%0 Journal Article
%T Two Unnoticed Moments in Isaac Newton¡®s Scientific Work
%A Liubomiras Kulviecas
%J Evolution of Science and Technology
%D 2012
%I Vilnius Gediminas Technical University
%X The author points out two historical ¨C methodological aspects of Newton¡¯s scientific work which have not been analyzed yet.First, the author proves that the systematization of the concept of acceleration begins with I. Newton¡¯s works ¡°Gravia in Trochoide Descendentia¡± (ca. 1670) and PRINCIPIA but not, as the historians of mechanics have traditionally claimed, with lectures in physical mechanics by J. V. Poncelet in the years 1838¨C1848.Famous LEX II in I. Newton¡¯s PRINCIPIA can only be regarded as a true proposition if the Newtonian term ¡°vis motrix impressa¡± means not force itself, but rather the impulse of the force. If the above-named term is interpreted as the habitual physical force, LEX II is false as a physical proposition.Article in Lithuanian
%K fundamental concept of kinematics acceleration (acceleratio)
%K the basic law in dinamics
%K impulse of the force
%U http://www.est.vgtu.lt/index.php/est/article/view/est.2012.03