Monthly Archives: November 2018

China’s One-child Policy – Jason

CHINA ONE-CHILD POLICY

(Chinese family).

Studying China’s one-child policy has long been my aspiration because of its unparalleled uniqueness to other population control policies. As a country with the world’s second-biggest economy and the largest population than any other nations existed in human history, China’s domestic affairs have tremendous effects also on international affairs (“GDP, current”). Therefore, understanding China’s demographic trend, as well as the reason behind the country’s recent decision to end the policy in 2015, not only enriches my learning of global demography but also educates me as a citizen of the international community.

Continue reading

What Makes a Game Great

This week we took a break from the technical practice and stepped in to a new realm. What truly makes a game fun to play? In class this week we talked about game design, less about creating a game, and more about designing one. In class we sat and discussed, what made our favorite games special, and what did we dislike about them?

Most people chose series of many games, or a single game that has been updated over several years, which allowed us to discuss our likes and dislikes over time.  People mostly chose well enjoyed series like Animal Crossing or Fallout. I personally chose the Pokemon DS games as well as World of Warcraft (WoW), two very different games. Though a theme rang true among not only my games, but most other people’s, the games had gotten easier and easier over the years, to the point that some titles became hardly fun.

 

As I reflected on my own choices, I noticed that my main problems with the games was the fact that they had become way to easy. I gave up playing the Pokemon DS series about 5 years ago, because it had gotten to the point I could play through the new games without ever trying. Then when I thought on WoW, which I do still play, I found myself upset with the new player catch-up systems. In simple, the game feels unrewarding because new players can catch up to veteran players, even without very much skill. This leaves the player pool Diluted in terms of skill, and also unrewarding for Veterans because new players will catch up to our hard work very easily. WoW is approaching the point of “Why Bother?” simply because it is as easy to be very casual as it is to be mildly hardcore.

               

I think that the idea that video games have gotten easier over the past decade is true. Most games now can be picked up by anyone, and completed relatively quickly and without struggle. I personally feel modern video games often lack the feeling of accomplishment that comes with working hard at something, and then finally succeeding,

Pokemon Pearl. Game Stop, http://www.gamestop.com/ds/games/pokemon-pearl/64185.
Accessed 6 Nov. 2018.

World of Warcraft. Wikipedia, en.wikipedia.org/wiki/World_of_Warcraft. Accessed
6 Nov. 2018.

Assembling My Experiment and Beginning Water Stabilization -Nick

This has been the most exciting two weeks so far in the duration of this project. This is because all of my materials arrived, so I was able to start to assemble my experiment. This also meant that all of my knowledge about my experiment and my procedure because I needed to properly compile all of my materials and place everything with intention and purpose.

Continue reading

Hot off the PRESS!

Whether it be through other organizations or through news outlets themselves, being featured through the news and through various platforms is a major accomplishment for The Girl Narrative. I was recently interviewed for a podcast called Nonprofit Jenni, who has thousands of listeners across America. Today, I’ll be talking about what it means to be in the news and why these features are so big for us.


screenshot-114-e1541469154662.png

The Girl Narrative was recently featured on the Nonprofit Jenni Show, a podcast streaming through Spotify, Apple Podcast, and many other platforms that talks to CEOs and other Executive Officers around nonprofits, volunteer work, and the nitty-gritty ugly work behind the businesses (Click the link to see more about the Nonprofit Jenni Show).

I have talked previously about how we have been featured on many other organizations pages in my previous blog We’re In a Serious Relationship…Actually a Few, where I talked about how our article about Alana Mayfield was featured on Go Live Girl’s page. However, this new medium for us (podcasts) as introduced The Girl Narrative to an entirely new group of people who maybe prefer to hear articles instead of reading them.

