Global Definition and 430 Threads

The Global Television Network (more commonly called Global, or occasionally Global TV) is a Canadian English-language terrestrial television network. It is currently Canada's second most-watched private terrestrial television network after CTV, and has fifteen owned-and-operated stations throughout the country. Global is owned by Corus Entertainment — the media holdings of JR Shaw and other members of his family.
Global has its origins in a regional television station of the same name, serving Southern Ontario, which launched in 1974. The Ontario station was soon purchased by the now-defunct CanWest Global Communications, and that company gradually expanded its national reach in the subsequent decades through both acquisitions and new station launches, building up a quasi-network of independent stations, known as the CanWest Global System, until the stations were unified under the Ontario station's branding in 1997.

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  1. W

    Is the Faint Young Sun Problem Solved by Increased Greenhouse Gases?

    I'm just wondering if Global Warming is considered a fact within the science community? I'm not talking about man made global warming, just global warming in general whether it be caused by nature or man.
  2. F

    Mastering the Global Stiffness Matrix for Planar Trusses: Tips and Resources

    I am having trouble forming the Global Stiffness Matrix for a planar truss. Does anyone know of any good online resources to help me with this? I've found a few, but haven't been much help.
  3. J

    Can trees actually contribute to global warming?

    Is there any proof that it is the CO2 levels that cause the temperature increases, and not that increasing global temps by themselves increase CO2 levels? It seems to me that the warmer it gets the more things would grow as long as they had sufficient water, if more things are growing then more...
  4. Pattonias

    News ABC News->US Military: Global Warming Helps Taliban

    ABC News-->US Military: Global Warming Helps Taliban Apparently terrorism is our fault due to our greenhouse gas emissions. We have been supporting it for years. This is probably one of the most far reaching news stories I have ever seen. Listen for yourself. I can't believe that they are...
  5. M

    Something about Physics and Global Position System(GPS)

    Hi all, Im a international student and studying a project about expain Physics used in the development and use of the Global Position System(GPS) I just want to get some ideas about where I can start to do research. I mean did some one give me some points and infomations for this topic...
  6. K

    Dark Surfaces and Global Warming

    Do dark surfaces exposed to the sun really contribute to global warming?
  7. J

    Global Warming Debate: Refuting Common Arguments

    At school I am constantly called stupid, or an idiot because of my global warming skepticism. I do not try to get into debates, but kids who think the have a good understanding of global warming try to anchor me to debate them. Although I try to avoid debate I do eventually get in them, and...
  8. J

    Exploring Topology: How Can Local Theory Affect Global Structure?

    Many interesting proofs in GR (regarding black holes and singularities, etc.) involve topological methods. However, I don't understand how a theory embodied in Einstein's equations, which appear to me to be local rules of evolution, can ever change the topology since a patch of spacetime...
  9. M

    Finding Global Position from Distance, Phi, and Theta?

    could anyone help me ? i know global position of three flag for example (10,20,30) and i have my distance , phi and theta to flags . could anyone helping me find my position ?
  10. S

    What would it take to turn Earth into a global desert?

    Hello. I am a fiction novelist and a new member here at PF. I write mostly futuristic sci-fi stories so I'll probably be poking my head in from time to time with new questions for you guys. I'm very anal and a stickler for scientific accuracy (or at least as close to accurate as I can get and...
  11. K

    How to estimate the future global population

    Hello everybody! I have been reading about the evolution of population growth since 1950 till now. It had many factors such as development of technology, of medecine, ... Now i want to calculate the future population growth let's say for example for 2050. In those readings i found also those...
  12. K

    How to estimate the future global population

    Hello everybody! I have been reading about the evolution of population growth since 1950 till now. It had many factors such as development of technology, of medecine, ... Now i want to calculate the future population growth let's say for example for 2050. In those readings i found also those...
  13. R

    Global warming isn't anything to worry about

    I've heard a lot of scientists talk about it like it is a fact. They say that it is unnatural and caused by humans. The Earth goes through times where the temperature is very low (the ice age), and times when it is higher. One of those times is right now, I can't understand why so many people...
  14. B

    I'm not worried about Global Warming

    I'm worried what people will do to try to 'fix' Global Warming.
  15. W

    New paper in GRL confirms link between sun and clouds on global scale

    The major conclusion: “A link between the Sun, cosmic rays, aerosols, and liquid-water clouds appears to exist on a global scale…” http://docs.google.com/gview?a=v&q=cache:k3yiHsNVc1cJ:www.wzforum.de/forum2/file.php%3F0,file%3D11877 keep in mind that solar modulation of clouds of even 2-3...
  16. Ivan Seeking

    Paint your roof white to reduce global warming

    http://www.timesonline.co.uk/tol/news/environment/article6366639.ece That should read that it would yield the same benefit as removing all of the cars for 11 years... https://www.youtube.com/watch?v=pLlxjYACa5U
  17. X

    How Do Clouds Respond to Global Warming?

