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| Thread ID: 138373 | 2014-11-20 19:37:00 | Global Warming......... | B.M. (505) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1388442 | 2014-11-23 18:17:00 | Oh, but producing hydrogen is laughably easy if you know the secret. The internet is rich with vendors keen to pass on their knowledge of simple methods of production for an apparently very economical price. Just search for Brown's gas, Oxygen Di-Hydrogen, or several other terms and you will have a wide range of choices. Apparently the infinite pool of monkeys at keyboards (that are not producing Compleat Shakespeare Collections, or Public Body Policy Statements) are producing Hydrogen Generation techniques at a furious rate. Some of the methods are a little difficult to get started, probably due to the evil machinations of "Big Oil", who also nefariously interfere with other over-unity processes. |
R2x1 (4628) | ||
| 1388443 | 2014-11-23 18:20:00 | But if a car is to be produced anyway would it not be better for it to be electric. The amount of energy it take to refine fuel far exceeds the amount to make a battery. Sadly, your equation is a bit askew when comparing the energy to make a battery with that consumed in making a car fuel tank. :( |
R2x1 (4628) | ||
| 1388444 | 2014-11-23 20:42:00 | But if a car is to be produced anyway would it not be better for it to be electric. The amount of energy it take to refine fuel far exceeds the amount to make a battery. In addition to dugimodo's comments, the rare earths that go into batteries for electric vehicles (and mobile phones, for that matter) are hard to come by - IIRC, the greatest concentration is in China - and were apparently laid down by comets/meteors hitting the earth millions of years ago. So there is a finite supply (as opposed to oil, of which we hit peak about 40 years ago - although we have yet to see a slowing of the supply...) So perhaps we need to look at mining asteroids so we can continue driving cars (and updating our Facebook status while out and about)... |
johcar (6283) | ||
| 1388445 | 2014-11-23 20:59:00 | Oh, but producing hydrogen is laughably easy if you know the secret. Sure its easy,we did it at school (from water). Its also expensive to get any meaningfull amount . Thats why hydrogen is extracted from fossil fuels. Thats where we get it from. The internet is full of BS, claims of water powered cars (where are they) , and perpetual motion machines that could power cities . :-) |
1101 (13337) | ||
| 1388446 | 2014-11-23 21:13:00 | Electric cars have been around since day 1 , almost as long as petrol cars. Electric transport is everywhere, even in trains. They are fantastic engines. But electric power has issues with storage & transmission, thats why trains (for example) use onboard diesel generators to power their electric motors. If all cars were 100% electric, we would have to build nuc or coal Power stations to generate all the power needed to charge them. Petrol is so cheap & high in energy , we use petrol and diesel to produce electricity . Same with coal. That wont change till petrol/coal gets too expensive to use . |
1101 (13337) | ||
| 1388447 | 2014-11-23 21:56:00 | "Oh, but producing hydrogen is laughably easy if you know the secret. The internet is rich with vendors keen to pass on their knowledge of simple methods of production for an apparently very economical price. Just search for Brown's gas, Oxygen Di-Hydrogen, or several other terms and you will have a wide range of choices. Apparently the infinite pool of monkeys at keyboards (that are not producing Compleat Shakespeare Collections, or Public Body Policy Statements) are producing Hydrogen Generation techniques at a furious rate. Some of the methods are a little difficult to get started, probably due to the evil machinations of "Big Oil", who also nefariously interfere with other over-unity processes." Beautiful, R2x1, so droll. |
zqwerty (97) | ||
| 1388448 | 2014-11-23 22:32:00 | Climate change aint nothing new :-) Back in the 70's, climate change was a decline in temp towards another ice age cycle. There was even talk of schemes to artificially raise global temps to stop the decline , crazy schemes like covering arctic regions in soot to absorb sunlight . |
1101 (13337) | ||
| 1388449 | 2014-11-24 00:19:00 | Climate change aint nothing new :-) Back in the 70's, climate change was a decline in temp towards another ice age cycle. There was even talk of schemes to artificially raise global temps to stop the decline , crazy schemes like covering arctic regions in soot to absorb sunlight . Dead right, this from 1974. :lol: U.S. Science: Another Ice Age? Monday, Jun. 24, 1974 In Africa, drought continues for the sixth consecutive year, adding terribly to the toll of famine victims. During 1972 record rains in parts of the U.S., Pakistan and Japan caused some of the worst flooding in centuries. In Canada's wheat belt, a particularly chilly and rainy spring has delayed planting and may well bring a disappointingly small harvest. Rainy Britain, on the other hand, has suffered from uncharacteristic dry spells the past few springs. A series of unusually cold winters has gripped the American Far West, while New England and northern Europe have recently experienced the mildest winters within anyone's recollection. As they review the bizarre and unpredictable weather pattern of the past several years, a growing number of scientists are beginning to suspect that many seemingly contradictory meteorological fluctuations are actually part of a global climatic upheaval. However widely the weather varies from place to place and time to time, when meteorologists take an average of temperatures around the globe they find that the atmosphere has been growing gradually cooler for the past three decades. The trend shows no indication of reversing. Climatological Cassandras are becoming increasingly apprehensive, for the weather aberrations they are studying may be the harbinger of another ice age. Telltale signs are everywhere from the unexpected persistence and