Let me try to put this into perspective. Say, for example, you are a student who is in a deep study of biology. You have been featured on other students and nonprofit pages. Then, after so much of your work, you have been asked to be interviewed by an organization that has thousands of listeners, and this interview will be streamable online. This massive step is exactly what this means for The Girl Narrative; a start to being introduced to new spheres of people and the start of more collaborations.

screenshot-115.png

In this interview, I talked with Jenni about how young people are beginning to be deeply involved with other nonprofits both domestically and internationally, and what other organizations can do to engage this new, driven generation. If you would like to hear my interview, you can look for the Nonprofit Jenni Show on Spotify, Apple Podcast, or on Google Play and look up Season 3 Episode 2: Nontraditional Volunteers You May Have Forgotten About.

When I first heard the interview (I’m not gonna lie)…I cringed. I hated hearing myself speak. I felt as though I was clunky and awkward, and I hated it. But I need to remind myself; I have only just started. I am not a seasoned professional in interviews and oral press releases; I am just starting.

This has been a recurring theme that I have found that I will undoubtedly write about later; I am constantly disappointed in myself as a CEO. I feel as though I am never doing enough for my nonprofit and that all of my nitty-gritty work is not getting me anywhere. But the truth is I could never do enough for my nonprofit. I could always be doing more, being more, and writing more, but because I am a student and a naturally flawed human, I can’t do all of the things that I want to do.

So when I begin to critique myself whether it be through my upcoming news stories either about myself or The Girl Narrative or through my own performance as a CEO, I remind myself to take a deep breathe and be patient; I am not the perfect CEO and I never will be. But I want to keep working to be better because that is what’s important for The Girl Narrative.

Sabrina Schoenborn

CEO & Founder of

The Girl Narrative


Citations

Schoenborn, Sabrina B. “‘Hear Our Girls: Alana Mayfield’ by Sabrina Schoenborn, The Girl

Narrative.” LiveGirl, golivegirl.org/livegirl-blog/2018/8/15/hear-our-girls-alana-mayfield-by-sabrinaschoenborn-the-girl-narrative.

Hargrove, Jenni. “The Nonprofit Jenni Show.” Nonprofit Jenni, www.nonprofitjenni.com/.

Hargrove, Jenni. “Jenni Hargrove (@Nonprofitjenni) .” Instagram,

www.instagram.com/nonprofitjenni/.

Hargrove, Jenni. “Nonprofit Jenni Show.” Spotify,

open.spotify.com/show/0GuqfcmXVxLoBZekm0Y6wg?si=Vg17cqIxSuiq-AfXnHUU7Q

Medicine in the Late Middle Ages– Yuchen

Continuing from my last blog post on medicine during the High Middle Ages, this blog post still follows the similar format, covering medicine during the Late Middle Ages in Europe, the Middle East and China. While doing my research, I was surprised by the extent of which Islamic Medicine influenced Western medicine. Therefore, a significant portion of this blog post is about medicine in the Middle East.

Late Middle Ages

Europe–

As a lasting influence of the Crusades, trade and communication between the European world and the Middle East increased drastically. The wisdom of Islamic medicine (the science as well as the philosophies) from translated medical texts was incorporated into mainstream Western medicine.

Screen Shot 2018-11-04 at 22.35.13

Flagellants in the Netherlands scourging themselves in atonement, believing that the Black Death is a punishment from God for their sins, 1349.

Despite various advances achieved earlier in the High Middle Ages, in the year 1347, Europe was heavily struck by the deadly disease: the Black Death (or the bubonic plague). Spread by infected flea, this deadly contagious disease wiped out more than half of the European population. One contributing factor to the spread of the disease was the unsanitary condition of medieval cities– a cause that was not well-understood by doctors at that time, resulting in ineffective treatments such as diet modification, usage of essential oils and prescription of elixirs attempting to cure the contagious disease. Because of the lack of medical understanding of the disease, people panicked and turned to religion. (Medical)

 

Middle East–

Medicine in the Islamic world continued to develop and expand, making significant contributions to the field of medicine during the Islamic Golden Age.

