Global Definition and 413 Threads

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...

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...

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...

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...

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

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...

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

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...

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...

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...

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?

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

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...

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...

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...

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...

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...

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

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...

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...

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...

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...

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?

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

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

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...

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.

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...

:) Zz.

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?

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...

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...

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...

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...

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...

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...

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...

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...

If so, wasn't it confirmed when we saw an increase in ice levels at the poles this year?

There has been much controversy concerning Global Warming: sun spot activity, only heat radiation at 15 microns being trapped by CO2, vast amounts of greenhouse gases going intot he atmosphere from exploding volcanos and the general cyclical nature of climate change have attempted to explain the...

http://news.bbc.co.uk/2/hi/business/7659086.stm I was wondering how this will affect the humans' migration and global culture (authority too) etc. It seems like China is getting ahead and migration flow will be reversed. I don't have enough data and knowledge to make any predictions but for...

hi am in need of some emotional pictures about global warming other than having images about melting of glaciers

What's the ETA on the global smoking ban? I'd like to know when we can get rid of smokers. Also, since we are on this topic, maybe the Gov. can place a 300% tax on cigarrette sales. Hell, I'll even go ahead and say smokers should be labeled terrorists since they terrorize my lungs and threaten...

This is the last thing the US needs to be worrying about. When he said that he's wanting to better relations with other countries, how did I know that it would also end up costing the US money for these 'improved relations'? This man is going to tax us to death. Obama bill: $845 billion...

find global min/max: f(x,y)= x^3-2y ; 0<=x, y<=1 The Attempt at a Solution - I know that the critical points don't work since there are none, but what I'm not understanding is how to draw the square from 0<=x, y<=1. The solutions has the points (0,0), (1,0), (1,1), (0,1), but I'm...

Famous physicist and Planck Medal-winner, Freeman Dyson wrote an article on global warming controversy in The New York Review of Books It is a lengthy academic article, and is pretty interesting— he says what he wants to say. Nullius in verba, that's hardcore. Science is awesome...

Could you explain the meanings of EW global fit,pole mass,gluon fusion? Thank you very much!

determine the global extreme values of the function on the given domain: f(x,y)=x^2+2y^2 , 0<=x,y<=1 The Attempt at a Solution - I know you need to evaluate the critical points first and then use the boundary to find the maximum and minimum values, but I can't seem to get the...

First, I'd like to apologize, because there are probably countless threads on GW on here. I just found this article, though: http://www.aip.org/pnu/2003/split/642-2.html And was wondering if anybody could give any more detail. I mean, if it was as good a connection as the abstract seems...

Legendary Climate Scientist Says "Last Chance" to Stop Global Warming WASHINGTON - Exactly 20 years after warning America about global warming, a top NASA scientist said the situation has gotten so bad that the world's only hope is drastic action. James Hansen told Congress on Monday that...