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The history of space exploration
The history of space exploration
Research on black holes
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Space has been mesmerizing humans since the beginning of time; from the fascinated star-gazing child to the great minds of Plato, Aristotle, and Galileo. Space contains countless mysteries. One of these mysteries is black holes. As far as information about space goes, scientists know a moderate amount of information about black holes. Scientists know how black holes are made, how they affect objects around them, and how to spot them in space. Firstly, there are different types of black holes: Astrophysical, Supermassive, Mathematical, and Physical. A Physical, or regular, black hole is then categorized by its three properties: mass, spin, and magnetic field. A black hole with no spin and no magnetic field is a Schwarzchild black hole. A black hole with spin but no magnetic field is a Reissner-Nordstrøm. Finally, a black hole with both spin and a magnetic field is a Kerr black hole. All regular black holes are formed when a star collapses into an object that is so compacted nothing can escape the force of gravity. Stars that are about five times the size of the sun are only capable of being black holes. If the star does not have enough gravitational force acting upon it, the star will just cool down into a white dwarf. A star is a balance between two forces, the inward pressure of gravity and the outward pressure of radiation. Once a star has converted all its energy from its element stockpiles it reaches the element of iron. Iron atoms cannot create energy when fused together. The star stops emitting radiation which causes the inward pressure of gravity to overcome the now nonexistent outward pressure of radiation. The star implodes and a black hole is formed. All black holes have two major components. The collapsed center of... ... middle of paper ... ...a black hole. In summary, there are three major types of black holes: the physical, the astrophysical, and the mathematical. Physical black holes are categorized into three classes: the Schwarzchild, the Reissner-Nordstrøm, and the Kerr. Schwarzchild black holes are black holes that do not rotate or have a magnetic field. Reissner-Nordstrøm black holes do rotate but do not have a magnetic field, and, finally, Kerr black holes do rotate and do have a magnetic field. Physical black holes are formed when a star that is at least five times the size of our Sun burns until it reaches the element iron. Then the star does not have enough outward pressure to prevent gravity from crushing it inward. The other type of black hole is the astrophysical black hole. Astrophysical black holes are somewhat theoretical but scientists are trying to link them to the physical world.
Starting with black holes, Khalili describes the creation of one. I found that a black hole is what remains when a massive star dies. Because stars are so massive and made out of gas, there is an intense gravitational field that is always trying to collapse the star. As the star dies, the nuclear fusion reactions stop because the fuel for these reactions gets burned up. At the same time, the star's gravity pulls material inward and compresses the core. As the core compresses, it heats up and eventually creates a supernova explosion in which the material and radiation blasts out into space. What remains is the highly compressed and extremely massive core. The core's gravity is so strong that even light cannot escape. This object is now a black hole and literally cannot be seen because of the absence of light. Because the core's gravity is so strong, the core sinks through the fabric of space-time, creating a hole in space-time. The core becomes the central part of the black hole called the singularity. The opening of the hole is called the event horizon. Khalili describes that there are two different kinds of black holes:
The whole idea of time and black holes has been questioning scientist and many common people for decades. Whether or not the theories provided make it physically possible to allow us to ever use any type of a black hole to an advantage? Technology over these past years has allowed us to learn more and more about what black holes are and what they can do. While also allowing ourselves to discover new possibilities that they might bring forth to greater innovations in our near future. But we can only imagine, through our knowledge and technology, what a black hole could do for us, due to all the dangers they bring forth.
The origins of the super-massive black holes which concludes how they were formed and what caused them to form is an unsolved problem which is yet a mystery of astrophysics. ( Millis 2014)
The idea of Black Holes was first proposed in the 1700s by scientists John Michell and Pierre-Simon Laplace, who argued, independant of each other, that there might be objects in the universe with such a large gravitational force, that even light could be trapped. Published in 1916 Einstein’s theory of general relativity which included how gravity does affect light’s motion, gave way to scientific discoveries involving black holes. In Einstein’s own theory, he was only able to approximate the solutions to some of his own equations, however Karl Schwarzschild was able to provide the solutions. These solutions described objects like black holes that had such massive density that nothing could escape them. Schwarzschild theorized that if an object had such a small radius, that the escape velocity will be greater than the speed of light. Because as previously mentioned, nothing is faster than the speed of light, the object would be sucked into itself by it’s own gravitational pull, which would cause the object to disappear. What r...
