Saturday, May 23, 2020

Geocentric Model Of The Galaxy - 1683 Words

During the seventeenth century, the geocentric model of the galaxy was widely believed in due to the Catholic Church. The geocentric model stated that the Earth was the center of the universe, rather than the sun being in the center, which was the geocentric model. The idea of anyone believing in the geocentric model was frowned upon. Astronomers like Nicolaus Copernicus had voiced their opinions on it, yet he was chastised for it. Galileo Galilei was an astronomer, physicist, engineer, philosopher, and mathematician. When Galileo published his book, The Dialogue, which regarded the positioning of the solar system, the Church believed it was less hypothetical than they expected it to be, which proved to be problematic. The clash between†¦show more content†¦Once in Rome, Galileo wrote: â€Å"His Holiness has begun to treat of my affairs in a spirit which allows me to hope for a favorable result† (Linder). Throughout their meeting, Riccardi told Galileo that as long as The Dialogue was stated as a hypothesis, the book would be able to be published. When Riccardi read it, he didn’t think that the book was as hypothetical as they had agreed on, and demanded that it be revised so that it was consistent with the Pope’s position. In 1632, The Dialogue was published. Rapidly, it became very popular. The Pope ordered that it should be taken off the market, and went as far to say: â€Å"Your Galileo has ventured to meddle in things that he ought not and with the most grave and dangerous subjects that can be stirred up these days (Linder). The Pope thought that Galileo’s book was just a thinly-veiled attempt at restating the Copernican model, and even believed that Galileo tried to ridicule him by debunking the argument made by the Pope about the tides. The reason for the popular belief in the geocentric theory was due to the Catholic church and the Bible. Some people believed that the Bible clearly states that the Earth does not mov e. These creationists believe that the scientific assault on the Bible not only began with biological evolution, but the acceptance of the heliocentric theory as well. Modern geocentrists use both Biblical and scientific arguments for their case. The Scriptural passages they use don’t address heliocentricityShow MoreRelatedEver since the beginning of time there have been stars. Not only stars in the sky, but moons,1700 Words   |  7 PagesEver since the beginning of time there have been stars. Not only stars in the sky, but moons, planets, and even galaxies! Astronomy is defined as the branch of science that deals with celestial objects, space, and the physical universe as a whole. In other words it is the study of space, planets, and stars. Throughout the ages, many people have used astronomy to help them learn about the universe, our own planet, and even make predictions about life itself. Understanding astronomy means understandingRead MoreFrom the Large-Scale Universe t o the Milky Way762 Words   |  3 PagesCosmology is the study of the universe, everything from the largest galaxies to the smallest atom. It attempts to answer the question, â€Å"How does the universe work?†, by looking at everything in the universe and working to understand it. Cosmology has always been studied, however in the last 20 years, technology has given scientists new information and allowed for an increasing knowledge of the structure and history of the universe with the ultimate goal of finding a theory that can explain everythingRead MoreEssay Copernicus and the Lack of Freedom of Speech Before 17911209 Words   |  5 Pageslived through the early Reformation. During that time the Catholic Church controlled the people. Anyone who disobeyed the Catholic Church was either put into prison or even sentenced to death. The major concept that the Catholic Church held was the geocentric theory, that the Earth is the center of the universe. Their argument was that God had not only blessed humans with its nature but also granted humans a special place to live, which was in the center of the universe. However Copernicus was not completelyRead MoreAstronomy Difficult Questions1145 Words   |  5 Pagesconstellation named after a mythical princess who was rescued by Perseus. Within its boundaries is the nearest spiral galaxy to the Milky Way. What is it? 13. Aristarchus of Samos in 280 BCE was one of the earliest philosophers to suggest which model of the solar system? 14. A black hole is always surrounded by an ___________. 15. The Pinwheel Galaxy, a spiral galaxy located in the constellation Ursa Major, is also known as M101. What does the M stand for? 16. What is the nameRead MoreEvolution, Structure, And Ultimate Fate Of Neil Degrasse Tyson2479 Words   |  10 Pagesextends past the beginning of humankind and the following philosophers, mathematicians, and astronomers will attempt to provide explanations of what is known today as the Great Unknown. The universe of the past was understood to be a simple one-galaxy model that was both unchanging and immeasurable. Theories have constantly changed and been reconstructed to better portray the progression of human understanding over time. â€Å"The cosmos began 13.7 billion years ago with the big bang. A fraction of a secondRead MoreAstronomy : The Field Of Study961 Words   |  4 Pagesjobs? †¢ Practitioners in this field are called astronomers (2) †¢ Astronomers study the planets, sun, asteroids, comets, and everything else in space (2) †¢ Astronomers try to understand the universe and try to understand what in the solar system, galaxy, and universe (2) †¢ They study the evolution of planets and stars to more understand how our solar system works (2) †¢ Astronomers study physics at work throughout space (2) †¢ Astronomers study other stars and try to see what types of planets areRead MoreThe Development Of Telescope1641 Words   |  7 Pagessky, and developed their own routine upon that. Observed this mysterious sky for centuries, Greek astronomer Ptolemy finally developed a geocentric model in the Second Century A.D in his book Almagest. In his work, Ptolemy made all of his assumptions were purely based on observations. In 1543, a Polish astronomer Nicholaus Copernicus polished a heliocentric model, which again was derived on visual evidences. These revolutionary discoveries took years to complete. As a comparison, modern astronomicalRead MoreThe Development Of Astronomy During The Scientific Revolution1888 Words   |  8 Pagesthe mid-16th century, the widespread belief among Europeans was that the stars and other celestial bodies orbit the Earth, a theory established by the astronomer Ptolemy (Furlong 80). With the limited technology available at their time, Ptolemy’s g eocentric theory was left largely untested, at least until the dawn of the Scientific Revolution. During the Scientific Revolution, a period of several hundred years where science developed to greater resemble our modern practices rather than the more religiousRead MoreThe Solar System : How Our Understanding Has Changed1057 Words   |  5 PagesEarth’s surface. Around 130 B.C., Ptolemy wrote Almagest, which was a huge collection of astronomical data which included mathematical models, information about eclipses, and planetary and stellar positions and movements. It remained a major go to book for astronomy for hundreds of years, and was not seriously challenged until Copernicus disputed the geocentric model of the solar system in the 1500’s Read MoreThe Most Incomprehensible Thing About The World1743 Words   |  7 Pagesuncharted world they live in and make it comprehensible. After the tremendous explosion, hundreds of billions of stars were swirling and interacting with each other by gravity, constituting a galaxy. In the midst of chaos, there was the Milky Way galaxy, our galactic home. Unlike a regular spiral, the Milky Way galaxy is a barred spiral that was comprised with two minor arms and spurs. One of the spurs, Onion Arm, contains the sun and the solar system. There are eight planets in our solar system and they

