...Tonya Lewis Professor Neissner English 100 12 February 2015 How to Carve a Pumpkin! Ah, Halloween…it is that wonderful time of year when everyone in the neighborhood comes together to adopt new identities, gorge on free candy, and frighten small children. Littering their yards with cheap Styrofoam gravestones. There is nothing more representative of that crisp autumn night than the sight of a plump Pumpkin grinning merrily on one’s front stoop? People get very creative when carving pumpkins some people choose not to carve them but paint them. No one is born wise in the ways of goo and knives. These are learned skills. With this handy guide, a person should gain the ability to carve a wonderful looking pumpkin. To carve a pumpkin a person needs to pick out the one he or she chooses, clean all the goop and seeds out of it, and then carve and display it. First of all, the size, and shape of the pumpkin are very important. Be sure to choose the right size pumpkin to go along with whatever design they wish to create. People will be going to the grocery store or the pumpkin patch to find a pumpkin suitable for a Jack-O-Lantern makeover. One of my favorite memories as a child was going to the pumpkin patch and I would run through the fields looking for the perfect one along with my siblings. Keep in mind that the bigger the pumpkin, the longer it will take to clean it out. So choose a pumpkin that is between 12 and...
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...Pumpkin Genocide Every year around Halloween the act of carving pumpkins into jack-o-lanterns always seems like a perfect idea, doesn’t it? For you, maybe, but for a pumpkin like me it hits close to home. If you could put yourself into my shoes, (if I could wear shoes) Halloween would be a dreaded time for you and your family. Humans snatching the innocent neighbors, siblings, cousins, or even parents and children of pumpkins from their home to poke holes in them? Horrible. Carving pumpkins is not right; children are taking the lives of pumpkins all over the world for one night of pleasure and most them don’t even know why. Do you know what the Holocaust is? It was a mass killing of all the Jewish people by the Germans in the late 1930’s and it went on for almost a decade. It sounds terrible and horrific, right? Think about all the pumpkins being cut open and placed on front porches for Halloween every year. You’re resembling a nazi murderer every Halloween and do you really want that on your conscience? Pumpkins are being killed for Halloween just because they’re pumpkins; it’s not our fault. It seems like children these days obtain pleasure from poking holes in pumpkins and spilling out our guts just to fill us with a candle. These children are psychotic, arsonistic, crazy, and just disgusting. My family’s guts stuck in your fingers, and you’re laughing? It makes me sick. Kids say, “pumpkins are going to rot and die anyway!” but so are they so why not cut up children...
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...U.S. is the second largest importer of base metals after China (Indexmundi.com, 2013). It is the third largest exporter of base metals after China and Germany (Indexmundi.com, 2013). We can make the assumption that this makes U.S. a net importer of base metals. Base metals are mainly used as (a) input by manufactures producing consumer goods and (b) for infrastructure projects. They themselves are not demanded directly by consumers. If global prices of base metals were to go up, in theory, the U.S. will first see an impact on the "input" side of the economy (figure 7). Production costs will go up and producers will pass this one to the end consumer (P1 to P2). Raw material price increase will shock the supply to shift left (AS1 to AS2) and negative output gap increases (Y1-Y* to Y2-Y*). With increased prices, aggregate demand will go down. The AD curve will shift down (AD1 to AD2). This will result in a fall of real GDP, increase in the negative output gap (Y3-Y*) and prices may fall somewhat to P3. If there is no supply side change, typically, increases in the negative output gap will cause inflation to go down. The only time inflation increases with increasing negative output gap is when the AS curve shifts left and AD shifts down as well. To substantiate this, the following data has been presented as below, with main emphasis in the 2007-2008 periods: 1. Figure 8a (Research.stlouisfed.org, 2013 and Databank.worldbank.org, 2013) shows that from around 2008 the U...
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...Hace su aparición durante el Siglo VIII que recoge la tradición de los pueblos sirio-persas, aunque introduce un aplicación, del esmalte blanco (mal llamado barniz blanco opaco), empleando dióxido de estaño. La característica más sobresaliente de la cerámica árabe, se puede concretar en que toda ella presenta un reflejo metálico, el cual se conseguía mediante una mezcla de cinabrio, sulfato de cobre, óxido de hiero, azufre y plata, actuando, en ocasiones el vinagre como disolvente. Esta aplicación siempre se cocía a más baja temperatura que el esmalte de base compuesto por: sulfuro de plomo, dióxido de estaño, sílice y arena con detalles en azul cobalto. Una característica de la cerámica primitiva es que es una monococción. Las formas de las vasijas de uso diario eran sencillas y estaban decoradas, principalmente, con motivos geométricos. Los colores predominantes son, marrones-violáceos, conseguidos a partir del óxido de manganeso y los verdes, con el óxido de cobre. También se usaban como elemento decorativo las incisiones y perforaciones. El mayor impulso se fraguó en la época del califato de Córdoba. Aplicaron el barniz plúmbeo o vidriado, al mismo tiempo que lo coloreaban usando la mezcla de óxidos. Se inicia la técnica de la "cuerda seca", que consiste en aplicar unas finas líneas de materia grasa con el fin de que no se mezclen colores colindantes. La fabricación de ladrillos también experimento un gran avance. Los centros más importantes de producción cerámica...
