How to Make Ice Cream in a Bag (No Freezer Needed)

How to Make Ice Cream in a Bag (No Freezer Needed) You can make ice cream in a plastic bag as a fun science project. The best part is you dont need an ice cream maker or even a freezer. This is a fun and tasty food science project that explores freezing point depression. Materials 1/4 cup sugar1/2 cup milk1/2 cup whipping cream (heavy cream)1/4 teaspoon vanilla or vanilla flavoring (vanillin)1 (quart) zipper-top baggie1 (gallon zipper-top baggie2 cups iceThermometer1/2 to 3/4 cup sodium chloride (NaCl) as table salt or rock saltMeasuring cups and spoonsCups and spoons for eating your treat! Procedure Add 1/4 cup sugar, 1/2 cup milk, 1/2 cup whipping cream, and 1/4 teaspoon vanilla to the quart zipper  bag. Seal the bag securely.Put 2 cups of ice into the gallon plastic  bag.Use a thermometer to measure and record the temperature of the ice in the gallon bag.Add 1/2 to 3/4 cup salt (sodium chloride) to the bag of ice.Place the sealed quart bag inside the gallon bag of ice and salt. Seal the gallon bag securely.Gently rock the gallon bag from side to side. Its best to hold it by the top seal or to have gloves or a cloth between the bag and your hands because the bag will be cold enough to damage your skin.Continue to rock the bag for 10-15 minutes or until the contents of the quart bag have solidified into ice cream.Open the gallon bag and use the thermometer to measure and record the temperature of the ice/salt mixture.Remove the quart bag, open it, serve the contents into cups with spoons and enjoy! How It Works Ice has to absorb energy in order to melt, changing the phase of water from a solid to a liquid. When you use ice to cool the ingredients for ice cream, the energy is absorbed from the ingredients and from the outside environment (like your hands, if you are holding the baggie of ice!). When you add salt to the ice, it lowers the freezing point of the ice, so even more energy has to be absorbed from the environment in order for the ice to melt. This makes the ice colder than it was before, which is how your ice cream freezes. Ideally, you would make your ice cream using ice cream salt, which is just salt sold as large crystals instead of the small crystals you see in table salt. The larger crystals take more time to dissolve in the water around the ice, which allows for even cooling of the ice cream. Substances That Separate Into Particles When Dissolving You could use other types of salt instead of sodium chloride, but you couldnt substitute sugar for the salt because (a) sugar doesnt dissolve well in cold water and (b) sugar doesnt dissolve into multiple particles, like an ionic material such as salt. Compounds that break into two pieces upon dissolving, like NaCl breaks into Na and Cl-, are better at lowering the freezing point than substances that dont separate into particles because the added particles disrupt the ability of the water to form crystalline ice. The more particles there are, the greater the disruption and the greater the impact on particle-dependent properties (colligative properties) like freezing point depression, boiling point elevation, and osmotic pressure. The salt causes the ice to absorb more energy from the environment (becoming colder), so although it lowers the point at which water will re-freeze into ice, you cant add salt to very cold ice and expect it to freeze your ice cream or de-ice a snowy sidewalk (water has to be present!). This is why NaCl isnt used to de-ice sidewalks in areas that are very cold.

