Understanding the Elusive Nature of Mass: Can it Really be Destroyed?

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Mass cannot be destroyed, but the concept of matter is more complex. The invariant mass, related to the total 4-momentum, remains constant, while the sum of rest masses in a system can change. The discussion highlights the importance of defining terms like "mass" and "matter" clearly. The ability to create matter is also questioned, with implications depending on the definitions used. Understanding these nuances is essential for grasping the nature of mass and matter in physics.
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I have one question that can we destroy the mass does anyone have answer?
 
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I have one question in my mind and that is can humans create the matter and if answer is yes than how?
 
Welcome to PF!

Is this a homework question? Have you done any reading on it?
 
No I had question in my mind so I have ask it and I haven't read about it and I am new on this site so I don't know the answer.
 
Ravi4213 said:
can humans create the matter

It depends on what you mean by "create" and what you mean by "matter."
 
Ravi4213 said:
I have one question that can we destroy the mass does anyone have answer?

Mass cannot be destroyed. Matter, on the other hand, is a different story.
 
Drakkith said:
Mass cannot be destroyed.

We had this conversation recently (https://www.physicsforums.com/threads/can-a-massless-photon-create-mass.787079/). In the end it boils down to what you mean by "mass". If you mean the invariant mass (as in the square of the total 4-momentum) then it cannot be destroyed. If you mean the sum of the rest masses of all constituents of a system, then yes it can.
 
Orodruin said:
We had this conversation recently (https://www.physicsforums.com/threads/can-a-massless-photon-create-mass.787079/). In the end it boils down to what you mean by "mass". If you mean the invariant mass (as in the square of the total 4-momentum) then it cannot be destroyed. If you mean the sum of the rest masses of all constituents of a system, then yes it can.

Mass shouldn't be allowed to be so complicated. :D
 
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