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ZerexTheCool t1_ja998ew wrote

Reply to comment by Ansuz07 in ELI5 how pounds can be converted to kg by cheeseunused

Even more to the point.

Every scale ONLY measures the force an object puts on the scale. No scale measures the mass independent to a force being exerted on it.

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PralineCrunch t1_ja9a4if wrote

Would be interesting to have a space-scale that measures mass by pushing on and then stopping it.

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Fred2718 t1_ja9dl7c wrote

That is exactly how "space scales" work. Astronauts get wobbled back and forth by the scale, which compares the force to the movement, and computes the mass.

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