... conditions predicted by relativity theory. In addition, general relativity has suggested various kinds of celestial phenomena that could exist, including neutron stars, black holes, gravitational lenses, and gravitational waves. According to relativistic theory, neutron stars would be small but extremely dense stellar bodies. A neutron star with ... pulses of radiation, are now taken to be rapidly spinning neutron stars, with the pulse period represent the period of rotation. Black holes are among the most exotic of the predictions of general relativity, although the concept itself date...

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• Approx Pages: 7
• Grade Level: Undergraduate

... model of general relativity, they were able to prove that time originated from a singularity at some point in the past, confirming one and for all that the universe began at the instance of the big bang. (Hawking, 41) Although many scientists still maintain that Max Plank's quantum ... theories of relativity, the numerous arguments presented in the paper as well as the results of Hawking's continuous work have set the precedent for researching the existence of distortions in the fabric of spacetime as the direct cause of the presence of force. Prior to 1915, space ... of the equation c...

• Word Count: 755
• Approx Pages: 3
• Grade Level: Undergraduate

... cluster/super cluster observations. The basic argument is that if we measure velocities in some region, then there has to be enough mass there for gravity to stop all the objects from flying apart. When such velocity measurements are done on large scales, it turns out that the amount ... the luminous mass. Hence we infer that there is non-luminous matter in the Universe, i.e. there is dark matter. Dark matter has important consequences for the evolution of the Universe. According to standard cosmological theory, the Universe must conform to one of three possible types: open, flat, or clo...

• Word Count: 798
• Approx Pages: 3
• Has Bibliography
• Grade Level: Undergraduate