The discoveries of scientists also help shape our views about ourselves and our place in the universe. Modern Science and technology have changed our lives in many dramatic ways. Airplanes, automobiles, communications, satellites, computers, plastics and television are only a few of the scientific and technological inventions that have transformed human life. Astronomy is the study of comets, meteors, galaxies, planets, stars and other objects in space. They study the structure, composition, size and history of the universe.
Geology investigates the composition, structure, and history of the earth.
Geologists analyze how such forces as earthquakes, volcanic eruptions, and wind or water erosion change the earth's surface. Economics examines how people produce goods and services, how goods and services are distributed and how they are used. Political science studies forms of government, political parties, pressure groups, elections and other aspects of politics. Psychology involves investigation of mental processes and behavior. Physiological psychologists study how the nerves and the brain work.