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...into the sediments. For each of the three lakes, sediment samples are taken from ten different locations within each of the lakes. The sediment samples are examined for five particular metals. These are Nickel (Ni), Copper (Cu), Zinc (Zn), Arsenic (As) and Lead (Pb). The purpose of this report is to find out what the level of each metal contaminant in each of the lakes and compare the level against Australian and New Zealand Guidelines for Fresh and Marine Water Quality 2000 Volume 1 (ANZECC, 2000). Also to find the possible source of each metal tested. Results Table 1. Metals concentration in sediments from Knighton Lake, University of Waikato, 2000 | Ni | Cu | Zn | As | Pb | minimum (ppm) | 8 | 39 | 416 | 15 | 40 | Maximum (ppm) | 13 | 79 | 1515 | 25 | 170 | Mean (ppm) | 11 | 62 | 892 | 21. | 88 | standard Deviation | 1.65 | 12.32 | 317.93 | 3.27 | 44.23 | | | | | | | The Knighton Lake results when compared against the guidelines showed that the concentration of nickel and copper are below the trigger value and therefore are at an acceptable level. The results for the arsenic and lead are just above the trigger level. The zinc level however is at a very high level, its 484.8 ppm higher than the ISQH-High value in the ANZECC, 2000. Table 2. Metals concentration in sediments from Oranga Lake, University of Waikato, 2000 | Ni | Cu | Zn | As | Pb | minimum (ppm) | 10 | 68 | 1097 | 14 | 17 | Maximum (ppm) | 17 | 134 | 1895 | 29...
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...Science study guide 1 Q. Describe the difference between an element and a compound? A compound is a substance that made two or more different kinds of elements. A element is a basic substance that cannot be broken into a simpler substance by chemical 2 Q. Give an example of an element? Hydrogen 3 Q. Give an example of a compound? H20= water 4 Q. List all of the elements in the following substances? a. CaCO3: Calcium, Carbon, Oxygen b. Na(OH2)4: Oxygen, hydrogen, 5. In the substances listed above, how many atoms are in each? a. 3 b. 3 6. What is an example of a chemical reaction? 7. What is an example of a physical reaction? 8. Is aluminum (Al) a solid, liquid, or a gas? Solid 9. Is magnesium (Mg) a metal non-metal, or metalloid? Metal 10. Describe the difference between compression, contraction, and expansion? Expansion is an increase of volume due to increases kinetic energy of particles. Contraction is a decrease of volume due to decreased kinetic energy of particles. Compression is the decrease of gas volume as a result of applied force. Michelle mixed 100mL of water at 35 C with 100mL of water at 85 C. 11. What is the final temperature of water? T1+T2 85+35 = 120 =60 C 2 2 2 12. What is the final volume? 100 +100 200mL 13. How much heat energy transferred from the hot water? Cal= m* (triangle) T (Triangle) T= Tf- Ti 100*-25 cal=-2500 60-85= -25 14. How many heat energy transferred from the hot cold water Cal= m*(triangle)...
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...research about BHP Billiton, relevant Australia export policy and the South Africa. Secondly, the group leader will select the useful information to decide export production, location and form of the expansion. Finally, all group members start to analyse and discuss some special strategies of expansion. Stage 1 | Collector(Qinghui Li) | Collect relevant information and data | 1 week | Stage 2 | Leader(Tong Lu) | Disposal useful information and allocate task for all people | 1 week | Stage 3 | All members | Start to the report | 2 weeks | The aim of assignment is making strategies to expand BHP Billiton’s South Africa market. And we choose export aluminium to South Africa. The reason is that Aluminum is a widely used non-ferrous metal with demand driven by end use consumption in transportation, packaging, construction and household items. Meanwhile, South Africa is developing country and will need lots of aluminum to construct infrastructure. We can provide information about markets and industry trends in particular countries or regions, to assist in the development of investment plans, strategies or objectives. * We can make introductions to potential international partners, buyers and other in-market contacts. * We can supply referrals to service providers who can give you specialist advice, such as lawyers, business advisors and investment promotion agencies. * We can facilitate access to international governments and other relevant overseas decision-makers...
