Actually Doing Things

Actually Doing Things A lot of what an engineer does is makes things more efficient. As I just did in 20.109 (Bioengineering Lab), engineering a system can mean optimizing its performance under certain conditions, which is what we did with bacteria that grow in the dark and the light. See this picture? I took it with cells! But when there are too many inputs coming into the system, you have to prioritize which input is the most important in your final action. The ELLs we’ve done for the past couple of weeks in GEL have covered that. Let me explain to you my life in the context of those ELLs in a surprisingly relevant fashion. ELL: Make a decision on what type of power plant to build in a town while taking into account how the residents and the primary stakeholder (the company that hired you) felt. Final decision: build a gas turbine power plant, gives consistent power, brings fuel to the town, and gives the townspeople jobs. Stan’s Life: Let’s run down a quick list of what I do by days of the week: Monday: 7.03 (Genetics), UROP, Japanese V, MITWE, Marching Band, sometimes flail at the other news editor who’s working the issue Tuesday: 20.320 (Analysis of Biomolecular and Cellular Systems), Japanese, 20.109 (4 hour lab), pset till I drop Wednesday: Same as Monday, substitute psetting for issue night and marching band Thursday: Same as Tuesday, but instead of psetting I go in to make the news section of that newspaper you pick up on campus look pretty Friday: GEL, 7.03, UROP, Clarinet Lesson, find food to eat (my frat has a meal plan, I don’t have to do this Sunday â€" Thursday), be social Saturday: UROP/Other activity that probably takes up a large chunk of the day (this may be sleeping) Sunday: UROP, Meetings at The Tech, house meeting at my fraternity Given that scenario, here’s the problem: I don’t go to my UROP every weekend, but between the random things that my days would be peppered with due to pledge training the new pledges (which just ended, yay!), risk managing a party, having to take care of myself, running errands, and things of the sort, I didn’t end up with a lot of time to pset during the day. However, psetting at night is becoming incredibly unproductive because I work better in the morning, and sleep is forcing me to not be able to stay up as late as I used to be able to last year. The Task: Find a way that optimizes this situation for amount of time available while the sun is up. Who’s the primary stakeholder? Me! I need sleep and time to actually do things! It’s possible to continue the way I was going, but it would land me with all C’s and feeling bad about myself. So I demand that something needs to change. Things that have to stay: UROP(it’s almost over anyway), GEL (I love it), 20.320 (dropping this class could make senior year not fun at all, because it’s a hard class that I’d have to then take alongside another difficult class (20.309) since it’s only offered in the fall), 20.109 (I think it’s bad form to drop a lab class and leave your partner hanging, also I’m actually doing well in this class, there’s no reason I should), MITWE + Clarinet Lessons (requirement for Emerson scholarship, not giving up music), news editing (because I love it), marching band (also because I love it), and anything that is related to my fraternity (because I love it), psetting (that’s kind of inevitable), food (duh), and being social (because I can’t live with being a shut-in) So that leaves 7.03 and/or Japanese as things that can go, if I wanted to keep all the things that I like doing. When deciding which option to move forward with in the ELL we had to take in various inputs from the other stakeholders, each of varying levels of importance, and use our best judgment to make a decision; I did the same thing (though maybe my stakeholders were really just more facets of my own feelings rather than other people). I looked at various aspects of how dropping either, both or none of the classes would affect me in the long term, and spent a lot of time talking to other people about it. Eventually, I came to the conclusion that I would drop 7.03. That’s the first time I’ve dropped a class, ever. Not only that, but I decided I would stick out Japanese because I like the language, but I would not continue with the class next semester. How do I feel now? A lot better. I actually have a shot at getting decent grades in all my classes now that I have more time to sleep and pset. As I said to my advisor, when I went to him late Wednesday evening, this is the second time this semester that I actually made a decision that was right for me. I’m starting to realize more and more that it’s ok to do fewer things. I’m wired to do better under time pressure and can successfully juggle a lot of activities, but there is a point where it becomes a little too much and you do have to stop doing things in order to be better at the things you already do. Ironically enough, I think those activities of mine that I’m starting to lose interest in were actually things that I did in high school. For example, taking a Japanese language class. I still want to go to Japan, I’m definitely making sure I’m in on MISTI Japan for the summer, but continuing in the class is not for me. I don’t want to treat it like a technical class; I don’t have time for 4 technical classes, even without my extracurriculars. Maybe there’s value to doing new stuff. I’m definitely planning on staying involved with GEL and The Tech and these other new things I’ve gotten into since coming to MIT, but I can easily see some of my opinions about things I’ve been doing for years and years change. As scary as that sounds, I’ll deal with it when I get there, I don’t plan on completely dropping all my old hobbies, but the way I express them might be different in the future, I recognize. The real lesson here, in the context of the ELL, is to evaluate all the potential inputs/effectors on the system before deciding on a final output. That way when you do decide on an output, you’ll know it was the right decision.