Screen Shot 2018-11-04 at 22.13.46

Imaginary Portrait of Ibn Al-Nafis

Ibn Al-Nafis, an Arab physician, is considered “the Father of Circulation/ Circulatory Physiology for his important writings and anatomical discoveries. In his most famous book– Sharah al Tahreeh al Qanoon (Commentary on anatomy of the Canon of Avicenna), he made detailed description of the pulmonary circulation of blood which  contradicted Galen’s widely accepted description that the blood is passed from the left to the right ventricle through invisible pores in the septum.

Ibn Al-Nafis believed that the blood flows from the right ventricle through the pulmonary artery to the lungs, then flows through the pulmonary vein to reach the left ventricle. His pioneering discovery contributed to later development in the understanding of the circulatory system and was 300 years before the observation of William Harvey in Europe, who had previously been credited with the discovery of pulmonary circulation. (Akmal)(“Ibn”)

Screen Shot 2018-11-04 at 22.14.11

Galen’s Cardiopulmonary System

Screen Shot 2018-11-04 at 22.14.51

Explanatory Drawing of Ibn Al-Naifs of Pulmonary Circulation of Blood

 

 

 

 

 

 

 

 

 

 

 

 

A large number of Bimaristans, or hospitals, were built in Islamic cities. Surgeries such as those to remove cataracts and treat trachoma, cauterization as well as various sutures were frequently performed. The structure and concepts of these hospitals closely resemble those of modern hospitals, having separate wards for males and females, an organized system of medical records as well as standard protocols for institutional and personal hygiene (Majeed). Medieval Islamic doctors also went above and beyond merely treating the physical. General wellness and dermatology were given considerable attention. Bathing culture continued to be an essential component of people’s social life and an important contributing factor to the improvement of general hygiene. (Williams)

 

China-

Under the umbrella of the Song Dynasty, Chinese medicine continued to thrive, making new progress, especially in the fields of pediatrics and gynecology. At the same time, exchange of medical knowledge between the East and West reached its peak. Medical texts and materials from Korea, Japan, Southeast Asia and the Middle East were frequently exchanged via trade routes, resulting in the incorporation of foreign knowledge and practices into Traditional Chinese Medicine and the other medical traditions’ adoption of Traditional Chinese Medicine practices. (“神农氏”)

In Islamic Medicine, herbal drugs imported from China via the Silk Road were frequently prescribed to patients.

Screen Shot 2018-11-04 at 22.30.13

Screen Shot 2018-11-04 at 22.30.30

This article explores in-depth the interactions between several traditions of medicine such as Traditional Chinese Medicine, Traditional Arabic and Islamic Medicine, Ayurveda and Kampo–tradition of medicine with basis in Traditional Chinese Medicine but adapted to Japanese culture (Azaizeh).


This temporarily concludes my research on medieval medicine in three representative regions. Overall, medieval medicine in Europe experienced a stagnant state during the Dark Ages and revitalized during the High Middle Ages before being heavily struck by the Plague, while Islamic and Chinese medicine were able to develop under relative stability and prosperity.

In the next blog post, I will look at medicine during the Renaissance era, specifically the influence of the arrival of the printing press on publication of medical texts in Europe and the decline of the Islamic Golden Age.

This video is about Ibn Al-Nafis, the forgotten physician mentioned previously in my blog post. The rediscovery of his manuscript describing pulmonary circulation strengthened my belief that history is never a static field of study. It is constantly updated by new and surprising discoveries.

 

Works Cited

Akmal, M., et al. “IBN NAFIS – A FORGOTTEN GENIUS IN THE DISCOVERY OF PULMONARY BLOOD CIRCULATION.” US National Library of Medicine National Institutes of Health, www.ncbi.nlm.nih.gov/pmc/articles/PMC2964710/

Azaizeh, Hassan, et al. “Traditional Arabic and Islamic Medicine, a Re-emerging Health Aid.” US National Library of Medicine National Institutes of Health, www.ncbi.nlm.nih.gov/pmc/articles/PMC2892355/.

