Why Don’t We Have Nuclear Fusion Power Yet?

this episode is sponsored by LastPass humanity hasn’t exactly done a great job
when it comes to energy production I mean don’t get me wrong we’re good at
producing enough electricity to meet our needs but it’s come at the cost of
releasing billions of tons of carbon dioxide into the atmosphere and wreaking
some pretty serious havoc on the climate not to mention that the planet has a
fairly limited supply of the main fuels we use like oil and gas one way of
reducing our reliance on them is with nuclear fusion releasing energy by
fusing atoms together the idea is so much potential that researchers have
been working on it for at least half a century the problem is we’re still a
long way off there’s a running joke among physicists
that fusion power is always 30 years away but that doesn’t mean we’ve given
up there are experiments in the works right now that are way more advanced
than anything we’ve ever done and if all goes well the future of energy
production might involve much more power and way less pollution than we could
ever hope for with the technology we have today we already have a few options
when it comes to clean energy but they all have their drawbacks things like
solar and wind power are great because they’re renewable and don’t cause
climate change but they can hurt the ecosystems around them and usually
aren’t very efficient they’re also inconsistent and we’re still trying to
find practical ways to store enough power to compensate for times when say
it’s super cloudy for a week and there’s also nuclear fission which releases
energy from splitting atoms usually uranium or other heavy elements like
plutonium specifically fission involves splitting the center of the atom
it’s nucleus which is where the term nuclear energy comes from but supplies
of the heavy elements we need for this could run out pretty easily too even
worse fission generates tons of radioactive waste from the leftover fuel
we don’t want that hanging around on the planet for a couple thousand years
polluting the environment and threatening lives
nuclear fusion on the other hand avoids all of these problems it barely releases
any co2 doesn’t produce radioactive fuels as waste
and unlike renewable sources such as solar and wind we could control how much
power we generate to keep things in line with demand if we could figure out how
to use it effectively that is to generate power all we have to do is get
nuclei defuse and capture the energy from the particles that are released in
the process unfortunately getting them to fuse involves an enormous amount of
pressure and heat just temperature-wise we’re talking close to a hundred and
fifty million degrees Celsius least in the conditions here on earth
sure we can get atoms to fuse in h-bombs thermonuclear weapons use a fission
explosion to set off a fusion explosion but while that’s a super effective way
to blow something up it isn’t really a safe useful or efficient way of
generating energy the problem is it’s hard to get fusion going without using
the energy from a massive explosion to do it a few different chemical elements
can undergo fusion on earth but scientists have pinned most of their
hopes on combining deuterium and tritium those are just ordinary hydrogen nuclei
with one or two extra neutrons tacked on respectively the two nuclei are able to
fuse into helium releasing a neutron with a bunch of energy in the process
even better that helium nucleus can give up some of its energy to nearby
electrons which in turn can heat up more deuterium and tritium causing even more
fusion to happen that process is called alpha heating and without it a fusion
reactor isn’t likely to produce enough energy it’s sort of like trying to start
a fire in a cold environment unless you supply enough heat in the first place
your fuel will just lose energy to the surrounding cold air instead of igniting
and starting a self-sustaining burn when the conditions are just right for fusion
to deliver more energy than the heat energy required to get it going it’s
called ignition in thermonuclear weapons that’s what the fission explosion is
full in a fusion reactor it means you need to be able to hit some seriously
high temperatures and there are two major approaches to this ICF and mcf ICF
or inertial confinement fusion involves filling a tiny pellet with deuterium and
tritium and getting them to fuse by imploding the pellets with high-powered
laser beams the National Ignition facility in California has aimed to do
exactly that firing the world’s most powerful laser split into a hundred and
ninety-two beams onto fuel pellets the size of a pinhead when the pellet
implodes the fuel inside undergoes fusion and releases energetic neutrons
but for full ignition the pellet would have to collapse perfectly inward to
transfer all of the energy from the lasers into the fuel and start a
self-sustaining reaction focusing the lasers onto a target that small is
tricky enough but the real difficulty is making the pellet collapse in on itself
in just the right way it has to be made as perfectly spherical as possible and
pressure has to be applied equally in all directions so far the most
successful strategy has been to put the pellet in a pencil eraser sized gold
cannister with the lasers firing into that instead when the gold heats up it
emits x-rays on the inside generating a more symmetric pressure on
Pellatt so it collapses in on itself and if’ has been able to generate small
amounts of energy from this type of fusion in 2013 the lab actually achieved
a gain in energy for the first time getting more energy from the neutrons
exploding out of the pellet than the energy delivered to it from the x-rays
in the canister unfortunately it wasn’t more energy than the total amount going
into the system from the lasers and ultimately that’s the benchmark for
turning fusion into a practical way of generating power getting more energy out
