User:Ruskda01/enes100/Cornstarch

My First Task
Record what you are planning on doing for the team during the zero weekend.

Summary of actual work over first weekend
Over the weekend, I planned to read the last groups team page to get a better understanding of what the cornstarch project is about. The goal is to go over each member's page, and find what information helped them. I will also use this is an opportunity to find out what mistakes they made and how we can avoid them.

Week1 Narrative
First I went to the old groups team page: Previous Cornstarch Group. I began looking at each individuals pages to find out some information

Overall, the group made some progess on the water and cornstarch ratios, and they began building the circuit to power the oscilators.

So I went online to look for some cornstarch projects that used oscillators and i found these. Video 1 The person in this video used a computerized tone generator to make the different notes and sounds created by the oscillator.

Video 2 Video 3 I personally thought that this video was amazing. It showed me exactly what we needed to do to get the cornstarch moving, and how the finished project should look like. (Fast forward to 7:30 for cornstarch stuff)

My Second Task
I plan to begin working with the circuit for the oscilattor.

Summary of actual work over second weekend
Over the weekend, I planned on finding the cornstarch ratios to create a non-newtonian fluid.

Week2 Narrative
For a soltuion to be considered a non-newtonian fluid, the solution must become solidified when pressure is applied and liquified when less pressure is applied. I began looking online to see the ratios of cornstarch and water that other people had used previously. After searching, I pretty much decided that the best way to find the proper ratios was to due it myself.

First I gathered my materials, and added 1/2 cup of cornstarch and 1/2 cup of water. The solution was not a non-newtonian fluid because when I put my hand into the solution it did not solidify.

The first ratio had too much water, so I added 1 cup of cornstarch and kept the 1/2 cup of water. This solution was a non-newtonian fluid, and it was extremely thick. When pressure was applied the solution become very hard, and when I let go, it became a liquid again. However, this ratio made the cornstarch solution extremely thick.When I tried to apply pressure the solution became very hard, and it actually crumbled in my hands. I want a solution that sound waves would easily travel through, so I added more water to the next solution. Cornstarch ratio 2

To balance make the solution a little more gooey, I changed the ratio to 1 cup of cornstarch and 3/4 cup of water. I was not sure if this solution was a non-newtonian fluid because it was very watery and it became a little more solid when I put my hands into the mixture. Cornstarch ratio 3

The final ratio I mixed had 1 cup of cornstarch and 2/3 cup of water. I think this solution would be the best out of the four because it isn't too thick or too thin. When I used the stirring stick to apply pressure the solution was basically solid but when I moved it around in the bowl, it was a liquid. I also held down part of the solution with the rod while I moved the bowl around. Notice how the area where the pressure is being applied is solid, while the rest of the solution is a liquid. This meant that this ratio was perfect to create a non-newtonian fluid. 4th cornstarch ratio

My Third task
Next week, I plan to fixing the subwoofer so that my partner and I will be able to test the cornstarch with the different frequencies.

Summary of actual work over third weekend
How is what you did different than what you planned?

Week3 Narrative
Tell a detailed story describing what you did for your team over the weekend.

My Fourth task
Record what you are planning on doing for the team during the fourth weekend.

Summary of actual work over fourth weekend
How is what you did different than what you planned?

Week4 Narrative
Tell a detailed story describing what you did for your team over the weekend.

Complete Team Page
Fill out the Team Form (should have already copied the form, created the team page, linked to it and started filling it out).