. . , - .
, , , . , , , . .
, . , 60-70 /. , .
. , "" , , , .
, , . , , - (. 20). , , , , .
. , . (. . , ) , , "" , .
Quot;" , , (. . , ) (. . , , ).
, . . , . ( ) (. 21). 1. , 2; 3. - 4, .
, . ?
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, F, , F', :
F' = F (12.1)
F' ( ) .
C . , , . mpVp , mV :
mpVp = mV,
,
. , , (. . ) ("") .
(12.2) . , . 1897 . . . .
, . 3 m, ( ) V = 4 /.
, , 4 (Vp=16 /), , ( ) ("") 55 (m0/m = 55). , . .
. . . . (1859-1935).
: http://school.xvatit.com/index.php?title=%D0%A0%D0%B5%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%BE%D0%B5_%D0%B4%D0%B2%D0%B8%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5