Nature, Količina 30

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Sir Norman Lockyer
Macmillan Journals Limited, 1884
 

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Stran 243 - And ye shall eat in plenty, and be satisfied, And praise the name of the Lord your God, that hath dealt wondrously with you : And my people shall never be ashamed.
Stran 28 - Fig. 9, the amount of heat produced is proportional to the resistance, and to the square of the current; or, to the EMF and the current.
Stran 158 - A glance is sufficient to show that neither apparent magnitude nor apparent proper motion can afford a definite criterion of the distance of any fixed star — that different stars really differ greatly in absolute brightness and in absolute motion. And now what is the work before us in the future ? The great cosmical problem that we have to solve is not so much what is the parallax of this or that particular star, but we have to solve the much broader questions — 1. What are the average parallaxes...
Stran 83 - STONE-WORKING MACHINERY. A Manual dealing with the Rapid and Economical Conversion of Stone. With Hints on the Arrangement and Management of Stone Works. By M. Powis BALE, MIME Second Edition, enlarged. Crown 8vo, cloth . . 9/O " The book should be In the hands of every mason or student of stonework.
Stran iii - Report on the Zoological Collections made in the Indo- Pacific Ocean during the voyage of HMS 'Alert,
Stran 114 - ... contributing to the maintenance of such classes. II That the managers and promoters of science and technical classes should (a) so arrange the emoluments of teachers as to encourage them to retain their students for the advanced stages of subjects in which they have passed the elementary stage, and (b) that they should endeavour to group the teaching of cognate science subjects, as recommended by the Royal Commission on the Advancement of Science, and as provided for by the regulations of the...
Stran 184 - I think, then, that we cannot escape from the reasons to believe that we lose in England and Wales every year, in consequence of sickness, 20,000,000 of weeks' work ; or, say, as much work as 20,000,000 of healthy people would do in a week. "The number is not easily grasped by the mind. It is equal to about onefortieth part of the work done in each year by- the whole population between fifteen and sixty-five years old. Or, try to think of it in money. Rather more than half of it is lost by those...
Stran 90 - Poiseulle's experiments, of the size of a hair, or whether it be the size of a water main or of the Mississippi, the only difference being that, in order that the motions may be compared, the velocities must be inversely as the size of the channels. This is not the only point explained. If we consider other fluids than water, some fluids like oil or treacle apparently flow more slowly and steadily than water; this, however, is only in smaller channels. The velocity at which sinuous motion commences...
Stran 309 - The book is divided into three parts, in the first of which the successive chapters treat of the following subVOL.
Stran 91 - ... walls of the cylinder. By means of two tubes temporarily attached, a stream of coloured water is introduced right across the cylinder extending from wall to wall ; the motion is very slow, and the taps being closed, and the tubes removed, the colour-band is practically stationary. The vessel is now caused to revolve about its axis. At first, only the walls of the cylinder move, but the colourband shows that the water gradually takes up the motion, the streak being wound off at the ends into a...

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