Essay Database

… of an object as a function of time. These graphs are the displacement-time, velocity-time, and acceleration-time graphs. Three types of graphs can be used to determine the motion of an object; a curved line graph, horizontal line graph, and…

… on March 14, 1879.As a kid he had trouble learning to speak. His parents thought that he might be mentally retarded. He was not smart in school. He suffered under the learning methods that they used in the schools of Germany at that time…

… energy released by changes in the nucleus (core) of atoms. The heat and light of the sun result from nuclear energy. Scientists and engineers have found many uses for this energy, including the production of electric energy and the explosion…

… advancement of science and technology. Space exploration is the most remarkable event in all science and technology because it has ever been a dream to people. In order to let people understand more things about space exploration, I will introduce…

… fields were not discovered until recently, the history of how they were discovered is quite interesting, and informative. 1.1 The Detection of Magnetic Fields We begin by giving an empirical history of the development of electromagnetic theory.…

… center of our solar system. Nine planets orbit around it in a circular pattern. Only Earth is known to support life. Earth is the third closest planet to the sun. The heat from the sun keeps Earth from freezing; it contributes to providing life with…

… Mercury is the closest planet to the sun. Mercury was named after the Roman God of Commerce and Thievery. It might have gotten its name because of the way it quickly appears and disappears from Earth's view. Mercury is the second smallest planet…

… To examine some of the factors affecting the motion of an object undergoing uniform circular motion, and then to determine the quantitative relationship between the variables of force, velocity and radius. APPARATUS Rubber bung…

… whether if and when it will end. Astronomers construct hypotheses calledn cosmological models that try to find the answer. There are two types of models: Big Bang and Steady State. However, through many observational evidences, the Big Bang theory…

… celestial bodies that revolve around the sun. In the comets approach to the sun, some of the ice in the comet turns into gas, thus creating a long luminous tail that streams behind the comet. Over the past 2,500 years, approximately 2,000 comets have…