Editing Speed (section)

==Psychology==
According to [[Jean Piaget]], the intuition for the notion of speed in humans precedes that of duration, and is based on the notion of outdistancing.<ref>Jean Piaget, ''Psychology and Epistemology: Towards a Theory of Knowledge'', The Viking Press, pp. 82–83 and pp. 110–112, 1973. [[SBN (code)|SBN]] 670-00362-x</ref> Piaget studied this subject inspired by a question asked to him in 1928 by [[Albert Einstein]]: "In what order do children acquire the concepts of time and speed?"<ref>{{Cite journal|last1=Siegler|first1=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=en|volume=15|issue=3|pages=288–298|doi=10.1037/0012-1649.15.3.288}}</ref> Children's early concept of speed is based on "overtaking", taking only temporal and spatial orders into consideration, specifically: "A moving object is judged to be more rapid than another when at a given moment the first object is behind and a moment or so later ahead of the other object."<ref>{{cite book|title=Early Years Education: Histories and Traditions, Volume 1|url=https://books.google.com/books?id=VoKOEJTNxGEC&pg=PA164|year=2006|publisher=Taylor & Francis|page=164|isbn = 9780415326704}}</ref>