The Fight For The Fair Treatment And Equal Rights

Whenever human rights is brought into question, may it be locally or internationally, It is very common for people to point out their lack of equal rights in order to further explain how they are being robbed of some naturally given right(s). Those who point out rights and the lack of them are using it to argue for justice. Today, equal rights are adamantly fought for by people from all walks of life. If we look at the United States of America, we can see that, the inequality that people point to is a result of actions that took place many years ago and actions that are being taken today. May it be modern day slavery, institutionalized racism or the mistreatment and alienation of women in the American society; people are continuing the fight for the fair treatment and equal rights for various groups. In our studies in class we focused on several thinkers who, despite all fighting for some sort of justice, had very clear differences. Each of these thinkers identified that some group or groups were being denied equal rights. They argued that these groups were being deliberately denied of equal rights by the ruling elite and because of that, they saw it an injustice. The first group of thinkers, Dubois, Fanon, Gandhi and Martin Luther King, presented arguments on justice in hopes of the liberation of ethnic groups. Despite these thinkers fighting for different people, there isn’t much question on if they were activists. Dubois and Martin Luther king both fought for the rightsShow MoreRelatedEqual Rights1089 Words   |  5 PagesThroughout history women have fought to have the same rights and privileges as men. To this day women do not seem to be treated the same as men in the workforce. It appears that women have given up the fight for equal rights. Although women have stood up for what they believe in, there are still many aspects of the workplace that are not as equal as the opportunities that men are given. For hundreds of years women have fought to have equal rights in the workplace. First, it was not uncommon for aRead MoreThe African American Civil Rights Movement1450 Words   |  6 PagesThe African American civil rights movement was a long journey for African American nationwide. The success involved many people, hardships and time in order to advance the African American community in America. The purpose of the movement was to achieve their rights, cease discrimination, and racial segregation. During the start of the African American civil rights movement, Africans Americans still were faced with Jim Crow laws which segregated them from whites. Under the Jim Crow laws AfricanRead MoreSlavery And Jim Crow Laws Essay1130 Words   |  5 Pageswere greatly oppressed. Slavery and Jim Crow laws, which justified segregation, were abolished; however, African Americans did not receive equal treatment, as the ideology of white supremacy, or Caucasians being the superior race, remained in tact. Since juries typically consisted of Caucasian males who favored other Caucasians, African Americans rarely received fair trials. Other factors, such as housing opportunities, were unequal for African Americans as well, and as a result, poorer districts consistingRead MoreAfrican American Movements in the 20th Century1107 Words   |  4 Pages The Modern Civil Rights Movement and Black Power Movement made a big impact on the viewpoints in America and how society would be. As a whole it changed society and the rights now given to all people regardless of skin color. It was a breakthrough and a relief given to people of color, their main goal was equality for all. The Modern Civil Rights Movement was all about equality. African American just wanted their own â€Å"piece of the pie† in society. To be given equal rights and opportunity. They wereRead MoreAnalysis Of The Article Lilly Ledbetter Fair Pay Act1248 Words   |  5 PagesIn the article â€Å"Lilly Ledbetter Fair Pay Act,† the National Women’s Law Center states, on average, women earn 78 cents for every dollar their male counterparts earn. Of these women, African American women earn 64 cents, while Latin American women earn a mere 55 cents. The Lilly Ledbetter Fair Pay Act became one of the many stepping stones in achieving equal pay. Women must continue to make people aware of the discrimination they faced in the workplace on a daily basis. Wage discrimination is embeddedRead MoreThe Power Of Women In Kate Chopins A Respectable Woman1265 Words   |  6 Pagesfor their rights in the mid nineteenth-century, women were powerless and unequal to men. Women have fought to have the rights that they have