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Intelligence, 



AXD 



MISCELLANEOUS ARTICLES* 



LEARNED SOCIETIES. 



GERM AX Y. 



T, 



HE following queftion has been propofed as the fubject of 

 a prize by the Royal Society of Gottingen, to be anfwered 

 before the firft of November 1800. 



As it has been afcertained by numerous experiments that a 

 great quantity of vaporific (caloris vaporificij, or, as it li 

 called, latent heat, is carried off* by the fteam of water, boil- 

 ing in an open veffel, and foon difperfed, which, however, if 

 carefully collected through tubes and pipes properly difpofed, 

 might be of great utility in various purposes in economy 

 and manufactures, the Society embraces this opportunity of 

 requeuing mathematicians and philofophers to turn their at- 

 tention to this fubjec~f., and to endeavour, as far as poflible, 

 to eftablifh a more accurate theory than any yet given of the 

 motion of fteam. 



The Royal Society requires, therefore, I. An inveftigation, 

 both by experiment and calculation, of the laws, or at leaft 

 the general laws, of the fteam of boiling water pairing through 

 tubes of a certain length and fize ; the matter of the tubes 

 and the degree of heat of the furrounding medium being given, 

 as well as other data which it is not neceffary to mention to 

 thofe acquainted with the nature of this elaftic fluid. 



I [. When thefc laws are in fome meafure eftablifhed, to de- 

 duce from them what degree of heat can be communicated, 

 in a given time, by a given quantity of fteam thus conveyed 

 gh tubei, with given quantity of cold water, or water 

 of any given temperament. 



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