Clovis, Founder of the Merovingian Dynasty

Clovis, Founder of the Merovingian Dynasty Frankish King Clovis (466-511) was the First Merovingian. Fast Facts: Clovis Known For: Uniting several Frankish factions and founding the Merovingian dynasty of kings.  Clovis defeated the last Roman ruler in Gaul and conquered various Germanic peoples in what is today France. His conversion to Catholicism (instead of the  Arian  form of Christianity practiced by many Germanic peoples) would prove a landmark development for the Frankish nation.Also Known As: Chlodwig, ChlodowechBorn: c. 466Parents: Clovis was the son of the Frankish king Childeric and the Thuringian queen BasinaDied: Nov. 27, 511Spouse: Clotilda Occupations KingMilitary Leader Places of Residence and Influence EuropeFrance Important Dates Became the ruler of Salian Franks: 481Takes Belgica Secunda: 486Marries Clotilda: 493Incorporates territories of the Alemanni: 496Gains control of Burgundian lands: 500Acquires parts of Visigothic land:  507Baptized  as a Catholic (traditional date): Dec. 25,  508 About Clovis Clovis succeeded his father as ruler of the Salian Franks in 481. At this time he also had control of other Frankish groups around present-day Belgium. By the time of his death, he had consolidated all the Franks under his rule. He took control of the Roman province of Belgica Secunda in 486, the territories of the Alemanni in 496, the lands of the Burgundians in 500, and portions of Visigothic territory in 507. Although his Catholic wife Clotilda ultimately convinced Clovis to convert to Catholicism, he was interested, for a time, in Arian Christianity and was sympathetic to it. His own conversion to Catholicism was personal and not a mass conversion of his peoples (many of whom were already Catholic), but the event had a profound influence on the nation and its relationship to the papacy. Clovis convoked a national Church council at Orlà ©ans, in which he participated significantly. The Law of the Salian Franks (Pactus Legis Salicae) was a written code that most likely originated during the reign of Clovis. It combined customary law, Roman law, and royal edicts, and it followed Christian ideals. Salic Law would influence French and European law for centuries. The life and reign of Clovis were chronicled by Bishop Gregory of Tours more than half a century after the death of the king. Recent scholarship has revealed some errors in Gregorys account, but it still stands as an important history and biography of the great Frankish leader. Clovis died in 511. His kingdom was divided among his four sons:  Theuderic  (born to a pagan wife before he wed Clotilda),  and his three sons by Clotilda,  Chlodomer,  Childebert, and  Chlotar. The name Clovis would later evolve into the name Louis, the most popular name for French kings. Clovis Resources Clovis in Print Clovis, King of the Franks by John W. CurrierBiography from Ancient Civilizations by Earle Rice Jr. Clovis on the Web Clovis: Fairly extensive biography by Godefroid Kurth at the Catholic Encyclopedia.The History of the Franks by Gregory of Tours: Abridged translation by Earnest Brehaut in 1916, made available online at Paul Halsalls Medieval Sourcebook.The Conversion of Clovis: Two accounts of this significant event are offered at Paul Halsalls Medieval Sourcebook.

Business Economics Referred Coursework Assignment Essay

Business Economics Referred Coursework Assignment - Essay Example Middle East suffered a decline of wheat production of 7.4 million tons or about 19 percent because of the worst drought the country had experienced in 2008. (Commodity Intelligence Report, 15 December 2008) China and Iran, had each, reported worse effects of droughts to wheat crops. Drought in China as of October, 2010 had affected 7.73 million hectares of wheat plantation (China Daily). Iran estimated a decline of their 2008 production by 20% due to effects of drought (USDA Foreign Agricultural Service. 15 December 2008). A decline in production would mean a gap in supply and demand that raises price. The price of wheat is also affected by the weakening US dollar because this will mean a decline in the purchasing power of a dollar. The U.S. dollar is a world trading currency; meaning all prices of commodities are linked to its price, and devaluation would have a great impact to international trade. In anticipation of devaluation, all countries will immediately raise their prices. Co mmodities such as wheat, oil, coffee, etc. will now set their price records to protect their investments. Farmers know that the dollars they are receiving for the wheat is declining in purchasing power, so they have to adjust their prices in anticipation for the devaluation; that is why we have a higher price of wheat now. As an example, if the US dollar declines by 30%, and the farmer has $1 million in wheat, his million dollars will now be able to buy $700,000 worth of goods or services, so he lost $300,000 in purchasing power. 2. Identify the factors that determine the demand for goods and services in general? Consider how these factors affect the demand for wheat. In general, determinants of demand are income, tastes, prices of related goods and services, expectations and the number of buyers. We know that if we lower the price of a good without altering its quality or quantity, people will flock to you to buy as this the law of demand. We will illustrate the law of demand by ex ample in demand for wheat. The law of demand applies to a well defined good – the wheat. Then the second phase indicates that people must not only want to purchase the wheat but must be able to purchase the wheat in order to be counted as part of demand. But although willing, consumer is not able at the price of $111.00, so buyer thinks of something else to replace the need for wheat. The next step is to think of the price and quantity demanded; that is as the price rises, the quantity demanded falls, and as the price falls, the quantity demanded increases. 3. What are the major factors increasing the demand for wheat? [Make sure you use the concept of income elasticity of demand for wheat (Ardy, 2010, p. 5). The factors that increase demand for wheat are price, price of substitute goods; preferences, population and income. These factors are discussed in the following paragraphs. Price. As the price of wheat increases, assuming that all other factors remain equal, less people would demand for wheat. The demand slope is downward looking . As the price of wheat increases, people would naturally avoid consumption and look for substitute products that they would value more. The price of substitute goods. A substitute product is a good or service which may be bought instead of another when the price of the latter changes or if it becomes unavailable. For instance, the increase in wheat price will increase in the demand for corn,