today, before the nineteenth-century women had no rights. However, this changed when women decided to unify and fight for their rights.They were deprived of many things; for example, the right to suffrage, gender pay gap, and access to higher education but these are not all the battles that women wanted to fight. Women debated that all these rights were necessaryRead MorePersuasive Essay On Civil Disobedience819 Words   |  4 Pagesforms of civil disobedience that have been used and are currently being used. During past four years, there have been womens rights marches, pro-choice marches, and kneeling during the national anthem. These are people that are actively trying to create a fair society themselves and for the people around them. As the real world awaits, civil disobedience is a way to live in a fair society, preserve independence, and refine your moral compass. Every day people around the country wake up without theRead MoreThe Black Renaissance And The Great Depression971 Words   |  4 Pagesunfair treatment and obtain equal rights, but found themselves stuck. The two World Wars drew African Americans North in search of jobs in the war industry, only to find once they arrived more discrimination and inequality. Events such as the ‘Black Renaissance’ and the Great Depression created a sense of black pride and confidence in African Americans. Together, the African Americans’ frustration towards discrimination and their new sense of solidarity would be the basis for the Civil Rights movementRead MoreThe Rise of a Liberal Democracy 1501 Words   |  7 Pagessimply a government with free and fair elections. It is in essence rule of the majority, so if the majority is filled with ill intent then that is the direction of the government. Basically an unfiltered voice for the masses; and it is not suitable by itself. Liberal Democracy is described as what people think of today when they here of Democracy; it is a government with a system of values/rights built in to protect the people from themselves. It has basic rights like freedom of speech, press, religionRead MoreThe Fight For Equality Throughout America1517 Words   |  7 PagesThe Fight For Equality Throughout history, minority groups in America have struggled day after day for the political and social equality that was promised to them in the constitution, that only a portion of the population actually enjoys. The time period from the end of WWII to the present has featured massive movements for equality. Mexican Americans and the LGBT community fought tirelessly for the political rights, social equality, and equal pay that the majority took for granted, and many are

Things You Should Know About Ielts Essay Samples 2015

Things You Should Know About Ielts Essay Samples 2015 Introducing Ielts Essay Samples 2015 Now you know the structures you should take a look at our task two sample answers to observe how they've been used in practice. You have to answer the questions you're asked. In case you have any questions, I would like to know below. Every test-taker dreams of becoming inside info on the latest test questions. Additionally, there are daily practice activities on our FB page. For example, Skype and Facebook make it feasible that people interact in ways which were never before possible. Students often utilize search engines to answer a question and just copy the text from a site, instead of thinking about the question. All About Ielts Essay Samples 2015 These IELTS sample essays are categorised in a manner that makes it simple for you to observe how certain essay question types ask that you offer certain responses to be sure the question is completely answered. Several websites claim to provide this calendar year's IELTS essay questions. If you search the internet for IELTS essay questions from using this calendar year, you are going to receive a lot of results. The writing test is marked employing a 9-band scale, like the rest of the regions of the test. This practice isn't only prohibited in schools and universities but in addition stunts a student's intellectual improvement. Other individuals think education will not operate. Other people feel they should only be permitted to study subjects that'll be helpful in the future, like those related to science and technology. Technology has altered the way we work. There are several smart scientists who don't have the funds to acquire important info to finish their research. You don't have to incorporate any data within this paragraph, just tell the examiner what is going on in general terms. Among the biggest mistakes you can create in task 1 is including all of the