The Effect of Different Types of Insulation on Heat Retention
The Effect of Different Types of Insulation on Heat Retention Aim I am going to investigate the effect of different types of material on heat retention. "Which of the four materials, cotton, foam, aluminium foil and bubble wrap, is the best insulator?" Hypothesis The four materials tested in this experiment are cotton, foam, aluminium foil, and bubble wrap. Materials that are good insulators will absorb heat slowly and therefore the water inside the cup will stay warm for a longer period of time. Materials vary in their heat conductivity and in their insulation capacity. Foam is 95 percent air so the air molecules slow down the heat transfer from the liquid, so it stays warmer longer than cotton insulation. This leads me to predict that foam would be the best insulator, as it would trap the heat more, which will cause deficient heat lost. Identification of Variables There are three variables I will take in consideration whilst carrying out my investigation. The independent variable will be the types of materials used for insulation, which will be cotton, newspaper, aluminium foil, and black insulator. My control variables would be the temperature of the water, 80° Celsius. The dependent variable in my investigation will be the amount of heat loss. Scientific Theory The different types of energy transfers that will be taking place during this experiment will be
My aim is to investigate which material would be the best for making the base of the pan from.
Science investigation Introduction I am going to heat the ends of the different types of rods so that the heat passes to the Vaseline, which should eventually melt and gradually the pins should fall off. The one that drops the quickest would be the best material for the base of the pan. Aim My aim is to investigate which material would be the best for making the base of the pan from. Research From my research I have found out the factors that will affect my investigation are; the type of material which will be used, the temperature of the flame from the Bunsen burner, temperature of the room, the amount of Vaseline used and the distance of the flame from the material. Apparatus The apparatus that will be used are; a Bunsen burner to heat up the rods, stop clock to time how long it takes for the pins to drop, tripod to put the different type of materials on, heat proof mat to place the tripod on it for safety, Vaseline so the pins stick to the materials and the pins, to find out which material heats up fastest. My prediction My prediction is that Iron will be the best conductor as it is heavier and is also very hard wearing. Iron is a good conductor of heat, slower to heat up and it also retains the heat longer. The main attraction of copper pans is their appearance and the fact that copper is a good conductor of heat. The disadvantages are that they are more
A BETTER APPROACH TO FOOD SAFETY MANAGEMENT IN FOOD AND DAIRY INDUSTRIES
HACCP: A BETTER APPROACH TO FOOD SAFETY MANAGEMENT IN FOOD AND DAIRY INDUSTRIES. Kayode, J.O.1; Azare, B.A.1* and Adeyemo, M.O.1,2 Department of Biological Sciences, University of Abuja, Nigeria 2National Agency for Food and Drug Administration and Control, Abuja, Nigeria ABSTRACT Hazard Analysis and Critical Control Point (HACCP) is a systematic process of analyzing every step of a production operation, looking at each step of the process, determining where hazards can occur (critical control points) and then instituting a system of controls to keep the hazards within critical limits. This paper reviews the twelve tasks in the application of HACCP, integrating the seven HACCP principles and provides the knowledge and background necessary to establish HACCP plans and/or verify the acceptability of existing quality control systems. It reviews food safety issues in Nigeria, recognizing the Standard Operating Procedures (SOPs) which is important in HACCP plan implementation, as the existing quality management system in use in most NAFDAC-registered food and dairy industries in Nigeria and makes recommendations for achieving food safety assurance. Keywords: Assurance, Critical, Control, Hazard, Quality. INTRODUCTION "Hazard Analysis and Critical Control Point," or HACCP (pronounced "hassip"), has become synonymous with food safety. It is a worldwide-recognized systematic
Investigation Report - What are the most effective materials that can be used to block off infrared (IR) signals emitted by a TV remote control?
Investigation Report What are the most effective materials that can be used to block off infrared (IR) signals emitted by a TV remote control? Abstract: When I watch TV, I often wonder how the signal sent by the remote control can travel by an invisible path to reach the receiver some 2 metres away. But what if that invisible path was blocked off using particular materials? Would the signal still reach the receiver? Hypothesis: Transparent materials such as glass and thin, pallid materials such as paper, tissue and linen are the least effective, while solid materials such as wood and metal will be most effective in blocking off weak IR signals emitted by the TV remote. Aim: To test which materials are most effective in blocking off signals emitted by a standard TV remote control. And to determine if thickness of material plays a role. Variables: Independent variable - materials tested Dependent variable - signal blocked or unblocked Controlled variables - remote control (strength of IR signal), TV set (receiver), distance and general location of where the IR signal is emitted, angle of remote, thickness of material, width of material, distance between the front of the remote and the material, button on remote. Risk Assessment: According to internet source: http://home.t-online.de/home/manfred.bromba/indicard/iriexpe.htm * don't look directly into a beam of IR
WILLIAM MORRIS
W I L L I A M M O R R I S William Morris (1834 - 1896) was perhaps the most important British decorative artist of the 19th century. A prolific designer, craftsman and decorator, his work and ideas have had a major influence on the development of modern interior design. William Morris was one of the most influential figures in the Victorian and Edwardian art world. As a young man at Oxford he became involved with the Pre-Raphaelite movements, mixing with such artists as Dante Gabriel Rossetti, William Holman Hunt and Edward Coley Burne-Jones. Always a man of innovation, Morris soon tired of the subject matter and philosophy of the Pre-Raphaelites. His desire for social reform was also an important factor in his artistic growth and he moved on from painting to the creation of textiles, wallpapers, stained glass and highly decorative furniture. He also set up the Kelmscott Press as a medium for his writing and elegant book design. With Edward Burne-Jones, he set in motion the highly influential Arts and Crafts Movement - thereby implementing an incredible change in the vision of British art. William Morris Colours Duck Egg, China Blue, Morris Green, Weld Yellow, Chalk White, Red Ochre and Madder Red. Inspired by the large collection of Morris' work in the Victoria and Albert Museum, these paint shades and their names are evolved from colours he used in many different
An electronics firm wishes to introduce a range of low cost alarms. You have been asked to design and produce a prototype for further development by the firm.
