Nature, Volum 34Sir Norman Lockyer Macmillan Journals Limited, 1886 |
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acid ammonia appear Astronomical atmosphere Bagshot Beds birds body British carbon carbonic acid centimetre chemical cholera coal-tar Colonial colour Comet contains cork corresponding crater curve Decl deposits described determined didymium direction distance earthquakes electric eruption exhibited experiments fact feet flora formation gadolinite Geological give given Greenwich mean heat heliometer hydrochloric acid hydrogen inches Indian interesting iron Islands June Lake larvæ light lines liquid magnetic matter maximum means measured metal Meteorological method millimetre Minor Planet Museum nature object observations Observatory obtained oxygen paper Paris Observatory period phenomena photographs plants plates present pressure produced Prof recent referred region remarkable rocks Royal samarium samarskite scientific Society solar South South Wales species specimens spectra spectrum stars sulphur sunspot surface temperature theory Thomson effect tion tube vapour Variable Stars variations various velocity volcanic
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Side 43 - ... determines the mechanical work to be expended. To produce transparent ice, the water has to be agitated during freezing, so as to allow the air to escape. Various refrigerating media have been used, such as ether, sulphur dioxide, and anhydrous ammonia. The third is known as the absorption process : the principle employed is chemical or physical rather than mechanical, and depends on the fact that many vapours of low boiling-point are readily absorbed by water, but can be separated again by the...
Side 165 - At 4 am the Flying Dutchman crossed our bows. A strange red light as of a phantom ship all aglow, in the midst of which light the masts, spars and sails of a brig 200 yards distant stood out in strong relief as she came up on the port bow.
Side 105 - The inner parts of the country were not less savage and .horrible. The wild rocks raised their lofty summits till they were lost in the clouds, and the valleys lay covered with everlasting snow. Not a tree was to be seen, nor a shrub even big enough to make a toothpick. The only vegetation we met with was a coarse strong-bladed grass growing in tufts, wild burnet, and a plant like moss, which sprung from the rocks.
Side 248 - ... affect our earth. In each lunation, the moon's surface undergoes changes of temperature which should suffice to disintegrate large portions of her surface, and with time to crumble her loftiest mountains into shapeless heaps. In the long lunar night of fourteen days, a cold far exceeding the intensest ever produced in terrestrial experiments must exist over the whole of the unilluminated hemisphere...
Side 194 - The art of preserving health; that is, of obtaining the most perfect action of body and mind during as long a period as is consistent with the laws of life. In other words, it aims at rendering growth more perfect, decay less rapid, life more vigorous, death more remote.
Side 244 - Monthly and Yearly Means, Extremes, and Sums for the Years 1883, 1884, 1885," with an appendix on observations of clouds.
Side 10 - ... everything is green, as in April in Andalusia. The singing of the birds is such, that it seems as if one would never desire to depart hence. There are flocks of parrots...
Side 251 - The reduction of the latitudes of the spots is not yet completed. The result of these observations may be thus briefly stated. As we pass from minimum to maximum, the lines of the chemical elements gradually disappear from among those most widened, their places being taken by lines of which at present we have no terrestrial representatives. Or, to put the result another way — at the minimum period of sunspots when we know the solar atmosphere is quietest and coolest, vapours containing the lines...
Side 180 - It is this singular property which gives to cork its value as a means of closing the mouths of bottles. Its elasticity has not only a very considerable range, but it is very persistent. Thus in the better kind of corks used in bottling champagne and other effervescing wines you are all familiar with the extent to which the corks expand the instant they escape from the bottles.
Side 289 - The dynamics of the subject, so far as a single liquid is concerned, is absolutely comprised in the mathematics without symbols which I have put before you. Twenty pages covered with sextuple integrals could tell us no more. Hitherto we have only considered mutual attraction between the parts of two portions of one and the same liquid — water for instance. Consider, now, two different kinds of liquid : for instance, water and carbon disulphide (which, for brevity, I shall call sulphide). Deal with...