SCIENTIFIC NEWS, 299 



SCIENTIFIC NEWS. 



Imperial Academy of Sciences at Peter/burgh, 



JL HE Vice Admiral TchKcbagofF, Minifter of the Marine Prize of the 

 department, has forwarded to the Academy a queflion on the ^"2*" '™^^''*^*^ 

 reliftance of fluids, and its application to naval architedure, 

 ^ for the folution of which that department will beftow a re- 

 ward of 1000 ducats of Holland, or 4G2/. 10i\ 



The academy being defirous of feconding the patriolic 

 views of the marine department, decided on the publication 

 of a program in the following lerms. 



Prize propofed by the department of the Marine, on the * 



Iftof/w/j/, 1804.. 



It is propofed, that of the two theories of the refinance of The fubjefl:, 

 fluids propofed and applied to naval architeaure by ^^^'^ G-'^lorZTo/tb^^^ 

 Juan, in his Examen Maritimef and by M. Romme, in his refiftance of 

 Art de la Marine, one or the other of them, for example, that"*^' 

 of Don Juan (hould be corre^ed and improved to fuch a 

 degree, as to afford refults that fliall differ from the refults of 

 experiment, by fo fmall a quantity, as may be pra^ically 

 neglected without fenfible error: — Or otherwife, if thefe or to eftabllft a 

 theories cannot be corrected, it is propofed, that a new theory "^"^ ^"^ory > 

 (hould be eftabliQied and ap^plied to naval architecture, which 

 fliall lead to conclufions of the fame degree of accuracy j — 

 Or otherwife, lafily, if it fliould be impoffible to eflablifli fuch or to deduce a 

 a theory, it is propofed, that from experiments at leaft, there g°™"^ '^°™ 

 fliould be deduced a formula refembling ihofe which have been 

 given by Meflfrs. Boffut and Prony ; and fuch that it fliall be 

 not only more conformable to experiments than thofe formulas, 

 but that it (hall lead as nearly as poUible to the conclufions 

 drawn from experiments, even -when the formule fliall be 

 applied to naval architeflure. 



For the fatisfactory folution of this problem the department 0"e thoufanj 

 of the marine has appointed a prize of 1000 Ducats of Holland, '^'''^^^' °' *^*'* 

 and has fixed a term of two years to be reckoned from the 

 date of this program. After the expiration of that term, no 

 memoirs addrelTed to the academy vyill be received on this 

 fubje6t, the time appointed being fufficient for thofe new 

 experiments which the folulions in queftion render indifpenfa- 



