something to the complex maneuver known as the flash rising off again. at the end of this guy's side, lost it all, 45 seconds, reaching the top speed of almost 250 kilometers per off. so for me, for now of an update for you at the top of the gulf has in berlin. thanks for watching the g music con, be destroyed. you can try, but it's impossible. she performed for head lice in australia. the was the nazis, the 2 musicians who lived in the

savannah office austin film about the sounds of talent and inspiring story about surviving music under the swastika stuffs may 25th on d, w. the. this is supposed to be the next speaker for nuclear energy. it promises to fix all the problems with the additional nicea power, making it cheaper, faster, and easier to build. smaller, safer modular units, a game changer for nuclear going forward. it's called a small modular reactor and over the past few decades, well then 80 start up. some projects have been working on this futuristic vision. but there's one big problem. so far, any one has actually been bills. there reasons why it's more than what your director is not being billed, even though many people are talking about them. you have how is in the spotlight

again as well, rushes to find clean energy alternatives. as a modest could be a really useful tool for doing things that big nuclear plants come through yet. and they have a leg up for many of us because they could provide constant power everywhere. but after decades of new to the decline west, some countries are really struggling to make this technology work. and developing countries like china and russia and india seem to be pulling ahead fast. so some of us deserve all this hype. and how can we actually make them happen? powell is a very divisive topic with a lot of strong arguments for and against the technology. it's a powerful, low carbon alternative to fossil fuels. and unlike renewables like solar and wind, which fluctuate based on the weather, nuclear as a consistent output, the i. e, a, an international body that advises governments and the transition to clean energy, physically has to more than double by 2050. if we want any chance of reaching that 0. so the problem with nuclear is that it's really big and expensive. takes too long to build and could cause the civilization ending disaster in the seventy's and

the leading up to the eighty's. there was high public support. dr. could he could go up to research as public support for nuclear energy in the united states in india? that momentum really crashed us through the eighty's and ninety's with the a journal about 3 mile island. incidence that happened, we made a video on the rise and fall of nuclear energy as a tool to fight climate change, which you can watch you nuclear and as you're really struggling to bounce back from those big this, austin's and when the focus shame a nuclear accident happened in 2011 the industries credibility took another massive hit, but things are starting to look up again. public support has maybe started trickling back to pre fukushima levels and support is even higher for small moduler other type of advanced reactor technologies. that might be because a lot of these s a models have some very flashy advertising, westinghouse, 8300 small, modular react and pointer as a more power plants. while there are lots of

different smiles being developed, this currently full main types each using a different coolant to manage the extreme heat of a nuclear fusion reaction. they are light water, high temperature gas, liquid metal, and molten salt, s amounts. the most common type though is light water reactors, is very similar to traditional nuclear power plants which are almost all water cold . that makes the much easier to design and get approved as today's nuclear galatians mostly based on water cooled reactance. so for light water reactors, the idea is to take a big traditional nuclear power plant, shrinking down and mass producing it would work very much like airliners. dr. adam stein is an engineering research on consultant. he focuses on nuclear energy instead of how we typically build most nuclear power plants in the past, which is completely from scratch, easily mostly at the power plant site. if you think of a large jumbo jet,

it's built in the factory in a consistent manner with the same parts every time. with rigorous quality control. dr. steins, as making it in a factory means you can keep the same specialized workforce, the same supply chain and the same standards and just ship the already made power plant to wherever it needs to go. the small plants would have a much smaller output than a full size nuclear reactor. most definitions of a, some us put them anywhere up to $300.00 megawatts. which means today's average full size nuclear reactors, output molding triple the biggest as a month. but in exchange, they take up very little space. nuclear already uses the least amount of land amongst low carbon energy sources by far as a box could take that to the next level. use go. one of the biggest small developers claims that this power plant, the volume of 12, will take up 0.13 square kilometers of land, but could output the equivalent of 18.6 square kilometers of solar panels. so that could get nuclear power online in more places much faster. what about the risk of

nuclear accidents? well, as miles have an answer for that too, and it's called passive safety, or nearly all of today's nuclear power plants, the biggest safety task is keeping the quote of the reactor cooling off. if the plant suddenly shuts down and stops making power. if the cooling stop circulating for long enough, the fuel will get too hot and meltdown that creates the risk of leaking radioactive material into the surrounding area. if all the material doesn't stay contained in the cool, that's what happened at the foot machine. but if you plant in 2011, after it was quite triggered a safety shut down, the plant automatically switch to its backup generators to keep the coolant circulating through pumps. but an hour later, a massive tsunami treated by the os quite wiped out the plants, backup systems, and 3 react his notes down. so to avoid this type of scenario menu, a generation power plants use passive and self contained safety systems that don't rely on human operators or external power is of purchasing a safer than previous models. and many small safety designs claim to be completely

passively cooled without the need for any external water. either to do that, they would use a natural force called conviction, which is basically the same thing that happens in a kettle. when liquids and gases get hot, they rise to the top and when they cool, they sink to the bottom, creating a loop to take advantage of conviction. these estimates have a series of chambers that can allow for passive circulation of water. the reactor cool is placed inside a lodger shell, which is submerged in water in a containment structure on the ground. in an emergency, the nuclear reaction which generates heat would shut down and then react to would close itself off, not letting anything in or out. so to get rid of the remaining heat inside, the cool, conduction comes in as the water inside the cool hate stop. it rises to the top, turns into steam and gets pushed out into the lodge, a show which is kept cool from the water. it's of motion that steam hits the lodge, a show condenses back into water and pulls at the bottom. ready to flow back into the reactor and continue the cycle inferior. that cycle can just keep going until

