* Mr Archimedes’ Bath by Pamela Allen (1980) is a brilliant book. There’s very little text and it’s in a large font. That’s ok because the pictures tell the story. Mr Archimedes puts “just a little water in the bath, as he always did, and this time he measured the depth.” He’s wondering why water spills out of the tub when he and his animal companions climb in. When they all climb out of the tub, the water level drops. Each animal takes turns not joining the others in the tub, and yet, the water still rises. He finally figures out that they are the ones making the water level rise and fall. “The friends had so much fun that night, jumping in and out, making the water go up and down, that they made more mess than ever before.” This is the Arcimedes’ principle.
