...sim=Balloons_and_Buoyancy and click on Run Now. Determine what factors make a hot air balloon or a helium balloon float Student Instructions: 1. Why does a hot air balloon float even though it is so heavy? A hot air balloon still floats because the bouncy force of the hot air is more than the weight of the balloon. 2. What makes balloons float when they are full of air but not float when they are deflated? Balloons float when they are full of air due to the fact that when they are filled with helium gas which causes them to float. When balloons are deflated they don't float because they are not filled with air. 3. Starting with a hot air balloon, figure out how to make the balloon float. What factors affect the balloon floating or sinking? Explain three of these factors and your understanding of why this works as it does. Hot air balloons completely rely on buoyancy to float. Hot air rises. Hot air is less dense than cold air. Heating air causes energy. The hot air causes the balloon to rise above the cooler air and therefore float. 4. Move to the rigid hollow sphere. What does it mean that the sphere is “rigid?” This means that the balloon is not filled with hot air. 5. Play with the parameters of the simulation and get the sphere to float. How is the sphere floating similar to and different from the floating hot air balloon? The sphere without hot air moves faster than the hot air balloon. 6. How will you get the helium balloon to float? Explain how you plan to set...
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...Also, based on the answers the therapist can highlight themes to discuss with the family, and hopefully be able to set goals for therapy. There is no additional training for a mental health professional to conduct this activity. Contraindications of Activity This activity should not be used with children that have disabilities that restrict them from meeting the procedures and requirements of the game. Not for children with severe mental or physical disabilities, only for children of the developmental stages required. The child has to have normal language development. Failing to follow these contraindications can cause a child to become overwhelmed, frustrated, reduce self-esteem and can encourage self doubt; therefore, causing more harm than...
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...Da Vinci discovered and analyzed several of the basic principles of aerodynamics and physics then applied these principles to his designs. He wrote prolifically, and if his written works were not lost for centuries, his influence on other inventors would be even greater than it is. His writings included hundreds of sketches that illustrated his observations of flight in nature and the inventions he designed. He studied bird flight for many years, analyzing it rationally and anticipating many principles of aerodynamics. The structure of wings, carrying surfaces, and landing gear; and even devices for directional control. His early designs were man-powered types including ornithopters, fixed winged gliders, parachutes, and rotorcraft. He came to realize the impracticality of this and later turned to controlled gliding flight, also sketching some designs powered by a spring. In 1488, he drew a hang glider design in which the inner parts of the wings are fixed, and some control surfaces are provided towards the tips...
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...corresponds to the difference in peripheral speeds of the spindle and traveller. The difference in speed should correspond to length delivered at the front rollers. Since traveller does not have a drive on its own but is dragged along behind by the spindle. High contact pressure (upto 35 N/square mm)is generated between the ring and the traveller during winding, mainly due to centrifugal force. This pressure leads to generation of heat. Low mass of the traveller does not permit dissipation of the generated heat in the short time available. As a result the operating speed of the traveller is limited. Heat produced when by the ringtraveller is around 300 degree celcius. This has to be dissipated in milliseconds by traveller into the air. Parts of a traveller: Height of bow: It should be as low as possible for stable running of traveller. It should also have sufficient yarn pasage. Yarn passage: According to count spun the traveller profile to be selected with required yarn passage. Toe gap : This will vary according to traveller number and flange width of...
