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Astronomy and chemistry essay
Astronomy and chemistry essay
Astronomy and chemistry essay
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Our knowledge of chemistry, and the many ways that it surrounds us has helped us better understand the world we live in and the ways in which we can use chemistry to better our world, and improve our exploration of it.
Chemistry in Astronomy: Although it may not seem like there is much use of chemistry in the world of astronomy, knowing that everything is made of the elements in one form or another, astronomy must have some use of chemicals, and surprisingly there are many. For starters what powers the International Space Station? Solar panels, and many of them. The solar panels found on the space station are made of silicon, a direct element from the periodic table, as well as phosphorus, another element. Through bonding and breaking apart these elements, the solar panels are able to harness the sun’s energy, transport it, and then with the help of a generator, create electricity that can be used by the space station operators.
Another example of chemistry being directly linked to astronomy, and astronomical studies is through molecular clouds. Molecular clouds are formed of cert...
Chemists are the specialists in chemistry, that interact with chemical properties, and reactions. The earth is made up of different gases. Some of this gases are needed for life in the planet but other gases can be harmful to the living. Gas’s use in regular quantities are favorable to the earth. The world started to become more advance and had to use more of this gases to produce everyday objects and inventions by men. Little did we knew this chemicals we going to affect us in our life. Chemist Jose Mario Molina actually discovered that chlorofluorocarbons were affecting the ozone layer.
Green Chemistry is not only used in the lab when handling dangerous chemicals, but is also used in everyday life. Some areas where green chemistry may be applied is in medicine, biodegradable plastic, and paint. Pharmaceutical companies are always looking for better ways to make medications have less side effects by making them produce less toxic waste. Also, more and more companies are trying to create products that use compostable or biodegradable materials. Paints usually have toxic fumes that go along with them. Some painting companies are trying to create a product that emits less toxins to better human health and environmental
middle of paper ... ... The Web. 22 Feb. 2014. http://www.chemheritage.org/discover/online-resources/chemistry-in-history>.
Atomic Absorption (AA) Spectroscopy is a quantitative analysis technique that uses the absorption of light through a flame and gaseous chemicals. AA Spectroscopy can be used for a multitude of purposes, most notably finding the concentration of one or a few elements in a compound. AA Spectroscopy can work in two different ways using an open flame and gaseous chemicals or a graphite furnace. Flame AA Spectroscopy works by taking a compound or element and disassociating it into an aqueous solution. The solution is then blown through an incredibly small nozzle which nebulizes the liquid into a very fine mist. The nebulized liquid is then blown through a flame with a very small beam of light passing through it. This light beam detects different elements in the flame and uses the known light absorbance of the element to determine the concentration of the element in the solution. The other form of AA Spectroscopy uses a graphite furnace to heat up and incinerate a sample. A solid compound is placed in the furnace which then heats up to 2000-3000 C effectively atomizing the compound and in the process turning the rest into ash. The light beam is then shot through the furnace as the solid is being heated and subsequently atomized and the machine records the absorbance rate much like the Flame AA Spectroscopy would. The difference between flame and furnace spectroscopy is in the atomization of the sample; because the Flame Spectroscopy uses pressure to atomize the compound, much of the compound is lost when sprayed
Research News Planetary Scientists are Seeing the Unseeable Richard A. Kerr Science, New Series, Vol. 235, No. 2 -. 4784. The. Jan. 2, 1987, pp. 113-117. 29-31. The 'Standard' of the 'Standard'. Stable URL:
The Orion Nebula contains one of the brightest star clusters in the night sky. With a magnitude of 4, this nebula is easily visible from the Northern Hemisphere during the winter months. It is surprising, therefore, that this region was not documented until 1610 by a French lawyer named Nicholas-Claude Fabri de Peiresc. On March 4, 1769, Charles Messier inducted the Orion Nebula, M42, into his list of stellar objects. Then, in 1771, Messier released his list of objects for its first publication in Memoires de l’Academie.1
Chemistry is not used only in a lab environment, but it is used for every aspect of life. One way to look into a more in-depth view of chemistry is to apply it to a hobby, or something that may personally affect your everyday life. One of the biggest parts of my life and my main hobby is flying. Ever since I was little, I have always wanted to become a pilot. I am currently working towards my private pilot’s license and I am also attending the U.S. Air Force Academy starting in June to study aeronautical engineering. Since flying is such a large aspect of my life and is important to me, I wanted to break it down into an aspect of chemistry. I chose this topic because flying is very important to me and it will continue to be a large part of my life as it will end up being my career in the Air Force. Not only will researching the topic of aviation fuel help me to become a more knowledgeable pilot, but it will also help me to understand more about chemistry and expand on the concepts we have learned this semester. Chemistry is extremely important to planes and pilots. One of the most obvious aspects of flying that deals directly with chemistry is fuel. Without fuel, aircraft would not be able to run. The molecular formula of fuel and the combustion of fuel are just some parts that play into how fuel makes an aircraft run.