than the total we put in to get it going one of the biggest problems is that when
the outside of the pellet is heated to extreme temperatures it tends to burst
off in an unstable way creating an uneven pressure on the target despite
those setbacks between 2010 and 2012 NIF went from needing to produce thousands
of times more energy to get to ignition to only needing tens of times more
energy that a hundred fold difference came from more effective pellet designs
but keeping up the pace of improvement has hit a wall recently the other
approach is mcf or magnetic confinement fusion which works in a totally
different way it’s based on a type of reactor called a tokamak a doughnut
shaped chamber that produces incredibly strong magnetic fields inside the
reactor there’s deuterium and tritium in the form of plasma or charged gas
basically a bunch of nuclei and electrons just floating around then you
blast the plasma with microwaves or a beam of neutrons heating it up and
ultimately making it undergo fusion better still if you line the outside of
the reactor with lithium neutrons released in the fusion process will
generate tritium introducing more fuel into the reactor a lot of the excitement
surrounding fusion has focused on the MCF approach but the problem is that
containing a plasma with magnetic fields is like trying to herd trillions of
uncooperative cats all at once they just keep trying to escape the magnetic
fields and the way they interact with the plasma leads to what’s called
turbulent behavior flowing in a way that’s twisted and complex on every
scale you look at it turbulent fluids are tricky to make certain kinds of
predictions about even with computers and I can get even harder as you heat up
the plasma to the kinds of temperatures needed for ignition so designing and
maintaining magnetic fields that can keep the fuel mixture contained it
becomes more of a challenge like ICF mcf experiments have managed to achieve
fusion but only a little the record for energy gained that is the amount of
energy that came out compared to the energy used to heat up the plasma in the
first place is still held by an experiment in 1997
using the jet reactor in England on that occasion it produced 67% of the energy
that was initially put in the reason we haven’t been able to improve on it much
in the past couple decades is that jet can only do so many fusion experiments
with deuterium and tritium the neutrons released in those kinds of experiments
tend to make the surrounding material radioactive so to keep the total
radioactivity levels low experiments tend to only happen every few years plus
tritium isn’t easy to come by and jet doesn’t have a way of producing lots of
it on-site so they have to be sparing with how much they use but the record
could be broken in 2019 when jet is scheduled to run a new batch of fusion
experiments with deuterium and tritium it’s also managed to achieve some
seriously high temperatures over 200 million degrees although not for very
long as recently as 2018 though there were a
couple promising results from some smaller mcf experiments for example a
Chinese experiment called East managed to maintain a temperature of a hundred
million degrees in its reactor and even sustained fusion for ten whole seconds
one of the biggest developments in 2018 wasn’t an experimental result it was a
letter signed by experts from the US National Academies for Sciences
engineering and medicine in it they declared their support for an experiment
in southern France that isn’t even done being built yet it’s called ITER and
when it’s done it will be the world’s largest tokamak reactor 35 countries
have come together to build it it’s a long road but by 2035 eiders should be
ready to start deuterium-tritium fusion experiments and because it’s so much
larger than jet the world’s current biggest mcf reactor it should be able to
hold a lot more plasma in its magnetic field the larger volume means the plasma
interacts with itself more than in a reactor like jet this keeps more of the
heat trapped in the plasma and makes it likely or for ignition to happen the
goal is to generate 10 times as much energy from fusion than the amount of
energy supplied to it that would be the first viable demonstration of fusion as
a power source but increasing the size of the experiment brings along a whole
set of extra challenges large magnets require lots of energy and even more
work to operate the magnetic fields they generate and contain such a large amount
of plasma in it even if it works there are still some challenges to tackle like
dealing with the radioactive material that gets generated in a reactor from
all the parts being bombarded by neutrons it’s not radioactive fuel waste
like an efficient reactor so it’s not as bad but it is still some radioactive
stuff that will have to eventually disposal plus extracting
energy from the neutrons generated by fusion wouldn’t be quite as
straightforward as it is in conventional power plant the walls of the reactor are
what captured the neutrons and heat up in a power plant the walls would then
heat water surrounding the reactor into steam to drive turbines but being
bombarded by all those neutrons can make the walls brittle and radioactive over
time to handle that damage for a long-term reactor scientists need to
design walls that are more resilient but still able to efficiently transfer heat
out of the reactor although ITER won’t be able to deliver
power researchers hope that if it’s successful those issues could be worked
out in an even bigger test reactor called demo in the meantime we’ll keep
working on all those other options for cleaner energy like solar power and
nuclear fission a lot of work is being done to make those technologies safer
and more environmentally friendly too as for fusion for now the old joke holds
true fusion power is still at least 30 years away but maybe it won’t be for
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Comments 100

