Dictionary of the Mathematical and Physical Sciences, According to the Latest Improvements and DiscoveriesJames Mitchell Sir Richard Phillips, 1823 - 576 σελίδες |
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Σελίδα 12
... passing from a piece of ordnance ; they through it . are sometimes surrounded with a blaze or flame , tapering off to a narrow stream at the hinder part , are heard to explode , and seen to fly in pieces . The velocity with which they ...
... passing from a piece of ordnance ; they through it . are sometimes surrounded with a blaze or flame , tapering off to a narrow stream at the hinder part , are heard to explode , and seen to fly in pieces . The velocity with which they ...
Σελίδα 13
... passing through a va- cuum , or very attenuated medium , it would be possible for the caloric to escape , not to say that it might acquire a fresh accumulation of heat , by passing through the denser parts of our atmosphere . Add to ...
... passing through a va- cuum , or very attenuated medium , it would be possible for the caloric to escape , not to say that it might acquire a fresh accumulation of heat , by passing through the denser parts of our atmosphere . Add to ...
Σελίδα 28
... passing through every the first , we shall have the whole degree of the meridian ; and , hav - altitude of the tower BA : that is , ing the zenith for their common centre . They are the same as pa- rallels of altitude . ALTITUDE , in ...
... passing through every the first , we shall have the whole degree of the meridian ; and , hav - altitude of the tower BA : that is , ing the zenith for their common centre . They are the same as pa- rallels of altitude . ALTITUDE , in ...
Σελίδα 33
... passing the meridian : various modes of calculation have been recommend- ed at different times ; but we know of none preferable to the following , invented by Dr. Ritten- house , the American astronomer . Suppose there are four sets of ...
... passing the meridian : various modes of calculation have been recommend- ed at different times ; but we know of none preferable to the following , invented by Dr. Ritten- house , the American astronomer . Suppose there are four sets of ...
Σελίδα 43
... passing over equal spaces in equal times , may appear to be very unequal and irregular to the eye , which can only judge of them by the mutation of the angle at the eye . And motions , to be equally visible , or appear equal , must be ...
... passing over equal spaces in equal times , may appear to be very unequal and irregular to the eye , which can only judge of them by the mutation of the angle at the eye . And motions , to be equally visible , or appear equal , must be ...
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Dictionary of the Mathematical and Physical Sciences: According to the ... James Mitchell Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Dictionary of the Mathematical and Physical Sciences: According to the ... James Mitchell Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Συχνά εμφανιζόμενοι όροι και φράσεις
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
Δημοφιλή αποσπάσματα
Σελίδα 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.
Σελίδα 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
Σελίδα 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...
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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...
Σελίδα 398 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Σελίδα 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...
Σελίδα 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.