Beeden, Alexandra, et al., editors. The Definitive Illustrated History. New York, DK, 2016.

Bivins, Roberta E. Alternative Medicine?: A History. E-book, Oxford, Oxford UP, 2010.

D., Mitchell P., et al. “Anatomy and Surgery in Europe and the Middle East during the Middle Ages.” Apollo- University of Cambridge Repository, www.repository.cam.ac.uk.

Goldiner, Sigrid, editor. “Medicine in the Middle Ages.” Metropolitan Museum of Art, Jan. 2000, www.metmuseum.org/toah/hd/medm/hd_medm.htm.

Keys, Thomas E. “The Earliest Medical Books Printed with Movable Type: A Review.” The Library Quarterly: Information, Community, Policy, vol. 10, no. 2, 1940, pp. 220–230. JSTOR, www.jstor.org/stable/4302707.

“Late Medieval and Early Modern Medicine.” U.S. National Library of Medicine, www.nlm.nih.gov/exhibition/islamic_medical/islamic_14.html.

M, Loukas, et al. “Ibn al-Nafis (1210-1288): the first description of the pulmonary circulation.” US National Library of Medicine National Institute of Health, www.ncbi.nlm.nih.gov/pubmed/18481505.

Majeed, Azeem. “How Islam changed medicine Arab physicians and scholars laid the basis for medical practice in Europe.” S National Library of Medicine National Institutes of Health, 24 Dec. 2015, www.ncbi.nlm.nih.gov/pmc/articles/PMC1322233/.

Medical News Today Editorial Team, and Daniel Murrell, editors. “What is European Medieval & Renaissance Medicine?” Medical News Today, Healthline Media UK, www.medicalnewstoday.com/info/medicine/medieval-and-renaissance-medicine.php. Accessed 5 Jan. 2016.

Palleja De Bustinza, Victor. “How Early Islamic Science Advanced Medicine.” National Geographic, National Geographic Society, www.nationalgeographic.com/archaeology-and-history/magazine/2016/11-12/muslim-medicine-scientific-discovery-islam/?user.testname=none.

Ranhel, André Silva, and Evandro Tinoco Mesquita. “The Middle Ages Contributions to Cardiovascular Medicine.” National Center for Biotechnology Information, U.S. National Library of Medicine, 1 Apr. 2016, www.ncbi.nlm.nih.gov/pmc/articles/PMC5062728/.

“Silk Road.” Encyclopedia Britannica, www.britannica.com/topic/Silk-Road-trade-route.

Siraisi, Nancy G. History, Medicine and the Traditions of Renaissance Learning. E-book, U of Michigan P, 2010.

Williams, Elizabeth. “Baths and Bathing Culture in the Middle East: The Hammam.” In Heilbrunn Timeline of Art History. New York: The Metropolitan Museum of Art, 2000–. http://www.metmuseum.org/toah/hd/bath/hd_bath.htm (October 2012)

Wood, Clair G. “A History of Healing Therapies: Western, Eastern and Alternative Approaches.” Bibliographic Essay, PDF ed.

“神农氏” [“Shen Nong”]. 神农, June 2003, www.shen-nong.com/eng/history/index.html.

Images:

“Explanatory Drawing of Ibn Nafis.” Muslim Heritage, www.muslimheritage.com/article/ibn-al-nafis-pulmonary-circulation.

“Flagellants in the Netherlands Scourging Themselves in Atonement.” Britannica, www.britannica.com/event/Black-Death.

“Galen’s Cardiopulmonary System.” Muslim Heritage, www.muslimheritage.com/article/ibn-al-nafis-pulmonary-circulation.

“Imaginary Portait of Ibn Al-Nafis.” Muslim Heritage, www.muslimheritage.com/article/ibn-al-nafis-pulmonary-circulation.

