What was pleasing for swaminathan to hear why

Seesaws are classic playground equipment for children. They are not only fun to play on but also provide an excellent opportunity to explore a type of simple machine designed to lift objects much heavier than our strength would normally allow A seesaw is a specific type of lever; it consists of a long beam attached to a pivot called the fulcrum. As soon as we put weight on one end by sitting on one side of the beam it drops to the ground. This is because the force of gravity is acting on the weight of our body, pulling it and the beam down. How much weight is pulling down on the beam depends on our body mass.

to inform the reader that the text will take a second look at the grimms’ original tales