Directions for a Burning Bubbles Science Project

Directions for a Burning Bubbles Science Project Bubbles are fun no matter what, but bubbles you can burn just has that added extra appeal. Heres an easy science project you can do that proves propellants in common products are flammable and allows you to burn some bubbles. Materials for the Burning Bubbles Project Soapy water or bubble solutionSpray can containing a pressurized flammable propellantLighter or match (preferably long-handled)Cup or bowl A lot of the products you use that come in spray cans use a flammable propellant to disperse their product. Examples include hairspray, canned air, spray paint, antiperspirant, and bug spray. Common flammable propellants include various alcohols, propane, n-butane, methyl ethyl ether and dimethyl ether. You know you have a can containing a flammable product by reading the label. It will include a hazard statement warning you that the contents are under pressure and to keep the can away from heat and flame and that the contents are flammable. Some cans use non-flammable carbon dioxide or nitrous oxide as a propellant (whipped cream and cooking sprays), which wont work for this project. Once you have identified a flammable propellant, one fire-related project is to spray the product and ignite the aerosol, creating a sort of flamethrower. This is not particularly safe. Blowing flammable bubbles and igniting them illustrates the same point without the risk of blowing up a pressurized ca n. Blow Bubbles and Burn Them Pour soapy water or bubble solution into a container.Immerse the nozzle of the can in the liquid.Spray the can, forming bubbles.Remove the can from the liquid and set it a safe distance from the container.Ignite the bubbles, preferably using a long-handled lighter. Do you see why it would be a bad plan to smoke while using hairspray? The effect you get depends on the flammable propellant. The flames dont last long enough (at least in my experience) to set off a smoke alarm or melt a plastic container. Safety Warning This is one of those projects which should only be attempted under adult supervision. Do not get carried away and blow a big mass of bubbles. Igniting flammable materials is associated with risk. Use of proper eye and skin protection is advised. Disclaimer: Please be advised that the content provided by our website is for EDUCATIONAL PURPOSES ONLY. Fireworks and the chemicals contained within them are dangerous and should always be handled with care and used with common sense. By using this website you acknowledge that ThoughtCo., its parent About, Inc. (a/k/a Dotdash), and IAC/InterActive Corp. shall have no liability for any damages, injuries, or other legal matters caused by your use of fireworks or the knowledge or application of the information on this website. The providers of this content specifically do not condone using fireworks for disruptive, unsafe, illegal, or destructive purposes. You are responsible for following all applicable laws before using or applying the information provided on this website.

Overview of OLED Technology

Overview of OLED Technology OLED stands for organic light-emitting diode and its cutting edge technology results from many innovations in display monitors, lighting, and more. As the name suggests, OLED technology is the next-generation advance of regular LEDs and LCDs, or liquid crystal displays. LED Displays Closely related LED displays were first introduced to consumers in 2009. LED television sets were much thinner and brighter than their predecessors: plasmas, LCD HDTVs, and, of course, the humongous and outdated CRTs, or cathode-ray tube displays. OLED displays were introduced commercially a year later, and allow for even thinner, brighter, and crisper displays than LED. With OLED technology, completely flexible screens that can fold or roll up are possible. Lighting OLED technology is exciting because it is a viable and functional innovation in lighting. A lot of OLED products are light panels whose large areas diffuse lighting, but the technology lends itself well to different applications like the ability to change shape, colors, and transparency. Other benefits of OLED lighting compared to traditional alternatives includes energy efficiency, and the lack of poisonous mercury. In 2009, Philips became the first company to manufacture an OLED lighting panel called Lumiblade. Philips described the potential of their Lumiblade as thin (less than 2 mm thick) and flat, and with little heat dissipation, Lumiblade can be embedded into most materials with ease. It gives designers almost limitless scope to mold and meld Lumiblade into everyday objects, scenes and surfaces, from chairs and clothing to walls, windows and tabletops. In 2013, Philips and BASF combined efforts to invent a lighted transparent car roof. It will be solar powered, and will turn transparent when switched off. Thats just one of many revolutionary developments possible with such state-of-the-art-tech. Mechanical Functions and Processes In the simplest of terms, OLEDs are made from organic semiconductor materials that emit light when an electrical current is applied. OLEDs works by passing electricity through one or more incredibly thin layers of organic semiconductors. These layers are sandwiched between two charged electrodes–one positive and one negative. The â€Å"sandwich† is placed on a sheet of glass or other transparent material which, in technical terms, is called a â€Å"substrate†. When current is applied to the electrodes, they emit positively and negatively charged holes and electrons. These combine in the middle layer of the sandwich to create a brief, high-energy state called â€Å"excitation†. As this layer returns to its original, stable, â€Å"non-excited† state, the energy flows evenly through the organic film, causing it to emit light. History OLED diode technology was invented by researchers at the Eastman Kodak company in 1987. Chemists Ching W. Tang and Steven Van Slyke were the principal inventors. In June 2001, Van Slyke and Tang received an Industrial Innovation Award from the American Chemical Society for their work with organic light-emitting diodes. Kodak released several of the earliest OLED-equipped products, including the first digital camera with a 2.2-inch OLED display with 512 by 218 pixels, the EasyShare LS633, in 2003. Kodak has since licensed its OLED technology to many companies, and they are still researching OLED light technology, display technology, and other projects. In the early 2000s, researchers at Pacific Northwest National Laboratory and the Department of Energy invented two technologies necessary to make flexible OLEDs. First, Flexible Glass an engineered substrate that provides a flexible surface, and second, a Barix thin film coating that protects a flexible display from harmful air and moisture.