Electronics Folder Problem An electronics firm wishes to introduce a range of low cost alarms. You have been asked to design and produce a prototype for further development by the firm. Possible Projects Brief I have decided to design and make a prototype low cost home burglar alarm. Research into Alarms Analysis of commercial alarms From my research into commercial alarms I have found out the following: * All alarms have more than 1 input. * All alarms sound for a time after they have been triggered. * Most alarms sound for a variable time of between 2 minutes and 20 minutes. * All alarms have a sound output of at least 98dB. * All alarms have either a delay between being switched on and being armed or they can be remotely switched on and off from outside the premises. * The better alarms have a small delay between being triggered and the siren sounding. Task Analysis 1 Task Analysis Detecting Burglars Task Analysis Warning People and making the signal last Task Analysis Getting out of the house and switching the alarm ON Task Analysis Getting into the house without sounding the alarm and switching the alarm OFF Specification My alarm circuit must do the following things: * It must sense burglars entering through the rear door. * It must sense burglars passing down the hallway. * It must sense burglars entering through the front door. * It must
What is the current dietary advice for four-year-old children?
What is the current dietary advice for four-year-old children? The current dietary advice for four year old children is that they should eat a wide variety of foods at each meal so that they get enough vitamins, minerals, protein, fibre, calcium and iron needed to give them energy and to keep their bodies healthy and functioning correctly. They should eat foods from each of these four main food groups: - * Bread, cereals and potatoes * Fruit and vegetables * Meat, fist and alternatives * Milk and milk products * Fatty and sugary foods Meals prepared for children under five should be small in proportion, as they cannot consume as much food as a teenager or an adult. This information comes from the health promotion agency's getting a good start booklet. The first of the four main food groups that I am going to look at is bread, cereals and potatoes. This food group provides us with lots of energy, as the foods in this group are all good sources of carbohydrates. Some of the foods from this group are very good sources in fibre, which will prevent bowl disorder and constipation. Some of the foods in this group are: * Pasta, noodles and rice * All types of bread eg wholemeal, naan bread, wheaten, white * Breakfast cereals eg weetabix, ready brek * Pancakes, scones, crumpets * Mashed, boiled or baked potatoes This type of food is also good as a snack in
Analysis Courseork
Analysis Section "Bin IT" is a newly established company whose purpose is to specialise in educating its customers in the benefits of recycling. Kate Devon is the Chief administrator of the company and does all of the payroll calculations for the pay slips by hand and not only does it take her a long time to do but she often makes mistakes. She has asked me to help her and create a new system that will make the job easier and eliminate their existing problems. I interviewed Kate Devon, the chief administrator to find out about her job, the problems she's having and the user requirements needed. Amy Smith: What are the problems you, as the payslip writer face with the current system? Kate Devon: Well, to start off with it was an alright job to do, I used a calculator to do my calculations and got through the task quite quickly. But after a while I couldn't keep up and the task started to take longer and because I was restricted to time scales I would start to make mistakes. It was such a daunting task to do that I started getting tired throughout the day. Amy Smith: Would you say you would like a new system that is easier? Kate Devon: Yes, after a long hard day my hand gets tired and people often don't understand my writing, they have complained, but there is nothing I can do, I have tried to explain this to them. I would like to see a new system put in place that is
Desk and floor lamp research - aesthetics, cost, safety and function of different lamps on sale.
Aesthetics Adjustable arm and head for easy directing of light. Has a chrome finish and plastic base and glass reflector Energy efficient clip-on light with a flexible neck provides low heat illumination that can reduce eye strain. Made from ceramic and is a design that would fit well into a living room as it is more of an ornament than a lamp A floor lamp with a steel, nickel-plated stem and a square base with a polystyrene plastic shade. Provides light for a workspace but also it acts as a docking system and speakers for your ipod at the same time. Comes in a dark antique rust metal finish and is topped by a Brussels linen natural fabric shade Cost £29.99 good sensible price and matches the quality of the product £64.99 is an expensive price, but is justified by being energy efficient. The lamps price is £40 which is a good price for such a unique lamp. £59.95 is a reasonable price and reflects the quality of the product. £99 is steep for a normal lamp but quite cheap with the docking. £121 expensive but is justified by the quality of the product Client A student or professional to have on a desk, to help looking at documents or suchlike. A young stylish person who doesn't mind spending more to get a good quality product. Someone looking for something different to help add character to their living space. For a young couple who are not that well
'We cannot care enough about Pip to fully sympathise with him.' Do you think this is true?
My Final Logo Design:- Before designing my final logo I thought about what would be important on a logo for a travel company. I found out that most of the top travel company's logos of today are aeroplane orientated. Also a lot are brightly coloured. I carefully chose the font I wanted to use for the 'Corporate Dayz' lettering, I chose 'Wide Latin'. I loaded up Paint and chose two pictures from clipart and copied them onto paint. After I had chosen my pictures I wrote out Corporate Dayz in 'Wide Latin' and changed the colour of the words to red. I then copied two pictures from clipart and pasted them onto 'paint'. I then pieced the whole together and then saved it onto the memory. When I need a logo I copy and paste this logo onto my letterhead. Corey Glendining