info you see. To sum up, among the prin cipal issues with over-use of technology in education is plagiarism, which can be solved via the use of plagiarism detection program. The Fundamentals of Ielts Essay Samples 2015 Revealed In conclusion, there are lots of advantages to working from home. When employees work away from their homes, the price of running the company comes down. Firstly, folks will need to work really hard and put much effort in their jobs should they need to be prosperous. Usually you have to take the IELTS test if you're applying for employment or to study in a college or university in an English-speaking country or if you're migrating to such nation. There are several ecofriendly technological alternatives to what society utilizes today that are not as damaging for nature. It is suggested to look for the one which has an excellent reputation and offers high-quality papers at economical prices. The free movement of products across national borders has for ages been a controversial matter. Eve n though within this situation free knowledge is beneficial, it's not true in all situations. To summarize, it's obvious that computers are now part of our normal life. CONCLUSION In conclusion, distributing information totally free of charge can help in some specific facets but can also be damaging to society. By contrast, I think the saying that fortune has an important part to play is merely a fallacy. Examine the benefits and disadvantages and provide your own opinion. Employing a computer each and every day can have more negative than positive impacts on children. It's an exam meant for non-native English speakers. The dawn of the web and networking solutions has made it feasible that people work from their house instead of their offices. A prime case of this is the sum of on-line university courses available to students, covering a plethora of subjects, that up until recently were unavailable to the majority of learners. The End of Ielts Essay Samples 2015 Additiona l some people are lucky to be given great talents which others don't have. Also, certain sorts of information in the incorrect hands can be devastating for society. Some people today say this is a good trend, while some argue that it's leading to negative consequences. They believe that the best way to reduce the crime is educating people in prison so they can get a job after leaving prison. The cost of an essay depends upon the total amount of effort the writer has to exert. The sentences which you put in each individual paragraph will be contingent on what kind of question you become. Our sample essay has a very simple but decent introduction in which it demonstrates that the examinee has knowledge of the subject and clearly states the writer's position to establish the remainder of the essay. A well-structured essay has a very good introduction, body paragraphs that are simple to follow and connect together, and a great conclusion. Some believe that individuals want to li ve simpler lives to address environmental difficulties. Aged people can require care. In the end, educational films may be informative, but there would not be a chance for young individuals to interact and ask questions. If people live longer they get a chance to meet their wishes and obligations. Since most individuals spend a significant part of their adult life on the job, job satisfaction is a significant element of individual wellbeing. As nearly all adults spend the majority of their time on the job, being content with your career is an important portion of an individual's health and happiness. When it is dynamic we might have to compare different occasions and comment on the general trends over the period of time. A more severe issue is that the high price of a university education will signify that lots of families are reluctant to have more than 1 child, exacerbating the falling birthrates in some specific nations. The Upside to Ielts Essay Samples 2015 You also ne ed to demonstrate your capacity to compose a clear, well-structured argument. There are many kinds of structures that could get you a high score. In the second job, candidates are assessed on their capacity to create a crystal clear and logical argument on a particular topic. Secondly, someone is not as likely to achieve his targets if he fails to have determination. From a personal standpoint, computers can help young individuals to learn more regarding the world. On the flip side, I am of the opinion that there continue to be solutions to keep criminal justice. The important thing is finding the most critical data and not speaking about anything else.

