Haruma brought a smile to her face. Father, what does this mean? She asked. He then explained that the potatoes, the eggs and coffee beans had each face the same adversity the boiling water. However, each one reacted differently. The potatoes went in stronghold and underlenting, but in boiling water it became soft and weak. The eggs were fragile, with the thin outer shell protecting its liquid interior until it was put in the boiling water. Then the inside of the egg became hard