“Section of the Arab Text from the Commentary on Anatomy in Avicenna’s Canon by Ibn Al-Nafis.” Muslim Heritage, www.muslimheritage.com/article/ibn-al-nafis-pulmonary-circulation.

“Trade Caravans on the Silk Road.” www.britannica.com/topic/Silk-Road-trade-route.

Video:

“Ibn al-Nafis ابن النفيس – the Medical Genius who the world forgot.” Youtube, uploaded by ILM FILM, www.youtube.com/watch?v=jbaYGmhUi4Q.

 

Fleeing the Cuban Revolution|Part II–Nina Wei

cubamerican1

Cubamerican Poster

Over the past week, I successfully incorporated an interview and a documentary, Cubamerican, into my analysis of the Cuban Revolution’s impact on Cuban Americans. Inspired by my last post examining the history of Cuban immigrants to the U.S. and the diverse social and political affiliations within Cuban American communities, I decided to interview T. Maria, who came to the U.S. from Cuba with her family at the age of two, and gain second-hand understanding of Cuban refugees’ experience during the Revolution. Cubamerican also offered me insights into specific Cuban Americans’ interpretations of their identity as an emigrant in the U.S. This post will be less informational than previous ones, centering on my reflections while serving as a conclusion to the unit on Cuba.

I designed the interview questions to gear towards learning about T. Maria’s struggles with her identity and experiences that altered her perception of Cuba. T. Maria first highlighted an integral part to her: being a Cuban “refugee” who holds onto Cuban traditions rather than an “immigrant” who is more willing to integrate into American society. Identifying as a refugee who fled under oppression during the Revolution, T. Maria depicts her embrace of her Cuban roots and constant curiosity towards her mother country. While T. Maria was growing up in a Delaware community where her family was the only Cuban-American household, the foreign culture and political views that were vastly different from her family’s challenged T. Maria’s perception of herself. She figured from her family’s preservation of Cuban traditions, music, and food, as well as her family’s hatred towards President Kennedy, that she was indeed raised in a “Cuban bubble,” isolating her from the wider American community. However, she later realized that despite these efforts to retain her Cuban identity, she was different from the Cubans who grew up in Cuba. By corresponding with her cousin in Cuba and learning the differences between the culture in her family and in her cousin’s, T. Maria found herself in an identity crisis, unable to determine whether she identified as Cuban or American. It was not until when she became a mother that she recognized herself as a Cuban raised in America(Alonso).

image

Iglesias, Screencap of ‘¿Qué pasa, U.S.A.?’

The documentary also narrates similar struggles of Cuban refugees to the U.S. by including an interview with Steven Bauer, the lead actor in America’s first bilingual sitcom—¿Qué pasa, U.S.A.?—which examines the lives of Cuban immigrants as they navigate their identities while being immersed in the American community. Bauer in Cubamerican shares that he was very similar to the character he starred as in his teenage years, who was convinced that he was different from Cubans who stayed in Cuba and was determined to be “American” by assimilating into American culture. However, the experience of performing in that sitcom and coming to understand those identity struggles through acting brought him the epiphany that it was possible to be Cuban without actually living in Cuba (00:39:11-00:41:16).

Besides grappling with cultural identities, I also furthered my exploration of generation gaps in Cuban-American communities last week. T. Maria explained that the most intense level of conflict existed between older generations and the understanding beginning to emerge among younger generations. For example, her view departed from her parents’ and older sisters’ on opening up Cuba as a way to foster peace between Cuba and the outside world. After traveling to Cuba this spring, T. Maria corroborated her perception of de-escalating tension among younger generations with her conversation with a bus driver in Cuba, Junior. Junior contrasted his parents excessive concern that American tourists would bring harm to Cuba with his firm belief that exposure to foreign cultures would benefit Cuba to a great extent. The importance of promoting forgiveness is also an essential theme in the documentary, as Orlando Diaz-Azcuy claims that promoting the understanding that conforming to Castro’s leadership was the only mechanism to survive for many Cubans is important to pacify conflicts arising within older generations between the Cuban emigrants and the Cubans who stayed (1:34:45-1:35:01). T. Maria also advocates respect and recognition of those who did not have the privilege to flee Castro’s oppressive regime as she recounts her sympathy towards Victor, a teacher she met on the Cuba trip who lived under the Revolution, when he shared the journey of his survival through the famine in the ‘60s with pride(Alonso).

