Polymer Journal #4

Polymers are materials made of large molecules composed of many repeating units. For example, plastics are synthetic polymers. They are one of the simplest compost of molecules. Our original goal was to design a polymer that can be used as a sound insulator and reduce its’ sound. There are many things that should be used as a sound insulator including the high heels. Our final goal was to produce a polymer product that can be worn on shoes that has heels to avoid its noise. These heels are especially annoying at the library. Hardly, anyone can concentrate on his or her own works because of the sound that is produced by high heels. We’ve planned to call our polymer as M.M.H, which stands for Manners Maketh Heels. It means that wearing this polymer on heels will make you a person with manners!

Our first two prototypes didn’t turn as well as we expected, but during the third test we’ve started to have a polymer that is similar to the ones that we’ve expected to have for our final product. The first prototype had too much liquid glue, which made the polymer too sticky. The reason why it shouldn’t be is because it might stick on the floor as the consumer walk with the heels. The second polymer needed to a stringier and more rubbery and then we’ve realized that we’ve included too much liquid starch because it makes the slime ‘less’ stringy. There are lots of kinds of heels these days, and to wear these, it should be moldable. The costumer should be able to change the shape of the polymer. My teammates and I’ve developed an idea of mixing Super slim with Boogers. We’ve added some more glue and some more guar gum into the solution, which became a perfect final product.

The main thing that we struggled during the project all happened because of the hypothesis that we had from the first class. We had a hypothesis that PVA solution and Guar Gum has the features that we would defiantly do not want to include in our solution. However, as we fail different tests of the polymer, we’ve started to use the materials that we have never used before. During this project, I’ve learned that there are lots of polymers around us, and they are often used.


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Japan’s Tortures Toward the Koreans

When My Name Was Keoko was a book written by Linda Sue Park. This is is mainly about the times during the 40s, when Korea was rule by Japan. For 30 years, Korea have been ruled by Japan, and during the Japan occupation, many Koreans died and sacrificed their life for the independence. They wanted to unite from Japan, and lots of people gave up their lives to do that.  “‘The time will come,’ she said to the tree, ‘when you will be free to grow in a place of honor. I will see that you live until then'” (Park 35) This quote shows that all the fighters for independence were giving each other for hope. “‘Sun-hee,’ she whispered, ‘a mistake made with good in your heart is still a mistake, but it is one for which you must forgive yourself.'” (80)  Lots of people were murdered by the Japanese soldiers; however some Koreans also had to  betrayed their families, to protect them. It was a command from the Japanese government and they had to follow it or else they and their family will die or get tortured.

Situations for video.


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Korea’s History Alphabet ‘Hanja’

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When my Name was KeoKo has a book cover with a Korean traditional flower ‘Kookhua’. However, this is just one of the many things that represents Korea, it does not have any relationship with the book. During the 1940s, Korea didn’t have their own alphabets so they used the Chinese characters. Chinese characters were also one of Korea’s alphabets, however, Japan didn’t let the Koreans to use it, and instead they forced them to use Japanese during the Japan occupation. The Koreans called the Chinese characters ‘Hanja’, and Hanja are very meaningful alphabets.

口 “Mouth,

門 Gate.

問 When you put them together, you get ‘ask’ or ‘question’, right? It’s a guard at the palace gate…” (Park 25) This quote shows that each character has meanings and they can be combined. When they are combined the character still remains its original meaning, and the characters can be easily remembered. The main characters were not allowed to learn any Hanja but Sun-hee’s uncle and her mother continuously teaches Sun-hee and Tae-yul.


Screen Shot 2016-05-03 at 7.41.21 AM  “Man.

Screen Shot 2016-05-03 at 7.41.26 AM  Backpack.

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and then you sort of square off all the lines to get ‘heavy’. The man’s been on a long trip, and his backpack is full of silk and jewels, lovely things for his family—” (26) This quote also shows how Hanja can be easily understood and combined.

multi media

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Uneasy Choices That Causes Death

66-years-ago, on June 25th, 1950, there was a Korean War that divided Korea into two divisions, South Korea and North Korea. North and the South were fighting for different governments. Armed forces from the communist of North Korea invaded into South Korea, wanting a Korean War and the fight continued for the next three years without having a winner or a loser. Millions of people died; however, there were bigger sacrifices and more deaths that happened on the 40s.

