trade Definition and 48 Threads

  1. H

    History Where did ancient civilizations get their supply of iron?

    Back in the 19th century British explorers came across Eskimos who were so isolated that they'd forgotten that any other humans existed. Nevertheless they had a little bit of iron that they used to put an edge on their knives. They had no trade so where did they get it? Fortunately their...
  2. R

    How does a pump trade head for flow rate?

    A pump’s power is a product of its pressure rise times volume flow rate. Commonly, a pump is specified by giving the pressure rise, or head, it can provide and the flow rate, such as in gallons per minute(GPM). But some pumps provide the user with a chart that shows how the pressure rise can...
  3. H

    MHB Volume and surface area of "One World Trade Center"

    Hi to everyone, do you know the "One World Trade Center"? Well, I've to calculate two things about it: -The volume, according to its particular shape -The surface of the glass plates which cover the whole structure Searching on internet i found two dimensions: 1) Total height without...
  4. B

    What Is Logical To Trade Across Interstellar Distances?

    So in a setting with interstellar travel I was thinking about interstellar trade. I know the method of travel dicates what is traded, so I will elaborate below: Constant Acceleration: Refueling is virtually not a concern. Stargates: Ships can accelerate for months to reach just bellow...
  5. G

    Interstellar Trade: Value, Resources & Unobtanium

    Lets suppose that in SF universe, due to hyperspace, travel between stars don't require planet killer energies. A mothership can transport kilotons of goods with energy of a few Tsar bombs, travel takes months. What could be valuable enough to transport between star systems? Are there solar...
  6. Ackbach

    MHB Simple Model of 9/11/2001 World Trade Center Collapse

    $\newcommand{\un}[1]{\,\text{#1}}$ https://www.youtube.com/watch?v=xSVHWiZu8NM One of my relatives sent me a link to a video (above) claiming that the WTC towers must have had internal demolition in order to fall as fast as they did. I think there are good reasons to oppose the theory, but I...
  7. I

    MHB  with Cost,Volumn,Profit and Trade Discount

    Hello everyone, I have tried to solve the questions below, but I'm not sure if they are correct. Please help. Thank you. -------------------------------------------------------------------- 1/ The Scarlet Letter bookstore has \$85 000 of sales, variables costs of \$36 550, and fixed costs of...
  8. Andreas C

    How come weight difference doesn't cause problems in trade?

    This is not strictly a physics question, I just figured this is the best place to ask it. I think everyone is familiar with the subtle difference in the effects of gravity from the poles to the equator. At or near the equator, objects weigh about 0.5% less than they do at or near the poles. My...
  9. K

    I Space & Time: 2 Qs for Forum Members

    Two questions for you lovely and helpful forum members: 1. I have two clocks far from a massive object, relative to which I am at rest, and I let go of one of the clocks. I let it free-fall for 186,000 miles, and then I observe both clocks. Is the falling clock observed to be one second behind...
  10. B

    What blue collar trade requires the most academic knowledge?

    I'm curious about what blue collar trade requires the most academic knowledge to perform in a competent manner. I'm not asking what blue collar trade requires the most knowledge or skill to perform competently. I'm asking about academic knowledge only. Both HVAC technicians and electricians...
  11. Caolan

    Plasma Industry trade journals for plasma fusion

    Hello, as a software engineer I am used to having industry specific trade journals from ACM that discuss Operating systems, genetic algorithms, neural nets, etc. ... Are there any equivalent ones for physics that covers fusion plasma and it's topics such as electromagnetism, superconductivity...
  12. J

    Help with an Econ question regarding gains from trade

    Homework Statement A free market can be described by the equations Qd = 180 – 3P and Qs = –50 + 2P. What are the equilibrium conditions in this market (that is, find equilibrium P and Q) and what are the maximum gains from trade in this market? Homework Equations The Attempt at a Solution To...
  13. 9

    Very basic: constant in gravity-model of trade

    Very basic: "constant" in gravity-model of trade The gravity model of trade states that trade between countries depends on the size of their economies (bigger = more trade) and distance between them (larger = less trade). The formula is: Trade = G ((Mi*Mj)/(Distance)) Mi is size of economy...
  14. D

    What hands on trade would benefit an electrical engineer?

    I'm going into my second year of a 2 year electrical technology diploma (technologists are like middle men between engineers and technicians), and got hooked on discovery channels' show "biggest brain theory" recently. More than anything, the documenting of the contestants' work in the workshops...
  15. T

    News Why is European Union so irrational in regards to trade with China?

