Apeofman

Just had op so will keep it short:-) Mostly i agree with you. BBC Link about Aerosols and Arctic warming. According to the article the problem is not related to the creation of more clouds.

I agree entirely. You noticed my attempt at poetry ). I did not use the exact phraseology of Lorenz, because i was making a general statement that small changes can have large consequences. It seemed a more appropriate metaphor than say, "the straw that broke the donkeys back". Sometimes a simple poetic line can save a lot of words. Sorry it didn't work for you. Currently i have not formed an opinion about the validity of the "butterfly effect" specifically. Common day experience provides enough examples of small changes having large expected and unexpected consequences, to convince me that small changes can lead to large changes, unexpected or not. This happens whether they fit into some known equation or not. Whatever opinion i or others have on the matter, does not alter the fact that small changes, such as the increased level of aerosols in the atmosphere can cause large changes in the ecosystem:eek: . Human-produced Aerosols in Many Arctic Clouds Contribute to Climate Warming I agree entirely with the point you are making, although i don't know anything about your poetic "hermit crab fart". Currently i have not formed an opinion about the validity of the "butterfly effect" specifically. Are you implying that Nature does not setup such situations? Ape numbers are like yeast to wine, nearly fermented.

Strange that no one has answered the question. Can mankind save itself with technology? Maybe i'v posted this thread in the wrong place. Yes i know that i didn't use a question mark. The fact that "70 percent of natural ecosystems to end by 2050" is an informed guess. I suggest does not remove the fact that the eco-system is changing the environment, in ways that threaten the existence of human beings as well as most other types of animals. "A butterfly flapped it's wings, and now, another day i feel the wind that blows, where my house once was.(ApeofMan)" It is not Earth that is threatened by man. Nor is life itself, there are no doubt life forms that will find the new environment very comfortable indeed. As you point out there have been 5 major mass extinctions. Given that it is the current ecosystem that we have fitted into so well, and it is the workings of that eco system, which are changing. I tend to agree about timing and final outcome. However, i suggest that the "probabilities" of mankind fitting into the environment to come, is also in the order of "trying to hit a flea with a rock from 10 million miles away". The "outcomes" may be very different from those expected. Given that the temperature in Antarctica has risen unexpectedly by 5 degrees Celsius, one might expect sea levels to rise faster than predicted previously by doom sayers. That is a lot of mass being repositioned on the cracked egg surface of Earth. Antarctica will tend to rise, and the sea bed to sink by a seemingly small amount. "A butterfly flapped it's wings; and now, another day, i feel the wind that blows, where the trees that shielded my crops, once stood.(ApeofMan)" It does not seem unreasonable to expect the rising sea level to trigger seismic events. There are a few we know about that are over due. Yellow Stone Park U.S.A. for one. If one of them is large enough perhaps it will cause a nuclear style winter. That may cool things down a bit, but it won't clean up the ecosystem. I'd like an expert to comment on that possibility.

In a dark room, rub the tube with a woolen cloth. See what happens when you remove it. Albert Einstein also said

You can try this Wiki link for lessons about electronics. Electronic circuitry has many similarities with hydraulic systems. Conductor .. Water pipes Resistors ... Narrow water pipes Capacitor ... Reservoir Battery ...... Reservoir etc.

I think the scope of your question needs narrowing a little. Are you interested in the general idea as to how a particular part such as the disk drive mentioned works, in which case it's best to ask about the device you would like to understand. Or are you more interested in the actual circuitry, the workings of capacitors, resistors, and other components that give the device it's functionality.

Oh dear! According to an article in "New Scientist" 21 Jan 2006. More reactive nitrogen falls out of the air now than farmers put on their fields in the 1950's. Reactive nitrogen is generated naturally by lightening The same article also claims that this is due to the addition of reactive nitrogen into the environment caused by the ways of man. Such as using fertiliser to feed our populations, the use of most fuelled land, air, and sea vehicles. It is also predicted that 70 percent of natural ecosystems to end by 2050. The most worrying aspect of most forms of reactive nitrogen is their contribution to Eutrophication. Eutrophication is defined (by http://toxics.usgs.gov/definitions/eutrophication.html) as a process whereby water bodies, such as lakes, estuaries, or slow-moving streams receive excess nutrients that stimulate excessive plant growth (algae, periphyton attached algae, and nuisance plants weeds). This enhanced plant growth, often called an algal bloom, reduces dissolved oxygen in the water when dead plant material decomposes and can cause other organisms to die. There are other harmful effects associated with reactive nitrogen. It causes health problems, smog, and acid rain. On top of which, each molecule of nitrous oxide is 300 times worse than each of carbon dioxide in it's effect on global warming. Given the current lack of human action to resolve carbon emissions (it is probably too late to stop it) the human race as a whole is unlikely to act immediately to limit the damage that is being done right now. The reasons why humans will not address the problem are the same as for global warming. The immediate self interest..jobs,food,comfort,the economy,peace etc..think about it as you drive the kids to school, or when you fly off to your hard earned holiday. Mankind is very clever at devising ways to satisfy it's desire to live in comfort. Unfortunately, Man's in built self interest is also clever at dismissing the need to address the consequences of Man's ways. All transformations have consequences. Don't worry, if we don't cure the problems that we are causing to our planet's eco systems ourselves; God's angel, Nature; will resolve the planet's problems, the way it usually does when it is disturbed. Extinction! Ape numbers are like yeast to wine, nearly fermented.

The point made by the article' date=' is that 70% of the anthropogenic nitrogen in the atmosphere is now due to man. This form of nitrogen IS disrupting the normal nitrogen cycle. Full info. is in this months issue of Newscientist (UK magazine). I've just had a quick look on their web site at this url http://www.newscientist.com/channel/earth/mg18925351.500.html which has minimal info. It costs money to get the full article that way so i can't look any deeper via that page. The printed article contains the opinions of quite a few scientists eg Mark Sutton head of atmospheric sciences at the Centre for Ecology and Hydrology in Edinburgh,Uk. If you can't get a copy of the article where you live, let me know and i'll try to extract most pertinent details by hand. Ape numbers are like yeast to wine, nearly fermented.

Mankind is very clever at devising ways to satisfy it's desire to live in comfort. Unfortunately, Man's in built self interest is also clever at dismissing the need to tidy up the mess Man's ways make's. Some of mankind, are arrogant enough to believe that a God will come to clear up the planet, and provide their every need. Others believe God's angel, Nature; will resolve the planet's problems, the way it usually does when it is disturbed. Extinction! Ape numbers are like yeast to wine, nearly fermented. Latest news from "New Scientist" 21 Jan 2006. The nitrogen cycle is being disrupted. 70 percent of natural ecosystems are predicted to end by 2050.

Hi, You can find a geometric special relativity calculator at magen.co.uk . Study of it may help you to visualise how the Lorentz transform works, and the relationships between different observers. It is an ongoing project and the documentation doesn't quite fit, but gives enough info. to anyone with a basic knowledge of the subject. No maths are involved or presented. The solutions are from a geometric model/construction, driven by a Java geometry engine. The calculator page can take more than five minutes to load using a 56k modem so some patience is required. Ive been looking for a forum like this for ages. Maybe i'll pose one or two questions myself. The longer i study relativity the less certain i am that i really know it.