    When it comes to global warming from CO2, the toughest question is how are clouds going to respond? The IPCC has about 20 different climate models, but only one includes a change in cloud cover. The reason is that there hasn't been much evidence (until now) about how clouds would actually...
  18. F

    Can CO2 Increase Temperature in a Sealed Environment?

    I was pondering a posible global warming demonstration. Two identical clear cubes with thermometers in the center. they have some 1 way valve at the top. Put dry ice in one. The one containing the dry ice is initally cooler, but as all of the dry ice evaporates, the cube fills up with CO2...
  19. Y

    Vanishing first betti number of kaehler manifold with global SU(m) holonomy

    Hi, I have the following question. In "Joyce D.D. Compact manifolds with special holonomy" I read on page 125 that a compact Kaehler manifold with global holonomy group equal to SU(m), has vanishing first betti number, or more specifically vanishing Hodge numbers h^(1,0)= h^(0,1) = 0...
  20. F

    Revolutionary Solution for Global Warming: Pumping Excess Water into Space!

    hey guys! why don't we just pump the excess water out the Earth's atmosphere into space? just build a pipe into space? nobel prize here i come...
  21. S

    Glacier shrinkage and global warming

    While glacier shrinkage is occurring almost everywhere, it's possible this could be reversed in high latitudes if continued global warming (GW) is moderate. This is important, because in the best of circumstances, we will not be able to reverse global warming in the foreseeable future. The best...
  22. A

    Global Warming: Unraveling the Confusion

    I've been watching many documentaries on global warming these days. One of them said that: It was a BBC channel documentary. Global warming is causing the temperature of the Earth to rise. Global warming is due to increased CO2 levels in the atmosphere. This CO2 is attributed to human...
  23. O

    News How Does the CBS Tape Impact Global Economy and Terrorism?

    http://www.cbsnews.com/blogs/2009/06/10/world/worldwatch/entry5076823.shtml Well, here's something I don't think I've heard anybody predict. I think the biggest question is how did CBS get their hands on this tape?
  24. B. Elliott

    Ancient Volcanic Eruptions Caused Global Mass Extinction

    Ancient Volcanic Eruptions Caused Global Mass Extinction http://www.sciencedaily.com/releases/2009/05/090528142827.htm
  25. Spinnor

    Systems with global phase invariance, 3D string?

    From: http://en.wikipedia.org/wiki/Quantum_mechanics#Mathematical_formulation ... In the mathematically rigorous formulation of quantum mechanics, developed by Paul Dirac[7] and John von Neumann[8], the possible states of a quantum mechanical system are represented by unit vectors (called...
  26. M

    Can Human Consciousness Influence Random Number Generators?

    I wonder if many have actually heard of the Global Consciousness project (GCP). Here is a link to their home page. http://noosphere.princeton.edu One of their aims was to deduce whether human consciousness affected random number generators and apparently, increase in collective...
  27. Ivan Seeking

    News Global Derivatives Market now valued at $1.14 Quadrillion

    I have a friend who claims that we have only seen the tip of the iceberg wrt the global derivatives market. I am posting this because I don't know enough about his concerns to address subject - I don't know if this is a credible concern or not. His perspective is that, less China, global...
  28. Q

    Global Extrema/Area of a Rectangle

    Homework Statement Find the dimensions of of the rectangle with perimeter 200 meters that has the largest area. Homework Equations The Attempt at a Solution This is in the section on Global Maxima/Minima so I know it has to be something with graphing a formula and finding the...
  29. sylas

    Estimating the impact of CO2 on global mean temperature

    In another thread (see msg #17 of "Only dirty coal can save the Earth"), user Bystander suggested I lay out more carefully for critical examination the physical basis for the impact of CO2 on climate, so that the assumptions can be seen clearly. This is an excellent idea, and here is my attempt...
  30. ZapperZ

    India's Contribution To Global Warming - Cows With Gas

    This is the reason why we should invent hybrid cows. :) http://news.yahoo.com/s/time/20090411/wl_time/08599189064600 Zz.
  31. P

    What caused the reversal of global cooling?

    Approx. 14,000 years ago, a large percentage of the globe was covered in ice. Estimates vary from one third to one half of the globe covered. This was the result of a several thousand year build-up. The passing of each winter/century/decade/millenium, would have seen an increase in the ice cover...
  32. W

    Bundles and global sections, triviality.

    Hi: I am trying to understand more geometrically the relation between triviality of bundles and existence of global sections. This is what I have for now. Please comment/critique: Let p:E-->B be a fiber bundle : consider E embedded in B as the 0 section. Then...
  33. B

    News Is the Global Warming Hoax Really Unstoppable Every 1500 Years?