  • How would renewable resource be a problem? I call bullsh!t!!

  • Wouldn't it be better to accelerate charged deuterium streams to each other?

    Wouldn't that be cheaper?

  • Short answer; the worst way to try fusion (Tokamak) gets almost all the money and the more promising ways to do it get peanuts

  • 2035??? Hire chinese

  • The cosmic synthesys and rarety of lithium byrilium and boron.

  • Pretty sure AOC would want fusion banned. She already wanted fission banned from green new deal

  • That's a pretty shallow analysis of wind, solar and nuclear fission. Fusion is a pipe dream.

  • All I need are the six infinity stones

  • Nonsense. Fusion, if it ever is somehow made to work, produces radioactive by-products such as radioactive tritium. You still are left with a huge radioactive disposal problem. This business about "no radioactive disposal" is total nonsense. But after almost 100 years of working on it, we are still no closer to making it work, and we probably never will get it to work. Consider that the sun, halfway to the core, only produces about 270 watts per cubic meter, a very pathetic power output, and that's with half of the mass of the sun driving it. I don't think controlled fusion will ever work.

  • Would it not make more sense to redesign a fission reactor that would.
    1. Burn its own waste as fuel and reduce or completely eliminate waste.
    2. Be designed in a way that a meltdown is impossible.
    3. Be designed to NOT produce nuclear weapon materials.

    I know we can do these things for sure.

  • wouldnt that just make life on earth alot simper and cleaner

  • Litteraly every video about fusion:
    "Fusion will probabily be good but we haven't invented yet"

  • Maybe we won’t need fusion if this new engine the Wall Street journal just reported on, that’s run by magnets, turns out to work. Not perpetual motion. But close!

  • Humanity won't be here for longer to succeed in fusion because of Alzheimer, Parkinson, Cancers, Heart diseases and immense amounts of self-righteousness and ignorance. Good luck.

  • Not one Word about the German Stellarator Testreactor Wendelstein 7-X? Sad.

  • I can never forgive you for the cat joke

  • In other words, it's complicated. sigh

  • Why don’t we just improve rocket tech so we can send all the nuclear waste to outer space. Or to the sun!

  • Emm… As have been brought up by some people… Why use something as inefficient as water-turbines to collect energy from heat?

    Because it's pretty inefficient.

  • Easy steps to get a very strong password:
    1-Type a "shape" on your keyboard.
    2-Substitute the actual letters for leet
    3-Roll a joint or something, you were basically done at step 1.5

  • Until we crack gravity, or the production of antimatter, we'll never have fusion. We might be able to one day build a facility at the Jovian moons to take all their water and convert it into fuel for a planet-sized reactor…but that's it. They'll never be smaller than that without at least one of the two techs mentioned above.

  • The solution comes in the form of the squared cubed law.

  • I have brilliant idea.
    1- use hydrogen from petroleum or melatonin hormone or other biological sources.
    2- put laser machines inside the reactor that uses photons from the explosion to form laser and direct the beam outside the reactor

  • Simple. Climate "scientists" want to push the world into socialism before anything is done that solves peak oil/AGW.

  • China is going to the far side of the moon to mine Helium-3 for nuclear fusion.

