However, it was shown by Lorentz ( 1904 ) and Joseph Larmor ( 1904 ) that when the contraction hypothesis is maintained and the complete Lorentz transformation is employed ( " i . e . " including the time transformation ), then the negative outcome can be explained.
12.
Abraham also noted ( like Lorentz in 1899 ) that this mass also depends on the direction and coined the names " Longitudinal " and " Transverse " Mass . In contrast to Lorentz, he didn't incorporate the Contraction Hypothesis into his theory, and therefore his mass terms differed from those of Lorentz.
