Starting from the well-known light-clock thought experiment to derive time
dilation and length contraction, it is shown that finding the Lorentz
Transformation requires nothing more than the most trivial vector addition
formula. The form which is obtaine for the L.T. allows an easy derivation of
the velocity and acceleration transformations which are also given.Comment: Latex, 4 pages, 1 figure. Two first paragraphs rewritten. Error in
formula corrected. Various typo corrected. Example added (Should really be
V3. But V3 identical to V2 for some reason