  • promote truth thorium heavy water salt reactors check that out smart guy

  • MIT designed a reactor with active cooling channels running through it and a design that allows the vacuum chamber to to more easily be replaced. Should make it easier to test different alloys quickly when they get it up and running in the next decade and a half or so. They got funding from a big energy company to get it off the ground. Maybe they can make a hybrid fusion/fission system and dissolve the radioactive materials in the liquid blanket after separating them out chemically? Then get them to decay to something stable faster by hitting them with more neutrons. Or just have a separate reactor that does that specifically.

  • How much nuclear waste is there already and where is it stored?

  • Turbulent Juice…here come the muscular Mannys!

  • a pellet inside a gold cylinder? Fusion cores are coming!

  • If tomorrow “”scientists” said they cracked fusion power. It was 100% safe. Needed no substrate. Generated no waste. It needed no maintenance. What’s more, they also developed a distribution network that was safe, efficient, was already in place, needed no maintenance and could be accessed throughout the world. Oh and yes, it was free to build…THE ONLY CATCH… is you could only turn on the reactor on for 12 hours a day… would you BUY stock in this company???

    Now consider that everything said above is true. It’s the SUN… and we already have it in place.

  • What is DEMO?

  • ITER's unlikely to ever lead to energy producing fusion reactors. It's taking forever to go anywhere because it's run by a classic example of a dysfunctional, international government bureaucracy, and has no pressure to actually deliver anything. They're not even committed to START building a real net-power plant there until the 2040s! And whenever they miss deadlines they just move them back; there's no penalty for delay or nonperformance.

    My guess is that it'll be some sort of university-corporate partnership that produces the first useful fusion reactors. People who have all sorts of incentives to get a working prototype in more like 5 years than 50, and whose management structure isn't a crappy knockoff of the UN or EU. The MIT group is a decent bet, as are a few others. Somebody will be demonstrating real reactors while 'ITER' is still under construction.

  • because fossil fuel companies dont want us to go green

  • Did not understand any of what you said.

  • Those working on "Fusion energy" are lacking in knowledge clearly. They are more likely to destroy themselves and the earth than achieve success going down this road. Time will show and reveal the Truth.

    All I can do at this point is laugh real hard and enjoy the laugh. The situation is like watching primitive apes try to discern how to open a rock. lol

    Maybe you could do yourselves a favor and take a step back to re-evaluate all you do know. Based on what you do know, it should be obvious why these current approaches as well as everything tried and tested since you began have all failed and at a great cost of time, resources and capital that could have solved the world's problems many times over by now.

  • Huhhh?… Hmmm? "Birkeland Current Generator" that can Burn up this Rediculous BullPuckey!

  • Nuclear fusion reactors are not going to happen, ever. Just live with it and stop getting excited about something that will never happen.

  • @UCbxdFa03xXcmkKucGX8IM9Q



    I am now 60, I heard this load of tripe when I was 10 years old and was looking forward to endless clean energy, every 10 years someone comes out with this bollocks.
    Its just around the corner.
    Its just an excuse to throw money away and keep these so called boffins in work at our expense.
    Leave it to people like Elon Musk and geniuses like him and stop with the vocal bollocks and help starving people.
    What a load of hot-air

  • @UCbxdFa03xXcmkKucGX8IM9Q



    I am now 60, I heard this load of tripe when I was 10 years old and was looking forward to endless clean energy, every 10 years someone comes out with this bollocks.
    Its just around the corner.
    Its just an excuse to throw money away and keep these so called boffins in work at our expense.
    Leave it to people like Elon Musk and geniuses like him and stop with the vocal bollocks and help starving people.
    What a load of hot-air

  • I am convinced that I could live with 4-5 100w solar panels, but the batteries still suck and the ones that suck less are way too expensive.

  • Solar Power plus onsite lithium battery storage (Tesla Powerwall). Or, Solar and Wind power with reservoir water energy storage. Or, solar and wind power with continent spanning high efficiency high voltage transmission lines. Or use the millions of EV cars spare battery capacity while they're plugged in to balance the load with zero cost to the utilities. Why mess with spent fusion containment vessels that are radioactive for over 100 years and the incredible cost of building those high-temperature, extremely high-pressure fusion containment vessels? Solar is already less expensive per kW than coal, oil, and natural gas and best yet, it's available right now!!! There are infinitely more homes powered by solar power than there are Earth-generated fusion power!!! So far over $23 billion has been spent on ITIR, an experimental fusion reactor that will produce by design zero output power to the grid. Currently commercial solar is 2 cents/kW (2019). If went spent that on commercial solar, we'd be happily generating 1,150 Gigawatts during the daytime for the next 25+ years.

