Please correct any errors in the following, as I speak
with only a little knowledge.
I had come to understand that ALL mass is
relativistic. The rest mass of the proton doesn't
come from the rest mass of its constituent quarks, but
from the energy binding them. I had understood that
this is true for most other particles we deal with.
I had thought of mass as a constant in equations like
F=ma, where mass represents a resistance to
acceleration. If moving objects have a higher
resistance to acceleration, it seems that they have a
higher mass. I think the iceberg story makes sense.
An object at a higher temperature has more mass than
the same object at a lower temperature.
Naively,
Zach
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