Industry Environment Analysis Research Paper Example | Topics and Well Written Essays - 1000 words

Industry Environment Analysis - Research Paper Example However, the business can shield itself by use of the barriers to entry. Barriers to entry are those actions by the firm that increase the costs incurred by potential competitors for them to enter the market (Hill & Jones, 2012). Therefore, the higher the barriers to entry, the higher the costs incurred by competitors and, therefore, the lower the rate of entrance into the market. The common barriers used by industries include economies of scale, switching costs by customers, capital investments, government regulation, brand loyalty and absolute cost advantages. Economies of Scale Economies of scale refer to the benefits and advantages that accrue to a company due to its large size. Economies of scale usually arise from sources such as mass production by the firm, discounts awarded due to buying in bulk, and benefits received due to spreading fixed costs over a large volume of production. Because of a large volume of output, the industry also limits its marketing and advertisements c osts (Hill & Jones, 2012). Therefore, the profitability of a fast-causal restaurant will be affected if its size is small, which limits its economies of scale. However, it can focus on increasing its size in order to increase its economies of scale such as pricing benefits. ... For example, a restaurant could create new recipes for foods; it could also spice up its foods in a unique way as compared to those of its current competitors. Therefore, customers will get used to the products and will prefer the restaurant’s foods to other foods offered in the market (Hill & Jones, 2011). This is a feature referred to as customer loyalty; it is used to ensure that customers stick to the original supplier irrespective of any other suppliers in the market. Capital Investments The business can ensure that its profitability is maintained by investing in capital intensive projects which assure it high returns in the future. For example, a restaurant could invest in latest technological equipment of operation. Such an investment will lead to offering of quality services to customers, thus increasing the number of customers attracted. Consequently, the profitability of the business will be increased. New competitors will be barred from entering the market since the y will not have similar investments for them to compete in the market. On the other hand, the capital requirements needed to make similar investments will be extremely high, so any new business would opt not to enter the market (Kar, 2011). Absolute Cost Advantages Cost advantages for the business will arise from such angles as experience, high quality trained personnel, and control of crucial inputs of production in the market such as labor, raw materials and management skills. It could also have additional advantages such as access to cheap sources of finance and insurance benefits. Therefore, a new company in the market will be hindered from entering since it will not be able to match to the advantages of the

