I Does Special Relativity Affect Mass?

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Mass is not relative in the context of special relativity; the concept of "relativistic mass" has been largely abandoned. Instead, mass remains constant regardless of an object's speed. Energy calculations, such as E = ymc^2, indicate that while energy increases with speed, mass does not change. The speed of light is a constant, and all observers experience their own mass consistently. Therefore, traveling at high speeds does not make an object feel more massive.
The_Baron
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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]
 
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The_Baron said:
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?
 
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Thread 'Physical Interpretation of Frame Field'

Moderator's note: Spin-off from another thread due to topic change. In the second link referenced, there is a claim about a physical interpretation of frame field. Consider a family of observers whose worldlines fill a region of spacetime. Each of them carries a clock and a set of mutually orthogonal rulers. Each observer points in the (timelike) direction defined by its worldline's tangent at any given event along it. What about the rulers each of them carries ? My interpretation: each...
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