What is Depression: Definition and 120 Discussions

The Great Depression was a severe worldwide economic depression that took place mostly during the 1930s, beginning in the United States. The timing of the Great Depression varied across the world; in most countries, it started in 1929 and lasted until the late 1930s. It was the longest, deepest, and most widespread depression of the 20th century. The Great Depression is commonly used as an example of how intensely the global economy can decline.The Great Depression started in the United States after a major fall in stock prices that began around September 4, 1929, and became worldwide news with the stock market crash of October 29, 1929, (known as Black Tuesday). Between 1929 and 1932, worldwide gross domestic product (GDP) fell by an estimated 15%. By comparison, worldwide GDP fell by less than 1% from 2008 to 2009 during the Great Recession. Some economies started to recover by the mid-1930s. However, in many countries, the negative effects of the Great Depression lasted until the beginning of World War II.
The Great Depression had devastating effects in both rich and poor countries. Personal income, tax revenue, profits and prices dropped, while international trade fell by more than 50%. Unemployment in the U.S. rose to 23% and in some countries rose as high as 33%. Cities around the world were hit hard, especially those dependent on heavy industry. Construction was virtually halted in many countries. Farming communities and rural areas suffered as crop prices fell by about 60%. Facing plummeting demand with few alternative sources of jobs, areas dependent on primary sector industries such as mining and logging suffered the most.
Economic historians usually consider the catalyst of the Great Depression to be the sudden devastating collapse of U.S. stock market prices, starting on October 24, 1929. However, some dispute this conclusion and see the stock crash as a symptom, rather than a cause, of the Great Depression.Even after the Wall Street Crash of 1929, where the Dow Jones Industrial Average dropped from 381 to 198 over the course of two months, optimism persisted for some time. The stock market turned upward in the early 1930, with the Dow returning to 294 (pre-depression levels) in April 1930, before steadily declining for years, to a low of 41 in 1932.At the beginning, governments and businesses spent more in the first half of 1930 than in the corresponding period of the previous year. On the other hand, consumers, many of whom suffered severe losses in the stock market the previous year, cut their expenditures by 10%. In addition, beginning in the mid-1930s, a severe drought ravaged the agricultural heartland of the U.S.Interest rates dropped to low levels by the mid-1930, but expected deflation and the continuing reluctance of people to borrow meant that consumer spending and investment remained low. By May 1930, automobile sales declined to below the levels of 1928. Prices, in general, began to decline, although wages held steady in 1930. Then a deflationary spiral started in 1931. Farmers faced a worse outlook; declining crop prices and a Great Plains drought crippled their economic outlook. At its peak, the Great Depression saw nearly 10% of all Great Plains farms change hands despite federal assistance.The decline in the U.S. economy was the factor that pulled down most other countries at first; then, internal weaknesses or strengths in each country made conditions worse or better. Frantic attempts by individual countries to shore up their economies through protectionist policies – such as the 1930 U.S. Smoot–Hawley Tariff Act and retaliatory tariffs in other countries – exacerbated the collapse in global trade, contributing to the depression. By 1933, the economic decline pushed world trade to one third of its level compared to four years earlier.

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  1. S

    Freezing Point Depression and Ethylene glycol

    Homework Statement Ethylene glycol, the primary ingredient in antifreeze, has the chemical formula C_2H_6O_2. The radiator fluid used in most cars is a half-and-half mixture of water and antifreeze. What is the freezing point of radiator fluid that is 50% antifreeze by mass? K_f for water...
  2. H

    How Does Mental Illness Impact an Artist's Work?

    Do you think an artists work can be affected by their depression or mental illness? I am doing a project for A level and would love as many different views as possible :)
  3. H

    Is the Dopamine System the Key to Understanding Antidepressant Effects?

    There is actually substantial critique against the simple "chemical hypothesis" that depression is caused by low levels of serotonin. See for instance: http://www.mindhacks.com/blog/2005/05/is_depression_a_brai.html http://www.mindhacks.com/blog/2005/11/depression_and_the_l.html...
  4. ShawnD

    Why do doctors give SSRI medication to treat depression?

    I'm not a doctor, but I'm a chemist who suffers from depression. I haven't worked in a hospital or a clinic, but I would like to think I have 20+ years of practical experience - myself. If you already know something about drugs or simply don't care about my story, scroll down to the "Question"...
  5. B

    Does it ever depress you that you're not the best?