    The trade balance between EU and China is -156.3€ billions, yet today EU agreed with China (http://uk.reuters.com/article/2012/09/20/uk-eu-china-summit-idUKBRE88J0QR20120920) to avoid trade protectionist measures. They keep doing this because China keeps buying EU countries' bonds and has many...
  16. O

    Bilateral trade between all countries

    I'm interested in finding a database that contains the bilateral trade (imports/exports) between every pair of countries. I've done some googling and I can't find it all contained in one place. Preferably if it was in a downloadable csv file (which would basically be a godsend for me) but...
  17. B

    News Free trade reduced to one sentence so even a liberal can understand

    The more people with whom you trade the richer you get, regardless of whether they are across the street or across the world; the fewer with whom you trade the poorer you get. If you could not trade with anyone you would have to make everything yourself and you'd be very poor or dead.
  18. N

    Using mathematical methods to trade Forex

    Hello, so I've been in the forex market (currency trading and exchanges) for quite some time, I've done reasonably well, however I was curious as to how perhaps calculus and other mathematical methods could benefit me. Basically, I am a day trader...I wanted to know if there is a way to predict...
  19. M

    What is Australia's desired trade growth rate in relation to GDP?

    Hi I was just wondering if anyone could please tell me what Australians desired trade balance growth rate is Per year of GDP (macroeconomic policies)? is trade aimed at a target of 3 % of GDP? i know inflation = 2-3% GDP = 3% but cannot find trade? Any help would be really...
  20. G

    AP Calculus AB Solutions 1969-1978 willing to trade

    I'm in need of the solutions/scoring guidelines to the AP Calculus AB Free Response Questions 1969-1978... I have the questions I just need the solutions/scoring guidelines only If anybody would like to share this document that would be wonderful it would really help me out in studying for this...
  21. G

    Can I trade my released ap exams on here?

    Homework Statement sorry I got a huge collection of released ap calc physics etc. exams on here and am woundering if I can trade I've seen lots and lots of topics on here of people discussing trading exams and they were old but they were still on here, they weren't deleted or locked up or...
  22. Ƒ

    US Education System: Academic vs Trade Schools

    Why doesn't the US use an education system similar to the one used in China? One in which only those who deserve to go to school can. The majority of people in public schools are not there for academic pursuits and continually ruin the environment for those who are. Why shouldn't there been a...
  23. W

    News Stimulus spending (split from cap& trade thread)

    Stimulus spending (split from "cap& trade" thread) Don't worry, Obama can spend $10,000,000,000 per year for 10 years with one hand tied to the tele-prompter.
  24. Andre

    News Free speech and cap 'n trade troubles

    http://www.foxnews.com/politics/2009/11/17/epa-employees-silenced-criticizing-cap-trade/ http://video.foxnews.com/11685042/gag-order/?category_id=c985e69916535a2170b2b18ab0ab7eb60401f9bb. There must be strong feelings on both sides of the dispute or?
  25. W

    How Do Trade Certifications in the USA Compare to Australia?

    Hello, In Australia getting a trade certification is a long and painful process (electrician, boiler maker, carpenter ect) you do a 5 year apprenticeship where you get paid almost nothing. For comparison of wages. A check out chick at Coles will get between $17-$21 an hour. A first year...
  26. S

    News Cap & Trade and the Tragedy of the Commons

    Is Cap and Trade a solution to the Tragedy of the Commons? Are there better solutions?
  27. A

    News Is SIFTA the Solution to Reducing Gun Violence?

    lol - yes it's another gun control thread. but with a particular question about a particular treaty. http://www.armstradetreaty.org/att/att.framework.pdf http://armstradetreaty.org/att/why.we.need.an.att.pdf Some people seem to go ballistic when this issue is debated, stating that it is...
  28. Andre

    News Health Care Reform or Cap-and-Trade CO2: Which Should Take Priority?

    What decision to make? http://thehill.com/leading-the-news/dem-centrists-press-pelosi--to-shelve-climate-change-bill-2009-05-06.html James Hansen, NASA climatologist has an outspoken opinion about cap and trade: Temple of doom So what would save more lives? reforming health care or...
  29. T

    What are the Pros and Cons of Free Trade between the US and Canada?

    Free Trade is obviously an important issue in politics around the world. Could anyone give me reasons for or against free trade between the US and Canada(i.e. the pros and cons)? t'would be much appreciated. thnx:biggrin:
  30. J

    Trade: Production Possibility Boundaries

    Trade: Production Possibility Boundaries Many years ago in an economics class I remember learning about production possibility boundaries as a model of international trade. http://tutor2u.net/economics/revision-notes/as-markets-production-possibility-frontier.html I was thinking a bit about...
  31. J

    Is Protectionism an Optimal Trade Strategy?

