constancy of period of pendulum 1581: Robert Norman‚ dip of compass shows that Earth is a magnet 1584: Giordano Bruno‚ suggests that stars are suns with other Earth’s in orbit 1585: Giovanni Benedetti‚ impetus theory is better than Aristotle’s physics 1585: Simon Stevin‚ law of equilibrium 1586: Simon Stevin‚ pressure in column of liquid 1586: Simon Stevin‚ verification of equality of fall rates 1589: Galileo Galilei‚ showed that objects fall at the same rate independent of mass 1592: Galileo
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purpose of this experiment was to investigate the different variables describing simple harmonic motion (SHM) using a spring-mass system in vertical oscillation. We measured the position and velocity of the spring-mass system under different conditions in order to extract parameters used to describe SHM such as amplitude‚ frequency‚ and phase. We tested whether the predicted behaviour based on our mathematical model of SHM was cohesive with the observed parameters in the experiment. We also used Hooke’s
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When a tornado forms or passes over a water surface‚ it is called a waterspout. Like tornadoes‚ they form in many shapes and often occur in series or families. Measurements of tornadoes can be a few kilometers an hour to as high as 64 to 80 kilometers per hour. We should know what to do before‚ during‚ and after a tornado has hit our town. Tornados cause much damage and we people should be prepared before a tornado‚ during a tornado and what to do after a tornado. Before a tornado‚ we should listen
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Student Project The Physics of Sports Instructions: One of the best (and most fun) ways to explore physics and how it relates to the real-world is through sports. Every sport utilizes multiple physics principles. For this project you will chose a sport and study the physics principles involved. The sport you choose must be an actual sport‚ not a computer simulation or animation You will create a short PowerPoint presentation (5 slides max) summarizing your project. The following outline is designed
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Physics began when man first started to study his surroundings. Early applications of physics include the invention of the wheel and of primitive weapons. The people who built Stone Henge had knowledge of physical mechanics in order to move the rocks and place them on top of each other. It was not until during the period of Greek culture that the first systematic treatment of physics started with the use of mechanics. Thales is often said to have been the first scientist‚ and the first Greek philosopher
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Each year‚ thousands of patients die in hospitals because of errors in medication. These deviations occur mostly because of the complex process of drug administration. Errors can arise from the complicated system of drug administration itself; from prescription to the actual administration to patients. These mistakes in drug administration can be caused by many factors. Some of the reasons why these errors occur are the inadequate knowledge and skills both by the prescribing physician and the administering
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Healthcare Research and Quality (2000)‚ “medical errors are responsible for injury in as many as 1 out of every 25 hospital patients; an estimated 48‚000-98‚000 patients die from medical errors each year. Errors in health care have been estimated to cost more than $5 million per year in a large teaching hospital‚ and preventable health care-related errors cost the economy from $17 to $29 billion each year”. In addition to the monetary cost of errors‚ the physical and psychological costs such as pain
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Bruce Lomba Monday‚ May 6‚ 2013 Gonçalo Diogo Santos‚ Yr. 11.1 Mr. Bruce Lomba Monday‚ May 6‚ 2013 Thermal Physics (Heat) Thermal Physics (Heat) One World Essay One World Essay Introduction On this essay I am going to investigate about how thermal physics interfere with the construction of railways. I was given the possibility to choose between explaining how thermal physics is used in the design of railways or roads and bridges. I chose to explain how it is used in railways because
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EXPERIMENT 1: REACTIONS OF ENOLATE IONS WITH CARBONYL GROUPS Aims In this experiment we used two techniques for the reactions of enolate ions with carbonyl groups. One technique used was Doebner reaction and the other technique used was Claisen-Schmidt reaction. Therefore the aim of this experiment is to synthesize trans p-methoxycinnamic acid and to synthesize dibenzalacetone via an aldol condensation reaction between acetone and benzaldehyde. The products would be recrystallized using ethanol
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155 Legal and Criminological Psychology (2006)‚ 11‚ 155–177 q 2006 The British Psychological Society The British Psychological Society www.bpsjournals.co.uk Invited article A fundamental attribution error? Rethinking cognitive distortions† Shadd Maruna1* and Ruth E. Mann2 1 2 Queen’s University Belfast‚ Northern Ireland‚ UK HM Prison Service‚ London‚ UK The notion of ‘cognitive distortion’ has become enshrined in the offender treatment literature over the last 20 years‚ yet the
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