LoganW

**__Theory of Relativity__  Albert Einstein's Theory of Relativity had an everlasting impact on the gravitational force of universes in space, cosmology (collapsed stars), and opened the door for the Big Bang Theory. **

__** Impacts on the Gravitational Universe in Space ** __
 * "General relativity proposed that gravity, as well as motion, can affect the intervals of time and of space."
 * "Gravity pulling in one direction is completely equivalent to an acceleration in the opposite direction."
 * "If gravity is equivalent to acceleration, and if motion affects measurements of time and space (as shown in special relativity), then it follows that gravity does so as well."
 * "Bending of starlight by gravity and a tiny shift in the orbit of the planet Mercury, have been quantitatively confirmed by experiment. Two of the strangest predictions, impossible ever to completely confirm, are the existence of black holes and the effect of gravity on the universe as a whole (cosmology)."

__**Einstein's Theory of Relativity**__ >> >> >> >> >> >> >> >> >> >> **__Big Bang Theory__** __** Conclusion **__
 * __Collapsed Stars (Cosmology)__**
 * "A black hole is a region of space whose attractive gravitational force is so intense that no matter, light, or communication of any kind can escape."
 * " It is believed that black holes form from the collapse of stars. As long as they are emitting heat and light into space, stars are able to support themselves against their own inward gravity with the outward pressure generated by heat from nuclear reactions in their deep interiors. "
 * "Every star, however, must eventually exhaust its nuclear fuel. When it does so, its unbalanced self-gravitational attraction causes it to collapse. According to theory, if a burned-out star has a mass larger than about three times the mass of our sun, no amount of additional pressure can stave off total gravitational collapse. The star collapses to form a black hole. For a nonrotating collapsed star, the size of the resulting black hole is proportional to the mass of the parent star; a black hole with a mass three times that of our sun would have a diameter of about 10 miles."
 * **__"Ironically, Einstein himself did not believe in the existence of black holes, even though they were predicted by his theory."__**
 * "Beginning in 1917, Einstein and others applied general relativity to the structure and evolution of the universe as a whole. The leading cosmological theory, called the big bang theory, was formulated in 1922 by the Russian mathematician and meteorologist Alexander Friedmann. Friedmann began with Einstein's equations of general relativity and found a solution to those equations in which the universe began in a state of extremely high density and temperature (the so-called big bang) and then expanded in time, thinning out and cooling as it did so. One of the most stunning successes of the big bang theory is the prediction that the universe is approximately 10 billion years old, a result obtained from the rate at which distant galaxies are flying away from each other. This prediction accords with the age of the universe as obtained from very local methods, such as the dating of radioactive rocks on Earth."
 * " According to the big bang theory, the universe may keep expanding forever, if its inward gravity is not sufficiently strong to counterbalance the outward motion of galaxies, or it may reach a maximum point of expansion and then start collapsing, growing denser and denser, gradually disrupting galaxies, stars, planets, people, and eventually even individual atoms. Which of these two fates awaits our universe can be determined by measuring the density of matter versus the rate of expansion. Much of modern cosmology, including the construction of giant new telescopes such as the new Keck telescope in Hawaii, has been an attempt to measure these two numbers with better and better accuracy. With the present accuracy of measurement, the numbers suggest that our universe will keep expanding forever, growing colder and colder, thinner and thinner."

A true work of a genius. Albert Einstein discovered that Time and Space bend when acted on by a stronger gravitational pull than the earths. Einstein impacted the world forever. Scientists spend their lives studying Einstein's marvelous work and many are still trying to fathom his theory. Relativity proves itself time and time again. Albert Einstein and his Theory of Relativity had an everlasting impact on the gravitational force of universes in space, cosmology (collapsed stars), and opened the door for the Big Bang Theory.



__**Citations:**__ [|www.pbs.org/wghb/nova/einstein/relativity/] - i chose this site for all of my notes and infromation because it is an easy read and shows all of the necessary information for a better understanding of the material.

By clicking on each of my pictures you will find links to each of the sites. i chose these pictures because each one of them shows exactly what my information is talking about. They also give clear pictures of Einstein himself.