Sola's Blog

The blog of truth

Express it: Develop and Plan

To think my project through, I decided of being a Capulet in the skit as we wanted to represent the Capulets and the Montagues as completely different people, we were required (kinda) to wear different colored clothes, with Capulets wearing all black and Montegues wearing blue, and also because I had many dark clothes, and I had to fight Aksel in the skit. The skit is about The Capulets and The Montagues from Romeo and Juliet fighting. I realized that incorporating the martial arts Muay Thai and Brazilian Ju-jitsu.

While making the skit, I realized that we had to accurately time our knaps and attacks, and we also had to choreograph our actions very precisely to make sure actors don’t “punch” each other the same time, resulting in confusion.

Learning Ju-Jitsu

In the photo above, we were learning how to control someone’s for the skit, by wrapping your arms around a person’s neck and pulling forward, you could also choke someone, though we had a fake version that was safe for the skit.

Project Collisions: Design 1 Blog Post

Our team constructed the first design using some string and a large piece of plastic.  Multiple drops took place and we noticed that the parachute wasn’t large enough to “puff up” and activate most of the times.

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

-Parachute didn’t open

-The package did not hit the target

Some things also went well. Big successes include:

The parachute succeeded in opening once and almost halved the speed, however, it also didn’t hit the target so we weren’t able to measure the force on impact

For our next design, we will improve upon the first prototype by increasing the size of the parachute and adding another parachute. other improvements include eliminating the possible areas the parachute can incorrectly open up so that the parachute will not fail to open.

January 2019 Field Study Blog Post

Today (January 25, 2019) I went to the Wenyu River to survey the conditions of the surrounding area

 

Testing of pH and turbidity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Date L1 pH L1 turbidity (NTU) L2 pH L2 turbidity (NTU) L3 pH L3 turbidity (NTU)
10-Sep 8.5 16.8 8.7 N/A 8.7 N/A
25-Oct 9 19.4 8 73 8.5 40
20-Nov (closed) (closed) 8 42.7 8 90
25-Jan (closed) (closed) 9 50 8 77

In January, the everything excluding the pH went lower than the last time we collected data. I notice that the data is following a trend of increasing and decreasing. Next time we collect data, I wonder if the turbidity will still increase?

Project Collisions: Drop 0

In Project Collisions, I am creating a system to deliver a Seasonal Fruit Package 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.

The Fruit Package

For Drop 0, a package with the dimensions of  20*20*30 cm was dropped from a height of 5 meters.

The package will hold strawberries, blueberries, tangerines/mandarins, kiwifruit, apples, bananas, oranges, and cherries.

How the fruits will be fit inside the box

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. Place fruits in a cardboard box (the container of strawberries and cherries go at the bottom, the apples, blueberries, and tangerines go on top).
  2. Close the lid of the cardboard box and secure said box with tape.
  3. Start recording using the iPads that are set up.
  4. Make sure that no one is in the marked area of where the package will land.
  5. Drop the box from the 5-meter mark, making sure to only release it without applying any force.
  6. After box lands, open the box and check if the fruits are damaged (see metrics of success).
  7. Review data collected on iPads.
  8. Record data in data table.

During the drops, I noticed that the force measurement in logger pro was going negative, I wonder if this is the normal force in action? The following data was collected:

The average time it took for our package to fall the 5 meters was 1.08 seconds. Using LoggerPro, we plotted out the fall of the package.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

During the fall the velocity climbed gradually until reaching a stable speed of about 5m/s downwards, then it hit the force plate area and bounced, the

A force plate at the bottom of the drop was used to collect data on the impact force of the package. Our group was 30 cm away from hitting the target. As a project metric for accuracy, we want our project to land directly on the force plate.

The average force on impact was 28.9 newtons. As a project metric, our group has decided to reduce the force on impact to 15 newtons.

Summary: Project Metrics

Our team has decided that the three most important criteria to design towards are accuracy, soft landing, and not bruising the fruits Below, each metric is described and the goals were determined by data from Drop 0.

