The 'Eureka' moment

Eureka moments may seem unpredictable and unreplicable. But there are ways to coax these inspired ideas from their hiding places. One of the best is to take a break from thinking about a problem or dilemma.

They are linked to the story of Archimedes and the gold crown ( when he realized while taking a bath that he can use displaced water to assess the density of the king's crown and, therefore, its gold content).