Nutritional adventurism Essay Example for Free

Nutritional adventurism Essay This article is about the effect of the show ‘MasterChef’ on the nutritional adventurism and culinary knowledge of children. The show is a reality game show about cooking, hosted by two chefs. The article explains how the show had appealed to young audiences. ‘MasterChef’, claims the article, has caused an increase in television ratings for the channel from which it is shown. The show has also given children extra culinary knowledge. Now, children are more interested and more critical about what they eat. They also judge their own food and the food prepared by their parents or other people. The show sparked numerous cooking lessons and workshops. Numerous recipes featured on the show have also been downloaded over the internet. Personal Opinion: I always believe that teaching children how to cook will help them in the future. Culinary skills learned early will definitely result to future households where food is a primary concern. MasterChef, and its effects on young audiences illustrates the possibility of making young audiences interested not only in the cooking show but more importantly in the food that they eat. Summary 2: This article is about the Community Gardens program which has three goals; to bring the community and the government together to address nutritional problems, to promote horticultural knowledge and initiate an exchange of indigenous horticultural knowledge, and to create an indigenous garden industry which will give communities livelihood and address their health needs. According to the article, collaboration in the community in horticulture gives the community a sense of food security because gardens are just as important as water systems. The article also illustrates how the program has succeeded in bringing together communities and encouraging innovative ways of horticulture. The fringe benefit of all these is the availability of healthy produce for the communities in which the program was implemented. Personal Opinion: I have confidence in the health benefits of organic and fresh food. The essence of community gardening comes to me not only as a means of providing the opportunity for communities to eat healthy but also the opportunity for communities to value the fruits of community effort. The Community Gardens Program is one such program that fosters fellowship and concern among community members while making healthy food available at the same time. Summary 3: Wangkatjungka is the main focus of this article where the establishment of home vegetable patches was apparently spurred by childrens’ school projects. Many vegetable patches mushroomed all over town because of this and each household began to eat what they produced. This was a very welcome change for the people of Wangkatjungka, second to the community ban on alcohol. According to the article, the establishment of household vegetable patches has made organic and healthier food available for the children and the adults. The article claims that this trend in backyard gardening has contributed so much to the community in that it has vowed to support and continue the project until each household in the community has their own vegetable patch. Personal Opinion: Having your own vegetable patch is such a good idea for me that I might even be starting my own. This article has given me enough new insights to consider the benefits of backyard grown produce and look into the possibility of having my own vegetable garden. I like fresh vegetables, and I like freshly picked organic fruits and vegetables even better. Summary 4: The relationship of diabetes and the eating habits of people is tackled in this article. In it a study by a certain Himsworth is mentioned that showed why third world countries had lesser incidence of diabetes and obesity compared to Western countries. The article attributes this to the kind of food that people eat in these countries; third world countries have more unprocessed carbohydrates and adequate animal protein in their diets than in Western countries. The article also outlines the value of healthy and basic or simpler eating in the control of diabetes and other metabolic disorders. It states that people who eat more plant or fruit based food are less likely to suffer metabolic disorders like diabetes and obesity. Personal Opinion: There are so many metabolic disorders that cause a myriad of health problems nowadays and it is comforting to know that the best weapon against these diseases is simply, basic and healthy eating. I am a believer in the idiom that ‘prevention is better than a cure’ as well as in the motto that ‘it would be better to spend money on healthy food than on medicine. † The insights offered in this article have encouraged me to eat healthier and begin my pursuit of a longer, healthier life. Summary 5: To sum up this entire article, one can simply say that it taunts at the way the judges in the show MasterChef make their judgments and throw snide comments at their contestants. The article purports that the decision of the MasterChef judges are influenced by the aesthetic or visual quality of the food presented and not by palatability of the food. The article implies that the show does not give justice to the way ordinary people cook, rather it insults the cooking skills of ordinary people by showing that cooking on television is not the same as real cooking, and that in the MasterChef kitchen, one doesn’t have to cook delicious food if one can be chefy with the presentation. Personal Opinion: I have seen the show, MasterChef myself and this article seems to have reason to claim that the judges in the show do not necessarily judge according to how ordinary people cook but have begun to become influenced by how one would expect food prepared by a professional chef. I believe that it is the show’s spontaneity and ‘reality’ that gives it its appeal and if the judges fail to remain in these ideals the show will ultimately fail.

