Lestresa: diferèntzias tra is versiones

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Segundu Jean Piaget, s'atuamentu de s'assuntu de lestresa in sos umanos pretzedet cussa de sa durada e si basat in s'assuntu de distantziadura.<ref>Jean Piaget, ''Psychology and Epistemology: Towards a Theory of Knowledge'', The Viking Press, pp. 82–83 and pp. 110–112, 1973. [//en.wikipedia.org/wiki/SBN_(code) SBN] 670-00362-x</ref> Piaget at istudiadu custu argumentu ispiradu dae una dimanda chi l'est istada posta in su 1928 de Albert Einstein: "In cale òrdine sos pipios achirint sos cuntzetos de tempus e lestresa?"<ref>{{Cite journal|last=Siegler|first=Robert S.|last2=Richards|first2=D. Dean|date=1979|title=Development of Time, Speed, and Distance Concepts|url=http://www.psy.cmu.edu/~siegler/1979-Siegler-Richards.pdf|journal=Developmental Psychology|language=English|volume=15|issue=3|pages=288–298|doi=10.1037/0012-1649.15.3.288|issn=}}</ref> Su cuntzetu initziale de lestresa de sos pipios est basadu in su "sorpassu", pighende in cunsideru solu sos òrdines temporales e ispatziales, in piessignu: "Un'ogetu in movimentu est giudicadu prus lestru de unu àteru cando in unu datu momentu su primu ogetu est dae segus e unu momentu o giosso de cue prus a in antis respetu a s'àteru ogetu. "
 
== ReferencesRiferimentos ==
 
* Richard P. Feynman, Robert B. Leighton, Matthew Sands. The Feynman Lectures on Physics, Volume I, Section 8-2. Addison-Wesley, Reading, Massachusetts (1963). ISBN{{ISBN|0-201-02116-1}}0-201-02116-1.