Measurement And Density Free Essays

Purpose of this Lab What is the goal of this lab? What question are you trying to answer, or what problem are you trying to explain? Hypothesis After reading the lab instructions – but before starting the lab – record your best â€Å"educated guess† about each experiment: Experiment 1: Which method of finding the density give you the least percent error and why? Experiment 2: After completing the first experiment, answer this question. Which block do you think has the highest density and why? Experimental DesignList the materials used in this lab, and write a brief explanation of the procedures you followed. (You do not need to retype the procedure; simply summarize your procedures you used. We will write a custom essay sample on Measurement And Density or any similar topic only for you Order Now ) Procedures: Materials:  ©Ã‚  KC  Distance  Learning Data On the following pages record the data you collect in the lab. Show all calculations performed in the data analysis. Calculating Percent Error In most cases, the values you obtain through experimentation will be slightly different from the documented accepted values. Using very precise measuring devices and utilizing the measuring devices correctly reduces the amount of error.The calculation for % error is similar to the calculation you would use to determine your average on an exam. The formula for % error is listed below. Calculate the % error for each substance in experiments 1 and 2. The accepted values are given in the table above. The experimental values are the values you found in the lab. Percent Error = Experimental Value – Accepted Value x 100 Accepted Value Experiment-1 Measuring densities of the cubes using water overflow method. Mechanical Balance Red Cube Green Cube No. 1 Blue Cube No. 1 2 3 4 5 Average Volume Cube Red Green Blue Element Iron Copper Zinc Graduated Cylinder Red Cube Green CubeBlue Cube Mass (in grams) Volume (cm3) Density( g/ cm3) =Mass/Volume Element Present Standard Density (g/cm3) 7. 8 8. 9 7. 1 Calculated Density (g/cm3)  ©Ã‚  KC  Distance  Learning Experiment-2 Measure densities of the cubes using Vernier Calipers and Digital Weighing balance. Digital Balance Red Cube Green Cube No. 1 2 3 4 5 Average mass Blue Cube No. Length (L) Vernier Caliper Red Cube Width (W) Height (H) LxWxH 1 2 3 4 5 Average Volume Green Cube No. 1 2 3 4 5 Average Volume Length (L) Width (W) Height (H) LxWxH Blue Cube No. 1 2 3 4 5 Average Volume Length (L) Width (W) Height (H) LxWxH  ©Ã‚  KC  Distance  Learning Cube Red Green BlueMass (in grams) Volume (cm3) Density( g/ cm3) =Mass/Volume Element Present Element Iron Copper Zinc Standard Density (g/cm3) 7. 86 8. 96 7. 13 Calculated Density (g/cm3)  ©Ã‚  KC  Distance  Learning Data Analysis Analyze the data you collected in the lab. Support your calculated densities by showing the calculations that lead you to your results. Calculate your percent error and compare your percent error from experiment 1 to your percent error in experiment 2.  ©Ã‚  KC  Distance  Learning Conclusion After conducting the experiment, how would you now explain the problem(s) or answer the question(s) raised when you described the purpose of the lab?Do your results support your hypothesis? Why or why not? Be sure to base your answer on the data you collected. Consider whether your conclusion is the only explanation for the data you collected, or if there could be alternate explanations.  ©Ã‚  KC  Distance  Learning Post Lab Questions Answer the following questions before submitting your report to your teacher. Show all work in all questions requiring calculations. Use the following density table when needed. Density Table Substance Aluminum Oak Pine Polypropylene PVC Steel Water Lead Bismuth Density (g/cm3) 2. 70 0. 75 0. 42 0. 2 1. 40 7. 9 1. 0 11. 4 9. 78 1. Suppose you were asked to find the density of a metal object that appears to be a cube. You notice that the metal looks old and has a few chips in it. Without any other information, would it be correct to measure 1 side of the object and cube (^3) the value to determine the volume? Explain. 2. Suppose you determined the density of a cube to be 1. 40 g/cm3. Would the density of the cube be different if you had a cube made of the same material with twice as much mass? Explain. 3. A cube with a mass of 0. 0084 kilograms has a volume of 20. 0 cm3. Using the density table above, identify the object. Don’t forget to convert if needed. 4. A cube of lead is 7. 00 centimeters per side. What is the mass of the cube? (See table for density of lead).  ©Ã‚  KC  Distance  Learning 5. You fill a graduated cylinder with 50. 00 milliliters of water. You drop a piece of aluminum with a mass of 15. 00 grams into the graduated cylinder causing the water to rise. What would the new volume of the graduated cylinder be after dropping the aluminum? 6. How many of the substances listed in the density table above would float in water?  ©Ã‚  KC  Distance  Learning How to cite Measurement And Density, Papers

Stroop efect Essay Example