Teaching science to children Essay Example | Topics and Well Written Essays - 4000 words

Teaching science to children - Essay Example As such, it is important that students are taught how to view the world with a scientifically accurate eye, which is why the implementation of science projects in a school’s curriculum is important for the expansion of a student’s knowledge. Different learning tools created in the way of lesson plans have been designed to help students understand some of the natural phenomena around them. These lessons involved the understanding of the spread of bacteria and germs, as well as the fermentation of yeast and its uses in food production and in other industry businesses. The students were able to observe and experiment first-hand how many of these processes are undergone. The results of these experiments not only benefitted the knowledge of the students by allowing them to witness scientific phenomena, but it also allows us to grasp the best ways that students can be taught these methods. 1. Introduction: Science teaches an understanding of the world around us by stimulating a child’s prediction and analysis of natural phenomena. Teaching science involves conducting methods of Investigation to encourage creative thought and to demonstrate how science can have an immense impact on our future and to achieve advanced medical biotechnology, genetic engineering food production and safety, agricultural biotechnology, and treatment of environmental waste. Teaching science also aims to improve children’s verbal and writing skills to become more scientifically literate (N.A. 2009). Effective teaching style requires the adaptation of successful principles and methods by teachers that were used as an assistant for efficient delivery to take place. Prior to setting up teaching methods, the children’s background knowledge and environment should be considered. Teachers should be aware that students have different learning abilities, and as such different learning techniques should be used during lessons to match their different abilities. A less on plan can then be designed. These plans state the specific learning goals of each lesson for teachers to follow in a form that can be carried out in several ways: whole class discussions, explaining, experimentation, demonstration, group work, and assessment of pupils’ work. It also helps learners to achieve deep understanding of the material and to become fascinated and keen to acquire more knowledge about scientific phenomena (Fredericks 2005). The science curriculum is a statement about the selected elements of science for teaching from a wide range of possibilities. National curriculum requires that teaching that includes scientific investigation is required to be delivered through contexts obtained from life processes and living things, â€Å"which involves the statement that micro-organisms are living organisms that are often too small to be seen, and that they may be beneficial [in the breakdown of waste or in making bread] or harmful [in causing disease or in causi ng food to go mouldy] (Stubbs 1999).† Bringing science into school projects was a task that needed to be able to be carried out in schools. The aim of teaching science in schools is to give an overview of the microbial world and to develop children’s skills and knowledge to better understand the micro-organisms subject of science and how it can be modelled in industrial processes. The aim of teaching science expands to raise students’ awareness of the fundamental uses of micro-organisms and their irregular nature, which

Albert Nobbs (2011) Movie Review Example | Topics and Well Written Essays - 750 words

