- #71
liuxinhua
- 79
- 1
Now, we can sure: The invariant mass of a “Rigid body or Born rigid body" can’t keep constant when it is accelerated.
Any rigid body is bound systems.
The invariant mass of bound systems can’t keep constant when it is accelerated.
Wikipedia article may need to be modified.
https://en.wikipedia.org/wiki/Mass_in_special_relativity
proposed:
Conservation of invariant mass also requires the system to be enclosed so that no heat and radiation (and thus invariant mass) can escape. As in the example above, a physically enclosed or bound system does not need to be completely isolated from external forces for its mass to remain constant, because for bound systems these merely act to change the inertial frame of the system or the observer.Ibix said: ↑
That seems to me to be saying that the mass of a bound system can be constant even when not isolated from external forces, not that it must be constant even when not isolated.
Ibix think :
the (invariant) mass of a bound system can be constant even when not isolated from external forces.
I think it means: sure, not can.
Because if it is “can”,then, for any system , its invariant mass can be constant for some process.
So if it is “can”, they say this here “That seems to me to be saying that the mass of a bound system can be constant even when not isolated from external forces, not that it must be constant even when not isolated. ”has no means.
Any rigid body is bound systems.
The invariant mass of bound systems can’t keep constant when it is accelerated.
Wikipedia article may need to be modified.
https://en.wikipedia.org/wiki/Mass_in_special_relativity
proposed:
Conservation of invariant mass also requires the system to be enclosed so that no heat and radiation (and thus invariant mass) can escape. As in the example above, a physically enclosed or bound system does not need to be completely isolated from external forces for its mass to remain constant, because for bound systems these merely act to change the inertial frame of the system or the observer.Ibix said: ↑
That seems to me to be saying that the mass of a bound system can be constant even when not isolated from external forces, not that it must be constant even when not isolated.
Ibix think :
the (invariant) mass of a bound system can be constant even when not isolated from external forces.
I think it means: sure, not can.
Because if it is “can”,then, for any system , its invariant mass can be constant for some process.
So if it is “can”, they say this here “That seems to me to be saying that the mass of a bound system can be constant even when not isolated from external forces, not that it must be constant even when not isolated. ”has no means.