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...Derek Debenham IS 4410 November 7, 2012 Tech article 4 A lab at MIT has taken inspiration from the humble earthworm for a new technology that could have huge applications in business and society in general. They have created a robot called “Meshworm” that looks like a writhing earthworm. The meshworm has a very simple design that is based on the centuries old principle that different metals expand at different rates when heated. A coil of nickel-titanium wire surrounds the Meshworm’s internal workings like a slinky, and the robot can apply current to create heat and deform the coil in multiple body segments. This allows the “wormbot” to move just like an earthworm. The meshworm can only travel a few millimeters per second but nothing seems to be able to slow it down. Researchers have bashed t with hammers, bent it, kicked it, and even doused it with water, all to no avail. Although it seems like a very small invention, the meshworm has caught the attention of everyone from Johns Hopkins to DARPA. DARPA is the US military’s advanced research arm, and it has expressed an interest in meshworm for reconnaissance and surveillance. The durable nickel-titanium design appeals to the military, and because it is so small it could go unnoticed while it wiggles through keyholes or lays invisible in any crack or crevasse. The Meshworm could have a huge impact on the medical industry. Medical engineers are already imagining the tenacious little robot navigating intestinal...
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...This page is a detail introduction about soybean oil press machine (http://www.oil-processing.com/PRODUCTS/Oil-Pressing-Machine/Soybean-Oil-Pressing-Machine.html) setting up steps. If you are interested in it and you plant to start a soybean oil mill plant, please read on. 1• Cut 1.75-inch metal tubing into two 24.5-inch pieces and one 6.5-inch piece. A carbide saw blade is essential to cut metal; these are available for whatever type of powered or unpowered saw you use to cut the tubing. • 2 Cut a 5.5-inch piece of flat steel bar and two 8-inch pieces of angle iron. The bar will serve as the top crossbar in your frame while the angle irons will join the frame to a wooden base. 3• Stand all three tubes on their ends, with the long tubes 5.5 inches apart. Place the short tube in between them and use an arc welder to weld the steel crossbar at their top ends, and the angle iron pieces on both sides of their bottom ends. This will make a rectangular metal frame with the short pipe in the middle of one short side. • 4 File or grind any rough edges from your frame, then paint it. The paint will dampen down any shavings. Once painted, it can be attached to a wooden base by passing screws through the holes in the angle iron piece. • 5 Make the press canister by welding a circular piece cut from your plate steel onto one end of a wide steel tube. Drill holes through the outside of the canister and file down any rough edges. • 6 Form the press piston by cutting another...
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...equal to that absorbed. The emission is proportional to the number of excited atoms, which is proportional to the total number of atoms in the flame i.e. the sample concentration When a metallic salt solution is aspirated into path of flame, following events takes place; 1) Vaporization: The solvent is vaporized leaving particles of solid salt. 2) Atomization : The salt is vaporized and converted into free neutral gaseous atoms or radicals 3) Excitation: Some of these atoms are excited by the thermal energy of the flame to higher energy levels.The various events are as follows, Sample Solution Fine Mist M+ X Solid Particles MX M+ X Ground State gaseous atoms Excited Gaseous Metal atoms Gaseous Atoms M(g)+ X(g) Gaseous Molecules MX The excited metal atoms are unstable at higher energy level, and quickly returns to lower energy state, while coming to lower energy they emit light of their own characteristic wavelength. The measurement emitted photons (light) forms the basis of flame photometry. The colour of the flame tells us which element is present (qualitative analysis) and intensity of emitted radiation is directly proportional to concentration of metallic element present in the sample. If E1 and E2 are the energy of lower and higher levels, the radiation emitted during the jump is given by the equation E2-E1 = hV ………….(1) Where h = Planks constant. And V the frequency of radiation. …………….(2) But V = C/ Lambda E2-E1 =...
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... Prepared by M. Hooper & P. Hooper. March 2005 The following materials have been authorised for use by students in this context, by Johnson Matthey. Some data is not current, and some is adapted to give a working document to allow completion of the assignment, To complete the assignment students must have access to detailed information about a company. This is often difficult to obtain, and the following information will provide exemplar material for the completion of the IVA. The information is based on the British Company – Johnson Matthey, one of the leading speciality chemicals companies in the world specialising in Catalysts, Precious Metals and Speciality chemicals. Johnson Matthey is a large multi-national company. There is a lot of information available on the various web-sites. The website reflect the divisional nature of the company. These notes will summarise the company structure, provide a guide to focus the students attention through the various divisions to the area of interest. The full company’s website is: http://www.matthey.com Links can be followed to the 'Catalysts' division website at: http://www.jmcatalysts.com then, to the 'Process Catalysts and Technologies'...