Stroop efect Essay Phonemic awareness The ability to hear and manipulate sounds in words Alphabetic principle (phonics) The ability to associate sounds with letters and use these sounds to form words Fluency with text The effortless, automatic ability to read words in text Understanding spoken language Vocabulary The ability to understand (receptive) and use (expressive) words to acquire and convey meaning Comprehension The complex cognitive process involved in the intentional use of text (or spoken language) to convey meaning Lexical/direct word recognition With/without semantics Read familiar words irregular words Phonological/indirect Read regular words nonsense words E. G. Eve, hoppled Models of skilled word recognition: Connectionist models Computational (mathematical) models of word-reading Implemented as computer simulations via neural networks All words are read by a single route that is sensitive to the statistical regularities between orthography (text) phonology (speech) Dual-route explanation of word frequency regularity effects The speed with which words can be named (from fastest to slowest) High frequency rods (like time) Are recognized quickly through the direct route (by sight) Low frequency regular words (like mint) Can be sounded out through the indirect route Low frequency irregular words (like pint) Cant be correctly sounded out using the indirect route Must be identified through the direct route, which is slower for less familiar words Onwards (like pint) Can only be pronounced through the indirect route Named most slowly both direct indirect routes must be explained Phases in learning to read Pre-alphabetic Partial alphabetic Full alphabetic Consolidated alphabetic (orthographic) Not strict stages of reading development Beginning readers may used a variety of strategies depending on the circumstances Can connect visual cues to word meanings Can read environmental print But cant read Coca cola, Stop etc. Would only see words within logos e. G. We will write a custom essay sample on Stroop efect specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Stroop efect specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Stroop efect specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Partial alphabetic reading Uses cues based on letter-sound relationships Rehire Wile (1985) found: Children at this stage find it easier to learn phonologically plausible words: elephant easier than WAC IRK for giraffe, easier than WEB Full alphabetic reading LET for Readers use spelling-sound knowledge to sound out unfamiliar words b-a-t and d-o-g When readers use letter-sound rules to decode unfamiliar words They develop detailed representations of word sin lexicon Consolidated alphabetic Can use larger letter-sound patterns Chi-est. Vs.. Chi-e-s-t Can recognize morphological (meaning-based) units Help helpful unhelpful; beauty beautiful And common orthographical patterns -sigh, -sigh, -AAU, -ins, -deed, -Zion Shares (1995) Self-Teaching Hypothesis Sounding out words underpins fluent word recognition Provides a self-teaching mechanism for deciphering unfamiliar words Word recognition becomes consolidated after several repetitions (4 14 average; many more for poor reads) Item-based, rather than stage-based development Phonological deficit Double deficit Rapid automated naming (+ Phonological deficit) But letter naming is a useful predictor of early reading success Visual deficits/visual stress Cerebella deficit theory Difficulty in developing automatic Mango-cellular dysfunction Subtle auditory visual deficits Prerequisites of alphabetic literacy The ability to sound out unfamiliar words provides foundation for reading development Poor Onwards reading skills are sin qua non of reading disability In order to use spelling-to-sound information to sound out new words, beginning readers need: Spoken words can be thought of as sequences of sounds The same sounds occur in different words Letter knowledge Individual sounds (phonemes) can be represented by alphabetic letters Pre-requisit e skills Phonological awareness What is it? The ability to recognize manipulate sounds in spoken words The single most rueful advance in the science and pedagogy of reading (last) century How is it measured? Syllable phoneme counting/tapping How many sounds are in there in elephant? Rhyme production Tell me a word that rhymes with drink Phoneme deletion Say bed without the lb/ Which word starts with a different sound? Phonological awareness follows a developmental pattern Syllables pop-TA-to (kindergarten) Sub-syllabic units (pre-readers) Onset (initial consonants) Slip, slop, slap Rime (vowel later consonants) Bat cat Phonemic units (learning to read) Individual phonemes in words b-a-t

Plot Summary of Henrik Ibsens A Dolls House