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...INDIAN INSTITUTE OF INFORMATION TECHNOLOGY DESIGN AND MANUFACTURING (IIITD&M) KANCHEEPURAM GARBAGE SORTER Submitted by R Subhashini IIITDM KANCHEEPURAM JAN-MAY 2011 1|Page INDEX Chapter no Contents Pg No Abstract 4 1 Mission statement 5 2 QFD 7 3 Existing products 9 4 Concept generation and selection 12 Phase 1 Segregating lighter and heavier material 13 Phase 2 Segregating sand from heavier materials 15 Phase 3 Crusher 16 Phase 4 Metal detector 14 Phase 5 Segregating plastics 20 Phase 6 Segregating glass 28 5 Pro e models 31 6 Specifications 33 7 Block diagrams 35 8 PLM 37 9 Conclusion 42 2|Page References 43 List of figures 1 Quality function deployment 8 2 Manual sorter 9 3 Garbage sorter in Malaysia 10 4 Separation of metal by eddy current technique 16 5 Identification of plastics based on wavelength 20 6 (a) Plastic identification by spectroscope 22 (b) Plastic identification by laser diode 22 7 Identification of plastics 24 8 Separation of glass 25 9 Block diagram of garbage sorter 31 3|Page Abstract In recent years, environmental issues have drawn more attention and a wide Variety of regulations and measures are being enforced all over the world. Waste disposal is one of the biggest concerns for...
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...| | | | Exploring the Effects of Enzymes on Fat Using Phenol RedVeronica ChengSBI 3U0Turner05 December 2014 | | Introduction Enzymes are proteins which help break down chemical substances such as other proteins, carbohydrates or fats that are necessary for life (Novozymes, 2014). In this experiment, the effects of water, pancreatic juice, and trypsin solutions were observed on milk. The use of the phenol red indicator helps detect the pH level. The lower pH level will cause the colour to shift from red to orange, and possibly to yellow; if no reaction takes place, then colour will stay the same red/ pink hue. Question Has each of the enzymes broken down the perspective substrate (fat molecules) in milk? Hypothesis The human digestive tract has a complex process of digesting and absorbing nutrients. The pancreas is in accessory organ that produces pancreatic juices, which contains numerous enzymes that chemically digest carbohydrates, lipids, and proteins (Dunlop et al, 2010). Because the enzymes of the pancreatic fluid can break down lipids, with this one can assume that the test tube which contains pancreatic juices will have more of a reaction. Either test tube B, C, or D will have the greatest outcome because they contain the enzymes (lipase, trypsin) to break down the fat molecules of the milk. Materials 4 test tubesTest tube rack500mL beakerRetort stand | Milk solutionPancreatic juice solutionHot plateGlass rod | Phenol red indicatorTrypsin solutionThermometer...
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...related to gravity. In order to make the plane fly better it stands to reason that it needs to be lighter so that the pull of gravity will not be as great. Velocity is the initial push the plane gets when it is released. The greater push it is given the longer it will stay in flight. Velocity is directly affected by drag, which is the friction in the air that it is flying through. The lift is what keeps the plane flying and is created when flow is present. Flow is a current of air that is either flowing with or against the airplane, and this direction affects how far the airplane will fly (www.exampleessays.com, 2012). This paper is relevant to my experiment because in order to create a proper testing area, it is important to know what effects the environment will have on the plane. In addition to that it puts the question as to would it really matter what kind of paper was used for the plane? Would that slight difference in weight of varying types of paper really make a difference in a controlled environment on how far the paper airplane would fly? My hope is to find an answer to that question with my experiment. b. Physics of Paper Airplanes (www.123helpme.com essay) This paper also covers what affects the paper airplanes flight length. In this paper, lift is the main topic discussed and goes in depth to provide information on how lift works. It also covers air drag, density, and pressure. There are formulas to determine exactly what amount of drag, density...
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...on the Gateway NV57H26U, was excellent. It's a 15.6-inch laptop with decent battery life that costs just $450. It also has an HDMI port for connecting to an HDTV for high-definition video streaming. If you need a laptop mainly for tasks such as word processing, Web browsing, and e-mail, even better deals emerge. Our ratings include a few 15.6-inch laptops for under $400. The Gateway NV55C49U ($350), Dell Inspiron I15R-526MRB ($380), and HP G62-373DX ($380) are all recommended models with good or very good performance; all three models were fast for productivity tasks. | | Apple MacBook Air 11.6" | Lighter and cheaper models are comingIf you're shopping for a laptop, be on the lookout for ultrabooks, new laptops that are supposed to be thinner, lighter, and less expensive than most laptops. Thirteen-inch ultrabooks will be no thicker than 0.7 inch, about 30 percent thinner than...
