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Thread: What's heavier?

  1. #1
    Join Date
    Sep 2015
    Location
    Slovakia
    Posts
    282


    Default What's heavier?

    1 kilogram of iron or 1 kilogram feathers?

  2. #2


    Default

    On this video https://www.youtube.com/watch?v=yuOzZ7dnPNU is that 1 kg of steel has the same weight as 1 kg of feathers. But I don't know how is it with 1 kg of iron.

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