Dictionary of the Mathematical and Physical Sciences, According to the Latest Improvements and DiscoveriesJames Mitchell |
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Page 15
... feet from the place of its ascent , with the animals in perfect safety . -As the great powers of those aerostatic machines , and their very gradual descent , showed they were capable of transporting people through the air with all ...
... feet from the place of its ascent , with the animals in perfect safety . -As the great powers of those aerostatic machines , and their very gradual descent , showed they were capable of transporting people through the air with all ...
Page 16
... feet below the He saw for a few seconds vapours lower part of the balloon ; and , in rising from the valleys and rivers . order to prevent the bursting of The clouds seemed to ascend from the machine , a valve was placed the earth , and ...
... feet below the He saw for a few seconds vapours lower part of the balloon ; and , in rising from the valleys and rivers . order to prevent the bursting of The clouds seemed to ascend from the machine , a valve was placed the earth , and ...
Page 17
... feet in diameter , and the power of the rarified air one was equivalent to about sixty pounds . They ascended without any acci- dent ; but had not been long in the atmosphere , when the machine took fire at the height of about three ...
... feet in diameter , and the power of the rarified air one was equivalent to about sixty pounds . They ascended without any acci- dent ; but had not been long in the atmosphere , when the machine took fire at the height of about three ...
Page 18
... feet high . In the year 1643 it occurred to Torricelli , the disciple of Galileo , that whatever might be the cause by which a column of water , thirty - four feet AFFIRMATIVE Sign , or sign of high , is sustained above its level ...
... feet high . In the year 1643 it occurred to Torricelli , the disciple of Galileo , that whatever might be the cause by which a column of water , thirty - four feet AFFIRMATIVE Sign , or sign of high , is sustained above its level ...
Page 28
... feet . For example , suppose IA 100 feet , ID = 8 feet , and ED 4 feet , being the height of the staff ; 100 X 4 then BA = = 50 feet , 8 ALTITUDE of a Figure , is the distance of its vertex from its base , or the length of a ...
... feet . For example , suppose IA 100 feet , ID = 8 feet , and ED 4 feet , being the height of the staff ; 100 X 4 then BA = = 50 feet , 8 ALTITUDE of a Figure , is the distance of its vertex from its base , or the length of a ...
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Dictionary of the Mathematical and Physical Sciences: According to the ... James Mitchell No preview available - 2017 |
Dictionary of the Mathematical and Physical Sciences: According to the ... James Mitchell No preview available - 2017 |
Common terms and phrases
absciss Algebra altitude appears Arithmetic Astronomy axis body called centre circle co-efficients conic sections consequently cosine cube cubic equation curve cycloid cylinder degree denominator denote diameter distance diurnal motion divided divisor earth ecliptic ellipse equa equal equation feet figure fluid fluxion force formula fraction frustrum Geometry given glass gravity greater greatest heat Hence horizon hyperbola inches instrument latitude length less lever logarithm longitude means measure mercury meridian method moon motion multiplied object observed orbit ordinate parabola parallax parallel passing perihelion perpendicular plane poles produced proportion quantity radius ratio rays refraction right angles right ascension right line roots side sine solid space specific gravity sphere spherical square stars subtangent supposed surd surface tance tang tangent telescope tion triangle tube velocity weight whence wind
Popular passages
Page 440 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Page 508 - In higher works on trigonometry, it has been demonstrated that, in any triangle, the sines of the angles are proportional to the lengths of the sides opposite to them. In other words, sin A : sin B :: BC : AC; or, sin A : sin C:: BC : AB, and sin B : sin C::AC : A B. Hence, we have sin 44° 40' : sin 56° 20
Page 292 - A law presupposes an agent ; for it is only the mode, according to which an agent proceeds : it implies a power ; for it is the order, according to which that power acts. Without this agent, without this power, which are both distinct from itself, the law does nothing ; is nothing. The expression, ' the law of metallic nature...
Page 203 - ... winch, with as little labour as it takes to wind up a jack, though the weight of the iron, tin, and wooden circle, is about 1000 pounds.
Page 74 - In foul weather, when the mercury rises much and high, and so continues for two or three days before the foul weather is quite over, then expect a continuance of fair weather to follow.
Page 209 - Specific Gravity of a body is the relation of its weight, compared with the weight of some other body of the same magnitude. A body immersed in a fluid will sink if its specific gravity be greater than that of the fluid; but if it be less, the body will rise to the top, and will be only partly uncovered.
Page 476 - ... the object he views. There is no small speculum, but the magnifiers are applied immediately to the first focal image. From the opening of the telescope, near the place of the eye glass, a speaking-pipe runs down to the bottom of the tube, where it...
Page 398 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Page 459 - And in measuring any of these station-distances, mark accurately where these lines meet with any hedges, ditches, roads, lanes, paths, rivulets, &c ; and where any remarkable object is placed, by measuring its distance from the station-line ; and where a perpendicular From it cuts that line. And thus as you go along any main...
Page 11 - ... of the motion seemed to be from the upper part downwards. It appears also that they were in some danger of having the balloon burnt altogether; as the Marquis observed several round holes made by the fire in the lower part of it, which alarmed him considerably, and, indeed, not without reason.