http://en.wikipedia.org/wiki/Hendrik_Lorentz
http://www.profburgwijk.nl/PBW/Wijk/Straatnamen/Lorentz.aspx
_ Understanding Special Relativity: The Lorentz
http://www.youtube.com/watch?v=KBkaMVOggeM
_ 13. Lorentz Transformation
http://www.youtube.com/watch?v=202fU9qIVK4