    Does it ever depress you that you're not the "best?" So I'm going to do Maths + CS at university. Someone on a forum the other day posted a link to a guy called Terence Tao (http://en.wikipedia.org/wiki/Terence_Tao) who was a child progidy and is obviously incredible good at Maths. I just feel...
  6. W

    Can Depression Be Effectively Treated Without Medication?

    I have a serious question to ask. Is depression really treatable? I ask because I think I might to really see someone. It has really gotten worse over the years. However, my friend went to see someone and she is on a cocktail of meds, and when they are switched, she becomes really erratic. I...
  7. D

    Is Requiem for a Dream the Most Depressing Movie Ever?

    Has got to be Requiem for a Dream. Every time I watch this movie it makes me want to die.
  8. Ivan Seeking

    Medical Depression linked to depressing events

    http://www.dailymail.com/story/Life/2007040371/Study-shows-some-diagnosed-with-depression-may-be-reacting-naturally-to-stress/ I am trying to think of something to say that won't require that I ban myself. One would think that someone might have looked at this long ago...?
  9. N

    Medical Serotonin Awarenss Depression.

    I'm trying to understand the role of Serotonin. DOes it cause you o be awake? IS it the sole thing that gives us happy moods? Drugs like DMT and LSD are confused with SOrotonin int he brain causing psychdellic trips. DMT is a substance which exists in our brain or Pineal Gland. I want to know...
  10. A

    Exploring the Anomalous i Value in Freezing Point Depression of KCl Solutions

    Hi Guys, I have a question and its regarding to the freezing point depression lab ... I did an experiment where I had to find an "i" value for KCl. I'm getting 2.4 for "i" ... but the theoratical value is 2. I was just wondering why expriment value os higher than the theortical value ? what...
  11. N

    Freezing point depression error

    So we did an experiment of freezing point depression and my calculated molar mass values were larger than actual... First, the freezing point of the pure solvent had to be determined and so if some of the solvent was on the walls of the test tube opposed to in the solution how would this affect...
  12. siddharth

    Since the past week, I find myself depressed,..

    Since the past week, I find myself depressed, and I can't think of any reason why. :frown: To be more specific, there's this nagging feeling of futility. So, what do you do in situations like this? I know this question is vague, but I feel slightly better sharing this. (First signs of insanity...
  13. I

    Medical Depression: It's All In Your Head.

    Medical Explanation for Major Depression An important line of defense in treating Major Depression is realizing depression is a medical disorder. It’s a BRAIN disorder, not a MIND disorder (although depression effects the mind). A depressed brain is not running on all cylinders. Certain...
  14. A

    Ice cream and freezing point depression

    When you make ice cream using a couple of zip loc bags and a salt/ice mixture do the room and surroundings have any effect? Can you be in a warm room and still make the ice cream? Thanks.
  15. e-realmz

    Medical Brain tumor linked to depression?

    A brain tumor was recently experienced. It was on the surface tissue of the brain and was about 3 inches in diameter. Non cancerous. There was no reported brain damage. Everything healed up great. For a good month or two, way of thinking was altared a little. Presently that way of thinking is...
  16. S

    Suicidal/depressed for more than a year

    so as you guys already know, I'm mentally ill ... I have been suicidal/depressed for more than a year (and I'm still alive wow!) I'm also epileptic ... and I have several physical problems as well, but I would rather not discuss them on here but hey I'm not about to die or anything ...
  17. H

    Losing Confidence After Failing Thermodynamics Exam

    very depressed... Hi all.. Just finished my thermodynamics exam...do badly...not expected to be that bad... I used to score greatly in the first year...I got A+ in nearly all courses.. But this time...I am afraid that I would probably get a D or even worse...how can i accept this...sigh...
  18. C

    News Syriana, Depressing and true to life.

    I just saw Syriana. It shows that little bits of corruption end up killing reform in the middle east which in turn perpetuates terrorism. It also does a good job of showing that many terrorists are not indoctrinated to violence, they are slowly persuaded through peer pressure to do acts they...
  19. R

    News Side Topic for Great Depression Thread

    Side Topic for "Great Depression" Thread The demand for oil is also on the rise though. As vast as these reserves may be, all that does is buy us a little more time to figure out alternatives/fight over it. It will still run out eventually.
  20. wasteofo2

    News Should a second Great Depression come, what will happen?