Plot Summary of Henrik Ibsen's 'A Doll's House' Written in 1879 by Norwegian playwright Henrik Ibsen, A Dolls House is a three-act play about a seemingly typical housewife who becomes disillusioned and dissatisfied with her condescending husband. Act One: Meet the Helmers Set around Christmas time, Nora Helmer enters her home, truly enjoying life. An old widow friend from her past, Mrs. Linde, stops by hoping to find a job. Noras husband Torvald recently earned a promotion, so she happily finds employment for Mrs. Linde. When her friend complains how hard the years have been, Nora replies that her life has been filled with challenges too. Nora discreetly explains that several years ago, when Torvald Helmer was very ill, she forged her dead fathers signature in order to illegally obtain a loan. Since then, she has been paying back the loan in secret. She has never told her husband because she knows it would upset him. Unfortunately, a bitter bank employee named Nils Krogstad is the man who collects the debt payments. Knowing that Torvald is soon to be promoted, he tries using his knowledge of her forgery to blackmail Nora. He wants to ensure his position at the bank; otherwise, he will reveal the truth to Torvald and perhaps even the police. This turn of events greatly upsets Nora. However, she keeps the truth concealed from her husband, as well as Dr. Rank, a kind yet sickly old friend of the Helmers. She tries to distract herself by playing with her three children. However, by the ending of Act One, she begins to feel trapped and desperate. Act Two: Nora Tries to Keep Her Secret Throughout the second act, Nora tries to concoct ways to prevent Krogstad from revealing the truth. She has tried to coerce her husband, asking him to let Krogstad keep his job. However, Helmer believes the man possesses criminal tendencies. Therefore, he is bent on removing Krogstad from his post. Nora tries asking Dr. Rank for help, but she is put off when Dr. Rank becomes too flirtatious with her and claims that he cares for her just as much, if not more, than her husband. Later, the Helmers prepare for a holiday ball. Torvald watches Nora perform a traditional folk dance. He is disappointed that she has forgotten much of what he has taught her. Here, the audience witnesses one of the many scenes in which Torvald patronizes his wife as though she were a child or his play-thing. (Hence, Ibsen titled the play: A Dolls House). Torvald constantly calls her pet names such as my songbird and my little squirrel. Yet, he never speaks to her with any degree of mutual respect. Eventually, Mrs. Linde tells Nora that she had a romantic attachment to Krogstad in the past and that she can perhaps persuade him to relent. However, Krogstad does not sway in his position. By the end of Act Two, it seems that Torvald is bound to discover the truth. Nora is ashamed of this possibility. She contemplates jumping into an icy river. She believes that if she does not commit suicide, Torvald will bravely assume responsibility for her crimes. She believes that he would go to jail instead of her. Therefore, she wants to sacrifice herself for his benefit. Act Three: Nora and Torvald'sBig Transformation Mrs. Linde and Krogstad meet for the first time in years. At first, Krogstad is bitter towards her, but she soon rekindles their romantic interest toward one another. Krogstad even has a change of heart and considers tearing up Noras IOU. However, Mrs. Linde believes it would be best if Torvald and Nora finally confront the truth. After returning from the party, Nora and Torvald unwind at home. Torvald discusses how he enjoys watching her at parties, pretending that he is encountering her for the first time. Dr. Rank knocks on the door, interrupting the conversation. He says goodbye to them, hinting that he will be shutting himself up in his room until his sickness finally wins. After Dr. Ranks departure, Torvald discovers Krogstads incriminating note. When he realizes the criminal act that Nora has committed, Torvald becomes enraged. He fumes about how Krogstad can now make any demand he wishes. He declares that Nora is immoral, unfit as a wife and mother. Even worse, Torvald says that he will continue to be married to her in name alone. He wants to have no romantic connection to her whatsoever. The irony of this scene is that moments before, Torvald was discussing how he wished that Nora faced some sort of peril, so that he could prove his love for her. Yet, once that peril is actually presented, he has no intention of saving her, only condemning her actions. Moments after Torvald raves like a madman, Krogstad drops another note saying that he has rediscovered love and that he no longer wants to blackmail the Helmer family. Torvald rejoices, declaring that they are saved. He then, in a moment of sheer hypocrisy, states that he forgives Nora and that he still loves her as his little caged songbird. This is a startling wake-up call for Nora Helmer. In a flash, she realizes that Torvald is not the loving, selfless husband she had once envisioned. With that epiphany, she also comes to understand that their marriage has been a lie and that she herself has been an active part in the deception. She then decides to leave her husband and her children in order to find out who she truly is. Torvald desperately begs her to stay. He claims that he will change. She says that perhaps if a miracle of miracles happens they might one day become suitable companions. However, when she leaves, slamming the door behind her, Torvald is left with very little hope.