  • Does ANYONE here remember the Baseball IHT fusion reactor? Not nearly as famous as the Tokamak, but it DID exist, and I was just wondering if anyone near the industry remembers it ever existing.

  • -Why don't we have X technology?
    Because we're not at war or in some sort of race. If you want fusion now? start a war and you'll get it in a year or so.

  • Become muons are little distracted boyfriends that are expensive to produce and are here for a good time, not a long time.

  • While we're waiting around for fusion we should get busy building Thorium reactors.

  • We will never run out of Thorium, or U238, for that matter.

    Fission is easy. Fusion is hard. Very hard.

  • You didn't mentioned LFTR… Why?

  • I honestly don't think energy producers will allow it to happen.

    Fossil fuel companies can transition to being producers of clean energy and act as gate leapers of solar and wind, but fusion messes up the supply and demand that governs the price of energy.

    Too much supply hurts profits, ie, short of some type of major change in the way decisions are made, we won't ever get fusion.

  • For whatever reason, it is always 10 years away.

  • Can the higs boson be used to “herd the kittens”?

  • Isn't the stellarator better than the tokamak? It creates more stability. And what is the reactor that fires tons of pins every second into the plasma? I think it's for stability but I'm not sure I think it's also to 'feed' the plasma. Please help…

  • Fusion energy is 30 years away? Back in the 90's they said it was 20 years away, some one is not doing the math. 😂

  • There’s gotta be some way to use radioactive fission waste for energy. I wonder how much that’s been explored.

  • We do it's just not effective yet

  • React to my reactor.

  • maybe instead of trying to fuse Tritium and deuterium, we should replace Tritium with Lithium. My reasoning for this comes from brown dwarfs, which are sub-stellar bodies with an approximate minimum mas of 13 Jupiters. This is enough for brown dwarfs to being thermonuclear reactions that fuse Lithium and Deuterium. Granted this is nowhere nearly as powerful as stellar bodies with a minimum mass of about 80 Jupiters which is enough to begin a thermonuclear reaction to fuse Hydrogen to Helium.

  • We've had fusion for 4.5 billion years all 93 million mile away from Earth. It is called the Sun. All you need to use it is a solar panel and some plants, and you can get electricity and food for energy.

  • Forget nuclear plants of either kind. Why can't we just use liquid nitrogen turbines? Use ambient planetary heat from the atmosphere , ground, and/or sea to heat it to gas to turn a turbine, and use some solar power electricity to cool it back down to start the process over again by cooling the nitrogen back down to liquid temps. Obviously this would be a closed system and nontoxic, non-radioactive, and non-combustable if the system breaks.

  • Goku and vegita did the impossible and gained fusion so why cant we o-O

  • Thorium fuel in a liquid salt enjoyment seems to best improvement. Forget fusion for now.

  • Huuurrry uuuupppp ! I want my fusion now !

  • Can the minimum amount of constant energy imput needed to sustain a fusion reaction be measured by knowing the maximum mass of a white dwarf? If so, then could it not be mathematically proven whether a Q ratio bigger than one is ever achievable on earth? Does Einsteins' E=MC2 prove that clean or cleanish efficient fusion is impossible on earth? The space-time continuum is a mass dispersing gravity reduction process. Fission is reductive, fusion is not. Surely fusion would have to involve the impossibility of controlled destruction of space-time.

  • Fusion 30 years away? Wrong ! the nearest Fusion reactor is just 8+1/2 minutes away; Just 150,million Km away +/- just a few million km!
    I'd prefer to use that fusion reactor by just building more energy collect collectors
    plus we need some energy storage system too!
    hint: Gravity would help!

  • Love is like Nuclear Fusion, its easy to start fusion (relatively) the hard part is keeping the reaction. Its easy to be in love, hard part is staying in love

  • I wonder what 1 million degree Hydrogen plasma would be like in the atmosphere if it were to leak? Kind of like a propane tank rupture, except it auto-ignites in oxygen?

