'Ah-ha!' How do you often say this sentence? Is it the time when you have thought of something new, or suddenly blessed with a moment of inspiration?

Do you remember the example of Archimedes in the bath? The king asked him to prove that his crown was made of gold. He needed to be sure of the weight and density of the gold used in the crown. He had struggled for a long period and still couldn't figure out the method to do that. After another day without any useful ideas, he went to have a bath. When he was sinking into the bathtub, and noticing how his body had displaced water, he suddenly realized that the water displaced was the weight of the body that had displaced it and cried out "Eureka!"

He finally solved the problem and proved that the crown wasn't a hundred percent made of gold.

When a new idea is born, all of us are usually come out with an "ah-ha" moment. We cannot predict when we are going to have the new ideas, we simply don't know how we can have the ideas. We will need to consider about what Archimedes had done before he took the bath. How many different methods he had tried before he had realized that theory? Is it because he was relaxing in a bath that matters? How did his mind work which made him receptive to new ideas? The answers to these questions are complicated, yet by exploring them, we can learn more about creativity. During these 'ah-ha' moments, it is no doubt that your mind is completely powered up and probably working in another gear of the brain.