From 1910 to 1945, total 35 years, Korea has been ruled by Japan, and they have done things that could never be forgiven. Japan forced the Korea to sign a treaty that was unfair and injustice. The Japan-Korea treaty had lots of picky conditions; one, letting the Japanese government and their people using Korea’s seaside whenever they want. Two, making sure that the Japanese government are managing all of the trials that are happening between a Korean and a Japanese. There are a couple of more treaties, but because of these two, Korea had to face a lots of uncomfortable situations and many disadvantages. When My Name Was KeoKo is a book written by Linda Sue Park during the Japanese occupation. The main character called Sun-hee and her entire family had to change their names and their family name transferred into Keoko. “ By order of the Emperor, all Koreans are to be graciously allowed to take Japanese names” (Park 5) The Japanese government forced all the Koreans to change their names into a Japanese one, to make them a Japanese citizen. “The man who won the marathon—Kitei Son? He’s the Korean runner Uncle was talking about. His real name is Sohn Kee Chung. (9)” This quote shows that one of the famous Korean runner Sohn Kee Chung also had to change his name into Kitei Son to run the marathon.

Sun Hee’s uncle has a great patriotic about Korea, and he is one of the characters who sacrificed his life with absolute fidelity. One day, he has been beaten up very badly from the Japanese soldiers. “Uncle and some of his friends changed all the newspapers. They crossed out the Japanese name and wrote his Korean name in its place. They altered the Japanese flag on his uniform, too—they drew a wavy line in the circle, so it looked like the Korean flag instead. (11)” The person who the quote is talking about is the marathon runner Sohn Kee Chung. Uncle was very brave to do this because he had to sacrifice his life to break the Japanese law. Sun Hee’s uncle was the only man who survived from his friends because of event.

During the Japanese occupation of Korea, it wasn’t easy for the Korean citizens to fight back because the tortures that the soldiers have done was deadly painful and also caused deaths. However, some people, like Sun Hee’s uncle, fought for the independence of Korea by sacrificing their lives, and for their homeland Korea.

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Journal Entry #3

People learn from mistakes, and because of the mistakes, people gets closer to something called perfect. My teammates and I’ve tried lots of different ways to make a perfect polymer for our product.
Our first failure polymer had a recipe that was similar to a gloop. 7ml of water, 15ml of borax and another 15ml of liquid glue was our recipe for the first polymer. We’ve just increased the amount of borax, because it decreases the stretchiness; however, as I said before it was too easily poked, and unmoldable.

Hopefully, the second polymer that we made nearly had all the characteristics that we wanted it to have and a bit more successful that the first polymer. I had a hypothesis that we will definitely not use PVA solution, and guar gum. But, on the other hand, they were some chemicals that we were supposed to insert it in our recipe. Guar gum has an interesting feature of making the polymer more elastic. By adding it, the polymer became more rubbery.
The idea of our second polymer started from Richard’s group. They gave us an idea of using the method of mixing Super Slim with Boogers. While Sharon and Haram (my teammates) made the Boogers, I’ve made a Super Slim to combine them together. The Boogers consist of 13ml of glue and 15ml of liquid starch. For the Super Slim, we’ve used 20ml of PVA solution, and 4ml of Borax. After combining them together, we’ve added 3g of liquid glue, again, because the polymer has to stick onto the high heel.


