Κοινόχρηστο ήχο

Reading Passage: The Compass and the Hidden World Albert Einstein was not a child prodigy who performed difficult math at age three. In fact, he was late to talk, which worried his parents. However, his mind was exceptionally observant. The turning point in his life occurred at age five when he was sick in bed. His father brought him a small pocket compass. As Albert held the device, he noticed a strange phenomenon. No matter how he rotated or shook the compass, the needle stayed fixed, poi