    Protectionism is often viewed as positive for the country that implements the protectionism but bad globally due to losses of efficiency and miss allocation of resources. Because protections measures are often met with counter protectionist measures countries try to trade freely and fairly for...
  32. P

    Trade limit specialisation NEED HELP

    This is the question.. Suppose that by devoting all of its resources to the production of A, the nation of Econia can produce 50A. By devoting all of its resources to the production of B, Econia can produce 25B. The comparable figures for the nation of Optima are 5A and 5B. According to the...
  33. K

    News Free Trade Agreement: A Path to Reducing Poverty in S. Africa?

    the southern african developing countries have made a free trade agreement. my question is how can we ensure that this agreement benefits the people in the fight against poverty. this is the topic of an essay that i have to do, any help would be very appreciated.
  34. M

    Schools Which is More Beneficial: College or Trade School for Advancing in IT?

    Hello, I'm looking to advance in the world of IT and in need of some expert advise. But let me first tell you a little about myself... I am a 26 year old student. After completing an Associates program at DeVry, I went for my A+ certification. And I recently completed a Network course at a...
  35. W

    Economics - Outrageous Admisitrative Barriers to Trade and Australia's Economy

    Hey guys post all the stupid and outrageous barriers to trade excuses that you can find here like this one: The Belgian government in retaliation to imports of tuna cans (*i think it was that, if not something with a small packaging) decided to implement restictions that the text size had to...
  36. N

    Computer Hardware Trade: International Business Perspective

    I am looking for information related to computer hardware trade... which covers from prespective of international business..like major key players,,import,,export...restrictions that sort of things... but till now all my efforts have been unsuccessful to find such infn. I will be really...
  37. P

    News Record $68 billion trade deficit in July

    https://www.cia.gov/cia/publications/factbook/rankorder/2187rank.html Hello, No. 1...5...0, greetings from No. 14 :rolleyes: Your country is going busted and all you can talk about is terrorism? LOL This may well be my last post before I get banned so take it as a last ditch effort for...
  38. A

    News Let's talk about the capitalist idea of 'freedom': free trade

    Hi all So-called "free trade" is one of the holy grails of capitalism, is it not? And the USA takes the lead in creating and defending free markets? How, then, does one explain this? Just one example of 'capitalist freedom':rolleyes: This is just the tip of the iceberg, of course - if...
  39. S

    Is From Free Trade to Forced Trade by Peter Urmetzer worth reading?

    Has anyone read "from free trade to forced trade" by Peter Urmetzer? I just finished reading it. It was a bit of an eye opener - it describes free trade as a neutral activity - not good or bad. Great book
  40. I

    What is the true impact of free trade agreements on the American economy?

    I was watching a program last night on PBS about the ongoing debate regarding free trade and agreements such as NAFTA and now CAFTA. I consider myself a fiscal conservative, and while I favor free trade in general, so far I find myself very concerned about such trade agreements. Though the...
  41. russ_watters

    Seattle and Chihuahua trade weather

    So what the heck? I get down to Chihuahua (4 hours south of El Paso) and they have their first two rainy days of the year. Real rain - the kind with thunder and lightning and hail (see pic). Meanwhile Seattle is having what passes for a heat wave in the pacific northwest. Damnit, Seattle, I...
  42. R

    What Should We Choose? Alien Trade Proposition Questioned by UN

    This was posted in another forum and I was just wondering what the Physics Forum thinks should be chosen. ----------------------------- Alien trade Imagine if you will. An alien spacecraft the size of London appears suddenly over New York. After the inevitable panic, mayhem, calls...
  43. turbo

    Revolutionary Clocks: Improved Navigation & Trade With Pragmatic Innovation

    That "totally irrelevant" clock may mean little to you, but it and its competitors made global navigation and trade (and projection of military force) a lot safer and more viable. Historically, pragmatic, results-oriented innovations have made investment and risk-taking more attractive, and...
  44. T

    Did WTC Dust Reveal Explosive Residues?

    You guys would not believe what I learned yesterday! The story goes like this: 10 months after 9/11 I met girl in Chicago who was in NY days after the towers collapsed,she was so shocked at what happened and she is very patriotic may I ad, that on her return to Chicago area, she took with...
  45. D

    Get Rich; The Secrets Of Trade ->

    Ok, This is some physical problem translated in the field of trade. Say we have you, me and some third person, each with 5 apples and 5 dollars. Having money makes you capable to buy. Having apples makes you able to sale certainly. How do you outrich the rest of us? Know that you're free to...
  46. J

    What Caused the World Trade Center Buildings to Collapse?

    World Trade Center Buildings Why did they collapse downward as if they were being demolished through the use of explosives strategically placed and detonated by demolition professionals?
  47. U

    Nick"Nick's Pursuit of Physics: Choosing a Trade & Preparing for the Future

    Hello all, My name is Nick and I'm a 14 year old freshman in high school. Since I first heard Michio Kaku on Coast To Coast AM a few years back I've dreamed of being a physicist. Naturally I've been into science and the sciences as my father is an enviromental science teacher at my local...
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