Albert Nobbs (2011) - Movie Review Example Albert worked as a hotel waiter for thirty years during which she exhibited extreme dedication, and was known for her introvert nature. The hotel appointed Joe Mackins for repairing of boilers, who soon went into a relationship with the flirtatious maid Helen Dawes. However, Joe proved to be a drunk and extremely dominating man. Albert then narrates her life story to Hubert Page who is a housepainter and a fellow transvestite. Albert had chosen her present life out of economic needs after she was gang raped at the age of fourteen. However, Albert refrains from revealing her true name since she considers herself as a man. Seeing that Hubert is married and has a wife, Cathleen who is a dressmaker by profession, Albert too dreams of having a life partner. Albert’s objective in life is to open a tobacco shop with her savings and for that she offered Helen to stay with her. In spite of her reluctance, Joe insists Helen to agree since he thought Albert would give her the money that he needed to leave Ireland for America with Helen. During this time, typhoid epidemic broke out in Dublin for which hotel business began to drop thus calling financial problems for Albert. Soon she learns that Cathleen has died of the epidemic. In memory of Cathleen, Albert and Hubert dress up as women wearing the clothes made by Cathleen. During a walk together, although they manage to overcome their initial uneasiness, Albert soon trips and falls which returns her to reality. They then revert to their old lives, i.e. playing the role of men. Immediately after this Albert learns that Helen is pregnant with Joe’s child. In response to Helen’s fear that Joe may abandon her and leave for America, Albert offers to marry her. Later that eveni ng, Helen and Joe get involved in a fight in which Albert intervened and physically attacked Joe. Joe, in a fit of rage, pushes Albert

Homicide Essay Example | Topics and Well Written Essays - 2000 words

Homicide - Essay Example However, Daly and Wilson state ‘we lose the conceptual unity of intention that was the rationale for including attempted murders by defining homicide in this way’ (1988:14). Richards (1999) provides a clearer definition of homicide and refers to it as the interpersonal assaults and other acts directed against another person (e.g. poisoning) that occur outside the context of warfare, which prove fatal. This definition is supported by The Law Commission (TLC) who indicate homicide as ‘the unlawful killing of a human being by another human being’ (2005: 3). Homicide offences include murder, manslaughter and infanticide. In England and Wales, the structure of law concerning homicide centres on two broad offences; murder and manslaughter (TLC, 2005). Murder is classed as the most serious form of homicide, and has traditionally been associated with pre-meditated thought on the part of the perpetrator. However, TLC (2005) states that there doesn’t have to be an intention to kill or even a pre-meditated intention to kill to class a person guilty of committing murder. The Homicide Act (1957) introduced the concept of conviction for manslaughter and a person can be convicted of committing manslaughter rather than murder if they intentionally kill a person as a result of losing self-control through being provoked or if a ‘reasonable person’ would have reacted in the same way. ... nlawful killings whose offender intended to cause harm unlawful killings whose offender realised their actions involved unjustified risk of causing death but went ahead with their actions offender provoked, diminished responsibility or duress Manslaughter Comprises unlawful killings where the offender ; kills through conduct that is gross neglect (involuntary) kills though intending to cause harm (voluntary) How is Homicide Reported by Police Statistics? Richards (1999) claims that homicide is one of the few crimes that really get under-reported, and so homicide rates reasonably provide accurate measures of crime levels. However, it is also important to note that how government data counts homicide rates varies between Scotland and England and Wales. In Scotland for example, a single offence is counted for each act of homicide, regardless of the number of victims or offenders, e.g. Lockerbie in 1988 is closed as one act of homicide, rather than 270. In England and Wales however, each act of homicide is counted as an individual act. Richards (1999) also notes that a homicide case is generally presented in official statistics in the year in which the police record it. This however isn’t always the year in which the crime in committed, or when the accused is brought to trial, or when the suspect is either found guilty or innocent of homicide. During the past 50 years Parliament has barely touched the law of murder (TLC, 2005). The irregularity that exists in the way a person is convicted (as either murder or manslaughter) has resulted in seriously flawed homicide laws, which lack proper structure to convict people appropriately. However, police statistics relating to homicide rates do provide a number of useful information. For example, they let us measure murder and

