I am interested on the earliest reference on the deprecation of the concept of relativistic mass. AFAIR even Einstein used relativistic mass and the somehow related concepts of transversal and longitudinal force. I am trying to find a long lost article about showing all these concepts related and why the concept had to be deprecated. Cannot remember either author or journal. Thanks!(adsbygoogle = window.adsbygoogle || []).push({});

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# Looking for sources for deprecation of relativistic mass

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