of the circuit of the telegraph which entered the building, and was connected with one pole of the galvanic battery, happened to pass within the distance of less than an inch of the wire which served to form the connection of...
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 158 - ... one of the storms arrived so near Philadelphia that the lightning could be seen, each series of sparks was found to be simultaneous with a flash in the heavens. Now we cannot suppose, for a moment, that the wire was actually struck at the time each flash took place ; and indeed it was observed that the sparks were produced when the cloud and flash were at the distance of several miles to the east of the line of the wire. The inevitable conclusion is, that all the exhibition of electrical phenomena...
Pagina 153 - ... effect was produced upon the gold leaves. Having given up the trial of further experiments upon it, I took a book, and occupied myself with reading, leaving by chance the receiving ball at upward of an inch distance from the ball in the atmospheric conductor.