Project Recharge Unit Reflection

Caption: Me and my group performing the child who is working at the cocoa farms.

Unit Reflection:

Looking back on Project Recharge, I learned about child labor and how chocolate is made. For example, I researched on how companies make their chocolate. In Ferraro, there use child labor to get the cocoa beans.Children not only have the low pay, also they are working in horrible conditions. So, I think the children don’t have the freedom to go to school, but the cocoa farmers have the power to let them work. Also, I learned how to make citations using noodle tool. A citation needs to have the name of the book, article, or other resource; the name of its author; information about the journal it came from; the date it was published; and when it was accessed if it was read online. Before this project I used to think chocolate does not use child labor and it’s very easy to be made, but now I think the children making chocolate are very tired and children aren’t going to school, but working to make chocolate. For example, I found out that in contrast the children are working for the Ferrero cocoa supplier chain only earning 50 cents to 90 cents a day, whist the average of those living in extreme poverty in the world earn about $1.90 USD a day. This is shocking data that these cocoa farm workers’ families and their children have to work 13 hours a day but earn the least amount of money that anyone in the world could earn. When I found out that many chocolate companies are using child labor, now I only buy chocolates that are child labor free.Looking back on Project Recharge, I realize that power is very important because if you have the power, you can have the freedom to do things. For example, the children in the cocoa farm don’t have the power and freedom, but the farmer have the power so he can control the children.

River Field Study-Data Collection 5

Date: Mar. 7,2019. We went to the Wenyu River for field study. For Quadrant 1&2, the insects are getting back. For quadrant 2, there are many spiders.

Photo Caption: This picture is quadrant #1.

The Data table

In January, there are no insects on the ground. I notice that the amount of insects gets smaller when the temperature gets colder. We the winter pass, the insects are getting back again. Next time we collect data, I wonder will there will be more insects.

Humans of ISB: Define & Inquire

The project that I chose for Ignite week is Humans of ISB, and the reason is I want to learn about people in ISB. In the interview process, I chose three people to interview. One is my math teacher Mr.Crig, and one is a Sodexo staff, and another one is my friend. First I took a portrait of them and then ask two questions — when is the happiest moment in your life and what are you worrying about now. In the end, I chose to draw Mr. Crig.

Project Collision: Final Blog Post / Driving Question Reflection

Final design picture:

Project Reflection:

Looking back on Collision, I learned how to write a good pitch and also how we can we use a drone to deliver. For example, we researched how to slow the force down when the box is dropping. Before this project I used to think to deliver food with a drone is very easy, but now I think you need to do many preparations to deliver food. For example, when we are designing the food delivering box, we have to think about the soft landing, temperature control, and the accuracy when the box is dropping. Looking back on Collision, I realize that it is very important to design a reliable system. Because you can fix your mistake when you are making them. For example, when I was making the design 0, we realized that we need a parachute to get a soft landing, so for drop 1, we improved.

One Day: The Hutong Kitchen Blog Post

Pictures or video of Final Product:


We decided to do Sichuan Menu B which is:


Process Photos:


One thing I did well is cutting the food with the big knife.

I learned how to cut food, make food.

One challenge that I face is cutting the cucumber. The cucumber is very slippy and it turns when I am cutting.

I think one day is very important because you can learn things you want to learn that can’t learn in school.

River Field Study – Data Collection 4

Date: Jan. 25,2019. We went to the Wenyu River for field study.



Photo Caption: This picture is the quadrant #1.



In January, there are no insects on the ground. I notice that the amount of insects gets smaller when the temperature gets colder. Next time we collect data, I wonder will there still be no insects.

FoodPanda Drop 1

Our team constructed the first design using the box I have bought and an orange parachute.  Multiple drops took place and we noticed that the box always hit the wall, and sometimes when the box hit the force plate, it will bounce to the ground.

In order to improve our design, we paid attention to the area where it failed. The following “FAILS” happened during the drop:

  • The parachute brokes.
  • The parachute is too small.
  • The box is too big.

Some things also went well. Big successes include

  • The force decreased.

For our next design, we will improve upon the first prototype by making a bigger parachute.

Egg Drop Blog Post

On Monday, January 7, I began Project Collisions with an egg drop. This design challenge was to drop a raw egg from a height of 5 meters without breaking it. A material list with items to purchase was provided. My first design was Use to balloons and strings on the top and put the egg in a balloon then put the newspaper on the balloon.

Then, working in a group, we decided to make a parachute and use the lines to connect with a new paper. Inside the newspaper, we have the egg.

As the egg was dropping, I am worried about can the parachute can hold the egg.

Our design was unsuccessful because the parachute is unattached with the egg and the egg fill down by itself. Next time, I would make the parachute bigger and the connection (egg and parachute) better.

Project Collisions is using the idea of drone delivery. During my research, I notice that there are lots of product that can be delivered by drones. I am interested in delivering food.

Through this project, I hope I can learn more about a drone delivering product and how can the problems be solved.

Broke Food Drop 0

In Project Collisions, I am creating a system to deliver McDonald’s by drones. The drone will release the package from a height of up to 10 meters and my job as an engineer is to develop a solution so that the package is protected in its fall.

For Drop 0, a package with the dimensions of 20cm (height), 25cm (length), and 20cm (width) was dropped from a height of 5 meters. Below is a photograph of the package:

The package will hold McDonald’s Burgers, sides, and drinks. Inside, items are organized like this:

The purpose of Drop 0 is to get baseline data about our package. The group developed a testing procedure so that we can be consistent on how data is collected throughout the design cycle.

  1. Check if iPads are both recordings
  2. Check if anyone is near the target. If so, ask them to move
  3. Hold the box right above the target and drop
  4. Take the box to the group table
  5. Record observations of the box and put them on the data table
  6. Record needed information from video data on the table

During the drops, I noticed that our drop is very accurate. The following data was collected:

The average time it took for our package to fall the 5 meters was 1.45sec. Using LoggerPro, we plotted out the fall of the package.

For the first time, we dropped the box from 5 meters above the force plate. The box fell down in a straight vertical line and landed on the force plate but immediately it bounced up and the box fell apart.

A force plate at the bottom of the drop was used to collect data on the impact force of the package. Our group was very accurate in dropping the package. As a project metric for accuracy, we want our package to drop within a maximum of 1 meter away from the target.

The force on impact was 98 N. As a project metric, we decided to reduce the force by 20%, which is about 170 N.

Summary: Project Metrics

Our team has decided that the three most important criteria to design towards are:

  • Metric 1: No spills – Nothing in the box can be spill or break.
  • Metric 2: Low force – Keep the amount of force as low as possible.
  • Metric 3: Accuracy – Land within 1 meter of the target.

Our group is now building the first prototype. I hope that we can decrease the amount of force and keep a soft landing.