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Physics Nuclear power?, Use nuclear reactor to generate energy
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befitozi
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Jun 19 2009, 04:46 PM
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Nice work there TS. These diagrams are very good. Especially those on documenting fatalities. Hopefully people can clearly see the statistics which clearly bust the MYTH that nuclear power is dangerous.
Its akin to comparing on why travel is by far the safest mode of transportation.
I would like to add a question to detractors of nuclear power. You say of the long term effect of nuclear waste, exposure and so. Wouldn't a fiery explosive death be far more of a scary thought when all the methane gas that is trapped in the Siberian permafrost is released and combusted due to global warming which is directly related to use of fossil fuels?
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befitozi
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Jun 19 2009, 09:04 PM
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QUOTE(NicJolin @ Jun 19 2009, 08:49 PM) Unless someone finds a more efficient way to extract hydrogen, otherwise we wouldn't be massively utilizing it. Using hydrogen fuel is more or less just like burning fossil fuel because most hydrogen are extracted from water using electrolysis which the electricity is generated from coal plant etc. Maybe it is much better than burning fossil fuel directly but in-terms of reducing the rate of pollutants released to earth, it is still not sufficiently good enough. Nuclear fusion actually uses the isotopes of hydrogen, deuterium and tritium. Not the standard hydrogen we know. Until scientist can find a different way to initiate the fusion (only way is true fission initially) and sustain it, nuclear fusion as a source of power is still not viable. I'm not so clear on how deuterium and tritium is obtained, but if it involves electrolysis of water, it is definitely worth it. A cup of water can generate as much energy as million of tonnes of oil.
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befitozi
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Jun 20 2009, 01:19 AM
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QUOTE(chezzball @ Jun 20 2009, 01:03 AM) i mean... the current method of producing energy is not bad either.. i mean.. the world is not running out of petroleum or natural gas... tankers are still moving right? ppl said petrol is finishing soon tat's why price so high... actually it's all about the futures market.. these speculator wanna untung money so purposely play the price til high.... earth still haz a LOT of natural resources... why not spend more on enhancing the current method.. instead of wasting money on nuclear power... because the total sum will shows more negative value in the government's account book if we wanna spend on nuclear The main benefit of nuclear energy, aside from its insanely cheap power/cost ratio ( on the long run ), it is also environmental friendly. It won't be a waste at all seeing how we get to reduce the greenhouse gasses. Politically, we will turn many heads in the international scene. Though i don't see a negative reaction on our 1MW fully operation nuclear research reactor. Earth has alot of natural resources, but we Malaysia are running out of oil. Perhaps the true cost benefits of having nuclear will not be seen until we become a net importer of oil. Dangerous? How bout the flying aeroplane that flies over Klang valley everyday? Do you think a meltdown is more likely then a plane crashing into your neighbourhood? Ponder on these. This post has been edited by befitozi: Jun 20 2009, 01:20 AM
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befitozi
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Jun 20 2009, 01:20 AM
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QUOTE(yshiuan @ Jun 20 2009, 01:19 AM) Doesn't fish eat algae as well?
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befitozi
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Jun 20 2009, 01:33 AM
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QUOTE(chezzball @ Jun 20 2009, 01:25 AM) Chernobyl? Do you think malaysian can do a job well done? all the smart ass left to some high paying country dy.. which PhD would still stay in Msia if not those <insert something here> who only carries the title but not the knowledge. I wouldn't risk. Chernobyl is 1 in a few million hours of reactor operation. Don't underestimate Malaysians, they'll probably hire foreigners I would prefer not to risk earth's climate going through an irreversible warming.
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befitozi
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Jun 20 2009, 01:50 AM
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QUOTE(yshiuan @ Jun 20 2009, 01:42 AM) sudden bloom of algae can make the O2 level in the water drops. this will block the sunlight penetrate into the sea and may cause the death of other species. The rate of the fish eating the algae would be far greater then any warm water induced algae boom can do. We are not dumping nitrates into the ocean mind you. Just plain fresh H20.
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befitozi
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Jun 20 2009, 02:46 AM
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QUOTE(NicJolin @ Jun 20 2009, 02:09 AM) Don't think it will lead to eutrophication. Anyway solar energy can be harvested not only be solar cell which the efficiency is utterly low. There's some other method like focusing the light beam from sun and use it to boil water which powers a steam turbine. Such solar power plant is much more efficient and since we're on the equator which is 365days summer, we can really consider about this. But still...the govt wouldn't bother of it We may be at the equator, but don't forget, we are a tropical country. When thunderstorm comes, we lose power. Until energy storage( which is infact one of the hardest thing to do) becomes better, we cannot use solar as our main source of energy. This post has been edited by befitozi: Jun 20 2009, 03:14 AM
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befitozi
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Jun 20 2009, 01:50 PM
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QUOTE(chezzball @ Jun 20 2009, 01:37 PM) hire foreigner will be very expensive.. there goes taxpayer money again  I guess you really don't get the point of going nuclear do you?
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befitozi
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Jun 20 2009, 03:58 PM
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QUOTE(SeaGates @ Jun 20 2009, 03:52 PM) Solar energy is actually a wasted resource, so every small bit of harvesting counts. Sunlight contains a lot of energy but the problem is the harvesting method which have pathetic efficiency. We will see that improves in the future to a point that efficiency rate overtakes conventional power plant. Steam based power generator efficiency is not very high. Maybe 30-40%? Majority of the energy are lost through heat and sound. Nuclear power aren't a total solution to fossil fuel plant because it isn't renewable either. We will eventually run out of fission material. So the ideal 'solution' is to supplement fuel based power plant with renewable energy, reducing the strain on limited fuel, be it uranium or Gas/Oil/Coal What i was trying to say is, if we were to make say 75% of our powergrid sourced by solar, in the event that the sun does not shine, we will have power shortages. It is even more impractical to harvest the energy and store it in giant batteries. Yea fissionable material is not renewable as well. Though it certainly will last much longer than fossil fuels. If only cold-fusion isn't fiction.
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befitozi
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Jul 3 2009, 04:12 AM
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QUOTE(SeaGates @ Jul 2 2009, 11:48 PM) All natural resource depletes eventually. There's still a lot of uranium for us however. Dare we say that fresh water supply is in dangerous of depleting before uranium does? Especially if we consider the most grim consequences of global warming.
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befitozi
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Jul 7 2009, 03:58 PM
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QUOTE(devil75 @ Jul 6 2009, 10:03 PM) dont tel u me u wanna go bac into the einstein age and talk about how E=mc2 is proved and how it helped with the progress in nuclear advancement Zzzz... This is an open topic , does every science topic has to involve calculations and equations ? Zzzzz When it comes to the science of physics, equations and calculation is the basis of everything. Mind to explain what do you mean by einstein age?
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