The German-born American physicist (one who studies matter and energy and the relationships between them) Albert Einstein revolutionized the science of physics. He is best known for his theory of relativity, which holds that measurements of space and time vary according to conditions such as the state of motion of the observer. His Beginnings Albert Einstein was born on March 14, 1879 in Ulm, Germany. He was not talkative in his childhood, and until the age of three, he didn’t talk much. He spent his teenage years in Munich, where his family had an electric equipment business. As a teenager, he was interested in nature and showed a high level of ability in mathematics and physics.
The sky is the most mysterious part of our everyday experience. Familiarity may make the amazing events going on at ground level seem almost ordinary. Plants and animals grow and die, rain falls, rivers flow. We feel we understand that. But the sky is beyond comprehension. Two great objects travel through it, one hot and constant, the other cold and changeable. In the daytime it is moody; there may be blazing sun, or racing clouds, or darkness followed by thunder and lightning. And yet on a clear night the sky is the very opposite - predictable, if you look hard enough, with recognizable groups of stars moving in a slow but reliable manner.