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You may not have noticed that cups have been around for thousands and thousands of years. Do you actually know where they even came from? Different varieties and versions of cups have been made since the first original cup. Now, we have cups that come in glass, paper, plastic, Styrofoam, and several others. Each cup was invented by different people in different times, but they were all based off of the idea of the very first cup. Each cup was made for a reason. In this experiment, each cup listed above will be tested to see which one will keep a liquid warm longer. When conducting this experiment, a cup that can sustain a heated liquid will be selected from the data.
When a hot liquid is placed in either a plastic, paper, styrofoam, or a glass cup, then the styrofoam cup will keep a liquid heated longer. During this experiment, a liquid will be warmed and poured into the different cups.
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“The exact origins of the paper cup seem to be unknown, therefore the inventor of the handy disposable beverage holder may never be known, although there is evidence that they were used as far back as Imperial China. What IS known is that around the beginning of the 1900’s, paper cups gained popularity when people began to realise that sharing the same tin or ladle, to drink from water barrels, also meant sharing germs.” Since way long ago, cup companies have been making their version of the invention of the cup. In the year of 1907, a lawyer named Lawrence Luellen, developed the “Health Kup”. The cup later became known as the Dixie Cup in 1919. Lawrence did this to help improve public health and hygiene due to the concerns shared their opinions about shared cups. He worked for the American Water Supply Company, whose founder, Hugh Moore, developed a water-vending machine with disposable cups and together, Lawrence and Hugh embarked on an advertising campaign to educate the public and market the machine.
Journal: when i was doing my experiment the first thing i had to do was get my materials that are 1) clear drinking glass 2)¼ cup of vegetable oil
Repeat this process for cup #4. Now place cups #2 and #4 in a secure position where they are not affected by the heat lamp. After that, place cups #1 and #3 under the heat lamp with about 10 cm of space between the lamp and the cups-the heat lamp should remain off for the time being. Once the samples are situated, turn on the LabQuests and attach two temperature sensors to each LabQuest, every partner should be assigned a temperature sensor and a cup. When everyone is ready, they should begin gently stirring the contents of their assigned cup with their temperature sensor, the whole group should try to start stirring at the same time. Continue to stir at a constant rate for the rest of the experiment. The green arrow on the screen of both LabQuests needs to be clicked in order to begin recording data, the heat lamp should be turned on at this point. Carry on measuring the temperature of all four samples until the ice in cup #2 melts completely and the temperature has warmed to a few degrees above 0° C. Once this has happened stop recording data on both LabQuests by clicking the red square on the screen. After this is done turn off the heat lamp and double click on the graph title on the screens of both LabQuests to add a descriptive title to the
heat will stay in the cup and can only escape by rising to the surface
The beaker of water was placed on a hot plate and the water’s temperature was brought to a gentle boil.
The specific heat of copper was calculated to be .425 J/goC by using the relationship of the specific heat of water and copper. The percent error of the aforementioned specific heat of copper is 9.4%. The unknown metal’s specific heat was found to be 1.104 J/goC based on data collected from the experiment, however, the true identity of the unidentified metal was revealed to be Magnesium. Given the identity of the metal, the percent error was found to be 59.33%. This percent error is incredibly high, some potential sources of this high percentage is the nature of the styrofoam cup, in that the cup could not insulate the water very well, allowing the heat energy to not be contained in the cup. Another possible source of error would be human
Freezing is a big part of this experiment. When liquids freeze it becomes ice, the molecules begin to form a crystal lattice, which pushes them apart. However, when a liquid is frozen it has taken up to 9% more room than it did when it was a liquid. Another word for freezing is solidifying. But, the purity of a compound can influence at when the liquid to solid change takes place. Most substances freeze at the exact same temperature that they melt. But did you know that hot water freezes faster than cold water? As the water warms up it becomes less dense, the hydrogen bonds stretch and the molecules move farther apart when these hydrogen bonds stretch they allow the covalent bonds to shrink and release their energy. This is equivalent to cooling. So, hot
...old War. The Soviet Union feared America because they thought we would use Western Europe as a base to attack them. Also, the Soviets wanted to spread communism worldwide. This upset the Americans would were following democracy.
Place 3ml of solution 1 intro a test tube. Heat it to boiling in a water bath. Allow it to cool and then add 3ml of H2O2 to the test tube. Note the result and record it.
By exposing the chocolate and the cookies before the light and heat of the 60-watt light bulb, the students will be able to progressively observe the process of the material melting and make records at every stage of the experiment. Using the 15 seconds step, the students can identify the melt temperature and time of the chocolate under the lab conditions as well as make and analyze their records in the final part of the experiment. The experiment is expected to establish, which of the chocolates and cookies melt faster, and make conclusions about the influence of the consumables ingredients on their physical properties. This corresponds with the TEK 112.11 (5B) procedure, which allows students to “observe, record, and discuss how materials can be changed by heating or
In nineteenth-century society, a time well versed in the uses and advantages of Gutenberg’s printing press, the typewriter changed the way people thought about writing. Since the introduction of the printing press four centuries earlier, there had been a very limited amount of new inventions pertaining to writing or the world of the mechanized press. Advancements certainly had been made to modernize the printing process, but the typewriter was the next invention that would change the face of writing. The typewriter made writing more common and accessible and loosened up proper business etiquette. Professionals shifted from the mindset of having to write a handwritten letter regarding company updates and accepted the notion of being able to type out a business memo. The process of typing also affected the way authors wrote and what they thought about writing as it allowed them to become more involved in publication.
This experiment involved the dropping of weights from a specific height; these weights would churn the water inside of the bucket and increase the overall temperature of the water slightly. This relationship served as the foundation to the First Law of Thermodynamics:
many possible uses for a pair of plastic cups". They say that the people that copied the
Also, when we put the insulation cans in warn water the water heated up the can. And lastly, in the insulated can experiments, both cooling and heating, when the cans temperature was changed it in turn changed the air temperature
The handle of the kettle look simple and is curved with balance” (Abdulaziz . par 5). These unique design elements that Bernhs created combined gave the kettle a industrial design look to them, balanced yet very modern and trendy during that time period. The last design standard of industrial design was the use of technology in this product. This technology used inside the kettle was a very innovative design; there was no product like it. In fact, according to collections.com, in the Inside of the kettle there was electric wiring, and it ran along the inside of the kettle. This technology heated the liquid up (either tea or coffee) in the kettle just by plugging it into the wall (collections .par 1). This innovative industrial technology made it possible for people’s lives to be easier, it allowed people to use this appliance anytime and anywhere. Looking at this invention, this was a unique industrial artifact because it was not only a household appliance that convenient to use anywhere, it was also a stylish statement piece in any household. This is an example of form follows
The word paper comes from the Greek term for the ancient Egyptian writing material called papyrus, which was formed from beaten strips of papyrus plants. Papyrus was produced as early as 3000 BC in Egypt, and sold to ancient Greece and Rome. The establishment of Great library at Alexandria put a drain on the supply of Papyrus, so According to the Roman Varro, Pliny's Natural History records (xiii.21), parchment was invented under the patronage of Eumenes of Pergamum, to build his rival libray at Permagum. parchment or vellum, made of processed sheepskin or calfskin, replaced papyrus, as the papyrus plant requires subtropical conditions to grow.