    Should a second "Great Depression" come, what will happen? Let's take a somewhat pessimistic view of how things are going (or realistic, depending on your disposition), and suppose that America in the next 5-15 years experiences a second "Great Depression." Let's suppose that even a few of...
  21. H

    Medical Can Brain Scans See Depression? [NY Times]

    http://www.nytimes.com/2005/10/18/health/psychology/18imag.html?incamp=article_popular
  22. C

    I'm so damned depressed today :cry:

    I'm so damned depressed today :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry: :cry...
  23. A

    News Feeling Hopeless? Anyone Else After Recent Elections?

    Hello all Well, for the past few weeks I have been getting well and truly sloshed. Red wine. I just can't stand it any more - and was just interested in finding out if anyone else feels like there seems to be very little hope left. The 'right' seems to have won, hands-down. Fukuyama ('The End...
  24. Q_Goest

    Medical Falling asleep with TV on linked to depression, obesity and other issues

    I was walking down the hallway at work and saw a poster. Someone must have put it up outside their office. It said that falling asleep with the TV on reduces the bodies production of melatonin. So I looked it up and found an interesting article on Discovery.com...
  25. 1

    What's Out There? The Emotions of Stargazing

    When I look into space, I can't make it out, but I am looking at so much. It depresses me to that I may never know what's out there, that all of the questions I have may never be answered. Does anyone else feel this way?
  26. M

    Programs Math Major at UCSD, and feeling depressed about the future.

    First of all, I used to be the kid that hated math back in high school. But did okay, besides in PreCalc. I go to UCSD now, it's my junior year, and I'm now a Math-Computer Science major. I only declared CSE recently. I got a D in my modern algebra class. I studied super hard too, but didn't...
  27. M

    Studies: Belief in God relieves depression?

    http://www.washingtontimes.com/news/2010/feb/25/research-indicates-belief-in-god-relieves-depressi/?page=2&feat=home_headlines how accurate is this? is it biased? if it is true then how strongly do you need to believe in god for this to apply?
  28. T

    Thermodynamics: Freezing Point Depression

    Homework Statement 200 g of ethylene glycol (HOCH2CH2OH) is dissolved in 1.00 L of water at 25°C. The cryoscopic constant of water is 1.86 °C molal-1. If the solution is chilled to -25°C, how much ice (in g) will be separated out? Homework Equations ΔT=Kfm, where Kf is and cryoscopic...
  29. G

    Freezing Point Depression Equation in Calculus Notation?

    Homework Statement How do I write it in calculus notation? Delta T = i k m were Delta T = Change of temperature i = van't Hoff value m = concentration in molality k = molal freezing/boiling point constant for the solvent THANKS! Homework Equations The Attempt at a Solution
  30. H

    Medical Is depression and/or anxiety genetic?

    I'm not talking about your chances of having it if it runs in your family, because I can see depression and/or anxiety being contagious if you were raised in it. I'm talking about actual, they've isolated the gene, genetics. I've often heard people say "it's a leak in the brain", as though...
  31. M

    How to predict the length of a rec-/depression?

    Homework Statement I wish to know how I can estimate how long a recession will last, assuming that conditions stay the same. The Attempt at a Solution Given the amount of money the average company has now lost thanks to a stopped inflation, denoted by mi, we can estimate how long...
  32. K

    Determining molar mass by freezing point depression lab

    Im doing my chemistry lab and ran into trouble with this problem. I am not even where to start or what formulas to use. Any ideas? Thanks. Suppose that a student calculated Kf of biphenyl to be 81.2 C kg/mol. Calculate the molar mass of an unknown if a solution containing 1.64g of an...
  33. S

    Depression and Finding Motivation

    I am after some advice about confronting some personal demons of mine. I have been suffering depression since I started university, basically 9 years now. At high school I was a straight A student, I understood things easily and liked to learn ... and be challenged though I wasn't very often...
  34. P

    Freezing point depression calculations

    Homework Statement Hi, I have a problem with the data and calculations part in my lab. For some reason, I can't get a molar mass of the given solutes to match my answer. I'll provide all the equations and my numbers. Please I really need help with this Homework Equations deltaT = m(kf)...
  35. T

    Molar Mass From Freezing Point Depression

    Homework Statement Find the molar mass of a nonpolar molecular compound if 5.52 grams dissolved in 36.0 grams of benzene begins to freeze at -1.87 C? The freezing point of pure benzene is 5.50 C. The freezing point depression constant is -5.12. Homework Equations (Change of...
  36. R

    Retaking Chemistry Class: Is It a Bad Thing for Engineering Majors?