Substainable Construction Products Essay Example | Topics and Well Written Essays - 1500 words

Substainable Construction Products - Essay Example This can also assist in the restoration and enhancement of the environment (Kats et al 2003). LEED sustainable sites has the responsibility of encouraging the observance of the standards which are the best measures via strategies like using alternative transportation, efficient design for lighting of the site, developing high density sites, managing storm water among other concerns (Clevenger 2008). Many owners have also realized that there are financial advantages of selecting and maintaining sustainable sites particularly tax incentives for developing brown fields and reducing space conditioning by selecting cool roofing material. This is the finest management approach for storm water that makes use of soil, microorganism, and plants for filtering, retaining, and infiltration of storm water runoff from those sites that are developed. Bioretention is a very critical element of low impact development tactic since it is relatively simple, less costly, efficient and aesthetically attractive. Filtrexx growing Media TM is crucial for effective installation of bioretention. This product can be used on practically every site employing a range of design skills. The advantages are that it eases installation, controls pollution, durability, control runoff and establishes vegetation (Clevenger 2008). b) JM Reflective roof: TopGard 4000 This is a multi-use product 100 percent acrylic elastomeric coat used for several substrates like asphalt to be applied on roofing. The product offers an exceptional bleed-blocking characteristic that makes it especially well-suited to coat over asphalt. It has special qualities like wet bonding, elongation and tensile force. It is used as an outstanding reflective outside layer over smooth or granulated plane roofing structures on roofs. The benefits are that it is energy saving, prolongs roof life, acrylic permanence, totally adhered fitting bleed-blocking (Kibert 2008). 3) Water Efficiency LEED implements water efficiency to decrease production of waste water and enhance drinkable water whereas enhancing the home aquifer renewing. It is utilized in two options: option one - is reducing the potable water used for construction of sewage passage by half via use of water conservation fixtures or non-potable water. Or alternatively treating half of the wastewater on the site to tertiary standards: this water can be filtrated or reused on the site (Jones 2008). a) Toto ultra-low-flow water closets These types of toilets are easily cleaned. They utilize unique technology which makes it easy to clean and thus saves water. A research was conducted on their efficiency and it was found out that they bested about 46 models. They are slightly elongated for flow that clearly cleans effectively. TOTO's G max expertise guarantees efficiency, low cost, and low noise (Clevenger 2008). b) Delta 1.8-gpm sensor faucets These faucets are very efficient, they operate in hands free activation mode and they also automatically stop running to conserve water by preventing overflow. Their taps are sensor operated for this efficiency; they are able to save up to about

RELATIONSHIP ANALYSIS PAPER (communication course) Essay

RELATIONSHIP ANALYSIS PAPER (communication course) - Essay Example Increased feedback allows speakers and listeners to gain confidence where messages are communicated with experience and accuracy satisfaction on the communication scaling (Adler, Rosenfeld, and Proctor 58). Other forms of communicators within the interaction base the assessment on the effectiveness of the feedback to the listener while responses take the performance form against comprehension tests. The attentive behaviors and compliance improve on listening to arguments on feedback past listening. Listening physiology plays an essential role in the manner my sister’s listening functions. Auditory and visual are sensory acuities that are based on basics of listening. Deterioration based on age-related issues and sensory mechanisms lead to eventful loss of verbal content and nonverbal dimensions in communication (Pfeiffer and Pfeiffer 87). Listeners are intended receipts of sent messages. In the reception process, listeners employ visual and auditory sensory receptors. The listening processes include hearing sounds while hearing and listening does not have synonymous functions as most people assume. Auditory message reception is a detailed process that involves the intricate mechanism of hearing. Sound should enter the middle ear towards vibrations of the tympanic membrane and later conducted to the inner ear and lastly, to the brain. Problems faced in the hearing mechanism compound receptive processes (Adler, Rosenfeld, and Proctor 121). The neurological make-ups of my sister’s listening are influential factors. Hemispheric specialization research suggests that left part of the brain is more objective, rational, organizing processor and while the right is more emotional and intuitive. Personal hindrances take listeners back to the senders role within communication transactions and reliance on feedback against unfair indication of â€Å"accomplished† listening. Leaders are