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Global Warming ,Astroids,controling the ...
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IRISH ANGEL Send message Joined: 6 Sep 07 Posts: 183 Credit: 8,139 RAC: 0 |
Global Warming ,Astroids,controling the weather. Are we going to burn up? Are we going to freeze in another ice age? Are we going to get hit by the big astroid ? Is it really possiable to control the weather ? Edit : What's your thoughts about these things? :) Irish Angel |
Scary Capitalist Send message Joined: 21 May 01 Posts: 7404 Credit: 97,085 RAC: 0 |
Global Warming ,Astroids,controling the weather. I throw asteroids at my neighbors frequently. I guess my aim is slipping because not one of them has been fatally wounded yet. Founder of BOINC team Objectivists. Oh the humanity! Rational people crunching data! I did NOT authorize this belly writing! |
IRISH ANGEL Send message Joined: 6 Sep 07 Posts: 183 Credit: 8,139 RAC: 0 |
Global Warming ,Astroids,controling the weather. _____________________________________________________ I love it ! :) Irish Angel |
KWSN - MajorKong Send message Joined: 5 Jan 00 Posts: 2892 Credit: 1,499,890 RAC: 0 |
Global Warming ,Astroids,controling the weather. "Burn up": While the climate is changing (and some attribute it to human activity) the global average temperature has been MUCH warmer in the past -- well before humans showed up. I would say that the Earth isn't likely to 'burn up' (oceans boil, etc.) until the Sun goes nova in a few billion years. "Ice Age": Well, the Earth, historically, has been in a cycle of intermittent Ice Ages for quite some time (millions of years). The glaciers/ice sheets advance, stay that way for a few tens-of-thousands of years, then retreat for a shorter period before starting the process again. .Some say we may be overdue for the start of the next one, some say we aren't. Some say that 'global warming' may be putting off the start of the next one, some say it might be speeding it up. I've heard scientific arguments on both sides of both questions, and I must say that I am not yet convinced which side is right on each of the questions. I guess we will just have to stick around and find out. "Asteroid": Well, they HAVE hit the Earth periodically over the course of time. There is no reason to think that another one won't hit in the future, and every reason to believe that one WILL hit us again (its just a matter of time). Sorry, but if it is big enough to cause an ELE (extinction level event -- that is a 'mass extinction' like what killed off the dinosaurs), its likely too big for us to do anything about with our current technology. I wouldn't worry about it. If another 'big one' hits, it hits. Of course, smaller ones we might have a chance to deflect, thus the reason behind all the Near Earth Asteroid finding projects. "Weather control": LOL... Sure, we can 'control' part of the weather to a very LIMITED extent on a very LIMITED area, and have been for years (since about 1946)... Cloud seeding. Throw, for instance, some Silver Iodide into a cloud, and it might rain earlier than it would have. However, this is very unpredictable and unreliable. This is it when it comes to weather control. 'Global total weather control' is now (and will likely remain for a very long time indeed -- perhaps forever) the stuff of science fiction. |
Kevin Send message Joined: 18 Sep 07 Posts: 2 Credit: 290,018 RAC: 0 |
We know that the magnetic poles switch as that is how geologists found sea floor spreading and led to plate tectonics but this magnetic pole switching is this a gradual event or a rapid one? How will an event like this effect the weather as the magnetic poles protect the earth I think from a certain amount of solar radiation? |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
The Earth climate is best described by non linear equations, which can bring to chaos theory. There are efforts like climateprediction.net to approximate these equations by linear equations, much depending on the initial conditions. Unfortunately, they require a great computing power and my PII Deschutes is not adequate. Maybe they should port these programs to the Playstation3, like Folding@home has done, with terrific results (more than one petaflop). Tullio |
Sarge Send message Joined: 25 Aug 99 Posts: 12273 Credit: 8,569,109 RAC: 79 |
The Earth climate is best described by non linear equations, which can bring to chaos theory. There are efforts like climateprediction.net to approximate these equations by linear equations, much depending on the initial conditions. Unfortunately, they require a great computing power and my PII Deschutes is not adequate. Maybe they should port these programs to the Playstation3, like Folding@home has done, with terrific results (more than one petaflop). Hmmm. Now that I have a better computer to work with, maybe I can donate some time to climateprediction again. The WUs would have taken at least 84 hours on my older laptop! Capitalize on this good fortune, one word can bring you round ... changes. |
Clyde C. Phillips, III Send message Joined: 2 Aug 00 Posts: 1851 Credit: 5,955,047 RAC: 0 |
Maybe somebody declared degrees based on the number of days in a year. Maybe someone called the angle the Sun moves across the stars each day a degree and rounded it off to some convenient number. I put this message in the wrong thread, accidentally. Having too many children causes more pollution which adds to global warming. |
Kevin Send message Joined: 18 Sep 07 Posts: 2 Credit: 290,018 RAC: 0 |
We know that the magnetic poles switch as that is how geologists found sea floor spreading and led to plate tectonics but this magnetic pole switching is this a gradual event or a rapid one? You could look at the following a bit basic http://volcano.und.edu/vwdocs/vwlessons/plate_tectonics/part9.html http://csep10.phys.utk.edu/astr161/lect/earth/magnetic.html http://www.space.com/scienceastronomy/generalscience/earth_poles_991027.html |
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