Differences
This shows you the differences between two versions of the page.
Next revision | Previous revision | ||
2015:scott_walter [2015/05/28 10:11] berislav created |
2015:scott_walter [2015/06/15 17:02] (current) berislav |
||
---|---|---|---|
Line 1: | Line 1: | ||
- | + | ======Radio telemetry and the birth of spacetime conventionalism====== | |
- | + | ||
- | ======TBA====== | + | |
[[http://henripoincarepapers.univ-lorraine.fr/walter/ |Scott A. Walter]] | [[http://henripoincarepapers.univ-lorraine.fr/walter/ |Scott A. Walter]] | ||
<fs 75%> | <fs 75%> | ||
- | \\ //LHSP-Archives Henri Poincaré, Université de Lorraine// | + | \\ //University of Lorraine and Henri-Poincaré Archives (CNRS)// |
</fs> | </fs> | ||
<blockquote>**Abstract** | <blockquote>**Abstract** | ||
- | $\dots$ | + | Albert Einstein's notion of light-sphere invariance (1905) became, in |
+ | the space of six years, a fundamental tenet of his theory of relativity. The notion was challenged by Henri Poincaré, for whom the | ||
+ | apparent form of a lightwave depended on frame velocity. Poincaré's view was in turn challenged (implicitly) by Minkowski's theory of spacetime, and also by advances in wireless radio communication technology. These revolutionary innovations in theory and practice led Poincaré in 1909 to revise his earlier view of space and time, and to devise and promote a new philosophy that I call spacetime conventionalism. According to Poincaré's argument (1912), scientists may freely choose between Galilei spacetime and Minkowski spacetime, as this choice is indifferent for observable phenomena. | ||
</blockquote> | </blockquote> | ||
---- | ---- | ||
<WRAP half column> | <WRAP half column> | ||
- | {{amazon>en:0470036656 noprice =0}} | + | {{amazon>en:3764371366 noprice =0}} |
</WRAP> | </WRAP> | ||
<WRAP half column> | <WRAP half column> | ||
- | {{amazon>en:1853128848 noprice =0}} | + | {{amazon>en:3050031433 noprice =0}} |
</WRAP> | </WRAP> | ||
- | <WRAP half column> | ||
- | {{amazon>en:1853129976 noprice =0}} | ||
- | </WRAP> | ||
- | <WRAP half column> | ||
- | {{amazon>en:1845646029 noprice =0}} | ||
- | </WRAP> |