A Black hole is a theorized celestial body whose surface gravity is so strong that
According to Google.com, an Einstein-Rosen Bridge wormhole is a “hypothetical connection between widely separated regions of space-time.”. A traversable wormhole is a vortex that acts like a shortcut. The difference between an Einstein-Rosen Bridge and a traversable wormhole is that once you pass through a Einstein-Rosen Bridge wormhole, there is no going back, while a traversable wormhole is one that you can travel through freely, passing back and forth. “Wormholes are the solution to Einstein's general relativity field equation, but have been created by theory.”, says nasa.gov.
Just recently a major discovery was found with the help of a device known as The Hubble Telescope. This telescope has just recently found what many astronomers believe to be a black hole, After being focuses on a star orbiting empty space. Several pictures of various radiation fluctuations and other diverse types of readings that could be read from that area which the black hole is suspected to be in.
Black holes were originally thought to have only mere mathematical concepts. There was seemingly no possible way to compress any object into a space small enough to equal to its schwarzschild radius. Later however, astronomer Subrahmanyan Chandrasekhar calculated that stars much larger than our own sun should theoretically be able to collapse into a black hole (UTFC). A star is like a blown up balloon with the force of gravity trying to compress the balloon inwards and the air trying to push the balloon outwards. Likewise, stars are held in balance by gravity trying to collapse the star inwards going against the outwards pressure of the internal reactions of the star called nuclear fusion.
Black Holes Introduction Have you ever thought about black holes how they form, how dangerous, the strength, a mass, or even if what would happen if Earth fell into a black hole? Black holes may seem cool but, after you red this, you will read the dangers and answered questions about black holes. Ask yourself, how would you image a black hole being near a star or planet? Will it be swallowed, sucked, taken apart? Well, black holes have different kinds.
Aziarah wouldn't require assistance. Kyle recognised that as he viewed how she managed to maintain her smile, and an expression of warmth and sexual interest, even as the youth brazenly turned to his friends and indicated that he'd found himself some pussy to wreck. What a man. The Army veterans own countenance lit up momentarily with amusement at the though the guy had no idea that the only pussy that evening, and one to take it rough, would be himself. Kyle hadn't heard the question, but it was one he knew had been asked, because wasn't that got every girls panties wet? The promise to fuck her into next week.
With Dark Nebulae containing large amounts of gas and dust, they provide perfect conditions for stars to form. As the clumps of gas become more dense they begin to pull in surrounding objects with their own gravity. This ball, containing merely dust and gas, continues to condense, causing heat to build in its centre. Now it begins a long process of growing in size and energy until the core temperature is strong enough to form a star. From this point it can take up to 100,000,000 years for it to reach its required energy and be classified as a star, after which it will only lasts a few million years.
Stars are born in the interstellar clouds of gas and dust called nebulae that are primarily found in the spiral arms of galaxies. These clouds are composed mainly of hydrogen gas but also contain carbon, oxygen and various other elements, but we will see that the carbon and oxygen play a crucial role in star formation so they get special mention. A nebula by itself is not enough to form a star however, and it requires the assistance of some outside force. A close passing star or a shock wave from a supernova or some other event can have just the needed effect. It is the same idea as having a number of marbles on a trampoline and then rolling a larger ball through the middle of them or around the edges. The marbles will conglomerate around the path of the ball, and as more marbles clump together, still more will be attracted. This is essentially what happens during the formation of a star (Stellar Birth, 2004).
Black holes are the result of the death of a massive star, leaving behind a dense remnant core that eventually collapses to create a gravitational force so strong that nothing, including light, can escape the force. The theory that black holes existed started back in the early 1900s and since then astronomers and scientists have been trying to get a better understanding of them. This phenomenon has been a working progress for astronomers and scientists for many years and as we develop a better understanding of our solar system, the more likely it is to make a significant discovery that can answer some of the most difficult questions about our incredible galaxy and solar system. The more information we are able to acquire about our universe, the more questions we might be able to answer about our existence. With advancements in technology we may be able to see some significant discoveries and insights into the world of black holes.
Most of the times there are strange things found and assumptions are made about these things, they could be wrong or right but back when a pulsar was found, scientists thought it to be extraordinary calling it substance of great amusement whereas “a pulsar is a s...
Space has always been a pivotal and utmost important subject for many years. In the past, scientists have made monumental advances in this field such as sending people into orbit and landing a man on the moon. Of course, this has only barely been explored and we still have a lot more to see of the ever-vast outer space. One of the most significant topics of all of science has only been touched and there’s still more to come.