I did more practice on parabola, which we learned in Algebra I. And this is an excellent experience for me since we weren’t doing the questions, but practiced in the real life! We did well on collecting data and filming. The challenge we faced is using the logger pro software, because that was the first time we use logger pro. The part we need to improve next time is to be more efficient. If I can have another try, I will be more familiar to logger pro this software, and do all the works faster than the first time.
I created my capstone video by using “Powtoon”, I’ve never used it before, so Powtoon was a totally new tool for me. I learned how to use that tool, and also learned how to make my video be attractive.
2) Claim: The non-newtonian fluid is the most successful prototype.
very soft (just like a liquid) when poking slowly.
Very very hard when poking really fast.
Because our aim is to make a computer protector, so a very hard surface can really work in that case, and our polymer is even bullet-proof! Our polymer is also soft when touching slowly, which could attract more customers to buy it since it’s very weird.
a. The entire design process:
b. Product pitch to the dream on team: I think it’s great because everyone just tried their best, and there’s no big mistake during the presentation.
c. The sustainability of my polymer: I think we did a really good job in this part, because all of our materials are environmentally friendly.
The prototypes are glue and non-newton fluid, they are both white and liquid. We tested them respectively, and the result is that glue doesn’t have a good protection skill, but non-newton fluid has, so we chose non-newton fluid. The next step is to determine how much water and how much corn starch should we use. We found out that the greater percent of corn starch in the non-newton fluid, the stronger and stiffer this polymer is, but we still need to put some water with corn starch because we need it to form non-newton fluid, and also make it be flexible and reversible, which could go back to its original shape once been punched. Later we found out that if corn starch is 80%, and water is 20%. the polymer we made will be the closest as what we expected. And from the observation, the color of the polymer is white, and it’s half liquid and half solid, and now we are testing whether it would dry out or not.
The physical properties I want my polymer to have are:
1. Be hard so it could protect the computer.
2. The shape and appearance of the polymer could return back once been hit.
Plan to develop different prototypes:
I need to mix solid and liquid into a whole body so that it’s hard and reversible. And because of that, I found cornstarch and water. They are actually perfect for mixing them together. They can form as a whole, and also it’s both solid (cornstarch) and liquid(water). Basically it’s the mixture of water molecule and cornstarch molecule, and when you put you finger slowly into it, it’s a liquid because there’re water molecules, but when you just punch it, it became a solid because the force makes water molecules to go down to the bottom, so the surface are all made by cornstarch molecules, which is a hard solid.
Method to test the prototypes for my desire properties:
I will make some procedures first, then try it out, then I’m looking for two features of my product to determine whether that the one I expect to get or not: 1. is it hard enough. 2. Can the shape go back once been hit? If the product has all of the two features, then this product is the one I expect to get.
The goal of my project is to make a protection to computers. My target audience is the person who’s computer has usually been crashed on the ground. The polymer that I’m creating is the polymer when something hits on it really hard, it’s really stiff, but when something just goes into it very slow, it’s very soft, and somehow become a liquid. Even bullets shot from a gun can not go through it （Science Alert, Liquid Armour Is Now A Thing, And It Stops Bullets Better Than Kevlar）. So when the computer falls on the ground, this polymer will perfectly protect the computer since it’s very stiff. The specific characteristic of this polymer that is best for my design problem is stiff when fast hit. And in order to attract customers to buy my product, I have made my product different from other products. First of all, the unique characteristic soft when poking slowly and stiff when hitting fastly could draw a lot of customers’ interest since it’s unique, you know as the salary for people in China increased, more and more people are buying things that are looks good, so this products could really attract this kind of people. Secondly, it is much stiffer than other protectors, since even bullets could not go through it, so it could provide a better protection.
For example, one of my clients is my mom, she usually crashed her computer to the ground, which created a lot of pits at the edge of the computer, and that even happened when she got some protections. So, I will put the product I that created by me into use on my mom’s computer, and because of that, the pits on the side of the computer would never exist.
FIONA MACDONALD, Science Alert, Liquid Armour Is Now A Thing, And It Stops Bullets Better Than Kevlar, 10 APR 2015, https://www.sciencealert.com/liquid-armour-is-now-a-thing-and-it-stops-bullets-better-than-kevlar
This book is about a software called Feed which is inserted into humans’ brain in order to allow people to get knowledge without studying. There’s a character called Violet who got Feed really late (when she was 7) because her family didn’t have enough money to buy Feed and because of that, there’re some mistakes in her Feed. And later when she became older, those mistakes exposed her to a really serious disease, and later on she died because of that disease.
The main characteristic for Violet in my opinion is that she is afraid of death. Because after she got that disease, she kept sending Titus messages about how miserable, reluctant to face death, and how afraid of it she was.
Violet is afraid of death because according to the evidence of speech, she’s kind of feel regretful and sad about death.
Violet looks timid because the evidence of looks says that.
Violet was still having a lot of things that she wanted to do but didn’t do, so she felt sad about dying at an early age (according to the evidence of thought).
And I also got an evidence about how other characters in this book think about her:
“I shook my head. ‘She’s scared. They say that it’s… The feed isn’t working well with her brain anymore.’
‘Omigod.’ She looked at me. ‘What does that mean?'” (P222)
According to the evidence, we can infer that they are very sympathetic because they think Violet is very unfortunate and miserable.
Polymers are the most common thing that human cannot get rid of. Almost everything in our life is polymer, including backpacks, water bottles, and even devices. Polymers are the thing which made up by long, repeated molecule chains.
There are two types of polymers: natural and synthetic.
Natural polymers are the polymers that didn’t been processed by humans, and usually, they are easy to find in daily lives. For instance, woods from trees and rubbers are both natural polymers.
Synthetic polymers are the polymers that had been processed by humans in order to make them be better. For example, rayon is a synthetic polymer, which is made from wood pulp or cotton. It has several really good characteristics: low cost, diversity, and comfort. People use rayon to make clothing, belows are the procedures:
extract and purify the cellulose from rayon.
generate cellulose into cellulose filaments.
spun cellulose into yarns.
use yarns to make cloths.
Another example is polyester, the ingredient of it is ethylene. Polyester has several uses, for example, it could either be filament or in staple form. For the filament one, each individual strand of polyester fiber is continuous in length, producing smooth-surfaced fabrics.
Actually, another interesting example of synthetic polymer is when people blend PVA glue and borax together, a new solid substance would be formed.
This video is made by me(Andy), Scarlett, and Kate, it’s about French Revolution. We are narrating the history by telling the key points which picked from the timeline. All the photo in this video is made by us (we drew them). It’s assessed for speaking. And we are talking in plain English so that everyone could understand!