Pringle Camera

Light and Sound is a course about how we see and hear the world and how we measure time. We were assigned to build, sketch, and explain how a pinhole camera works using STEAM principles. The purpose of this action project was to demonstrate our understanding of STEAM principles we studied which were refraction, wavelength, frequency, electromagnetic spectrum, and basic trigonometry. I am proud of my photo-gram picture, it is very modelesque!

Photo-Gram, GN 2015

A pinhole camera is a lightproof box with a tiny hole in one side. The tiny hole acts as the lens. The light rays from the sun enter into the tiny hole. They continue traveling until they hit the photo-sensitive paper. After it is exposed to light, the photo-sensitive paper is put into several chemicals which help develop the image that was created. This is why it is important that our box be completely lightproof.

Pinhole Camera Photo, GN 2015

This process illustrates how light is a particle. Light carries energy. The photo-sensitive paper reacts upon receiving photons (the quantum of light) especially visible light (electromagnetic spectrum). When photons heat the photo-sensitive paper, electrons get emitted from the surface. Only a particle can affect the quantum level of things. It also behaves like a wave because when two light rays come in contact, they don't bounce off of each other which would imply that light behaves as a particle. This doesn't illustrate refraction because refraction is the bending of light rays when they enter a transparent medium that slows its speed, whereas light travels straight through a pinhole.
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Pinhole Camera, GN 2015

It's about 7 inches across from the lens to my photo paper. My toy person is about 11 inches tall. It's about 5.75 inches down from my pinhole to the bottom of my camera, so if I created similar triangles, the equation would be: 5.75 / 7 = 11 / X, where X is the distance between the back of my camera and the front of my toy. Since X = 13.391 (11 x 7 / 5.75) the minimum distance between my camera and my toy should be 13.391 - 7 = 6.391 inches.

Sketch, GN 2015

Using the Pythagorean theorem, I can calculate the hypotenuses of these triangles: 5.75^2 + 7^2 = (1)C^2, so (1)C = 9.05, and 13.39^2 + 11^2 = (2)C^2, (2)C = 17.328. 17.328 - 9.06 = 8.268. I can also use tan ^-1 of (5.75/7) to find the angle of the light hitting the back corner of my camera, which is 39.40 degrees. Since these are right triangles, the other angle is 180 degrees - 90 degrees - 39.40 degrees = 50.6 degrees.

My shutter speed (how long my lens was open) was 4 minutes. This didn't help much because my pinhole was so small, which didn't allow many light rays to enter. If I could do this over again, I would make a bigger pinhole to allow more light to go through.

Aluminum Cans

BKJ (Earth), 2014

Humans throw so much away with so little thought as to where that trash is going and how it affects us in the future. In my Design and Engineering course, we were assigned to collect samples of a product that was being wasted and assemble the samples into a visual representation of an issue. The purpose of this action project was to create something that represents and illustrates a global issue we are facing: material waste. Our waste material was aluminum, particularly aluminum cans. I learned and appreciate trial and error and I am proud of the way my partner and I worked together.

A beverage can is a metal container designed to hold a fixed portion of liquid such as carbonated soft drinks, alcoholic beverages, fruit juices, teas, herbal teas, energy drinks, etc. Beverage cans are made of aluminum (75% of worldwide production) or tin-plated steel (25% worldwide production)(Wikipedia).

Aluminum is a slippery-white metal and the second most abundant metallic element in the earth's crust. It weighs about 1/3 as much as steel, and is remarkable for its excellent corrosion resistance, durability, ability to be easily machined or cast and its volumetric mass density (density) (Wikipedia). Some of the uses for aluminum are in electrical transmission, packaging, and transportation.

Here are some interesting facts about aluminum waste from Lehighcounty: 

• It takes about 80-200 years for an aluminum can to biodegrade.
• In 2012, 55 percent of aluminum beer and soft drink containers generated were recycled, which is about 0.7 million tons.
• The largest source of aluminum in the MSW (municipal solid waste) stream is used beverage containers and other packaging containers.
• There is no limit to the amount of times aluminum can be recycled. 
• It is estimated that over the past twenty years, we've trashed more than 11 million tons of aluminum beverage cans worth over $12 billion on today's market.
• Americans throw away enough aluminum every three months to rebuild our entire commercial air fleet.

"Liquid Candy: How Softdrinks Are Harming America's Health ~ CSPI." Liquid Candy: How Softdrinks Are Harming America's Health ~ CSPI. N.p., n.d. Web. 23 Oct. 2014. 