the reactor cools down enough to no longer be a threat. but while there's a lot of hype around these innovative designs, the likelihood of s, a mazda actually looking out depends a lot on how you look at them. or are they like any other type of entity souls standing on their own feet and making a profit in the free market? well, i think a strategic asset. the governments can use to fill the gaps while these things out of fossil fuels, even if they lose money building. let's say that 1st way is the approach in the us and a you and so far, hasn't worked out too well. it was just too expensive that stuff to fredericka freeze a physicist, a nuclear energy research a. she says that despite us, so just some last option projects in the us, in europe, over the past decade, small nikia has run into the same problems as big nuclear. with heavier regulations, project delays and costs blow out. and because it's smaller, it also makes less money as an os. um, it was the economy of scale in energy production. that the smaller the output,

the less avenue you can make. so you have to have really tailored applications do this really, really small market. when you enter the rising inflation and increasing costs of a central materials to make these plants like steel, you get a recipe 5th financial meltdown that happened last november to new scale. one of the 1st and most promising small startups and the only one with us regulatory approval of to decades of planning the company cancelled its 1st as a deployment over act as an idaho, you scale says the project called the c a p. p faced unique challenges and ended due to a lack of subscriptions. but many analysts say increasing costs played a big part. no scan was supposed to be buildable united states, which as long history enough to pop up labs that has the biggest. so the fleet and still it did not work on to tell us like um, support from the government support from the regulatory authority. still, it did not work out, it was just too expensive. the price tech was like to kind of our thing at the end

about $4.00 times than what they usually have at to mention. look at floor plans right now. a new skills president says the company is continuing with its other domestic and international customers to bring americans some off to market, including a project to replace the deacon mission, to copeland intermedia with avoid some opposite. but new skill is an example of how tough it is for private companies and stocks in the west to get small money to react is going. so what about that 2nd approach? looking at some of those as a strategic national investment that might not necessarily make a lot of money. that's the approach taken by countries like china and russia. small projects almost entirely state run operated by national companies like china, c and c, and russia's rows at home in the past. countries that were able to build nuclear power successfully and have those be successful. industrial investments were ones that were able to control their costs by avoiding unnecessary regulatory burdens, and then also control revenue by allowing them to make sure they could compete

effectively on the down stream that they could sell into a market and be assured of a reasonable rate of return for selling power that save efficient in economics and policy analysts to specializes in china is introduced back to countries like tied out right now they do a great job controlling costs upstream and they do an excellent job ensuring revenue for the power sales downstream. that's because even if you have a great design for an us a month extra, it's a quite a few different steps have to come together to make it will happen. is the materials needed to build the facility? you all have to be certified as nuclear se. then there's a workforce to build the plan and the workforce to operate and then there's getting the fuel needed to run the react, serrato's. and all of these steps being done by different private companies who all need to make a profit. countries like china and russia, package up all of the steps and sell them as a bundle. it's not just the technology you're getting, it's also coming with the entire supply chain solution. it's coming with the uh, with the low interest loans that are provided by the export and companies banks, right. maybe the import export bank of china is getting

a big low interest. well and something like that. and for the current environment, it feels like that's just much more compact tests. and fishermen says that approach has allowed similar projects in china to keep moving even when they run into challenges. in 2019 chinese national new corporation, they got to work on a 125 megawatt smile project on hang on the island cold link. little one. it's scheduled to be finished by the end of 2026, which would make it the 1st commercial land based somehow in the world. and that strategic national investment approach could also make some, some of those that have really nation uses more likely to look out to like high temperature gas cold or molten salt reactors, which are currently some of the only alternatives to cold for industrial processes that need a lot of heat like making foods and then or chemicals. we made a video and molten salt reactors and for him you can watch him. so that's the end of the story, right? state run projects have a solution that will finally get some walls happening. and soon they'll be hundreds

of react is being built and shipped all over the world. not quite. there are still a lot of questions hanging of some of those that need to be answered before the dream of factory built nuclear can come sure. the world's energy needs are increasing rapidly and we're still a long way away from nets they're emissions. so well that's the most do have they uses some experts say countries at the side to invest more nuclear. a more lucky to the big a lot smaller plants, china is going to do better than everybody else. and it's still only going to have this kind of impact on the d carpet, nice ation journey and on the offsetting of coal attorney and well public opinion on you can't use improving the idea of having thousands of small nuclear plants all over the world, raises concerns for some about how all that a waste is going to be managed. so i missed them. our designs have close to fuel cycles. that could be read the key last up to 30 years. but the science is still out on that. and some studies have shown that somebody's using more not less nuclear fuel overall, are still many advocates point out that we're probably going to need nuclear for

a lot longer than 2050. or whenever we managed to reach that 0 volts population in engine needs are going to keep rising. and the strategy of using nuclear low side renewables looks like it's here to stay. so what do you think of a small nuclear reactors that us know in the comments and subscribe to our channel? we released new videos for you every friday. the drama and special effects operating so makers are becoming more innovative. you see this welcoming everything by default sent to tell them that there's a major market for, for to send them up because audiences want more. we'll show you how they create the on 3 magic and you enjoy the 77 percent next on d,

w. and who tackled to the special hot spots in germany, dw travel extremely visit the so you've seen perfect picture and the figure in and you and the more by the acting of duck. yeah. yeah. and rumsey, no, you want to be like them onto this 77 percent show i, i.