SPACE RACE 1957-1969 By Mahbube Adem The Cold War Cold war was an era of conflict, tension and competition between the United States and the Soviet Union. It started in mid-1940s and lasted till the early 1990s.…
Karl Schwarzchild was a German astrophysicist who used Einstein’s theory of relativity to compute and calculate the gravitation fields of stars. His solution to Einstein’s equation led him to calculate the radius of an object of particular mass for which light could not escape or in other words “that the fabric of time-space would fold in on itself, creating a ‘singularity’ – a region with zero volume and infinite density. [3]…
Society as a whole has always had a thirst to expand their knowledge of the ever expanding universe around them. This drive has led man from living in caves and fighting every day to live; to living in the tallest manmade structures all over the world. The world of science has also advanced in leaps and bounds. In the area of physics it is an ever expanding field that encompasses many topics…
technology. By the 1950s, technology was advanced far enough that Space travel was a reality (McNesse 4).…
When we first hear about the size and age of the universe, we don’t realize how big and how old the universe actually is. We have been learning about the history of the universe for many years, but we can only find true facts and real artifacts dated from 10,000 B.C. and onwards. The universe is actually around 13.7 billion years old, but yet we have only learned its history from 10,000 B.C. and up. Legends and myths carry on from then to this day, but we don’t know if they are true or if they are just made up. We learn about different civilizations and see how they expand their territory. We view their paths to conquering land and discovering new places, thinking it probably took a couple of weeks to get to one place from another. But in reality, it took months, some even…
An important aspect of Einstein's theory of relativity to note is that he proposed matter causes space to curve. If we pretend that "space" is a two-dimensional sheet, a planet place on this "sheet" would cause it to curve (see diagram below). This curvature of space results in what we perceive as gravity. Smaller objects are attracted to larger onesbecause they "roll" through the curved space towards the most massive objects, which cause the greatest degree of curvature. In relation to time, this curvature causes the gravitational time dilation effect. Under normal circumstances, this effect is impossible to observe. However, in the presence of the extremes of our universe (such as black holes, where a huge amount of matter is compressed into an extremely small volume), this effect becomes much more obvious. To a distant observer, an object falling into a black hole would appear to never reach it, due to time dilation causing time to "progress" extremely slower, at least relative to the distant observer (the object in question,…
In researchers timeless attempts to unveil the mystery of time, some have came upon a conclusion that time exists in the order of past and present. The future ceases to exist due to the fact that the future is affected by the present. If we were to ponder deeper into the context of time, what seemed like the future is very well a projection of predictions formed by present time. If future does exist, hence every occurrence of the present time was scripted like a play and events will subject to no alterations. However, from what humanity portrays, it is the humankind who led time to its complex state of contradictions.…
During the late 1950s to the mid 1970s, the US and the Soviet Union, the two Cold War rivals, engaged in a Space Race, a fierce competition for supremacy in spaceflight capability. The Soviet Union achieved an early lead in the Space Race by launching the first artificial satellite into the space with Sputnik 1. The United States quickly followed suit three months later with the launch of Explorer 1. Unsatisfied with being the second to reach space, President John F. Kennedy set his sights for a much higher goal: the Moon. In 1961, President Kennedy announced a national goal of landing a man on the moon by the end of the decade. Eight years later, the goal was actualized with the Apollo 11 mission. In the years between, there were copious technological…
notion must be ready to explain the past, present and future states of the universe in an…
Humans have dreamed of leaving the earth and traveling space for many years, and up to this day they have taken many steps in the right direction. Yet, with every new frontier they approach, new problems loom over the horizon. Some of these problems arise right here on Earth. Some of the issues have been resolved, such as escaping the forces of gravity to reach outer space. Most of the problems are far more arduous and the solutions need more time to be worked out properly. In “The Coming Schism” by James E. and Alcestis R. Oberg, they posit that humans can colonize space. Humans need to buckle up and build the technology which will help to solve problems that would arise to settle outside earth. The Obergs use comparative strategy that is to use the yardstick of the past to measure future to convince the reader that the colonization of space is possible, if problems such as, communication, cultural conflict and the rejection to space exploration is solved. The solutions to the problem are important for the journey to space, because they all have the potential to disrupt progress.…
The years after World War II was a time of great scientific and technological advancements. With these advancements came great tension and rivalry between the United States and the former Union of Soviet Socialists Republic (USSR). The biggest rivalry between the two superpowers was the advancement in space technology. In 1952, the International Geophysical Year (IGY) was established in which scientists stated that in the time between July 1, 1957 and December 31, 1958, solar activity would be at a high point. The IGY made it so that both the US and the USSR became determined to be the first to reach space, and so the space race was born. During the space race, the USSR made many launches that were very advanced and superior to the US. The Soviet Union was technologically superior to the United States during the Space Race in terms of the Sputnik, Luna, and Vostok programs.…
Talking about the universe is always a mysterious subject for us. There are lots of theories about the universe by different scientist. Nobody actually knows the reality. Like the universe the topic,” Black Hole”, is also mysterious. We know what black hole is but we are not able to give the detail information about it. As everybody says that,” black hole is a region in space that has an indefinite density and the gravitational force that does not let anything escape from its influence that includes light too”. There is kind of debate among the scientist about considering sun as black hole. Many believe that the mass of the black hole is 10 times more than that of the sun, so we cannot consider sun to be the black hole. There is question in everybody mind what is black hole? , how it is originated? , what black hole able to do?…
Black holes are one of the most fascinating and unrealistic seeming objects in the world to many people. They seem to be right out of a science fiction novel, along with white holes, and wormholes. So far white holes and wormholes are still only science fiction. A white hole is a reverse of a black hole. And a wormhole is a combination of a white a black hole said to be a place of time travel. However, even quite a long time ago some members of our society realized that the black hole is not science fiction, but is very real and is very interesting. I plan to take you with me on my road to discovering black holes; the history of black holes, what is a black hole, how are they formed, singularity and event horizon, are black holes black and how to detect them, accretion disk, and black holes and evaporation.…
In Einstein’s theory of general relativity, time and space are made dynamic and are curved by matter and energy. This has allowed physicists to dream up configurations that would allow travel to far distant places in the universe that were once made unattainable by the sheer distances and the natural speed limit of the universe; the speed of light. The theory has also opened up the possibility to travel through time. Like the previous theories of classical Newtonian physics and special relativity which feature flat spacetime, an observer will always measure time going forward; their clock will never tick backwards. However with general relativity, their lies a possibility that spacetime may be warped in such a configuration that you could fly off in a spaceship and come back to earth before you left in a so called “closed time like curve”.…
Can you believe that everything in the universe, all of the stars, the galaxies, and even our world, was once the size of this, a mere marble? All that we are comprised of was compacted into this tiny space. And then it expanded into a trillion times its size in less than a trillionth of a second. All of the things we see and hear about and what you have just heard or will hear about, are all a product of what happened, trillions of years ago. Hosted by Morgan Freeman, Through the Wormhole explores the deepest mysteries of existence — the questions that have puzzled mankind for eternity. Are we alone in this universe? Can we live forever? Can we travel faster than light? These questions have been pondered by the most brilliant minds in history and now, modern science may be able to provide us with answers. Today, we will strap into our spaceships and blast off from this world to see how close we can really get to a black hole; while we are out in the vacuum of space, we will research and analyze what Black holes really are, and finally we will return back to earth and see how these findings affect us.…