    I have recently completed S. Fred Singer's marvelous book, Unstoppable Global Warming Every 1500 Years In it, Fred shatters just about every global warming myth in existence. Of course Fred is a world authority on climate physics, and as such, he thoroughly documents his findings. About...
  34. L

    News Global Warming and the stupidity of (wo)man

    Global warming is happening, it could however we a natural cycle that the Earth goes through and little effected by humans, we really don't know for sure. We sure should hedge our bets and try not pollute this planet but it seems that these global warming activists have an unstated major premise...
  35. Loren Booda

    Lightning as a measure of global warming

    1. Is an annual increase of lightning strikes worldwide a measure of global warming? 2. What has been the correlation between such discharges and temperature in recent decades?
  36. E

    Are We Actually Entering an Ice Age Instead of Global Warming?

    Does anyone else believe that we are not going through global warming but actually and ice age?
  37. Evo

    NASA NASA global warming satellite crashes after launch

    Ouch, $289 million. I wonder why it malfunctioned? http://news.yahoo.com/s/ap/20090224/ap_on_sc/sci_carbon_satellite
  38. X

    Is Earth's Temperature Governed by Physics Alone?

    The temperature of the Earth is governed by physics, namely the Stefan-Boltzmann law which states that the amount of energy radiated is proportional to the fourth power of its temperature. ERad = SB * Temp^4. Or Temp = (ERad/SB)^0.25 Where: SB, the Stefan-Boltzmann constant is 5.670 x...
  39. wolram

    Weighing Public Opinion vs. Global Impact: Examining Unproved Theories

    How much weight if any, should be given to public opinion to scientific theories that are, let's say difficult to prove, and could have significance effects globally.
  40. X

    Global Warming Changes in Heat Content

    Some people tend to think of Global Warming in term of air temperatures on the surface of the earth. However, the Earth is composed of many more things that can absorb heat energy. Interestingly, there is not as much coverage on all the other parts of the Earth as they don’t have as much of an...
  41. ZapperZ

    Hundreds Attend Global Warming Protest

    :) Zz.
  42. A

    Carbon filters? part soloution of global warming?

    When air goes through a carbon filter it separates the carbon and turns it into water and lithium carbonate. Could the lithium carbonate be sold and that money used to buy parts for hydro electricity plants that use the water, or the water be used for drinking as it is already pure?
  43. Astronuc

    News Is The Global Economic Crisis Worse Than Expected?

    There is a thread on the US economy, but the problems are globally endemic. All national and regional economies are affected, and the problems undermine security and general welfare. It appears that the global economic crisis realized in 2008 is more severe than expected. Downturn...
  44. J

    (global) Gauge invariance and field theory

    Hi everyone, This is my first post and I hope to get some better understanding of something that has been bugging me. I understand (global) gauge invariance in the sense that |\psi\rangle denotes the same (physical) state as e^{i\varphi}|\psi\rangle, or more generally, the physical state...
  45. E

    Does the data support anthropogenic global warming theory?

    According to HadCRU global temperature warming per decade has been .12C with uncertainty intervals of .13C (since 1995) (using Santer17 formula) which given my thoughts of an upward heating bias due to data handling and urban heat island effect still indicates that since 1995 - there has been no...
  46. B

    What Are the Causes of Global Warming and Its Impact on Our Air Supply?

    I have read that some Scientists do not believe that the emissions from industry, power stations, transportation etc is the ultimate cause for a global warming scenario & they can't put there finger on another cause. Of course science is the study of what we don't know rather than what we do...
  47. H

    Is Stratospheric Cooling Proof of CO2-Induced Global Warming?

    Officially there is no global warming (NOAA ,October 8, 2008, National Weather Service JetStream - Online School for Weather) http://www.srh.noaa.gov/srh/jetstream/atmos/ll_gas.htm quote It has been thought that an increase in carbon dioxide will lead to global warming. While carbon...
  48. Andre

    What are the global temperature trends according to four different data sets?

    Let's compare the four predominant data sets about the global temperature updated to include October 2008: Shown in thin lines are the monthly averages while the thick lines represent 12 months running averages. Red and orange are based on surface meteo station data as compiled by NASA...
  49. O

    Exploring Global Extrema of Multivariate Functions

    Homework Statement Find the global extrema of the function f(x,y)=sinxy on the closed region given by 0<x<pi and 0<y<pi. You must provide a complete analysis of the function both inside the region and on each of the boundary lines. Be sure to clearly indicate the maximum and minimum values and...
  50. Astronuc

    News What steps are needed for global economic recovery?

    There are threads about 'What's wrong with the US economy", but I thought it would be interesting and worthwhile to look at what's going on with various economies around the world. For example - Iceland's economy crashed. http://www.nytimes.com/2008/11/09/world/europe/09iceland.html How...
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