Although I began the research focusing on mediating generational divide in Cuban-American families, it occurred to me that generation gaps also exist in Cuban families that stayed on the island. And that reconciling diverging views from different generations in native Cuban communities is of equal significance. Mutual understanding from both parties of the conflict would be the key to resolve misunderstandings that arose as a result of the Cuban Revolution. In addition, weaving their own identities living in environments filled with different cultural traditions is indeed a challenge for Cuban Americans, but also an art that inspires diversity and celebrates difference. Each person will decide which parts of the cultures they would like to blend into their own. Similarly, T. Maria expressed at the end of the interview, speaking from her role as a mother, that it is always her children’s freedom to decide on their identities and how much of their Cuban roots they desire to integrate into their characters(Alonso).

My research on the development of communism in Cuba and on the history of Cuban immigration to the U.S. served as context and a specific lens through which I could further develop my understanding of Castro’s interpretation of Marxist ideologies, his applications of communist ideals in  Cuban society, and the enduring effects of the Cuban Revolution. Castro’s nationalist identity combined with his turn towards the Soviet Union oriented Cuba in a communist direction, spurring radical changes that transformed Cuba and pressured around a million to take refuge in the U.S. Now, I have gained a deeper comprehension of communism in Cuba and its relevance to modern society through examining informational sources, an interview, and a documentary. I plan to complete the Cuba unit this week after reading a few excerpts from Waiting for Snow in Havana, and promptly start the next unit on communism in Cambodia.

Works Cited

Sources:

Alonso, Maria. Interview. 21 Oct. 2018.

Cubamerican. Directed by José Enrique Pardo, 2013.

Images:

Cubamerican Poster. 13 Jan. 2013. Projector & Orchestra, Tim Greiving, projectorandorchestra.com/cubamerican/. Accessed 5 Nov. 2018.

Iglesias, José A. Screencap of ‘¿Qué pasa, U.S.A.?’. Miami Herald, http://www.miamiherald.com/entertainment/article190855869.html. Accessed 5 Nov. 2018.

Genitourinary Cancer​: NBT-II -Dhillon

NBT-II, Nara Bladder Tumor No. 2, currently our most promising cell line since receiving news that the RT-4 cell line is not a possibility and any other human or primate-derived cell line. NBT-II is a tumor that is derived from the urinary bladder of a male rat. Although it is not RT-4 which is an epithelial bladder cancer cell line derived from a 63-year-old caucasian male and was the initial cell line I was planning on using. One major issue, regardless of the cell line I use, is how I am going to store the cells without liquid nitrogen when I am on breaks. This is because many cell lines require liquid nitrogen as a means of storage over lengthier periods of time (weeks).

Continue reading

The Spring Model Continued – Baiting

ΦΘΙΝΟΥΣΕΣ ΤΑΛΑΝΤΩΣΕΙΣ(6)

In the past two weeks, I worked on Second Order Differential Equations with constant coefficients and learned more about the Spring-Damper Model. In this blog, I will provide a brief recap of the basic knowledge, and then provide further analysis of the same model. If you are interested in my last blog, please visit here.

Recap of Critical Definition from my Last Blog:

1. The standard form of homogeneous second order differential equations is:

WeChat Screenshot_20181019091555

  • In which y is a function of tt is the independent variable, and A, B are arbitrary constants. While analyzing the spring-damper model, the independent variable t represents time.

2. The characteristic equation is:

WeChat Screenshot_20181019092258

  • To solve a homogeneous second order differential equation with constant coefficient, set

20181103113629

  • Solve for r, then use WeChat Screenshot_20181019091131.png to find y.

