Annual Report of the Board of Regents of the Smithsonian Institution |
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Página 346
... spiral to 48 per cent .; now , the maximum effect of the secondary spiral
produces only a reduction to 78 per cent . of the temperature , which would have
been observed either without the secondary spiral or by one perfectly closed .
This is ...
... spiral to 48 per cent .; now , the maximum effect of the secondary spiral
produces only a reduction to 78 per cent . of the temperature , which would have
been observed either without the secondary spiral or by one perfectly closed .
This is ...
Página 390
... way the reactions can be produced almost exactly in the same form as with a
point emitting electricity . For this purpose a bottle of the capacity of several
quarts is filled with air containing ozone , and closed with 390 RECENT
PROGRESS IN ...
... way the reactions can be produced almost exactly in the same form as with a
point emitting electricity . For this purpose a bottle of the capacity of several
quarts is filled with air containing ozone , and closed with 390 RECENT
PROGRESS IN ...
Página 395
The temperature of the air being 16 ° R , the spirit of wine was cooled by means
of ice down to 7o and poured into the jar ; the circuit was closed and the needle
by means of the rheostat constantly kept at 35 ° ; next , with a watch marking ...
The temperature of the air being 16 ° R , the spirit of wine was cooled by means
of ice down to 7o and poured into the jar ; the circuit was closed and the needle
by means of the rheostat constantly kept at 35 ° ; next , with a watch marking ...
Página 410
Magazine , XXXV , 114 ; Pog . Ann . LXXVIII , 366. ) Two glass tubes , A and Fig .
50 . B , fig . 50 , 1.5 inch in length and 0.3 inch interior diameter , were closed at
both ends with corks , which were penetrated by copper wires , connected inside
...
Magazine , XXXV , 114 ; Pog . Ann . LXXVIII , 366. ) Two glass tubes , A and Fig .
50 . B , fig . 50 , 1.5 inch in length and 0.3 inch interior diameter , were closed at
both ends with corks , which were penetrated by copper wires , connected inside
...
Página 414
Grove now endeavored to produce the decomposition of aqueous vapor in such
a manner that the red hot platinum wire could only come in contact with the vapor
. A glass tube , as in fig . 54 , which at its closed end had a curved platinum Fig .
Grove now endeavored to produce the decomposition of aqueous vapor in such
a manner that the red hot platinum wire could only come in contact with the vapor
. A glass tube , as in fig . 54 , which at its closed end had a curved platinum Fig .
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Pasajes populares
Página 9 - The emphasis upon publications as a means of diffusing knowledge was expressed by the first Secretary of the Smithsonian Institution. In his formal plan for the Institution, Joseph Henry articulated a program that included the following statement: "It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge not strictly professional.
Página 7 - I mean stock to remain in this country, to the United States of America, to found at Washington, under the name of the Smithsonian Institution, an establishment for the increase and diffusion of knowledge among men.
Página 12 - January, 1847, requiring an equal division of the income between the active operations and the museum and library, when the buildings are completed, be and it is hereby repealed.
Página 8 - It is proposed — 1. To stimulate men of talent to make original researches, by offering suitable rewards for memoirs containing new truths; and, 2. To appropriate annually a portion of the income for particular researches, under the direction of suitable persons. To DIFFUSE KNOWLEDGE. It is proposed — 1. To publish a series of periodical reports on the progress of the different branches of knowledge; and, 2 To publish occasionally separate treatises on subjects of general interest.
Página 12 - Art-Union and other similar societies. 12. A small appropriation should annually be made for models of antiquities, such as those of the remains of ancient temples, &c. 13. For the present, or until the building is fully completed, besides the Secretary, no permanent assistant will be required, except one, to act as librarian. 14. The Secretary, by the law of Congress, is alone responsible to the Regents.
Página 10 - ... Agriculture. 4. Application of science to arts. II. MORAL AND POLITICAL CLASS. 5. .Ethnology, including particular history, comparative philology, antiquities, &c. 6. Statistics and political economy. 7. Mental and moral philosophy. 8. A survey of the political events of the world, penal reform, &c. HI. LITERATURE AND THE FINE ARTS. 9. Modern literature. 10. The fine arts, and their application to the useful arts. 11. Bibliography. 12. Obituary notices of distinguished individuals.
Página 26 - We are indebted to the National Telegraph Line for a series of observations from New Orleans to New York and as far westward as Cincinnati, which have been published in the Evening Star of this city.
Página 11 - To carry out the plan before described, a library will be required, consisting, 1st, of a complete collection of the transactions and proceedings of all the learned societies in the world ; 2d, of the more important current periodical publications, and other works necessary in preparing the periodical reports.
Página 8 - ... be considered, but also the continual expense of keeping it in repair, and of the support of the establishment necessarily connected with it. There should also be but few individuals permanently supported by the Institution. 12. The plan and dimensions of the building should be determined by the plan of organization, and not the converse. 13. It should be recollected that mankind in general are to be benefited by the bequest, and that, therefore, all unnecessary expenditure on local objects would...
Página 96 - In this room, and extending around the same, was a circuit of wire stretched along the wall, and at one termination of this, in the recess of a window, a bell was fixed, while the other extremity was connected with a galvanic apparatus. You showed us the manner in which the bell could be made to ring by a current of electricity, transmitted through this wire, and you remarked that this method might be adopted for giving signals, by the ringing of a bell at the distance of many miles from the point...