Speed(s)
Abstract
Three simple distinct operational procedures are given for transforming the empirical notion of speed into a formal concept. While in the Galilean theory of space-time, the three quantities coincide with the customary velocity, they differ in the Einsteinian theory. In particular, it is shown that ''rapidity'' has a direct and natural physical meaning.
- Publication:
-
American Journal of Physics
- Pub Date:
- May 1980
- DOI:
- 10.1119/1.12093
- Bibcode:
- 1980AmJPh..48..345L
- Keywords:
-
- 03.20.+i;
- 03.30.+p;
- Special relativity