  • If/when we succeed in producing fusion energy, I think we all need to agree to go back to designing everything like we did in the 50's during the atomic age.

  • take a look at clint sewards work folks, d-d or d-b aneutronic sustained reactions,
    are past tense.

    it was my honor to have met the man

  • The Amish were right, lol, maybe if we lived a lot more like them the planet wouldn't be stuffed soon.

  • The research for nuclear fusion is speeding up. Why this video doesn't tell you that? Fusion may be closer then you think.

  • A false narrative that continues to be proclaimed in mainstream science used here saying that Co2 is a greenhouse gas which it is not…it collects to close to the ground to be one therefore having little effect on the climate.

  • Reminds me of spiderman 2

  • It won't work for obvious reasons. A fusion reactor is not a star.

  • This is the most important engineering project. You don't want China to build the first practical fusion reactor.

  • Solar Cells + Batteries are enough to power the world. Just spend the same $$billions$$ we spend now on fuels and nuclear.

  • ill fart in a can and power the world with MY OWN spicy heat 😉

  • Until fusion becomes a viable source, there's always the LFTR Reactor alternative. Much safer with no chance of core meltdown, less waste, produces energy at a lower cost than hard water reactors, they can be placed anywhere since they don't require a massive water source, even coal powered plants could be retrofitted at their existing locations. These would drastically reduce emissions, so many benefits for the here and now, and the technology is proven to work. Most countries are making great strides in development, including a new variation on LFTR technology, the DFR (Dual Fuel Reactor,) being developed in Germany. . You should re-visit that subject, a lot has changed since your 3 minute video released in 2012.

  • Hey, some organisations in the world don't want us to have a good energy supply. That's why they constantly make up stories why we should stop to use energy soruces.

    First, they came in the 1970s with the scare that we would run out of oil. They convinced oil companies and OPEC to stop taking oil out of the earth and make up for the loss by selling the last oil they took out for much more money per barrel. But this didn't work out well. OPEC an the companies couldn't resist to take more oil out of the earth and make new profits. So prices went down again. We have a lot of oil for a long time to come, possibly even forever.
    Then they tried it with the exhaust. In the 1980s they told us, our cars produced toxic exhaust, we'd have to withdraw from using them. But it turned out you can turn off all the toxic exhaust by unleaded fuel, catalytic converters and similar measures with other "polluters". It didn't infringe on the performance of the cars, and it didn't make them more expensive so it didn't force us to drive worse cars because we can't afford more expensive cars.
    Then in the 1990s, they came up with the claim that CO2, previously called clean, is not so clean after all.
    We can see, they use the method, if at first you don't succeed, try, try again.

    Since nuclear (I mean fission) is an even better source of energy than oil, gas and coal, they made up even bigger tall-tales about the supposed evils of nuclear.

    All the stories why CO2 and fission-nuclear are bad, exist only because some increasingly powerful organisations don't want us to have a good energy supply. This should be obvious. These organisations possibly engage in withholding fusion from us. They successfully withheld thorium liquid reactors from us for half a century, unsuccessful to withhold them forever.

    The intro is a bad intro. THE INTRO IS A BAD INTRO.

    Fission-nuclear is better than oil because it has a higher energy density. Uranium and thorium are more plentiful on earth (oil is pretty plentiful). They've got a lower EROEI factor, their energy is cheaper.
    Fusion has the same advantages over fission.
    That's the reasons why to want fusion. Not a search for "clean" energy.

  • I love how SciShow fails to mention that patents are pending/approval pending on fission that is completely clean… using waste it can run for 50+ years powering a city of ~100k people on about 3 spent rods…. I mean wtf, why hasn't this been approved yet?



  • All we need is the green new deal to pass into law, then we will all be saved. All praise AOC and her immense intelligence.

  • What about liquid walls? Liquids can't be embrittled. Like mercury! Or maybe producing tonnes of radioactive mercury isn't a good idea…

  • Ask the Aliens and get it done! ☺

  • I have a feeling that the oil and fossil fuel companies are suppressing research and lobbying the government to subsidize them instead of fusion research.

