On Oct 13, 5:37 pm, "Dirk Van de moortel"
<dirkvandemoor...@hotspam.not> wrote:
> "Lord Androcles, Zeroth Earl of Medway" <LordAndroc...@October2012.org>
> wrote in messagenews:W0des.419372$uJ4.262890@fx18.am4
> 
>> Look,
>> sqrt(1-v^2/c^2) = sqrt( c^2/c^2 - v^2/c^2) because c^2/c^2 = 1
>> Now we have a common divisor, c^2, so
>> sqrt( c^2/c^2 - v^2/c^2) = sqrt( [c^2 - v^2] /c^2)
>> c^2-v^2 is the difference of two squares and equals (c+v)(c-v) so
>> sqrt(1-v^2/c^2) = sqrt( (c+v)* (c-v) / c^2)
>> but the addition c+v doesn’t exist because the velocity of light c
>> cannot be altered by composition with a velocity less than that of light,
>> so sqrt(1-v^2/c^2) = sqrt(c * c / c^2) = 1.
> 
> "The addition c+v does not exist, therefore v=0":
>    https://home.deds.nl/~dvdm/dirk/Physics/Fumbles/AdditionDoesNotExist.html
>
> !!! Ping Alen -- ... and note Androfart is even smarter than you are ;-)
> 
> Dirk Vdm

Why? He made a very good point because according to SR c + v =c as you
cannot add anything to c to increase it. So why can’t we change
reduction factor gamma?