Essays on Black Hole

Introduction

A black hole is a region in space-time, the gravitational attraction which is so large that it can not leave even objects moving at the speed of light, including photons of light itself. The boundary of this region is called the event horizon, and its characteristic dimension - the gravitational radius. In the simplest case of a spherically symmetric black hole Schwarzschild radius is equal to it.
Theoretically, the possible existence of such regions of space-time should be of some exact solutions of Einstein's equations, the first of which was obtained by Karl Schwarzschild in 1915. The exact inventor

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Abstract

The study investigates different aspects of the Mirphak star. The Introductory section explains that the star occurs in the Perseus constellation and is the brightest star in the night sky above the Northern horizon. The paper has a section that describes the various names and myths linked to the star. Moreover, the paper traces a Greek’s mythical story that gave the constellation its name. Under the section on properties and position of the star, the study examines the changing coordinates of Mirphak. As a result, it outlines the star’s coordinates in J2000 and J1900. Other features examined

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Abstract

Ever since the understanding of the phenomenon of the Big Bang, scientists have put I all their energies to understand the functioning of all the objects that make our universe. While most of these objects can be seen and observed, Black Holes make for a mystery much difficult to discern. Nevertheless, after years of hard work and energy, scientists and astronomers have managed to establish certain facets of black holes. One of the most important discovery in this respect has been the relationship between Black Holes and the Galaxies. It has now become an established fact that most galaxies,

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Communication:

My topic of presentation was on the expansion of the universe. The center of my discussion was on the accelerating expansion of the universe and the cosmological implications particularly that at some point in the cosmological timescale, the better part of our universe will be unobservable to us. Our planet (or at least our galaxy since the planet would be long over) will be an isolated lonely place and boring with no cosmology to study. Due to the accelerating expansion, galaxies will at some point be moving apart at a speed possibly faster than that of light, this will

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No one has ever seen a black hole with their own eyes but everyone has heard about black holes. New technology for making telescopes has helped scientists learn more details about black holes but the principles of physics give us our basic understanding.
When a massive star dies the type of black hole formed is a stellar black hole. The star caves in on itself when it dies forming a black hole. (Figure 1) When a star with a huge mass dies, part of the start explodes into space – that is a supernova. The area of a black hole

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Black holes are space zones in the universe that are dark in nature and possess natural forces of attraction that have a very high gravity. This implies that they are able to attract and pull anything including light at a very high speed. This explains the origin of the name, Black hole. Several myths have been generated in many attempts to try and explain what a black hole is and Hollywood is at the forefront of it. Movies from Hollywood portray black holes as time physical entrances to tunnels that if one goes through, he can either move back

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