Triassic-Jurassic Mass Extinction

Triassic-Jurassic Mass Extinction Over the entire 4.6 billion year history of the Earth, there have been five major mass extinction events. These catastrophic events completely wiped out large percentages of all of the life around at the time of the mass extinction event. These mass extinction events shaped how the living things that did survive evolve and new species appear. Some scientists also believe we are currently in the middle of the sixth mass extinction event that could last for a million years or more. The Fourth Major Extinction The fourth major mass extinction event happened around 200 million years ago at the end of the Triassic Period of the Mesozoic Era to usher in the Jurassic Period. This mass extinction event was actually a combination of smaller mass extinction periods that happened over the final 18 million years or so of the Triassic Period. Over the course of this extinction event, it is estimated more than half of the known living species at the time completely died out. This allowed dinosaurs to thrive and take over some of the niches left open due to the extinction of species that had previously held those types of roles in the ecosystem. What Ended the Triassic Period? There are several different hypotheses on what caused this particular mass extinction at the end of the Triassic Period. Since the third major mass extinction actually is thought to have occurred in several small waves of extinctions, it is entirely possible that all of these hypotheses, along with others that may not be as popular or thought of as of yet, could have caused the overall mass extinction event. There is evidence for all of the causes proposed. Volcanic Activity:Â  One possible explanation for this catastrophic mass extinction event is unusually high levels of volcanic activity. It is known that large numbers of flood basalts around the Central America region occurred around the time of the Triassic-Jurassic mass extinction event. These enormous volcano eruptions are thought to have expelled huge amounts of greenhouse gases like sulfur dioxide or carbon dioxide that would quickly and devastatingly increase the global climate. Other scientists believe it would have aerosols expelled from these volcanic eruptions that would actually do the opposite of the greenhouse gases and end up cooling the climate significantly. Climate Change:Â  Other scientists believe it was more of a gradual climate change issue that spanned the majority of the 18 million year time span attributed to the end of the Triassic mass extinction. This would have led to changing sea levels and even possibly a change in the acidity within the oceans that would have affected species living there. Meteor Impact: A less likely cause of the Triassic-Jurassic mass extinction event may be attributed to asteroid or meteor impact, much like what is thought to have caused the Cretaceous-Tertiary mass extinction (also known as the K-T Mass Extinction) when the dinosaurs all went extinct. However, this is not a very likely reason for the third mass extinction event because there has been no crater found that would indicate it could create devastation of this magnitude. There was a meteor strike that dates to about this time period, but it was rather small and is not thought to have been able to cause a mass extinction event that is thought to have wiped out more than half of all living species on both land and in the oceans. However, the asteroid impact may have very well caused a local mass extinction that is now attributed to the overall major mass extinction that ended the Triassic Period and ushered in the beginning of the Jurassic Period.