In the book Ender's Game by Orson Scott Card he introduces Andrew "Ender" Wiggin, the third in a family of child geniuses, is selected by international military forces to save the world from destruction. Before being chosen Ender wears a device called a monitor that allows the heads of the military to see things as Ender does. Ender's brother Peter and his sister Valentine also wore this monitor, although neither was selected, and they didn’t have it for as long as Ender, and Peter hates Ender for
Irving Stone portrays Michelangelo's big ego and determination, taking the reader through his childhood to the moment he takes his last breath. Similar to the movie Ender's game, it shows Ender's determination to win the war with himself and the Formics . The main characters in the movie and book both endure thick and thin to face the desire to overcome obstacles. The most outstanding feature that the main characters from the movie and book, is their determination. In the novel the main character
The main characters are Andrew “Ender” Wiggin, his brother Peter and sister Valentine. Peter is murderous boy, bullying Ender and telling him and Valentine that he will kill them. [9] Valentine is the exact opposite of Peter, being kind and protective, watching over Ender. [8] Ender is told to be a mix of the two of them. All three are very smart and intuitive, the book calling them geniuses, and children of geniuses. Bean and Petra are two students at Battle School who become Ender’s friends and
are in diet soda are aspartame and saccharin. Aspartame is an artificial sweetener, and it is a protein produced from aspartic acid. Aspartame is used in any different foods and drinks because it is about 200 times sweeter than sugar, so that means much less of it can be used to give the same amount of sweetness. When aspartame is digested, it breaks down into aspartic acid, phenylalanine and methanol. These components are also used in a selection of foods such as milk, meat, dried beans, fruits and
Activation of Zero-Valent Magnesium using Acetic Acid for the Degradation of Triacetone Triperoxide in Ethanol Abstract Triacetone triperoxide (TATP), a cyclic peroxide, is an explosive frequently used by terrorists and amateur chemists due to the ease of synthesis and the availability of reagents. A degradation method for degrading TATP in ethanol (EtOH) was proposed using an activated, zero-valent magnesium (ZVMg) system. Different acids were tested to determine their effectiveness in
positive or negative for example the thickness and the amount of peptidoglycan later presences or absence of outer membrane and teichoic acids. Where gram positive have two later and negative has three layers. Gram positive the cell wall is a single layer, primarily composed of peptidoglycan, does not contain outer membrane and contains negatively charged teichoc acids, this result of a blue color indicator. For gram negative is more complex that the Gram positive, its membrane lies outside of th...
The Effect of Temperature on the Activity of the Enzyme Catalase Introduction: The catalase is added to hydrogen peroxide (H²0²), a vigorous reaction occurs and oxygen gas is evolved. This experiment investigates the effect of temperature on the rate at which the enzyme works by measuring the amount of oxygen evolved over a period of time. The experiment was carried out varying the temperature and recording the results. It was then repeated but we removed the catalase (potato) and
carboxylic acid produce an ester that has a strong, pleasant odour? Introduction: This research task and practical is performed with the aim of investigating the formation of esters through the reaction between different alcohols with carboxylic acids and discussing their usage as
On Physical State Solubility Volatility Importance INTRODUCTION In 1920, Latimer and Rosebush introduced the idea of "Hydrogen Bond" to explain the nature of association in liquid state of substance like water, hydrogen fluoride, ammonia, formic acid etc. In a Hydrogen Compound, when hydrogen is bonded to hydrogen bonding elements which are highly electronegative atom (such as F, O, N) by a covalent bond, the electron pair is attracted towards electromagnetic atoms which is so strong that it
Thiosulphate and Nitric Acid Planning Aim The aim of this investigation is to find out and observe how the temperature affects the rate of reaction. I am going to investigate the rate at which the solutions of nitric acid (HNO³) and sodium thiosulphate (Na²S²O³) turn cloudy (when mixed together), when the temperature is changed. Variables In this investigation I will only have one variable: § The temperature of both solutions (sodium thiosulphate and Nitric acid), so that I will
