Off Topic — HabitableZone

Off Topic » in reply to No need for regrets. Just defintion.

To clarify...

I'm not asking how mass is used in an equation to derive something else. I can plug numbers into a formula all day long and get correct answers.

People seem to somehow be confusing what I'm asking. I'm not asking "how do you do math." That I understand fine.

I'm asking not

"how is mass used in equations"

but

"What is mass in a physical sense? What is the structure of it, such that it causes an object which has it to resist acceleration?"

Simple enough? We don't need to debate psychology and the mind-language-concept-symbolism-math relationship. I'm just asking

"In real terms, how do we define mass?"

"What is the stuff of mass, and how is it structured to do what it does (resist acceleration)?"

Since we have the formula E=M(C^2) or M=E/(C^2), I assume that the answer lies in the equivalence between mass and energy.

I'm just looking for an explanation in real world terms of what specific structure or property resists acceleration, and how it does it? Both the what and the how seem integral to the understanding of the thing.

IE, is it as simple as kinetic enrgy being converted somehow into potential energy? If so, by what mechanism? If not, what other mechanism/property causes the resistance of an object to acceleration?

Why is this such a difficult question to answer? Just wondering...

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