  • Accuracy: We want our package to land right on the force plate.
  • Soft landing: We want our package to have a 50% reduction of force on impact (28.9 > 15)
  • No damage to fruits: We want to make sure that there isn’t any bruises or juice on or coming out of the fruits.

Our group is now building the first prototype. We hope that Design 1 will meet the metrics of success.

Project Collisions: Egg Drop

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 box frame composed of toothpicks, with a newspaper parachute attached to it via strings, the egg resided inside the box frame, fastened by rubber bands.

Then, working in a group, we decided to have a cylinder of paper, with balloons on either end of the cylinder, and a parachute made of newspaper that was attached to the cylinder of paper by paper clips. The egg was placed inside the cylinder between the two balloons.

As the egg was dropping, I had doubts about whether the design would actually work, as the parachute was relevantly small compared to the parachutes of other designs, many of which have failed.

Our design was unsuccessful because the parachute strings weren’t attached tight enough to the paper cylinder, and the disconnected from the design as we were dropping it, leading to a gruesome and painful death of the egg

Next time, I would make sure that the paper clips that fastened the parachute were tighter, or get something that is more suitable as a fastening medium.

Project Collisions is using the idea of drone delivery. During my research, I learned that drone delivery is already in the testing phase and most likely will be released to the public very soon. The delivery of blood interests me a lot because blood is very hard to contain without it going bad.

Through this project, I hope to learn how materials react at different velocities, and how a parachute will help with a soft landing.

Dustbound Chapter 1

Living in the desert as a scavenger is not easy, you have walk 5 miles to get a single bucket of water, kill for food, and there isn’t anything to do besides that. Rick finds himself in a dire life and death situation with Ghin, the disease that killed billions of people years ago. Now, there are only two choices, to sneak into The City, and get the antibiotic. or face a painful death that involves getting eaten from the inside.

Read Chapter 1 here

What? So What? Now What?

What?

I believe that overpopulation is the biggest problem in the world right now and needs to be solved immediately. I’ve recently read an article called “Humans Less Than 1% of Life on Earth, But Have Destroyed Half of Its Plants, More Than 80% of All Mammals”, wrote by Jessica Corbett on commondreams.org. The title is pretty clear, this means that even though we are only 1% of the biomass on earth, each one of us has a big impact on the world, which means that rich countries with low child mortality rate are seriously impacting the speed at of with the biomass on earth dies.

So What?

According to “How Does Overpopulation Affect the Environment?” on reference.com, Human population grows by 1 billion every 12 years, and is only going to grow faster if left unchecked, in addition to this, the earth’s resources are depleting very quickly which means that it’s just a matter of time until the earth runs completely out of resources and we’ll have to rely on other sources for food, water and energy. Us humans currently don’t have access other sources of resources besides the earth (what do you mean, “the moon”?). If the earth completely runs out of resources before we have found out another source of resources then the human race will go extinct, likely due to starvation.

Now What?

Many of us already know to recycle instead of just throwing trash into the other waste bin, but the best method of saving resources is to just not generate trash, because it also takes a lot of energy to recycle objects into pure materials, much more than just making new things. Instead of buying tons and tons of single use plastic bottles for that 500 ml of water, just put some tap water in a reusable water bottle. Instead of getting plastic bags that you’ll throw away minutes after you’re done shopping, just get a cloth bag that you’ll most likely use for several months before it breaks, plus, cloth is an organic material (most likely).

soo the thing is…

just try not to produce trash

Foragers to Future

Foragers to Future Presentation

Picture Version (2560*1440 Resolution)

Sola Chan G7 Big Data Essay

Sola Chan G7 Big Data Essay

If you were given a choice to choose one of two things: privacy, and convenience/quality of life improvements. Many will choose privacy over convenience, but considering how often it is used in daily life, is it worth it to make the change? Big data brought us many benefits, though those benefits come with a cost, however, with the benefits being safety and convenience, it will be very hard to put it down as it has become a crucial part of our everyday lives.

