Rationale The history and usage of ink can be traced back to the 18th century B.C.‚ with the utilization of natural plant dyes‚ animal and mineral inks based on such materials. Ink is a pigment in a liquid form or paste form used as colorants and dyes. Ink provides much of the color on paper in the modern world and has many uses in different cultures around the globe. Also‚ they are becoming more and more expensive because of their increasing purposes. Although ink is universally available today‚
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Unit 4 M1: Explain how accuracy may be ensured in the techniques used Cynthia Nzeh Task 1 1) Discuss how your choice of equipment and how it affected the accuracy of your method. Discuss good volumetric technique. 2) Calculate the apparatus error for the method used. 3) Given the value calculated by the senior technician calculate your error and comment on this error in relation to the apparatus error of the method. In the titration‚ I used these available instruments to ensure my results would
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The different genetic variation between plants and animals Aim: to see the similarities between the different breed in a species Genetic variation is what allows natural section and more importantly new alleles (a number of alternate forms of the genetic pool) to enter the population. By having different genetic combinations‚ those of a population reveal different traits which may or may not be to their benefit‚ in respects to their social and environmental interactions or surroundings. Because
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Human Variation There are many different types of human variation that are influenced by a population’s geographic location‚ including skin color‚ height‚ and body proportions. Many geographic areas are associated with certain physical characteristics that cause them to be commonly classified as different races‚ which also include hair color‚ eye color‚ and cranial shape. These characteristics are in addition to the physical characteristics listed above that are
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ABSTRACT The Use of Apple Extract/Juice as a Disappearing Ink The purpose of my study is to test if apple extract/juice can be used as a disappearing ink The following are the procedures used to make a disappearing ink using the apple extract. The following are the materials; Q-tip‚ paper‚ apple juice and a Candle (any source of heat will work‚ ex. lamp‚ iron‚ oven). Begin by pouring a bit of the apple juice into a bowl. Use a q-tip‚ toothpick‚ or a paintbrush to write your message on the
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RESEARCH ARTICLE LANGUAGE VARIATION By Dr SHAMIM ALI ABSTRACT We must
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E-Ink Analysis At an early stage‚ E Ink had a broad perspective and considered several market opportunities‚ both in emerging- and mature industries‚ as well as different business models‚ in which all leveraged their unique technology. In 1999‚ E Ink insured the protection of their technology by acquiring 26 patents‚ which protected them from other firms to replicate their technology. E-ink moved forward building up a team of high quality people and
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second presentation which was much easier to work with ‚ this also increased the scope of the presentation and I had to cut it down to a 10 minute presentation.Learning from the class ‚ I picked up the technique to have a marking on the floor and in the second presentation ‚ I used this technique for my Pre-introduction which was helpful as there was curiosity among audience on the discussion topic.The pre-introduction also had a hook for the audience to listen to the next set of slides‚ the transition
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Abstract-Timur Solid phase extraction is a sample preparation technique that overperform liquid /liquid extraction in its efficiency‚ labor intensity and waste disposal. The purpose of this lab is to learn how SPE can be used to identify trace amounts of Vanillin. Stock solution of vanillin in water with concentration of 50 ppm was prepared. Four solutions with concentration of 5 ppm‚ 1 ppm‚ 0.5 ppm and 0.1 ppm were made from stock solution. UV-Vis spectra of standard solution was recorded at 229
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lived on and are still thriving today due to the techniques he used in his films and the way he created them. He was known for taking the least probable scenarios and turning them into a masterpiece just by playing with light and form or angles. Some of these films are Psycho‚ Perfect Crime‚ The Man Who Knew Too Much and Rear Window. At first it was quite difficult to pinpoint a particular film to choose as he used brilliant techniques in all of them. However‚ I have chosen to talk about Rear Window
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