Liquid crystal Essays

1. Introduction Nanotechnology has the potential to solve problems related to human civilizations pertaining to both basic needs and aspirations for comfort life. The basic needs of human being are food, drinking water, energy, cloth, shelter, health and clean environment. The aspirations for comfort life are realizing the automation in every field, space travel and expanded lifespan and so on. Due to continuous efforts of scientists and engineers during last 30 years, there is a substantial progress

luster a day after. Also, I put Vaseline to moisten my lips to look so health. The next is to use concealer and foundation cream, which is an organic substance the same color as skin. There are two types of concealer: The first type, water concealer: liquid and cream, suitable for dry skin and cover the large area such as an area under the eye. The second type, a finger or steel concealer: used to hide grain, pimples and facial bruising. I prefer to use steel it is easier to use. It also has three colors

It is true, kids love to play. But, playing all of the time is not at all possible as it can affect their studies, but what if they are enjoying and studying at the same time? It can undoubtedly be said that kids belonging to the present generation are so fortunate to have the interactive learning techniques by their side with an intention to attain the fun and education simultaneously. Screen time has proved to be one of the most interactive ways of learning for children. The screen time of your

Have you ever wondered how fidget spinners could positively affect learning in a school environment? Many people think fidget spinners are useless toys, but some believe there is more to the spinners than that. They can be used for helping kids in schools in ways not many people thinks about. Fidget spinners can replace disruptive distractions, help kids interact with each other, and help them pay attention. First of all, fidget spinners are less disruptive than other ways students fidget. Most

this would just be something for other tests to be based off of. Another importance of this experiment is to show the effects and properties of supersaturation using crystal growth. Background: To be soluble it means an object or substance can be dissolved, this is especially true of sugar when making rock candy. A solution is a liquid mixture comprised of a solute and a solvent. In this case the sugar is the solute and the water is the solvent, together making up the solution needed to make rock

Snowflakes are small and their structure is simple at very low temperatures. At higher temperatures the distinct flakes may be formed from a very large amount of ice crystals - creating a complex star shape and can have a diameter of several inches. (Met Office, 2014) Snowflakes are accretions of several snow crystals. Most snowflakes are less than 1.3 centimetres (0.5 inches) through. Under some conditions, usually needing near-freezing temperatures unstable atmospheric conditions, and light winds

02g of copper oxide and added it to the acid and stirred it whilst doing so, we did that until the liquid turned blue, this proves that the chemicals have mixed together. We then weighed this liquid which will help us determine the percentage yield. We then filtered the liquid off which gave us the amount we obtained. We then left the liquid for a week so that the liquid had time to turn into crystals,

Paragraph 1 Compare and contrast the crystal structures and crystal chemistry of quartz, α-FePO4 and β- FePO4. Crystal structure is defined as the orderly arrangement of atoms, ions or molecules in both liquid and solid states. Quartz has a trigonal crystal system and a six-sided prism with six-sided pyramids at each end. Quartz possesses a macromolecular structure and does not contain isolated ions. The crystal structure of quartz consists of the SiO4 silicon oxygen tetrahedra, where each oxygen

they made of? How did they get here? All of them had researched the structure of the crystals and had developed their own theories. Carbon-based, like many crystalline compounds, and similar in hardness to the diamond. It can be cut evenly to fit pendants and sequins. But the discovery that baffled scientists was that the structure of molecules was attracted to each other so well that when a chipped piece of crystal was reintroduced to the rest of the structure, the piece fused itself back to the main

Introduction: Benzopinacol can be prepared from benzophenone in presence of sun light (photochemically) using isopropanol as the reducing agent in presence of acetic acid. Acetic acid is added to prevent the cleavage of benzopinacol to benzophenone and benzhydrol by the alkali derived from the glass container used for the reaction. Benzopinacol obtained in the first experiment is converted to benzopinacolone by heating under reflux (5 minutes) with glacial acetic acid containing trace amount of iodine

Selecting the item he needed, Sylvester placed them on the counter in the order of their use. Knowing that he would need some hot water, he hung the largest pot he had in the fireplace. After filling the pot with water, he then added some wood to the fire before returning to the table. After mixing the special red dye in a medium glass container, he set it on the table. It is now time to combine the magical ingredients in a beaker. Combining the ingredients they are to be gently shaken not sutured

solute. In this experiment we used 1 gram sample of medium crystals and 1 gram sample of fine crystals. We put the 2 samples into separate beakers and added 40 mL of water to each beaker at the same time. During observations, both fine and medium crystals sank to the bottom of the water. The finer crystals had small bubbles rising to the surface of the liquid and the water (solvent) dissolved more fine crystals (solute) than medium crystals in 10 minutes. In our results we found that the solute with

The strategy recommended would match both external and internal fit that help Ice-Fili to increase its current market share (5%), maximise its long term profits and to achieve a sustainable competitive advantage. To dominate the Russian ice cream market and maintain its market leader position, it has to brand itself as the top historical Russian ice cream producer and strengthen its core product in the impulse segment. Due to little product differentiation, there is low brand loyalty for consumers

Various solids and liquids were immersed in solvents, ranging from water to TTE, in order to observe the solubility of the given solutes in each solvent. Each solute was placed in 3 different test tubes filled with water, ethanol and TTE. In part one of the lab, 2 small crystals of iodine, nonpolar solutes, were added to 5 ml of water, ethanol and TTE. Upon our observation iodine did not dissolve in all three solvents and instead produced a dark reddish-orange colour and magenta colour in ethanol

The phenomenon of freezing point depression has many practical uses. The radiator fluid in an automobile is a mixture of water and ethylene glycol (antifreeze). As a result of freezing point depression, radiators do not freeze in winter (unless it is extremely cold, e.g. −30 to −40 °C (−22 to −40 °F)). Road salting takes advantage of this effect to lower the freezing point of the ice it is placed on. Lowering the freezing point allows the street ice to melt at lower temperatures, preventing the accumulation

where he was good at his job and could make his father happy, but instead he persevered in order to do what he set out to do; see other parts of the world. Towards the middle of Santiago’s journey towards his personal legend, he stumbles upon a crystal shop. He suggests to the owner that there

of the environment affect the growth of crystals in fudge? Hypothesis: If crystallized fudge is cooled under two different temperatures, then the lower temperature will grow bigger crystals than the high temperature, because solubility in cold temperatures is lower. Why fudge was chosen: Crystals form in igneous rocks, and this experiment was chosen to explore the sizes of crystals formed under different conditions. The topic was decided upon because crystals are formed under extreme conditions, and

Everything in the world is made of tiny particles that have different amounts of stickiness, are differently sized and spaced, and have different speeds of motion. Particles are sticky, but have different amounts of stickiness. In the lab, Swab the Deck, I saw the alcohol slowly disappear, because the alcohol particles were sticky to the air particles. In the lab, Drops on a Candle, I watched the oil spread out and leave residue while the water stayed in a dome and left no residue, because oil is

Does it mean, is it related to the latent heat of freezing, or the appearance of the first ice crystal or the solidification of the last bit of liquid water? If you selected one of the above as your answer, how would you observe the time at which that event occurred in a specimen of water? For example, in Fig. 3, how long did it take for the water to freeze? Now, imagine

The Mpemba Effect is the observation that warm water freezes quicker than cold water in certain circumstances. Warm water seems counterintuitive, but ultimately catalyzes the freezing process. In this analogy, the warm water represents disobedience and the freezing process represents social progress. Disobedience has a negative connotation, which contradicts the idea of positive progression, but in many cases, can actually accelerate it. Many commonly misinterpret disobedience as violence, when