Gitlow vs New York Essay -- communism, freedom of speech, criminal anar

In the twenty century, the U.S society was in the period of tending to be a human base society. The laws in America were introduced to create a fair and regulated society for its citizens. The First and Fourteenth Amendment of Constitution granted that the U.S citizens have the freedom of speech. And the New York State had its law of Criminal Anarchy Act since 1902 for â€Å"organized government should be overthrown by force or violence, or by assassination of the executive head or of any of the executive officials of government, or by any unlawful means (n.p).† The citizen in the any state of the U.S should always both obey the state law and follow the national constitution. Otherwise, the citizen would get corresponding punishment for jail, community service or even death for most states. However, the case of Gitlow vs New York happened in 1925 that majorly argued about the U.S citizens’ guaranteed freedom of speech in the First Amendment of Constitution and the New Y ork State’s Criminal Anarchy Act. Gitlow vs. New York is a case that influences the integrity of U.S legislative system importantly. In the 1925s, Benjamin Gitlow, a left wing socialist, published speeches of anti-government to advocate a new better communist government. His action caused the charge as unpopular and dangerous speech for the whole society from the New York state government, and his behavior became a court case. According to the website thefreedictionary.com, that â€Å"The opinions expressed in† â€Å"The Revolutionary Age† and â€Å"The Left Wing Manifesto† â€Å"formed the bases for the defendant's convictions under Sections 160 and 161 of the penal law of New York, which were the criminal anarchy statutes† (n.p). â€Å"The Revolutionary Age† and â€Å"The Left Wing Manifesto† ar... ... his action could actually be really harmful for the society. Gitlow defended him as not guilty merely depends on the part of the context of the First Amendment of Constitution about U.S citizens’ freedom of speech. It is actually make a deliberate misinterpretation out of the context. Gitlow’s claims that he is innocent might because of his less awareness and misunderstanding of the laws. Or, he might believe that the faults of the Constitution would help him escape from the punishment. However, in my point of view, Gitlow fail to consider the primarily goal of the U.S Constitution that is to protect the best profit of its majority. Bibliography http://legal-dictionary.thefreedictionary.com/Gitlow+v.+New+York http://principlesofafreesociety.com/freedom-of-speech/ http://www.aynrand.org/site/PageServer?pagename=objectivism_nonfiction_the_ayn_rand_column

Central Dogma

The Central Dogma of Molecular Biology was founded by Francis Crick in 1958. A central dogma of biology provides an explanation as to how gene expression occurs. The central dogma is the main thesis of molecular inheritance. It states that DNA makes RNA, which makes protein. Genes control the traits by controlling which proteins are made. The process of Central Dogma of Molecular Biology is when DNA transcripts into RNA and then translates into protein. Transcription is the transfer of genetic information from DNA forming into RNA.The differences between DNA and RNA are the sugar that’s in DNA which is called deoxyribose and ribose for RNA which does not have sugar. When DNA replication begins, it begins at a specific point in the DNA molecule called the origin of replication site. The enzyme helicase unwinds and separates a portion of the DNA molecule. After the DNA polymerase separates a portion of the molecule it then initiates the process of replication in which DNA polyme rase can add new nucleotides to a pre-existing chain of nucleotides.Therefore, replication begins as an enzyme called primase and it assembles an RNA primer at the origin of the replication site. The RNA primer consists of a sequence of RNA nucleotides, complementary to a section of the DNA strand that is being prepared for replication. The RNA primer is then removed and replaced with a sequence of DNA nucleotides. Then Okazaki fragments are synthesized and the RNA primers are replaced with DNA nucleotides and the individual Okzaki fragments are bonded together into a continuous complementary strand.During transcription deoxyribose nucleic acid is formed into another nucleic acid which is ribonucleic acid or RNA. Transcription begins when RNA polymerase binds onto the double stranded DNA molecule. RNA polymerase moves along the strand of DNA making a complementary single stranded RNA molecule. Here’s a good thing you could remember, take the root word ‘scribe’ ou t of transcription and think of it was a person who writes copies of important documents because that is what scribe means.Next is translation, it is the process of using the code in RNA to put together the protein and translation is a word that describes the transfer of information from one to another. Translation begins when messenger RNA binds to the ribosome. The RNA passes along the ribosome and brings out 3 nucleotides at a time. While that’s happening the amino acid that is being carried is also being transferred to the amino acid chain. After that is done the ribosomal complex falls apart and the protein is released into a cell.During protein synthesis, amino acids build a protein molecule that’s, of course, called protein synthesis. Synthesis means ‘putting together’, so that is a good way to remember protein synthesis. Protein synthesis is the cellular process of building proteins. Translation has a part of the central dogma that is also included in protein synthesis and transcription is not. Translation is just the decoding of RNA to make a chain of amino acids that will then, later, turn into protein. Overall in central dogma, DNA is simply the instructions to making proteins.