Science

Chicken Wing Dissection

In Science we recently dissected a chicken wing. I was more comfortable with dissecting the chicken wing (removing skin, muscles, tendons, ligaments) than what I expected.

I used collaboration, communication, and organisation skills to successfully complete this dissection. For collaboration I worked with my partner in sections to remove the parts in the chicken wing. For communication, I talked with my partner about where to remove and where to keep in the chicken wing, and if any of us got uncomfortable, to reassure them and to let the go take a break, and continue the dissection while informing them when they arrive. I used organisation skills to make neat piles of the skin, muscles and tendons, and to also follow the instructions by order.

Here are some process pictures and time lapse of the skin removal process.

Pictures :

Video (skin removal only) :

Observations :

I noticed when I extended the chicken wing out (our chicken wing was not very flexible) I could see the bicep ,extending and the tricep contracting. I also noticed that a chicken’s skin is bumpy (and slippery), similar to a goose, which explains why the bumps on your arm when the temperature lowers, is called goose bumps. The chicken wing is similar to the human arm, as we have triceps and biceps, a humerus, both the radius and the ulna on the lower arm, and a shoulder joint and elbow joint.

One quite apparent difference is the tip of the wing, in our case, we have hands, to grip onto things, like if we were to lift weights. In the chickens case, they have a metacarpus, but not a carpus, and their phalanges is used to attach feathers, instead of having fingers. We also do not have a very long tendon that extends from the shoulder to the end of the radius and ulna. That helps the wind catch in the skin between the bone and the tendon, so the chicken can fly (also feathers). But, we all know that chickens cannot fly for long periods of time, one thing that might affect their flight is their weight, pulling them down. For example, our chicken had many fat glands in the wing, and big muscles which is the main source of weight to a chicken.

In conclusion,  humans and chickens have a very similar bone structure and muscle group, but each is modified to be slightly different from one another.

 

The impact of devices on the Congo

The device I am researching is an iPad, produced by Apple.inc, and it costs 499-699 USD.

An iPad can connect to the internet wirelessly, you can Face time and call people and email, and do many more things if you buy an app for it .(games) It cannot physically do anything but it can electronically do many many things.

The materials used in this device are from the Congo and are elements like tin, tungsten, tantalum, gold, indium, oxygen, metal, bronze, aluminium, holmium, ogcopper, and compounds like glass and plastic .These materials make The case surrounding the cell phone , glue, the screen, motherboard memory chip, camera, and many more parts.These parts help make the I-Pad’s batteries more efficient, to make the I-Pad to buzz silently, to make the parts stay together, and,  It also makes the display data last longer too.

These parts are useful, but they can cause some damage too. Here are some things that impact on the gathering of these materials.

Economic waste : If you throw away your device you are wasting all of the people in the Congo’s hard non pay work consumers are most likely to get a new device in only 18 months, making it more possible for the consumer to throw away their old device

Economic growth : A good thing is that the more electronics you buy the more money goes into the government and to the company… if the government gets more taxes, more schools will be better quality and the teachers, firemen, policemen, will get better pay and would want to do the work more.

Safety : If you force the people to work hard and not get any money they will eventually be in danger of death because of the low resources needed to live.

Environmental : Consumers are most likely to get a new device in only 18 months, making it more possible for the consumer to throw away their old device. Because of waste of the materials used in phones, the environment will be full of waste.

Population : There was over 5.4 million Congo civil conflict deaths , more deaths than the US revolution, US civil war , Vietnam war, and the Korean war because of people refusing to work in the mines without getting payed and getting shot or, just simply being killed making the population decrease largely, just because people are forcing the people in Congo to work and get the materials that i listed before without pay.

What can we do to help?

Set up a campaign : Set up a campaign to save your devices. Do not waste your devices when you could always give them to other people, if it is working completely fine and you just want to upgrade, throwing it out is not the solution.

Talk to the government in the Congo :Talk to the government in the Congo ( set up a protest ) and try to make the laws more secure and productive. You could talk to them about illegalizing work without pay.

Force the government or company : Force the company to give money by protesting to make the people working in the Congo work with pay, if not, force them to do so by threatening to not buy their products anymore. Or, expose the company to public and make their products not sell.

Resources :

Simpson, Cam. “The Deadly Tin Inside Your Smartphone.” Bloomberg Businessweek. Bloomberg, 23 Aug. 2012. Web. 01 Oct. 2014.

Cavette, Chris. “Printed Circuit Board.” How Printed Circuit Board Is Made. Plasma Parylene, 2016. Web. 04 Nov. 2016.

“Businessweek.” Bloomberg.com. Ed. Bloomberg. Bloomberg, 2016. Web. 04 Nov. 2016.

“Jeff Suovanen.” I-Pad Air LTE Teardown. Ed. Ifixit. IFIXIT, 11 Nov. 2015. Web. 04 Nov. 2016.

AppleInsider. “Apple’s Aluminium Strategy Aids Shift to Greener Products.” AppleInsider. Apple Insider, 2016. Web. 04 Nov. 2016.

“Battery (electricity).” Wikipedia. Wikimedia Foundation, 10 Jan. 2014. Web. 02 Oct. 2014.

<https://www.google.co.jp/webhp?sourceid=chrome-instant&ion=1&espv=2&es_th=1&ie=UTF-8#q=where+is+aluminum+mined>.

Validakis, Viki. “Government Wants Answers after 17 Deaths in Mining.” Australian Mining. Australian Mining, 30 Oct. 2014. Web. 04 Nov. 2016.

Http://www.miningaustralia.com.au%2Fnews%2Fgold-mine-collapse-kills-17-people>

Archen, Theme Park. “The Delphi Project.” The Delphi Project. DELPHI, 2007. Web. 04 Nov. 2016

“Congo’s Conflict Minerals.” Conflict Minerals in D.R. Congo

War Child – The Charity for Children Affected by War. Ed. War Child. War Child, 2016. Web. 16 Nov. 2016.

Source 44. “What Are Conflict Minerals?” Source Intelligence. AVALAUNCH, 2016. Web. 16 Nov. 2016.

Hyun Seo. Hyun Seo, 2014. Web. 04 Nov. 2016.

Apple.inc. “I-Pad – Compare Models.” Apple. Apple Store, 2016. Web. 23 Nov. 2016.

Skip to toolbar