• @_danny@lemmy.world
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      72 years ago

      How much water, by weight, is in an empty cup? Round to the nearest amount an average 17th century merchant could identify.

    • @BillyTheSkidMark@lemm.ee
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      62 years ago

      I guess in terms of an actual weightless object… Not… But if you have 2 equal weight items, call their combined weight 1 weight unit, take one away, that’s half a weight unit, take two away, that’s zero weight units.