Symmetry in Lorentz transformation equations

[DEVARAKONDA VENKATA NARAYANA SARMA <narayana@HD1.DOT.NET.IN>]

In today's HINDU (a daily news paper of India) Prof.Alladi Ramakrishnan,
retired Founder-Director, MATSCIENCE, Madras, India has written about
a not so explicitly stated symmetry in the Lorentz transformation equations.

As we know
                                                 2
                x - vt                  t - vx/c
x' =      ----------    , t' =   ------------
                  K                         K
                    2 2
where K= SQRT( 1 - v/c ).

Devide the equation for x' with c and then set c=1 in the equations.

We have
                x' = (x -vt)/K and t' = (t - vx)/K

Here we have to note x and x' have dimensions of time and are numerically
equal to space intervals in units of magnitude c.

regards,

sarma.