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Yes, Fusion Is The Future
Trying again on the fusion breakthrough..
Comments
Answer to the energy crisis for sure, power for Iron Man too 😉, but real question is… how to scale up? The goal for many physicists for sure, but like quantum computing, still a few years away. Certainly the future with new technology could be bright.
The efficiency was ~1% , so there is still much stuff to cover
@Korakios, he says 50% more energy resulted… does that jive?
That's an amazing scientific achievement and clearly needs to receive massive investments for humanity's future energy needs given that fossile energy will sooner or later run dry (most of the studies indicate that we might have already passed the peak oil...)
However, if I am not mistaken, it took 40 years to reach this amazing result with fusion and (I am guessing) it will probably take at least another 40 years before we can consistently rely on fusion as a common source of energy. So yeah fusion will probably be the source of energy by the end of the century. The question is, who will be there to use it and in what condition ?
We should stop all emissions of greenhouse gases now, if we wanted to have a chance to slightly limit dramatic consequences of climate change. We are obviously far from it, so until we can develop fusion on an industrial level, meanwhile we will still largely rely on fossile energy and therefore, we should expect gradual and steady deterioration of living conditions on earth, and I mean by that extreme weather condition, rarefaction of water, drastic reduction of crops and massive extinction (which already started). Do you remember what Einstein said about bees ? Is a world without biodiversity worth living in ?
Another interesting question is what type of energy are we going to use to
1- produce all the necessary metals for this kind of technology
2- initiate and maintain the plasma inside the reactors
Sure, it is incredible that we managed to replicate the type of reactions happening at the center of stars. That's really exciting.
But I hardly believe fusion alone will help humanity tackle the huge problem we're facing NOW. So fusion = future, probably. but that's clearly a long shot. Having fusion in an hardly liveable place is better than nothing and hopefully the promise for something greater for the next century if we're wise enough not to kill ourselves or each others until then.
Sorry for the long comment that seems unenthusiastic. Actually fusion is really cool (is that an oxymoron or just a moron talk?)
Track down a good analysis. I read an explanation a few days ago that I don’t have time to re-find where it was explained that the positive energy output didn’t take into account all of the input energy. It said that while this was a breakthrough of sorts that it is not an indication that there is a near or mid-term breakthrough that will lead to systems that will be able to generate enough excess energy to be usable. The amount of energy required for an incredibly tiny positive output has enormous.
There seems to be consensus among physicists that the type of fusion apparatus used won’t be viable due to its requirements. The most optimistic interpretation seems to be that that we are still decades away from any sort of practical breakthrough. The significance of this experiment seems largely symbolic.
Drambo could do it
Yep, never mind 42… Drambo is the answer to life, the universe and everything! 😉
From memory, it was something along the lines of the reaction itself showed a gain in energy (simply in terms of the energy that went in was less than what came out), but because they had to use lasers to achieve it, the overall process either wasn’t anywhere near as profitable, or actually lost energy. So theoretically they’re getting there, but still the actual technology just isn’t yet up to scratch.
The energy from the lasers fired to the cells was indeed smaller and more energy was produced ,
BUT
the energy of the factory needed to feed and amplify the lasers was x100 more , there is still much stuff to improve for practical usage (decades) . The (luck of) power efficiency was described on the analysis of the experiment , but the media as usual preferred click-bait titles
watch the video
( it's great YT channel imo , keeping things as simple as possible )
Also this one, starting at 4:00.
The lady has an incredible channel.
The video is a year old but is relevant. Very clear presentation of the large difference between the in/out plasma energy and the real world in/out of a workable power plant.
When I saw the title I thought your jazz compositions were going to change direction…
I had been thinking this whole day about this topic and i came to my conclusion (my personal opinion):
Clean energy is a myth.
Conservation of energy is a two-sided coin. When you create energy, it has to be drawn from somewhere else. There is no such thing like excessive energy where the output is larger than the input.
For every bit of energy captured, there has to be an even amount taken away somewhere else.
This also accounts for fusion energy.
First of all, you need to build a power plant. That involves a lot of energy and that comes in diminishing returns of energy consumption.
1. The building materials has to come from somewhere. It has to be mined and transported witch involved a lot of fossile fuels and loss of nature (open mining, terrain coverage for transport)
2. The workers need transport and to be fed. The consumers need to be facilitated (power grid) etc.
3. To facilitate 1 and 2, you need factories to build cars, tools, chemicals (fuel) etc.
It is like an onion that can be peeled off in layers, but in a whole still remains an onion.
Nucleair fusion is simply switching an onion to a tomato.
There is a second problem:
People tend to live to their standards. So, if there is a wealth of energy available, they will consume it, and therefore break down our earth even faster.
Clean energy can't keep up with "dirty" energy that is needed to make it.
It's a question of seeing the whole picture.