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...Sealed Air Case Comments Sealed air case is a comprehensive case that captures many issues that we have discussed in the marketing course. It is also one of the best selling marketing cases and I think for some very good reasons. Here are my comments on the case questions. Question 2: Sealed Air created value to its customers by building high performance (technical) product quality in its coated bubbles and by educating the customers about the benefits of coated bubbles through the educational efforts of its salesforce and its brochures. Sealed Air’s salesforce also used “consultative sales approach” and provided problem solving advice to the customers. However, there are also indications that the company may be providing too high performance(technical) quality at least for some applications. The company created value for its distributors by the strength of its brand equity, the strong demand for its products and its helpful salesforce. The company also used selective distribution policy which meant less competition among distributors and thus this policy preserved the distributors’ profit margins. Question 3: There are several possibilities here. The important ones (not counting no response) are: • Spend more resources in educating customers about the benefits of bubbles • Launch uncoated bubbles • Cut prices of the products most directly affected by the uncoated bubbles • Provide additional services to the coated customers to offset...
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...Brussel-Bruxelles Charleroi Gent Hasselt Leuven Liège Liège Science Park Rue du Bois Saint-Jean 12 BE-4102 Seraing tél. : +32 4 361 87 00 fax : +32 4 361 87 02 info@sirris.be www.sirris.be Nanotechnologies and their applications Article 3 F. Monfort-Windels, J. Lecomte January 2008- V. 2 Toute représentation ou reproduction, intégrale ou partielle, faite sans le consentement de l’auteur, ou de ses ayants droit, ou ayants cause, est illicite et constituerait une contrefaçon sanctionnée. Table of contents Table of contents ..............................................................................................21 Introduction ...........................................................................................................5 Nanos and autos: a running business! .........................................................7 Introduction The articles gathered in this booklet have been published in the series “Growing with nanos!” in the Belgian magazine “PME/KMO. They are reproduced here with the kind agreement of the editor and the authors. Under the “Eureka” label, the European program MINATUSE (Micro and Nano technology Use by SMEs) aims to facilitate the integration of micro- and nanotechnologies within SMEs and to improve their participation in European projects by creating a network of assistance and information. The consortium is made up of 10 core partners, from 7 different European countries, assisted by 10 to 12 satellite members, creating...
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...Yee, Raffaelle Lemarc T. ENGLCOM C44 11350288 Entry # 4 “As light as a feather” (1) Apple. Co Company had recently launched their new and improved product the “iPad Air”. (2) Apple has unveiled their new slimmed down version of the iPad tablet but will charge customers up to 739 euros. As always with Apple, expectations on systematic breakthrough hardware innovations are irrational. Apple is good at inventing new products like iPod, iPhone and iPad and at maximizing profitability of its product range over time through software innovations and clever marketing. Today's new range of products from iPad Air, iPad Mini 2 and new line of MacBook computers are great additions to the Apple product portfolio just in time for the holiday season. They will maintain Apple's premium positioning in the increasingly competitive tablet market. Apple is increasingly offering free content, services like iLife, iWork, iPhoto, iMovie and etc. Marketers need to wake up to these new opportunities by differentiating their tablet strategy. Apple's iPad Air is beautifully light, so much so you can handle it with one hand. To promote it they launched a commercial about it, called “Your verse”. (3) Apple wanted consumers to know that the iPad is an inspirational device, which becomes a tool to create something that would enrich your life experience as a whole. (4) The ad evokes emotions that mean to inspire and take pride in one's life. It focused on the capabilities of the iPad as a...