Our installation shows a model earth made almost entirely out of aluminum beverage cans, glue, strings, and a Styrofoam ball as our base. Our installation depicts a model earth with silver representing water, green and brown representing earth. The strings represents how many times the total number of aluminum cans wasted in 2012 would go around the earth. There are 5 string around our earth installation, each string represents 7385.285408 times the number of cans goes around the earth. This piece was inspired by the amount of soda cans our school wastes each year, which is roughly about 29,850 aluminum cans. On average, a person will use 597 cans of soda pop each year.

BKJ and GN (Earth), 2014

BKJ and GN (Earth), 2014

Logistics for cans used in our installation:
2 Diet coca cola cans
7 Root beer cans
4 Sprite cans
1 Coca cola cans
1 Sparking water can
* All of our materials comes from either staffs or students from GCE (Global Citizenship Experience).

Calculations: 
On average each American drinks 597 cans of soda a year. The average life expectancy of an American in 2012 was about 78 years (World Bank). This means that over a lifetime, an American would drink 46566 cans of soda. In 2012, the United States population was 312,780,968 (US. News). Number of aluminum cans of soda drank in 2012: 312,780,968 x 46566 = 1.456495856e13 (14,564,958,560,000 cans).

Amount of times the number of aluminum cans went around earth calculations: 
- Earth's circumference: 24,901 miles.
- Conversion to miles/space: 14,564,958,560,000 cans x 4 (height of a can) x 12 ft/5280 = 919504959.6 miles
- Number of times United States' waste of 2012 goes around the earth: 919504959.6 miles/24,901 miles (circumference of earth) = 36926.42704 times.

Recycling is an important part of a sustainable lifestyle and is a solution to this aluminum waste problem. It’s important for the future of the planet that we all live sustainably. Recycling aluminum saves an enormous amount of energy, because the aluminum is already in its metallic state. Recycling was a low-profile activity until the late 1960's when the growing use of aluminum cans brought it to the public's attention.

Here are some facts about the importance of recycling aluminum:

• Tossing away an aluminum can wastes as much energy as pouring out half of that can's volume of gasoline.
• Recycling one aluminum can saves enough energy to run a TV for three hours, this is the equivalent of a half a gallon of gasoline.
• Making beverage cans from recycled aluminum cuts air pollution by about 95%.
• The pollutants created in producing one ton of aluminum include 3,290 pounds of red mud, 2,900 pounds of carbon dioxide (a greenhouse gas), 81 pounds of air pollutants and 789 pounds of solid wastes.

Works Cited:

1. "Aluminum Recycling Facts." Aluminum Recycling Facts. N.p., n.d. Web. 21 Oct. 2014.
2. "Aluminum, Common Wastes & Materials." EPA. Environmental Protection Agency, n.d. Web. 21 Oct. 2014. 
3. Aluminium. (2014, October 15). In Wikipedia, The Free Encyclopedia. Retrieved 02:47, October 24, 2014.
4. "Chemical of the Week -- Aluminum." Chemical of the Week -- Aluminum. N.p., n.d. Web. 23 Oct. 2014. 
5. "Aluminum Statistics and Information." USGS Minerals Information: Aluminum. N.p., n.d. Web. 23 Oct. 2014. 
6. "Liquid Candy: How Softdrinks Are Harming America's Health ~ CSPI." Liquid Candy: How Softdrinks Are Harming America's Health ~ CSPI. N.p., n.d. Web. 23 Oct. 2014.
7. Robert Schlesinger. "U.S. Population 2012: Nearly 313 Million People." US News. U.S.News & World Report, 30 Dec. 2011. Web. 26 Oct. 2014. 
8. "Life Expectancy at Birth, Total (years)." Data. N.p., n.d. Web. 26 Oct. 2014.

 

A Dream of Science

In my Rhetoric course, we were assigned to articulate a dream that we have for our city and write a speech about it. We identified obstacles to our dream and envisioned solutions to them. We drafted, edited, and revised our three drafts of our speech. The purpose for this action project was to write a persuasive speech about an issues you feel strongly about facing your community. The topic I felt most strongly about was women and minorities in STEM. Science affects us all, and we need to support students who are interested in science and change some of science stereotypes.
Below is my Speech!

"Chicago | US2020." Chicago | US2020. N.p., n.d. Web. 18 Oct. 2014.

AUDIO: