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March 21st, 2009 at 1:07 pm
Yeah but convincing 7 billion people to agree on something ain’t gonna happen.
I wouldn’t consider “a few thousand years” even with double the earth’s population to be particularly short term.
Maybe i’m just an optimist
Give us a few thousand years and we won’t be confined to this rock any more.
March 21st, 2009 at 1:07 pm
lol now your thinking like me. There are simply too many people on this planet. Close to 7 billion members of a species is too much. If people want to continue to live in semi luxury for an extended amount of time then the sensible solution would be to cut the population so there are more resources to go around. The hard part is getting people to have less children. Fusion is good short term but people get lazy: if it’s working for us now we will not change it untill there is a problem.
March 21st, 2009 at 1:07 pm
Well that’s true, it takes hydrogen-1 a long time to become deuterium naturally so theoretically it may run out. But there is genuinely no such thing as unlimited energy, it has to come from somewhere. However given the amount of deuterium and the relative power ratio compared with conventional energy sources, it still makes sense. Without something to replace fossil fuels we have only two options, Reduce the global population by a massive degree, or return human society to the dark ages.
March 21st, 2009 at 1:07 pm
Deuterium is a hydrogen isotope, a naturally occuring thing on earth, it just has a neutron. So….. if you get rid of the hydrogen you eventually loose one of the building blocks of water. This video is very misleading it uses phrases like virtually unlimited..but that means the source is limited. The answer to the energy crisis is to use less, not create more, there is only so much energy we can get and will always face problems of resource depletion and lack of energy if we dont change.
March 21st, 2009 at 1:07 pm
It’s not water itself but the Deuterium in water that’s used.
March 21st, 2009 at 1:07 pm
Sure it’s long term but not renewable so eventually when you run out of water and lithium ….then what? Why would anyone want to turn water which is key to our planets life and climate, into helium which is useless as far as earth is concerned. One bathtub for one person for 30 years….rough math…. thats about 1931200000000 Litres for the entire world population in one lifetime turned into helium forever… the ammount of water in the oceans is 1370000000000000000000 litres so think about it
March 21st, 2009 at 1:07 pm
These “JET”fusion guys have been saying they will have an excess power fusion in 30 years,but they have been saying the same thing for the last 60 years.
March 21st, 2009 at 1:07 pm
The plasma is suspended in a vacuum by superconducting magnets, so it can’t make contact with anything.
March 21st, 2009 at 1:07 pm
In a thermonuclear bomb it is.
In a fusion power plant, it’s provided by … stuff. Stuff I don’t understand.
March 21st, 2009 at 1:07 pm
First of all, the argument was wether or not fusion had been done, and a hydrogen bomb “does” fusion. Second, the primary stage, which is the fission reaction, may use a fusion catalyst in some designs. However, the primary stage is still just the trigger for the secondary stage, which is a fusion reaction. Some designs also use a tertiary stage, which is another fusion reaction.
March 21st, 2009 at 1:07 pm
If it reaches over 100 million, why is it not melting the building ?
March 21st, 2009 at 1:07 pm
Well then I wish the Europeans well because it would be good for mankind.
March 21st, 2009 at 1:07 pm
chairde,
Fusion in that power plant concept isnt a chain reaction at all. If the breeding of tritium is stoped, the whole reaction stops.
March 21st, 2009 at 1:07 pm
krayzeebean, its you who needs education. Fusion is only a catalyst to increase the efficiency of the fision reaction.
March 21st, 2009 at 1:07 pm
The largest current experiment is the Joint European Torus [JET]. In 1997, JET produced a peak of 16.1 MW of fusion power (65% of input power), with fusion power of over 10 MW sustained for over 0.5 sec. – There’s your proof of concept, zexecl
March 21st, 2009 at 1:07 pm
In order to start a Fusion reaction you need a high energy spark which is provided by a nucluer fisson denonation
March 21st, 2009 at 1:07 pm
Wrong its not the energy input, its the energy needed to confine nucleur Fuison. Inorder to start a Fusion reaction a fission reaction is used as a park, which is seen in the hydrogen bomb. However you get a miniature sun on Earth, (damn hot) so inorder to contain this magnetic field needed however needed to confine it would be the same energy as the fusion itself
March 21st, 2009 at 1:07 pm
Jomomma, you should read up on how hydrogen bombs work before posting. Since you apparently missed my earlier comment, I’ll repeat: Hydrogen bombs use a fission explosion to compress a secondary fuel, creating a much larger fusion explosion.
March 21st, 2009 at 1:07 pm
its too bad that the 1st one that isnt a prototype isnt expected to be done until 2035…
March 21st, 2009 at 1:07 pm
the hydrogen bombs are different. they use nuclea FISION
March 21st, 2009 at 1:07 pm
Fusion occurs in the sun because of its massive gravity and heat. With enough energy and heat you could probably make fusion occur here on earth, but the cost of the energy put in would outweigh any output.
March 21st, 2009 at 1:07 pm
@chairde
Fusion has been experimented and to confirm what krazyzeeban said, its an uncontrolled mechanism as in the case of the bomb. The main problem with fusion in a controlled manner is containing the plasma. Magnetic fields haven’t been entirely successful. Nevertheless fusion is a renewable source and just as Solar was once very inefficient with p-v cells and is now becoming more feasible with parabolic mirrors and etc, fusion technology will probably advance for electricity generation.
March 21st, 2009 at 1:07 pm
Just because it uses more energy now doesn’t mean that it’ll always be that way. If you give up just because your first experiments don’t work out perfectly then we’d still be in the stone age.
ITER is expected to produce more energy than it consumes, and other reactor designs theoretically will produce more energy than you put in. Solar power alone isn’t enough to satisfy the worlds demand for energy.
March 21st, 2009 at 1:07 pm
It is a good wish to have but it is simply not feasible in reality. Those experiments are bogus and the Europeans are not going to succeed. Control of the chain reaction is important and also why have an energy source that takes more energy than it will produce? In any case, I wish the Europeans well. Go solar instead, God has already worked out the control problems and other issues.:-)
March 21st, 2009 at 1:07 pm
The hydrogen bomb uses a fission explosion to compress a secondary fuel, resulting in a fusion explosion. Read up on hydrogen bombs and come back. I say again sir, JET has already performed a fusion experiment generating electricity. The problem with fusion power now is that it requires more energy than we get out of it, but it’s still fusion. ITER is expected to generate more power than was input. Fusion power is much safer and cleaner than fission, something like Chernobyl is impossible.
December 19th, 2009 at 3:54 pm
i have been advocating this for a long time now
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