In the past‚ many books have been written about the treacherous climb of mount Everest. One of the most well known stories documented on the climb was Into Thin Air‚ written by Jon Krakauer in 1997. The book is based off of the disaster on Everest in 1996‚ which became one of the most dangerous Everest expeditions of all time. At severe chilling climate‚ and extremely low amounts of oxygen‚ climbers of the 1996 Everest expedition were forced to make moral decisions‚ in which they must choose to save
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Sacrifice is best known as giving something up in order to gain something else. Usually risking a life for another life. Jon Krakauer‚ author of Into Thin Air‚ has such a passion for mountain climbing expeditions and others that he was willing to leave his family behind to attempt Mt. Everest and also risk his life to save other fellow climbers‚ and contributes to a theme of being loyal to his climbing partners. Jon fell in deep in love with a woman whom he loved “fiercely (Krakauer 25)” and finally
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Lab: investigating hooked law with springs Purpose: to find spring constants of different springs using the slope of a graph of change in heights vs. the weight force. Also‚ to be able to understand how spring constants change when you add springs in a series or paralle Pre lab predictions: We predicted that the graph of gravitational force (mg) as a function of stretch (delta x) would look like Data: Spring #1: y = 8.2941x + 0.0685 This table represents the different distances that
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Ultra Thin Cloak Can Match Any Background! In the Movie Predator there was an Alien that would uses a Cloaking Device that would hide the Alien in Plain Sight‚ But the effect is far from Perfect‚ due to its attempt to conceal itself is Thwarted from the distortion of Light bending around it. Now‚ Researchers built an Ultrathin “Invisibility Cloak” that Gets around the Problem of Light Bending by turning objects into Flat‚ Perfect mirrors. Invisibility Cloaks are Designed to bend light around an
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Experiment 3: Isolation of Chlorophyll from Spinach and Chromatography Performed February 14th and 16th By Kyle Herzog Organic Chemistry 344 Section 807 Spring 2012 Objective: The purpose of the experiment is to extract pigments from spinach leaves and separate them by column and thin layer chromatography‚ determining Rf values for the pigments. Equations: Rf= Distance travelled by a given compound/Distance travelled by a solvent solution 1. Crude- 4.25/5.5= 0.773 2. Carotene-
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Paper chromatography is a useful technique for separating and identifying pigments and other molecules from cell extracts that contain a complex mixture of molecules. The solvent moves up the paper by capillary action‚ which occurs as a result of the attraction of solvent molecules to the paper and the attraction of solvent molecules to one another. As the solvent moves up the paper‚ it carries along any substances dissolved in it. The pigments are carried along at different rates because they
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The goal of this lab was to create and purify DHFR from BL21 ecoli using column chromatography. To know if we isolate DHFR their will be one band at 53 KD or above 50 KD and in our desalted eluate page should have the highestOD₂₈₀ which translates to the highest enzyme activity .Column chromatography is a method used to purify individual chemical compounds from mixtures of compounds. The main advantage of column chromatography is the relatively low-cost and disposability of the stationary phase used
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combination of salicylic acid and acetic anhydride.The goal of this experiment was to determined the purity of aspirin using different methods. These methods included‚ reacting salicylic acid with FeCl3‚ finding its melting points‚ and by doing Thin-layer chromatography. When you reacted salicylic acid with FeCl3‚ changes in color will occur. Pure Aspirin has a melting point around 135°C and a pure salicylic acid has 158 °C. TLC is used to separate compounds based on affinity for stationary phase or mobile
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Salinity is the measure and concentration of all the salts dissolved in water. Usually measured in parts per thousand (ppt or )‚ ocean salinity is 35ppt and the average river water salinity is 0.5ppt or less (University of Rhode Island). Many factors go into salinity‚ making water salty. To name a few‚ salinity affects the environment through sediment from rocks washes into the ocean‚ evaporation of ocean water‚ and sea ice formation are known to increase the salinity of the ocean (NASA). It
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Simple Distillation‚ Gas Chromatography: Preparation of Synthetic Banana Oil Introduction This experiment gave us the opportunity to work with a variety of new procedures as well as practice procedures that are new to us within the past few weeks of labs. Within the context of the scenario‚ we find that a distilling company that markets a popular banana liqueur is having problems. The banana plantation that they use to create their banana extract was hit hard by a hurricane and their reserves
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