Liquid Liquid Extraction We were asked to extract benzoic acid from a kerosene-benzoic acid mixture. This was to be done using the stirred liquid-liquid extraction column in the senior laboratory. Fresh water was used as the continuous phase in the extraction. We were asked to measure the benzoic acid concentrations of the feed, raffinate, and extract streams. These measurements were to be made at several different steady-states. The number of theoretical stages and the height of the theoretical
control of E. coli and S. aureus by acetic acid, lactic and citric acid. AIM AND OBJECTIVE The objective of the study can be summarized as follows. 1. Isolation and identification of E. coli and S. aureus from poultry meat in different slaughtering house of Namakkal district 2. Evaluation of chemical food preservatives for their antibacterial activity against E. coli and S. aureus 3. Study on the minimum inhibitory concentration of acetic acid on E. coli and S. aureus 4. Evaluate and
The acidity or alkalinity level is dictated by the pH, potential of hydrogen, scale. Soil pH or soil reaction is an implication of the acidity or alkalinity of soil and is measured in pH units. Soil pH is characterized as the negative logarithm of the hydrogen particle fixation. As the measure of hydrogen particles in the soil builds the soil pH diminishes along these lines getting to be more acidic. From pH 7 to 0 the soil is progressively more acidic and from pH 7 to 14 the soil is progressively
stainless steel col-umn 25 cm x 4.6 mm packed with spherical end-capped octadecylsilane bonded to porous silica (5µm), with a pore size of 10 µm and carbon loading of 19 per cent • Mobile phase: A. a 0.112 per cent w/v solu-tion of orthophosphoric acid adjusted to pH 7.0 using a 4.2 per cent solution of sodium hydroxide, B. 1 volume of water and 9 volumes of acetonitrile • Flow rate: 1 ml per minute • UV detection: 275 nm • Injection volume:10 µL 23 2. Assay of aceclofenac (IP 2010) • Weigh
It may sound a little strange, but beer dryer has unseen medical and aesthetic effect. Thanks to the malt and hops that are rich in proteins, this drink is recovering cracked hair and revives volume. Also, maltose and saccharin provide superior shine and give new strength to your scalp. This technique should be used by all those who regularly ironed their hair. Also, it is the best way to restore natural shine and volume. In addition, there are numerous benefits for the skin you probably did not
Table 2.6 shows the effect of pulping conditions on black liquor viscosity. The viscosity may vary significantly from mill to mill. Viscosity increases with increased dry solids content. An increase in temperature lowers the viscosity. The practical limit for handling the liquor is the pumping limit of 300-500 cp. The viscosity must always be below this level, and is usually much lower in the evaporation plant. If the liquor at final concentration is stored at atmospheric pressure, the limit of
concentration on rates of reaction using Sodium Thiosulphate. and Hydrochloric Acid. The purpose of the experiment is to see how different volumes of Hydrochloric Acid affect the rate of reaction. The reaction, which produces solid Sulfur, it will then be followed by measuring the time needed for the reaction to become opaque/cloudy. Hypothesis: I predict that the higher the volume of concentrated Hydrochloric Acid the less time it will take for the cross to disappear. This experiment has to do
electrochemical and environmental studies. Secondly, to show how to use glass electrodes in the determination of ionization constants of weak poly acid through titration of pH. Then, to study the reaction of hydrolysis using glass electrodes. For this experiment, there were two parts which were determination of ionization constants of phosphoric acid in part A and determination of degree and constant of hydrolysis of aniline hydrochloride in part B. To make the electrochemical cell, there were a
The melt flow index (MFI) is a measure of the ease of flow of the melt of a thermoplastic polymer. It is defined as the mass of polymer, in grams, flowing in ten minutes through a capillary of a specific diameter and length by a pressure applied via prescribed alternative gravimetric weights for alternative prescribed temperatures.Polymer processors usually correlate the value of MFI with the polymer grade that they have to choose for different processes, and most often this value is not accompanied
Introduction The aim of the following experiment is to determine the correlation between the level of nitrates in the water and the growth of duckweed. It is expected that the increased amount of nitrates in the water will cause the duckweed to grow. The duckweed is expected to absorb the nitrates as it grows and therefore lower the levels of nitrates in the water. This is a valid aim as the results could be used as a method of deterring and removing eutrophication in bodies of water where other