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[–] 9 points 1 year ago (4 children)

What if you had eaten something that created a bunch of hydrogen gas (and lived somehow)? Wouldn't standing on a precision scale at sea level, in a sea level atmospheric pressure and composition, show you getting heavier as you expel the hydrogen.

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  • [–] 5 points 1 year ago* (3 children)

    I'm not sure it would, unless the person's volume also changes considerably.

    Buoyant force comes from a displaced volume of fluid (the outside air in this case)

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  • [–] 3 points 1 year ago (1 child)

    Well your guts and skin and other tissues do have some elasticity, I suppose it is possible that a large gas bubble might be able to expand your abdomen slightly.

    We're very much into spherical cows in a vacuum territory here. I don't think there's any way this would be realistically measurable,just fun to think about.

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