Monday, May 11, 2020

The Reaction of Iron Nails with a Copper Solution Essay

Section Assignment 3.4 Part F – The Reaction of Iron Nails with a Copper Solution Introduction: The experiment in this activity involves the reaction between a copper (II) chloride solution with iron nails and the mole ratios involved in the reaction. Measurements are taken to determine the moles of each reactant involved in the reaction and thus the number of atoms or molecules involved. Apparatus and Materials: Refer to the reaction of iron nails with a copper solution assignment in Module 3, Section assignment 3.4 Part F of the Chemistry 11 course. I was unable to do this experiment because I do not have access to an appropriate facility that is designed for chemistry experiments, appropriate safety equipment, or a qualified†¦show more content†¦3) Determine the mass of the nails after they are completely dry. * Step G: 1) Separate the solid from the liquid in the beaker by decanting the liquid. Ask your instructor to demonstrate the correct procedure. 2) Rinse the solid with about 30 mL of distilled water and decant the liquid from the solid. It is critical that as little solid as possible is lost during this process. Repeat the rinsing two or three times. * Step H: 1) Pour 25 mL of the 1 M hydrochloric acid into the beaker and rinse the solid by swirling the acid around in the bottom of the beaker. Caution – Hydrochloric acid is corrosive to eyes, skin and clothes. Wearing a lab apron, rubber gloves, goggles, and a face shield is essential. Rinse any spills on skin or clothing with plenty of cold water. Clean up spills immediately – ask your instructor for help. 2) Decant the hydrochloric acid from the solid and then again rinse with 30 mL of distilled water and decant. Be careful not to lose any of the solid. * Step I: 1) Allow the copper in the beaker to dry at low temperature in a drying oven for at least one hour. 2) Determine the mass of the beaker and the copper. 3) Repeat the drying process just to be sure that the copper is completely dry, and again determine the mass of the copper and the beaker. 4) If the masses agree, stop. If the masses are more than 0.05 gram different, then repeat the drying process until there isShow MoreRelatedLab Report1259 Words   |  6 Pagesunit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles i nvolved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine theRead MoreChemistry Internal Assessment1033 Words   |  5 Pagesthe combined piece into some sort of solution that creates conductive atmosphere , the general purpose of a voltaic cell is to convert the chemical reaction between the metals and the solution into an electrical charge , Hypothesis: the voltage produced by magnesium and cupper = the sum of the voltage produced by magnasium and iron ; and iron and cupper Variables: Independent variable: one metal use in one voltaic half cell: (half of the redox reaction occurs at each half cell, ThereforeRead MoreReactions And Reactions Of Redox Reactions2214 Words   |  9 PagesIntroduction: Without the millions of chemical reactions that occur every day, life would be completely different. An important class of common reactions includes those which involve the simultaneous transfer of electrons between chemicals, commonly referred to as redox reactions or oxidation-reduction reactions. Redox reactions are whole reactions composed of two different half reactions known as oxidation (where electrons are lost) and reduction (where electrons are gained) (Chemguide, 2013). WhenRead MoreChemical Reaction Of Chemical Reactions1138 Words   |  5 PagesIntroduction: A chemical reaction is the process of rearranging the atoms in reactants to create new and unique substances known as products (3). Substances are either a chemical element or compound, which cannot be broken down into simpler substances by normal chemical procedure (3). Reactants are substances that undergo specific changes in the process of a reaction while products are the final product of the reactants when the chemical reaction is completed. In a chemical reaction the least amount ofRead MoreSOME INVESTIGATIONS ON THE CORROSION OF IRON2389 Words   |  10 PagesMayceemae M. Barnuevo CHEM 17.1 13L Group 1 February 7, 2014 February 19, 2014 Exercise 12 SOME INVESTIGATIONS ON THE CORROSION OF IRON I. Introduction Metals undergo natural destruction that allows a spontaneous deteriorating reaction where they return to their original state from where they are obtained upon contact with the surrounding, particularly when reacted to oxygen. Such phenomenon is known as corrosion (Zumdahl, 1998). This leads the