Does Special Relativity Affect Mass?

[The_Baron]

Is mass relative? does the faster you go change your mass? Because according to the Energy calculations E = ymc^2 at speed and mc^2 and since the speed of light is constant, does that mean that mass changes?

[Thread edited by a Mentor to remove personal speculation]

 

[phinds]

Is mass relative? does the faster you go change your mass? Because according to the Energy calculations E = ymc^2 at speed and mc^2 and since the speed of light is constant, does that mean that mass changes?

No. You are thinking of the LONG deprecated concept of "relativistic mass". You, right now as you read this, are traveling at very close to the speed of light (relative to a particle in the CERN accelerator). Did knowing that make you feel more massive?