An immortal fumble by Androcles (Hexenmeister) (16-Apr-2006)
Partial Differential Equations Revisited Again!
| > > | https://home.deds.nl/~dvdm/dirk/Physics/Fumbles/PartialDiff2.html | > > | ... | > > | > > What is wrong with what I wrote ? | > | > > @t/@t' = @t'/@t implies t' = t+ k. (Just integrate...) | > | > Ok let's try t'=-t+k aka t=-t'+k : | > | > @t'/@t=-1 | > @t/@t'=-1 | > | > Hence t'=-t+k is a solution, which is not of the form t+k | | Just take | t' = g ( t - v x ) | x' = g (x - v t ) | and | t = g ( t' + v x' ) | x = g (x' + v t' ) | with | g = 1/sqrt(1-v^2) | and you get | @t'/@t = @t/@t' = g | | Dirk Vdm ahahahah... HAHAHAHA... hahaha! http://www.androcles01.pwp.blueyonder.co.uk/Dork/PartialDerivative.htm Thanks for the laugh, Dork. Androcles. |
|
| Fumble Index | Original post & context: njs0g.73560$8Q3.5653@fe1.news.blueyonder.co.uk |
|
See also |
|