3. The spring-damper model is in the form of

WeChat Screenshot_20181021171514.png

  • m is the mass of the block, b is the damping constant, and k is the spring constant.
  • If you wonder how we get this equation, please check the link above and read my last blog.

 

Oscillation:

After reviewing the basic knowledge, we are now ready to analyze the damping of the spring-damper model! In this case, we will first transform

WeChat Screenshot_20181021171514.png

into

20181103131113.png

Remember that mass never equal to 0, so these two equations are equivalent.

And then the characteristic equation becomes

WeChat Screenshot_20181103131532.png

We first need to analyze how the roots (r) behave in the characteristics equation. We can use the same analysis for quadratic equation:

WeChat Screenshot_20181103132049.png

In this blog, we will look at “underdamping” in detail. If you are interested in other two types of damping, please first try to analyze them yourself then visit here.

First, I want to look at the implications of b^2<4mk in general. This may mean three things:

  1. The damping constant b is small, which means the damper is weak.
  2. The spring constant k is large, which means the spring is strong.
  3. The mass is large, which means the block is heavy.

Imagine either one of the three cases, then you will find that as long as the mass(m) is not too big to break the spring, the block will oscillate and goes back to its equilibrium position. Let’s now try to prove this assumption mathematically!

First, since we haveWeChat Screenshot_20181103132049.png, we can set

WeChat Screenshot_20181103141617

So that

WeChat Screenshot_20181103142027.png

Plug it back into x and take the real part, we have

WeChat Screenshot_20181103145701.png

Notice that since the value in cos and sin are the same, we can use the sinusoidal identities and transform the equation into

WeChat Screenshot_20181103145723.png

In which

WeChat Screenshot_20181104193319

Following this equation, we would find:

  1. When t (time) approaches infinite, (position) approaches 0. Which means it goes back to its equilibrium position. This agrees with our assumption.
  2. The position of the block versus time should somehow follow the cosine function, which means it has a period and oscillates up and down. This agrees with our assumption.

If assign arbitrary values to b, m, and and plot the function, we would find something look like:

WeChat Screenshot_20181103151009.png

Graph from MIT Open Course Ware

And this is how underdamping looks like!! And conventionally, you can imagine the damper as gravity, and thus the motion would look like this:

Image result for spring damper gif

In this blog, we looked at how a block oscillate with a spring and a damper when the damper is weak. We also analyzed and found the math agrees with our common sense in real life. In fact, many of our observations have an origin in physics or mathematics. As long as we use deliberately use math as a tool, we will be able to explain them!

Starting now, I will be still working on the online course and building my knowledge. But I will also start to refer more to other models not covered in the course material. Hope you will find them interesting and meaningful!

References

Mattuck, A., Miller, H., Orloff, J., & Lewis, J. (2011, Fall). 18.03SC Differential Equations. Retrieved November 5, 2018, from MIT Open Course Ware website: https://ocw.mit.edu/courses/mathematics/18-03sc-differential-equations-fall-2011/index.htm

Zhu, B. (2018, October 21). Spring Model – Baiting [Blog post]. Retrieved from Independent Seminar Blog: https://independentseminarblog.com/2018/10/21/spring-model-baiting/

(Images)

ΠΕΛΛΗΣ, Σ. (2012, October 20). ΦΘΙΝΟΥΣΕΣ ΤΑΛΑΝΤΩΣΕΙΣ [Illustration]. Retrieved from http://physiclessons.blogspot.com/2012/10/blog-post.html#.W9-SM5NKjOg

Pasami. (2018, January 12). File:Spring-mass under-damped.gif [Illustration]. Retrieved from https://commons.wikimedia.org/wiki/File:Spring-mass_under-damped.gif

A Failed Attempt – Alina

This past week marks the end of the data collection period of my project. After I figured out how to scrape data generally on websites with simple structures in the last blog post, I had been experimenting with pulling data down from the Expedia website which was way more complex. However, as I tried to do this, I encountered some difficulties. At first, I decided to start experimenting with data that should be easily pulled to see if the code would indeed even work for this site. Therefore, I picked the date of the flight shown on the website. It had the tag class=”title-date-rtv“. I put this value into the code.