    My plan is to major in mechanical, electrical, or computer engineering. I'm also considering computer science. All of those majors are in my university's school of engineering. One requirement for engineering school is to take general chemistry which is what I'm doing right now for my first...
  37. Borg

    Medical Helping others with depression

    I've heard the following logic from people who are depressed and I'm wondering how others would answer it. I'm depressed so I try telling myself that I shouldn't feel so bad because there are others who are worse off than me. But, it doesn't help and I still feel depressed - which makes me...
  38. H

    How Much Should a Person Weigh to Depress a Diving Board by 4cm?

    Homework Statement A diving board has a vertical depression of 15cm when a 60kg person stands on it 3m from the fulcrum. If another person was to stand on the same diving board, 2m from the fulcrum, how much would they have to weight to create 4cm of depression? In class we did 2...
  39. D

    Depression and Studying. NEED ADVICE AND HELP

    Hello, this is my first time posting. I'm seeking some advice and would like to hear from other people who are in the same boat. I'll try and keep this post as brief as possible and stick to the main points, so sorry in advance if I get carried away. So basically this is my story...
  40. Entanglement

    Medical Can Multivitamins Cause Depression and Loss of Libido?

    I have been 2 weeks taking multivitamins and vitamin B complex with the recommended dosage and I have been suffering from depression and loss of libido, is it possible that these multivitamins are the cause??
  41. J

    MHB Angle of elevation and depression problems

    (1) Prof micheal walks towards the university clock tower and decides to find the height of the clock above ground. He determines the angle of elevation to be 30 degrees and after proceeding an additional 60m towards the base of the tower, he finds the angle of elevation to be 40 degrees. What...
  42. X

    Intellectual spoiling, career options depression.

    Does anyone on here fear the math that you study in academia (particularly graduate school) is just so useless to most of industry. Clearly, that's why people become professors, but I just get discouraged when most things I'm interested in are purely algorithmic or mathematical in nature but...
  43. R

    Medical How can I tell that I'm in a depression episode?

    I want to know how I can define a depression episode, detailed info please? Should I check the doctor when I first experience the symptoms?
  44. H

    Finding a soultion (avoiding the depression.)

    I'm looking for a little truth. I'm 30, married, work full-time, 15-32 classes from any Undergrad degree, and cannot see any happy ending. Due to my job, I cannot accept any internship because of hour conflicts with my full-time position, which I cannot lose because it provides a tuition...
  45. S

    Melting/freezing point depression of water vs. other liquids

    Hey I'm trying to derive the Gibbs-Thomson equation for the freezing/melting point depression of liquids inside a confined space, such as a cylindrical pore. This has been observed for many liquids, such as water, benzene, heptane, etc. Basically my question is, why does water, which expands...
  46. L

    Medical Can depression hinder academic and professional success?

    Hi, It seems like there's a long history of threads in the academic forums where people address their emotional issues alongside their academic queries. I'd like to keep this a general/health topic without straying much into academics. I have some questions for those of you who have been...
  47. F

    Calculate freezing point depression and boiling point elevation

    Homework Statement Calculate new freezing point and boiling point when 0.47 mol ethylene glycol and 0.14 mol KBr is added to 150g H2O. Express your answer using one decimal place.Homework Equations molality = moles solute/kg solvent ΔTf=i*Kf*m ΔTb=i*Kb*m New bp = ΔTb + normal bp New fp =...
  48. H

    Depression, doubt in my mathematical abilities

    Hello all, I am currently an undergraduate student (just finished my first semester) at Stony Brook University. Basically, I'm fairly certain that I want to go into pure math or theoretical physics, it's just that I feel like I may not be up to par with everyone else who will be competing...
  49. H

    Mechanics behind capillary depression.

    As the question states I have hard time understanding that how does a liquid reach equilibrium in case of capillary depression (mercury for example ). I know how it goes down but not how it 'stops'. like in case of liquids which have more force of adhesion ,as the liquid goes up because of...
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