/sci/ - Science & Math

>>11688810
Moar.

>>11688810
>>11688814
>>>/x/

>>11688810
Give me the tl;dr

>>11688818

>>11688936
OP confuses reality for observed reality.

>>11688810
Begin with
[eqn]c^2\tau^2=\xi^2+\eta^2+\zeta^2[/eqn]
The equation for spherically expanding light in system k.
Applying the Lorentz transformations,
[eqn]c^2\beta^2(t-\frac{vx}{c^2})^2=\beta^2(x-vt)^2+y^2+z^2[/eqn]
[eqn]c^2\beta^2(t^2-2\frac{vxt}{c^2}+\frac{v^2x^2}{c^4})=\beta^2(x^2-2vxt+v^2t^2)+y^2+z^2[/eqn]
[eqn]c^2\beta^2t^2+\beta^2\frac{v^2x^2}{c^2}=\beta^2x^2+\beta^2v^2t^2+y^2+z^2[/eqn]
[eqn]c^2t^2\beta^2(1-\frac{v^2}{c^2})=x^2\beta^2(1-\frac{v^2}{c^2})+y^2+z^2[/eqn]
[eqn]c^2t^2=x^2+y^2+z^2[/eqn]
We get the equation for spherically expanding light in system K. No fiddling around with parametric bullshit to try and confuse the reader. Just clean, simple derivation in a few lines.

>someone spent time to do this

>>11689225
>Applying the Lorentz transformations
The Lorentz is meaningless, so what's the point?

>>11689238
Its not like op has anything worth doing in his life as evidenced by the sheer number of garbage threads he spends all day samefagging in.