Screen Shot 2018-11-03 at 5.39.05 PM

I don’t recall what exactly the first few runs returned, but I remember that I didn’t get the date that was printed on the page. When I gave it another try, I got a different error message – HTTP Error 429: Too Many Requests.

Screen Shot 2018-10-31 at 5.14.23 PM

Even though the name was pretty self-explanatory, I wanted to know more about what it meant and if there was a way to fix my code to avoid this error, so I looked it up online. What I learned was that this error usually occurs because the websites set a restriction on the times of requests there could be from each IP address during a certain time period. This is a way for the websites to protect themselves from malicious attacks. In some cases, it is also possible that you haven’t really made a lot of requests in a short amount of time but that is just what the server returned as the error. No conclusion can be made in that case based on that message. On StackOverflow the advice given by people was that you should not try to get around it because spamming the websites would be considered an unethical even illegal behavior. The option given was that if your code was running in loops, then you should “sleep your process” which means to use a function to put your process on pause for a certain length of time after each time it runs to avoid overwhelming the server. However, if you were like me and your code wasn’t on a loop, there really isn’t much you could do if you wanted to get a result at that moment apart from maybe using a VPN with a different IP address. My only option was to wait for a period of time until it was okay for me to do another request. The problem was I didn’t know what amount of time I was supposed to wait for.  When I tried again 10 minutes later, it returned the same error message. I consulted T. Tom, my mentor, to see if he had any advice. He said I should try again tomorrow, so that was what I did. This time, I finally got the date printed as I expected.

Screen Shot 2018-10-31 at 10.38.06 PM

Now I know that my method of collection was viable, I decided to try and see if I could finally pull data of the prices. I found the tag of the price section which was class=”full-bold no-wrap”

Screen Shot 2018-11-04 at 4.38.11 PM

I put this in my code.

Screen Shot 2018-11-04 at 4.40.33 PM

Again, I got the error message of Too Many Requests. When I tried again, the result returned was “None” which meant that the program didn’t find any element with the given tag which I didn’t understand. So I tried to run it again, and this time, again it gave me the same too-many-request error. The main issue I had was that there was no way for me to test out my code efficiently and modify it because of the amount of time it required me to wait.

Therefore, I decided that for the moment, since I am at the end of the data collection period, I am going to shift my focus to the analysis of the data. Although I am going to continue to explore the possibility of pulling data off of the Expedia site with my code on the side.

This is the data that I have to work with now. It is by no means a big data set, but it should be enough for my purposes.

Screen Shot 2018-11-04 at 5.15.38 PM

Screen Shot 2018-11-04 at 5.14.47 PM

I have also begun investigating the ways in which I can analyze the data. I have been reading Visualize This by Nathan Yau. Also, I have been following a tutorial/course on codecademy on the topic of data analysis. More on that in my next blog!

 

Sources:

“429 Too Many Requests.” Http Statuses, httpstatuses.com/429. Accessed 4 Nov. 2018.

“How to avoid HTTP error 429 (Too Many Requests) python.” Stack Overflow, 1 Apr. 2014, stackoverflow.com/questions/22786068/how-to-avoid-http-error-429-too-many-requests-python. Accessed 4 Nov. 2018.

“Introduction to Data Analysis.” Codecademy, http://www.codecademy.com/programs/d4ca904f105f85fdb149aaa77d3c011b/items/c36432f958dcd000126c1bc58240a619. Accessed 4 Nov. 2018.

Yau, Nathan. Visualize This: The FlowingData Guide to Design, Visualization, and Statistics. Indianapolis, Wiley, 2011.