How to show from experience that the weight of a fluid displaced by a floating body is equal to the weight of the body in the air?
Water is poured into the casting vessel to the level of the side tube. After that, the floating body is immersed in the vessel, after weighing it in the air. Having descended into water, the body displaces a volume of water equal to the volume of the body part immersed in it. After weighing this water, it is found that the weight (Archimedean force) is equal to the force of gravity acting on the floating body, or the weight of this body in the air. Water is poured into the casting vessel to the level of the side tube. After that, the floating body is immersed in the vessel, after weighing it in the air. Having descended into water, the body displaces a volume of water equal to the volume of the body part immersed in it. After weighing this water, they find that the weight (Archimedean force) is equal to the force of gravity acting on the floating body, or the weight of this body in the air.
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