We are looking forward to decrease the amount of liquid starch for our final test because this will make the polymer a bit stringier and more rubbery. Not too easily poked, not too stretchy, and needs to be moldable and waterproof are the characteristics that we want for our polymer and we are getting close to it.
Materials for our semi-final polymer
• 20ml of PVA solution
• Total 15g of Glue
• 4ml of Borax
• 1.5g of Guar Gum
• 15ml (but eventually 10ml) of Liquid Starch

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Journal Entry #2

Our product is a polymer that needs to be hard and unstretchable but also moldable, so the user can change the shape of the product that fits onto the heel. To have these characteristics, we will probably include lots of borax, which decrease the stretchiness. PVA Solution would defiantly not be included; however we might use some liquid glue. PVA solution is a material that makes the polymer sticky and more stretchy, something that we would defiantly not want for our solution. According to my hypothesis, the procedure of the Gloop and the Booger are the best scenarios to design our product. Our team has tried lots of different slime test for the Gloop; it has a very low slime rating, and can be mold easily. It cannot be easily poked, and during a quick pull test, it clearly breaks down into two pieces. For our first test, we’ve used 7ml of water, 15ml of borax and 15ml of liquid glue. Unexpectedly, the polymer was too sticky and too easily poked. Most of the heels are sharp and we don’t want our product to be poked, but remaining it’s original shape. (The one that the user molded) Our solution was too sticky because we’ve used too much glue, so for the next test we will try to decrease the amount. My recipe is mixing some guar gum inside boogers with borax because this will make the polymer less sticky and less stretchy, a perfect model that we want.

Sitations #2

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Polymer Journal #1

Our goal is to design a polymer that can be used as a sound insulator to reduce its sound level. Loud noises, especially cacophonies, are becoming one of the major problems these days. There are lots of environments that makes large sounds, for example, noise complaint issues from neighborhoods or loud noises from the television that’s in the living room. Out of all these sounds, do you know that the most annoying sound is produced from our feet? More than 69% of all women are wearing high heels and they produce loud noises whenever the person walks. People who are wearing the high heels do not recognize the sounds from their heels; however they actually make huge sounds. The sounds from the heels are especially annoying in libraries. Library is a place where people can rest as they read books, so hardly anyone ever talks. However, when people get distracted by something, they are mostly because of the noises from the heels. So we want to produce a polymer product that can be worn on shoes that has heels to avoid the noises. And because of this, our target-market-audience will be women who likes to wear high heels. Our polymer has lots of characteristics and lots of reasons for the consumer to buy our item. First, our item is moldable, so it can change into any kind of shape that fits for each heel. Even though the product is disposable and cannot be recycled, it is waterproof, so it can be also used in rainy or snowy days.


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Don’t Quit!

Written by Edgar A. Guest

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Another Goal, Another Formula

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Image above

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ax^2+bx+c=0 is a quadratic equation that’s in standard form. In this equation, C always signifies the y-intercept. If we substitute 0 into every ‘x’s, then the only solution for y=C. For example, y=2x^2+5x=7, x=0, y=2(0)^2+5(0)+7=7.

‘a’ represents the slope or how wide the graph is; if ‘a’ is a positive number, for example 6, then this has a maximum formula. If ‘a’ is a negative number, for example -6, then it has a minimum formula. ax^2+bx+c=0 can be also represented as y=a(x-α)(x-β) and there are two solutions for this equation, x= α and x= β.

‘b’ represents the vertex by using X=(-B/2A)

f(x)=a(x-h)^2+k is a equation that’s in vertex form. ‘a’ represents how wide the graph is, maximum or minimum, just like ‘a’ for the quadratic equation. ‘h’ represents where the x’s vertex is, and ‘k’ represents where the y’s vertex is. So the vertex would be (h,k). The vertex is the highest point of the graph, and the highest point in the formula.

An example question: f(x)=(x-5)^2+5. The vertex for this equation will be (5,5).

Throwing things into the rubbish bin is a very common scene that’s seen these days.  The flight of the garbage is a parabola. The x-axis represents time(second), and the y-axis represents height (meter). The starting point of this formula would be 0.2m high from the ground, which is the y-intercept. The equation for this graph is h=-5.9t2+3t+0.2. The x-intercept represents the time, and the y-intercept represents the height in meters, 0.1meter each column.

The vertex formed equation for this is f(x)=-5.9(x-15/59)^2+(343/590), and the vertex will be (15/59,343/590). This is because when we substitute a and b into x=(-b/2a).

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My Crush


It’s Love we don’t understand

Where’d you go,

I’ll be there

if you find me

The Ghost in love

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