Annual Report of the Board of Regents of the Smithsonian InstitutionThe Institution, 1881 |
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Halaman 172
... surface is left than is required to balance the loss of heat , which in this climate is very variable . The offices require more heat , rela- tively , than the halls ; and if , after the building is warm throughout , steam were shut ...
... surface is left than is required to balance the loss of heat , which in this climate is very variable . The offices require more heat , rela- tively , than the halls ; and if , after the building is warm throughout , steam were shut ...
Halaman 173
... surface and resulting in the greatest attainable economy of fuel . The boilers are connected overhead by steam - pipes of 5 inches diame- ter from each , with stop - valves ; these lead into a drum of 12 inches di- ameter to which two 8 ...
... surface and resulting in the greatest attainable economy of fuel . The boilers are connected overhead by steam - pipes of 5 inches diame- ter from each , with stop - valves ; these lead into a drum of 12 inches di- ameter to which two 8 ...
Halaman 174
... surface , which give out the heat generated in the boilers . The efficiency of the heating apparatus , though ... surfaces . The observation is also most gratifying that there is hardly any dif ference between the temperature on the main ...
... surface , which give out the heat generated in the boilers . The efficiency of the heating apparatus , though ... surfaces . The observation is also most gratifying that there is hardly any dif ference between the temperature on the main ...
Halaman 193
... surfaces of such stars are covered in parts with a kind of crust or slag , which gives out less light than the remaining parts of the surface , which are glowing . Further , he sup- poses these stars to be rotating on their axes , and ...
... surfaces of such stars are covered in parts with a kind of crust or slag , which gives out less light than the remaining parts of the surface , which are glowing . Further , he sup- poses these stars to be rotating on their axes , and ...
Halaman 199
... surface , as evinced by the number and size of the spots and protuberances , and the nature of the corona , has been again shown . The corona in 1878 was far sim- pler in general character than those of 1869 and 1870. It was observed to ...
... surface , as evinced by the number and size of the spots and protuberances , and the nature of the corona , has been again shown . The corona in 1878 was far sim- pler in general character than those of 1869 and 1870. It was observed to ...
Istilah dan frasa umum
A. D. Vol ALVAN CLARK American Anthrop aperture aperture of objective archæology Astronomical Bode's Jahrbuch bright Capt catalogue Chronograph coast collection color comet Commission contains crew of schooner d'anthrop diameter Director distance double stars Equatorial instrument experiments F. R. S. Read feet fisheries France glass Grand Banks heat inches Indian investigation Journal lamp large number Latitude Library light London Longitude from Greenwich Longitude from Washington magnifying power magnitude makers mean Meridian circle method micrometer Monthly National Museum nebula observations Observatory obtained paper parallax Paris Phil Phys placed planet plates powers of eye-pieces Prof Professor proper motions Prussia published rays ring satellites Saturn schists schooner Science sidereal Smithson Smithsonian Institution Society species Specimens of fishes spectroscope surface SYNOPSIS telescope temperature tion Trans TROUGHTON & SIMMS tube United volume W. H. Dall WILLIAM HERSCHEL WRITINGS OF-Continued York
Bagian yang populer
Halaman 400 - All sheep and oxen : yea, and the beasts of the field ; The fowls of the air, and the fishes of the sea : and whatsoever walketh through the paths of the seas.
Halaman 403 - WINCHELL -PREADAMITES: or, A Demonstration of the Existence of Men before Adam ; together with a Study of their Condition, Antiquity, Racial Affinities, and Progressive Dispersion over the Earth. With Charts and other Illustrations. By ALEXANDER WINCHELL, LL. D., Prof- of Geology and Palaeontology in the University of Michigan ; Author of " Sketches of Creation,
Halaman 543 - They now are seen to resemble a luxuriant garden, which contains the greatest variety of productions, in different nourishing beds; and one advantage we may at least reap from it is, that we can, as it were, extend the range of our experience to an immense duration.
Halaman 209 - The photometer consists of a horizontal telescope pointing to the west, and having two objectives. By means of two prisms mounted in front of the telescope, the pole star is reflected into one object-glass, and the star to be measured into the other. The cones of light are made to coincide by a double-image prism, the extra images being cut off by an eye-stop. The star to be measured is thus seen in the same field with the pole star, with the same aperture and magnifying power.
Halaman 485 - Such a vessel filled with any number of perfect liquids, would be emptied in the same time — whatever their specific gravity. As at any given horizon, inertia is directly proportional to gravity, the heavier the liquid the greater would be the power required to move it; but the motive power would be in proportion to the pressure, or in other words to the weight, and therefore all perfect liquids should issue from the same orifice with the same velocity. To test this proposition, eight fluid ounces...
Halaman 140 - Fisheries required that the person to be appointed should be a civil officer of the Government, of proved scientific and practical acquaintance with the fishes of the coast, to serve without additional salary.
Halaman 141 - Man being one of the chief destroyers of fish, his influence upon their abundance nmst be studied. Fishery methods and apparatus must be examined and compared with those of other lands, that the use of those which threaten the destruction of useful fishes may be discouraged, and that those which are inefficient may be replaced by others more serviceable. Statistics of industry and trade must be secured for the use of Congress in making treaties or imposing tariffs, to show to producers the best markets,...
Halaman 150 - Institution, and for this purpose, and for the entire expense of the foundation and pedestal of the monument, the sum of fifteen thousand dollars is hereby appropriated out of any moneys in the Treasury not otherwise appropriated.
Halaman 147 - Colombia was, by reason of her own delay, to be placed in the "more advantageous" position of claiming not merely the compensation to be paid by the United States for the privilege of completing the canal, but also the...
Halaman 555 - ... it is most probably also inhabited, like the rest of the planets, by beings whose organs are adapted to the peculiar circumstances of that vast globe.