First, one of the most important uses for big data is that it can identify suspects and criminals just by using the facial recognition software, as seen in the video “Next Level Surveillance: China Embraces Facial Recognition” by the Wall Street Journal, many of the security cameras (if not all) in China are connected to a giant mainframe in which the police can look at the footage and track who is in the current scene, the software can even predict relatives or friends of people by learning who goes where very often and with who. The system has every single person in China and therefore can track every person in China. Many residents in China are worried about how the Chinese government always knowing where they are. However, the Chinese government has no reason track you unless you did something illegal. Moreover, the system has proved very effective, as seen in the video “China: ‘the world’s biggest camera surveillance network’”, it took only 7 minutes to find and locate the host of the show, John Sudworth, which was marked as a suspect in China’s surveillance system for the sake of the video. Armed police quickly gathered around him as he strolled into an open area after confirming his identity. This technology could be used to massively decrease the crime rate in China if most of the population are informed about this new technology.

With the benefits come with the cost, as with all things, but the benefits versus the cost is like an anvil versus a feather. As Kenneth Cukier said in the video “Big Data is Better Data” in literally the first sentence, he said: “America’s favorite pie?” and the Audience replied “Apple”, “How do we know this? Because of data.” he added. Grocery stores can collect your data to analyze what you like to buy and recommend new picks for you, making everything much more convenient. Companies can also collect your data to see what’s wrong with their services and product and see how you use it, so they can improve their services and products, with the cost of your data.  But this data isn’t very important, most of the times it’s about when and how you use it, as nobody is going to store top-secret FBI spreadsheets in a Fitbit or something, so no one needs to worry.

Big data seems like it’s a relatively new piece of “technology”, But during normal web browsing, and you can already see it in action. I don’t even have to cite anything, just go on some random webpage. If you watched something on YouTube about computers, there’s no doubt that some computer ads will appear on your screen after you scroll for a while. Coincidence? In fact, it’s not. YouTube can collect your data on the videos you’ve watched and sell it to other ad companies, then those companies will give you ads on the topic you watched. Therefore, everyone makes money, it’s a win-win situation for both companies, but maybe not too much for you. However, YouTube does this for income and other reasons. Such as recommending videos for you. When was the last time you switched your focus or videos completely just from the recommendation bar (such as suddenly switching from… say “Linus tech tips”, to some kind of “Bright Side” fun facts video)? Probably not this month, unless you still use the old way of browsing YouTube. It would be a pain to have this method of browsing literally everything just, removed, imagine that.

Big data is already in our everyday lives, even if you don’t notice it, using the solution of completely removing it from our world will be an inevitable mistake that many will regret, if not all people that incorporate technology in their daily lives. And contrary to popular belief, big data, of course, won’t take all your data, so you can say that the title is slightly misleading, being called “big data” although it usually takes about only 5-10% of the total data you generate on the internet. And many of the things you post online is usually impossible to remove, as by registering an account on any site and clicking to the “I agree to the terms of agreements” or the “I have read and understood the privacy policy and will use this piece of Software/Webware responsibly” checkbox, you already agreed that they can use your data for any purposes they want. Even more, you’ve probably read the piece of text usually located at the bottom of a webpage saying “xxx.com is not responsible for any illegal crime, loss of money or anything else committed with this website”, so why complain when you already agreed? Of course, no one reads the privacy policy, but at least you should think about what they can and cannot do using common sense, right? In the end, you should learn to just “Relax, and learn to love big data.”

Make It: Reflect and Exhibit

Final product picture:

 

 

 

 

 

 

Something that was particularly hard to do was to edit the audio bytes and finding the right balance of sound in order for it to sound good. And I think during this week my productivity was put to the test (not that I am productive), during the last few days I was 100% all in into making the project, and it turns out that this kind of working is called procrastinating. After finishing the project, all of us was like: “FEELS GOOD MAN”

Looking back at the project, I kind of regretted the decision of procrastinating at unbelievable amounts. Next time I will certainly be more productive.

Final Podcast Link:
http://www.buzzsprout.com/217829/827485-the-amazing-countries-palau-vietnam-israel

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