surface of the materials to rust in due time. UsuallyRead MoreCorrosion and Its Prevention1677 Words   |  7 Pagesimpervious to air and water. In other cases (e.g. iron), however, the coating either flakes off or is pervious to both air and water. So the whole piece of metal can corrode right through. Ã‚   The most common forms of metallic corrosion are caused by electrochemical reactions, wherein two metallic phases (e.g., iron oxide and iron) react in the presence of electrolytic solution. Another mechanism of metallic corrosion is caused by chemical reaction, which explains how the protective layer of the metalRead MoreHkdse Chemistry – a Modern View 1 (Sample) Suggested Answers (Coursebook)10079 Words   |  41 Pagescheck the name against the Periodic Table.) A1.3 Sodium - silvery grey solid; Chlorine - greenish yellow gas; Sodium chloride - white solid. A1.4 (a) Hydrogen, oxygen, nitrogen, iron, sulphur (b) Water, carbon dioxide, carbon monoxide, sodium chloride, iron(II) sulphide (c) Air, sea water, town gas, sodium chloride solution, wine (Other answers may be given.) A1.5 (a) Chemical change (b) Physical change (c) Physical change (d) Chemical change (b) and (c) are physical changes because no new substancesRead MorePotato Battery1542 Words   |  7 Pages 1.5 m copper bell wire 12 hot-galvanized (not electro- galvanized) 11⠁„? 2-in. zinc roofing nails 12 solid-brass wood screws wire cutters solder, flux, and soldering iron Procedure PART A one high-brightness red LED (SLA-591LT3; available at Radio Shack # 276-006A) hammer (optional) voltmeter (optional) 6- or 9-V battery screwdriver 1. Using the wire cutters, cut 12 pieces of copper wire 10 cmRead MoreAlloy: Iron and Steel3647 Words   |  15 Pages------------------------------------------------- Alloy Steel  is a metal alloy whose major component is  iron, with  carbon  content between 0.02% and 2.14% by mass. An  alloy  is a  metallic  solid solution  composed of two or more  elements. Complete solid solution alloys give single solid  phase  microstructure, while partial solutions give two or more phases that may or may not be  homogeneous  in distribution, depending on thermal (heat treatment) history. Alloys usually have different properties from thoseRead MoreOrange Battery3847 Words   |  16 PagesLike a lemon or a potato, an orange can produce electricity if a copper and zinc terminals are inserted in it. The copper terminal is positive whereas the zinc is negative. The chemical reaction inside the potato causes the electrons to move from the zinc to the copper. The experiment was demonstrated by Mustafa Daif and assited by Fatima Ali. Special thanks go to Christina Matouq. Veggie Power! Making Batteries from Fruits and Vegetables Project Kit Available! Order Your Project Supplies

Wednesday, May 6, 2020

Learning Team Deliverable Week Free Essays

Walter and Traction. The customers and subscribers of the internet and cell phone service started sharing information with each other and decide to file a class action suit against Walter and Traction. Class Action Fairness Act (CAFE) is at the national level of Tort reform legislation. We will write a custom essay sample on Learning Team Deliverable Week or any similar topic only for you Order Now This type of legislation must consist of 1 00 members and citizen from various states. â€Å"Intentional tort disparagement is the publishing of a false statement of a material fact about a business’s product or service† (Subtask, Browne, Heron, Geometry-Meyer, Barracks, Doge, Williamson, 2012). Suggestion to President/Owner—-Divvies Hernandez Even though what Traction is doing is not illegal and I’m sure was clearly stated in the customer agreement that was signed by the customer its sometimes best to settle than to waist money and take your chances on someone else deciding whether the company should be help legally responsible. The owner or whomever is making the decisions should decide on what the person or group of people are trying to get out of this case is worth settling on. If the complaint is that they weren’t given what they thought they were given than the company may want to give them what they expected for the time period that the service was paid for. With prepay payment is usually made one month at a time so the company may want to give them a free month with the expectations they had with their service and clearly state what the future agreement will be after the settlement has been taken care of. The company will than need to change advertising and contract agreements disclosure to make sure this is prevented in the future. How to cite Learning Team Deliverable Week, Essays