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...Chemistry behind Fireworks Did you know that when you see a commercial fireworks display you are looking at chemistry in action. You may have asked yourself “I wonder what is going on to make all those pretty colors and patterns” It is controlled chaos!! I tell you. Let us break this down to the basic we will start with a typical shell. Starting at the bottom we have a lifting charge which contains good ole black powder. The lifting charge gets the party started by creating an explosion after it is ingnited by the fuse. An explosion occurs which produces hot rapidly expanding gases . This is an example of the “Law of Volumes” which is an experimental gas law which describes how gases tend to expand when heated. Since all the kenetic energy is contained in a tube the shell has no place to go but up. This is Newton’s third law in action which states (in laymans terms) “for every action there is an opposite and equal reaction”. The next two stages in the process happen almost simultaniously the bursting charge, explodes out ward dispersing the pellets or stars which give us our colors and patterns. This happens when the ariel shell is at the apex of its climb via a time delay fuse. Chemical Agents Oxidizer, what is an oxidizer? The word "burning" describes the oxidation of a fuel in air. A campfire, for instance, uses oxygen from the air to turn wood (cellulose) into steam (H2O) and carbon dioxide (CO2), among other things. So why do fireworks need an oxidizer...
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...(626)443-8921 Experienced metal sorters and 10 scales to properly and efficiently weigh metals. Our large purchase volume allows us to be one of the few direct mill and foundry suppliers in the Southern California area. P&T Metals offers efficient professional industrial and commercial pickup service and provides all types of scrap metal storage containers, including roll off bins to our customers at no charge. With 45 years in the scrap recycling business. ALUMINUM Aluminum Clips & Solids Aluminum Turnings Extruded Aluminum | Painted Aluminum Cast Aluminum Aluminum Litho Plates | Aluminum Wheels Aluminum Radiators Aluminum Auto Part | INSULATED WIRE Power Cable House Wire Communication Wire | Romex Computer Wire C.A.T.V. Cable | Aluminum Wire Lead Wire | HIGH TEMP ALLOYS Alnico Hastalloy Haynes Inconel Invar Kovar | L-605 Mallory Maraging Molybdenum Monel Nickel | Rene Stellite Titanium Tungsten Alloys Tungsten Carbide Waspalloy | COPPER Bare Wire Burnt Wire Tubing | Motor Windings Sheet & Plate Turnings/Chips | Radiators Castings/Forgings | BRASS Yellow Brass Plumbing Brass Red Brass | Foundry Brass Clips Brass Turnings | Brass Radiators All types of Bronze | Sun-Lite Metals, Inc.2210 East 85th...
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...Trabajo en caliente Deformación a temperaturas por encima de la temperatura de recristalizacion*. El metal de trabajo se suaviza conforme la temperatura aumenta. *Aproximadamente la mitad de su punto de fusión en escala absoluta. Ventajas * La ventaja más significativa del trabajo en caliente es la capacidad de producir deformaciones plásticas sustanciales del metal. * La ductilidad del metal se incrementa significativamente. * La forma de la parte de trabajo se puede alterar significativamente se requiere menor potencia para deformar el metal. * Los metales que usualmente se fracturan en el trabajo en frío, pueden formarse en caliente * las propiedades de resistencia son generalmente isotrópicas* *Material que posee las mismas propiedades físicas en todas las direcciones Desventajas * Precisión dimensional más baja * Mayores requerimientos de energía (térmica para calentar la pieza del trabajo) * Oxidación de la superficie de trabajo * Menor duración de vida de la herramienta Trabajo en frio Formado de metales que se realiza a temperatura ambiente o ligeramente arriba. Ventajas * Proporciona mejor precisión(tolerancias más estrechas) * Mejora el acabado de la superficie * El endurecimiento por deformación aumenta la resistencia y dureza * Brinda la oportunidad de tener propiedades direccionales * Se ahorran costos * Mayores velocidades de producción Desventajas * Mayor potencia para desempeñar...
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...What’s Better Silicone or Tin Bakeware? It’s difficult to answer. However most recipes and heat requirements are designed for metal with paper inserts. Heat transfer in metal can vary. Some recipes list higher temps and time for non-stick pans vs older metal cupcakes which are darker in color after use. Silicone is still relatively new for baking. When baking with a material that does not retain and conduct heat, you will indeed need to make adjustments. You might have to increase both the time and the temperature by slight amounts. In tin Bakeware you can basically guarantee that it is going to be safe. Because it has been aware for a about 200 years. In that time it has gotten better but everything does eventually. Silicone have a few hazards such as: Lower quality silicone coatings contain filler that may be hazardous- if any white shows through when you twist your silicone bakeware, there are probably fillers. Oils- which are very powerful and toxic, may “migrate from the material. Many silicone baking mats are actually made of fibreglass covered on both sides with silicone. The bottom line on safety is: check your manufacturer for other materials possible contaminating your silicone bakeware. Treat it well- no cutting on those baking mats! If you want to be very conservative, skip the silicone and stick with glass, cast iron, or stainless steel for cooking and baking and unbleached parchment paper if you need something flexible. The pro’s and cons of silicone. Pro’s-...
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