  • Pellet Fusion is a rubbish idea, Magnetic containment is better but must be bigger.
    But when I visited a Fusion Laboratory in the UK; I was dreadfully disappointed that they were ignoring the facts they needed high pressure, and heat dissipation.
    High pressure chemistry experiments yield some very unusual compounds. So it stands to reason that our fusion experiments are not stable, maybe due to the fact we need the high pressures.
    Then the last issue is escaping neutrons, which just one escaping halts the reaction completely. :/

  • wrong about solar and wind, how are the parts made.

  • "make steam to turn a turbine". You mean, like in 1884?

  • So solar can “hurt” the ecosystem? Causing shade is worse than building huge housing projects and roads to access them, plus the Wal-Marts, convince stores and gas stations to supply them? Trees cause shade as they compete for sunlight. Whatever, let’s build nuclear reactors.

  • I think we will die off before we make it to the third planet stepped on. There is also a very small, small, if not no chance that the next nearest hyper intelligent life form closest to us, time wise and the stars above will ever find a trace of our existence or how technologically far we've gone. But you can count Carbon 14's to vouch for us

  • Iter. It's pronounced eater with a hard T. Lol, it had sounded funny hearing i-ter.

  • We do, it’s called solar.

  • Yeahh… Watch this guys…. #iterorganization
    They have doing about 40% to complet that

  • Climate scare again. I'm starting to be allergic to it. So, I had to cut watching this video very short. 29 seconds was the best I could do. Thumb down.

  • Somehow I got a feeling , Oil company behind this delay.

  • I distinctly remember like 5 years ago everybody knew for sure that quantum computers were a minimum of 50 years away if they were ever going to be feasible. Then some Canadian lab popped one out that completely changed everything and now quantum computers just completely blew past the most advance super computers ever built in processing power. Just because fusion power research is in a slump now doesn’t mean there won’t be some incredible discover in the next few years that complete revolutionizes the field.

  • Ask the Klanazis !!! The SShadow Government/Deep SState/BreaKKKaway SSivilization knows of things that can assist you . . . .

  • If its been done already, does anyone have the results of the 2019 JET test?

  • Why? First consider the dichotomy between neutron and aneutronic fusion reactions. Magnetic confinement fusion of of deuterium (and possibly added tritium) was first studied by Andrei Sakharov the Father of the thermonuclear weapon in the USSR. Let's state the obvious. The least expensive way to exploit the vast yield of the of the Soviet device would be to detonate it at great depth, vaporize a big bubble of granite or basalt underground, wait for the roof to collapse into a molten pool at the bottom and then extract the energy later using techniques used in geothermal power. Sakharov only used magnetic confinement fusion to study fusion in deuterium (or added tritium). Magnetic confinement research is intrinsically safe and appeals to those seeking a lifelong career.. Before we get to aneutronic fusion, consider the humble neutron generator and journalistic suppression of cold fusion. The neutron generator was first developed by Farnsworth, the inventor of TV in the 1930's long before fission and fusion bombs. Neutron generator are of great worth in petroleum exploration,. neutron activation analysis and so on. The penultimate development in cold fusion neutron generation is the lithium tantalate crystal. When infused with D (and added T) it generates neutrons under piezoelectric excitation. Bad, bad journalists for mocking cold fusion. Consider a modular fission plant using helium as a heat/energy transfer gas at 800 C. or better. Fission pellets are contained within six inch balls of silicon-carbide modulator. Think of some future science fiction in which fission pellets are replaced by some sophisticated descendent of lithium tantalate and helium by deuterium. It would work like a modular fission plant. Magnetic confinement fusion is safe because it can't explode nor reach energy balance nor excess. Fission bombs, reactors, chemical reactors, petroleum storage and pipelines can all explode. That's where energy lives. Aneutronic fusion has little support because of competition by the old. Money talks or remains silent. The best latest aneutronic fusion exploits a proton accelerator focused on a plasma of boron. Neutron are bad because they degrade metal containment, but are the main energy released by D-T reactions. If p-B fusion can reach break even and shows signs of being dangerous it might power us into intergalactic space.

  • Couldn't we use fission to generate the heat required?

  • The talk is ignoring one of the most promising developments, Wendelstein 7x Stellerator.. https://www.youtube.com/watch?v=lyqt6u5_sHA

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