thickness of pack ice in the waters around Iceland to the southward migration of a warmth-loving creature like the armadillo from the Midwest.Since the 1940s the mean global temperature has dropped about 2.7° F. Although that figure is at best an estimate, it is supported by other convincing data. When Climatologist George J. Kukla of Columbia University's Lamont-Doherty Geological Observatory and his wife Helena analyzed satellite weather data for the Northern Hemisphere, they found that the area of the ice and snow cover had suddenly increased by 12% in 1971 and the increase has persisted ever since. Areas of Baffin Island in the Canadian Arctic, for example, were once totally free of any snow in summer; now they are covered year round. Scientists have found other indications of global cooling. For one thing there has been a noticeable expansion of the great belt of dry, high-altitude polar winds the so-called circumpolar vortexthat sweep from west to east around the top and bottom of the world. Indeed it is the widening of this cap of cold air that is the immediate cause of Africa's drought. By blocking moisture-bearing equatorial winds and preventing them from bringing rainfall to the parched sub-Sahara region, as well as other drought-ridden areas stretching all the way from Central America to the Middle East and India, the polar winds have in effect caused the Sahara and other deserts to reach farther to the south. Paradoxically, the same vortex has created quite different weather quirks in the U.S. and other temperate zones. As the winds swirl around the globe, their southerly portions undulate like the bottom of a skirt. Cold air is pulled down across the Western U.S. and warm air is swept up to the Northeast. The collision of air masses of widely differing temperatures and humidity can create violent stormsthe Midwest's recent rash of disastrous tornadoes, for example Sunspot Cycle. The changing weather is apparently connected with differences in the amount of energy that the earth's surface receives from the sun. Changes in the earth's tilt and distance from the sun could, for instance, significantly increase or decrease the amount of solar radiation falling on either hemispherethereby altering the earth's climate. Some observers have tried to connect the eleven-year sunspot cycle with climate patterns, but have so far been unable to provide a satisfactory explanation of how the cycle might be involved. Man, too, may be somewhat responsible for the cooling trend. The University of Wisconsin's Reid A. Bryson and other climatologists suggest that dust and other particles released into the atmosphere as a result of farming and fuel burning may be blocking more and more sunlight from reaching and heating the surface of the earth. Climatic Balance. Some scientists like Donald Oilman, chief of the National Weather Service's long-range-prediction group, think that the cooling trend may be only temporary. But all agree that vastly more information is needed about the major influences on the earth's climate. Indeed, it is to gain such knowledge that 38 ships and 13 aircraft, carrying scientists from almost 70 nations, are now assembling in the Atlantic and elsewhere for a massive 100-day study of the effects of the tropical seas and atmosphere on worldwide weather. The study itself is only part of an international scientific effort known acronymically as GARP (for Global Atmospheric Research Program). Whatever the cause of the cooling trend, its effects could be extremely serious, if not catastrophic. Scientists figure that only a 1% decrease in the amount of sunlight hitting the earth's surface could tip the climatic balance, and cool the planet enough to send it sliding down the road to another ice age within only a few hundred years. The earth's current climate is something of an anomaly; in the past 700,000 years, there have been at least seven major episodes of glaciers spreading over much of the planet. Temperatures have been as high as they are now only about 5% of the time. But there is a peril more immediate than the prospect of another ice age. Even if temperature and rainfall patterns change only slightly in the near future in one or more of the three major grain-exporting countriesthe U.S., Canada and Australia global food stores would be sharply reduced. University of Toronto Climatologist Kenneth Hare, a former president of the Royal Meteorological Society, believes that the continuing drought and the recent failure of the Russian harvest gave the world a grim premonition of what might happen. Warns Hare: "I don't believe that the world's present population is sustainable if there are more than three years like 1972 in a row." |
B.M. (505) | ||
| 1388450 | 2014-11-24 01:47:00 | Hang on to that quote BM. Give it another ten or twenty years and it will be back in fashion. | CliveM (6007) | ||
| 1388451 | 2014-11-24 03:38:00 | Hang on to that quote BM. Give it another ten or twenty years and it will be back in fashion. You can bet on that. :lol: But I like this bit: "Some scientists like Donald Oilman, chief of the National Weather Service's long-range-prediction group, think that the cooling trend may be only temporary. But all agree that vastly more information is needed about the major influences on the earth's climate. Indeed, it is to gain such knowledge that 38 ships and 13 aircraft, carrying scientists from almost 70 nations, are now assembling in the Atlantic and elsewhere for a massive 100-day study of the effects of the tropical seas and atmosphere on worldwide weather. The study itself is only part of an international scientific effort known acronymically as GARP (for Global Atmospheric Research Program). The bas...ds have been screwing us for 40 years at least and are still no closer to consensus, but some, including world leaders, haven't woken up to them. :crying If they can't come up with something solid after 40+ years I recon it's time to end their little RORT and publically flog the lot of them. :mad: |
B.M. (505) | ||
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