Chemistry is a branch of natural science that deals principally with the properties of substances, the changes they undergo, and the natural laws that describe these changes. (University of Idaho, 2014) Molecules, as small as they seem, is in the food that we eat and present in our daily lives. Today, scientists would likely know about the history of chemistry but not how chemistry has impacted history. Many would not wonder if these molecules go beyond the chemistry concepts that they have learned. For example, would the world have been different if piperine (molecule) present in pepper had not led to the discovery of the United States? The interesting fact is that molecules have and will continue to shape the world today. In this book, the authors explain in detail how 17 specific molecules had a significant impact on the history of the world. On a whole, this book is very intriguing and very suitable for chemistry lovers as well as the general public.
On the surface Philip Sidney’s “Astrophil and Stella” is a poem about courting a young woman. It is a common assumption and an easily justified one. The title presumes as much as the “star lover” clings to hopes of attaining the “star”. Astrophil attempts to win the heart of Stella through his poetry. Although he is not short of emotion he is in search of adequate words. The true purpose of the poem reveals itself at the end, “look in thy heart, and write” (Sidney Line 14). This sonnet is about the courting of a lover, but it is more importantly the story of numerous writers throughout time. Sidney is portraying the writer with writer’s block and the method to subjugate this voluminous evil. Every writer, at one time or another develops a case of writer’s block. A period in which it becomes difficult to express your thoughts or ideas on paper with the qualities the writer desires. Astrophil and Stella is a metaphor for the relationship between a writer and his audience, a writer and his work, a writer at battle with writer’s block.
Spectroscopy Spectroscopy is the study of energy levels in atoms or molecules, using absorbed or emitted electromagnetic radiation. There are many categories of spectroscopy eg. Atomic and infrared spectroscopy, which have numerous uses and are essential in the world of science. When investigating spectroscopy four parameters have to be considered; spectral range, spectral bandwidth, spectral sampling and signal-to-noise ratio, as they describe the capability of a spectrometer. In the world of spectroscopy there are many employment and educational opportunities as the interest in spectroscopy and related products is increasing.
The concept of Green Chemistry helps scientists utilize materials found here on Earth to better improve our environment from an internal decadence. With the exponentially increasing number of the human population there creates an enormous strain of the use of our natural resources, which thereby requires a need to produce an alternate source, either through chemical, or machinery means, which then leaks problems, such as pollution, into our environment. However, using the concepts of Green Chemistry, which includes, enhanced atom productivity, and the usage of non-renewable resources along with many others, scientists can better neutralize the damaging effects of pollution in our environment. Professor Barry M. Trost received an academic award for his work in developing the concept of atom economy, in which he discovered a way to reduce the amount of chemical waste, while also improving the efficiency of chemical reactions.
Though many people fail to realize it, chemistry is a subject essential to everyday life, due to the fact that it is the branch of science that deals with the identification of the substances of which matter is composed. But what we must understand is that everything in the universe is composed of matter, hence chemistry is necessary in learning more about the world and universe that we live in. There are many careers and fields affiliated with chemistry that people pursue to learn more about the composition of the universe, but for now, let us examine the logistics of three of these careers. These three careers involving chemistry are geochemistry, environmental chemistry, and chemical engineering.
Throughout my school career I have always loved chemistry. In Chemistry there was always a sense that there was more, there was always something new and exciting to be discovered and theories to be proven (or even disproven). Chemistry was the main subject with a real practical aspect to it during school and it is this, along with my genuine fascination with the subject, which fuels my desire to study it further.
One thing us as humans have never been able to fully understand is astronomy. Always having an unexplained mystery, astronomy also has served as a way to keep time and predict the future. The word “astronomy” is defined as the study of heavenly bodies, meaning anything in the sky such as stars, galaxies, comets, planets, nebulae, and so on. Many people, if not everyone, is amazed by the night sky on a clear, moonless night.
I was fortunate enough to take Advanced Placement Chemistry. During my time in this class, I learned a great deal about this expansive subject. Though very hard and challenging, this class was very rewarding. My High School does not offer many classes that involve critical thinking on a college level. Throughout the course, I realized how extremely interesting chemistry really was. I learned in depth electron transport, equilibrium constants, and thermodynamics. Learning how complex some simple everyday occurrences are was fascinating. The burning of a candle may seem simple from the view of a naked eye. On a chemical stand point, it is complex as a rocket taking off. Everybody knows that if you run an electrical current through water, you will be electrocuted. However, this is only due to the electrolytes dissolved in the water providing a road of positive and negative charges for the current to flow. Pure water does not allow for the flow of a current because there are no electrolytes. To me, learning on such a small scale is more enjoyable than learning on a regular or large scale. The small scale of chemistry affects everything on the regular and large scale. The importance of chemistry is what makes it so