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...It is found in very tiny traces in both the Earth's atmosphere and the Earth's crust. It can be produced and extracted by fractional distillation from air. The first step in fractional distillation of air is to change a container of air to a liquid. The liquid air is then allowed to warm up. As the air warms up than each element in air changes from a liquid back to a gas at a different temperature. The portion of air that changes back to a gas at a certain temperature is neon. Health effects of Neon Neon may have some issues when exposed. It can cause some damage to the human bodies depending on how exposed it is. If this gas is inhaled, it can result of dizziness, nausea, vomiting, and loss of conscious and even death. Death can happen from confusion and unawareness or loss of conscious. At low oxygen concentrations, unawareness and unconsciousness and death can happen in a matter of seconds without caution. Also if the liquid neon makes contact with skin, you can get frostbite on the skin that was exposed to it and your...
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...regulations that are imposed by a foreign government within a market that Bombardier operates in can pose a negative effect on the firm’s revenues, such as pricing restrictions or increased taxes. International relations between the Canadian federal government and foreign governments within the markets that Bombardier operates in can pose a threat to the firm’s revenues. For example, if relations between Canada and China turn sour, Chinese state-owned airlines may opt to purchase aircrafts and trains from a non-Canadian manufacturer, as a result. Government intervention could perhaps have either a positive or negative effect on Bombardier’s global operations. For example, if the Chinese government were to increase spending on domestic air travel, this would lead to a greater demand for aircraft, which could potentially lead an increase in sales for Bombardier in the Chinese market. The economic risk that Bombardier faces is due to several factors. Firstly, the economic policy that a foreign or domestic government initiatives in a market where Bombardier operates in could have a positive or negative effect on the firm. For example, if a domestic or foreign government decides to slash subsidies for national airlines, this could potentially...
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...was formed about 4.5 billion years ago, after the collapse of the super massive gaseous body. As time moved on, the earth cooled down and is still cooling, as of today. As a result of the cooling process, denser materials like iron and sulfur sank to the inside of the earth; whereas, lighter materials like silicates and water floated near the earth's surface. Coming to the topic of our discussion, our planet earth comprises several layers. Starting from the surface, there are four main layers; namely, the crust, the mantle, the outer core, and the inner core. The pressure and temperature increase tremendously when one goes from the outer layers to the inner layers. Let's take a look at each of them individually. The Crust The crust or the lithosphere is the outermost layer of the earth made up of silicate rock materials. It makes up only about one percent of the earth and is the thinnest layer in comparison to the remaining three layers. Most earthquakes occur in the crust, and the average recorded temperature is 870 °C. The thickness and the composition of the earth's crust vary in the land and the ocean. For example; the continental crust is about 32 kilometers thick and composed of lighter materials like granite, quartz, and feldspar. Whereas, the oceanic crust measures about 10 kilometers and is mostly made up of basalt. The Mantle The mantle, the largest layer of the earth, is made up of iron, aluminum, calcium, magnesium, silicone, and oxygen. In fact, most of the...
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...Introduction The article Big Fans Push Air Around, Energy Bills Down written by, Trever Hockensmith discusses how highly efficient large-width fans can reduce consumer energy bills. By using these fans you get better temperature stability throughout a large space, while saving money on energy bills. The different seasons cause energy rates to increase and decrease consumers are looking for more and more ways to stabilize their energy bill. How they save money The big fans will save consumers money by the fan size and the fans unique airfoils, however the speed of these fans are not fast. The fans require minimal electrical input to run. Some consumers reported saving 25% or more on their energy bills, with these fans steady mixing air throughout the space; this can maintain the same temperature control with less effort resulting in a reduction of operating cost. These large fans reduce the cost because temperature gauge do not have to be so low these fans can work at a steady temperature. How they work Big fans work in more than one way. One of the ways these fan work is by slowly mixing air throughout large spaces creating a consistent temperature control. Another way is desertification solution. Stratification occurs because hot air is lighter than cooler air and it cause the hot air to rise to the ceiling. By desertification these large fans mix the air and send the warm air down the rafters, resulting in the ability of these fans to normalize the temperature...
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