discoverable. subscribe to the documentary. there's a tendency to think that a bigger is better consider diamonds houses cars but it's often the little things that really makes a difference some so small you can't even see them from nanotechnology to micro homes and amateur traders they're all making a splash and demonstrating that size is actually relative when small is big that's

our topic today welcome to made want to get jones in berlin it's good to have you with us now back in grammar school i had a teacher who wasn't actually told he was a powerhouse he used to say i'm not small i'm concentrated his lessons were very intense and successful even i had excellent grades in mass and physics small and concentrated could also apply to nano particles they are found in lots of modern everyday products to make things water repellent for example but what do we actually know about those super tiny nano particles and their interplay with our lives mitty audition that reports. this is a song to lotion with particles. 1000 men on technology have to do with me. i once tried

a shoe polish containing nano particles it was supposed to make the polish absorb into the shubert said it didn't help much but it seems there is something new for me after all in the wonderful world of minuscule artificial particles. i have a broken molar which has to be replaced with a dental implant until now there was a risk for the bacteria would attack the implant and it would have to come out again but a nano coating of silver can protect against bacteria in the future. critical schneider from german company arias has developed a coating for dental implants. technical development takes a few years if it happens at all. and then there's the certification process to prove the whole thing is safe. that it often takes years at least a decade. because the hurdles are high. they want to avoid putting the

consumer at risk in any way and that's a big challenge for a small company like ours. the stringent demands are also slowing innovation. as you can see forced into us and whenever i contact the medical equipment makers 9 out of 10 of them say they don't want to pursue it because the regulations have become stricter or they have become too vague leaving no planning certainty. that none of the articles can also be found in many foods such as chewing gum and baking powder where they make the whites appear even brighter it's basically just a coloring effect. critics are worried about the use of tiny particles in food though. we know that certain nanomaterials cause inflammatory reactions in the gastrointestinal tract that's a precursor to cancer and the kind of thing we must prevent so why is it that something like that gets

a license when it can cause inflammatory reactions. the reasoning was there is a labeling requirement for nanomaterials in food but you won't see any foods labeled contains nano products that's because we're still arguing with the various industry associations about whether it still has to be declared as such because they say they haven't used it as a nanomaterial but there are always some nano components in the product itself. ok unless they go. through dangerous. nanotechnology is uncharted territory rich in potential. i would like it either but then not everything that's useful is also edible so that shouldn't be a criterion when deciding whether new technology is worthwhile and when it comes to nanotechnology there's still so much to explore in recent decades scientists and

engineers have learned to make and manipulate nano particles and nano structures and deploy them in products and processes the range of applications is enormous and expanding fast see for yourself. small smaller smallest nanotechnology. a human head has a diameter of 50000 nanometers one nanometer is just one of 50000 of the diameter of a hair. here's another way to visualize it one nanometer is to a meter what a hazelnut is to earth. nanostructures how fascinated scientists for decades now they're even able to make some of those structures themselves they can manipulate matter at the atomic and molecular level so that the matter takes on new properties. industry has discovered the virtues of

various nano particles many sunscreens now contain ones that block u.v. radiation. silicon nano particles are used in smart coatings that make fabrics water repellent that's a novel way to waterproof clothes and upholstery. super sticky glue tennis balls that keep their bounce and unbelievably tiny computer chips all thanks to nanotechnology. it's become big business sales of nanotechnology have been growing at an ever faster rate. one estimate put the global market value in 2020 at 63000000000 euros. the nano technology is said to revolutionize many sectors in the field of medicine research is intense and wide ranging. it's also contributing to environmental and climate protection. nano scientists even working on self healing materials imagine

a crack in an airplane wing that repairs itself with nano particles going where they're needed for now that still pie in the sky but perhaps for not much long. nanotechnology is really taking off. now severe lack of space has led to a shortage of fordable housing in many big cities try finding a flat in berlin a nightmare as a result some people are setting their sights on something smaller a tiny house unconventional lodgings are ready popular with holiday makers and 2018 air b.n. b. so a roughly 125 percent increase in world wide bookings over the previous year the figure for barnes was 110 percent and shepherd's huts came in at 93 percent plenty of people are also looking to downsize permanently so we met a successful tiny house builder in germany and an architect in hong kong says small homes are key to overcoming homelessness.

an eco is a product design and has built himself a house of his 3. ish lives in the tiny house i live in a tiny house. i used to build movies which is quite different. when i left the film industry and travel for a while everything i needed was in my backpack i went to a tiny house is a lot like that everything you need fits into one room and there are lots of places to start stuff away everything is multi-functional. she books for stefan. he started building tiny houses 5 years ago and now has one of the biggest manufacturers in germany. he builds 40 a year none of them larger than $25.00 square metres. and 1st saw them in canada. i spent some time there and

saw how they were building micro houses though they weren't mobile homes on wheels the idea really fascinated me. from. them a trend reach europe from north america we picked up on it relatively quickly and decided to build a prototype and see how it goes through bone off more important to almost. this starting price is 45000 euros for a house like this some customers want to live in this full time others just for holidays by the way you can't cram much stuff in here. many minutes many people have come to appreciate minimalism downsizing or lean living we know that because we see lots of people here who think that way. if. not if you're living in a small space is just one aspect of minimalism more generally it's about reducing your c o 2 footprint out i don't know i am part form to my minimalist most so choosing to

live in and 20 square metres rather than 60 square metres could be part of that is to for that me to avoid on behind so no further north tons of metal in hong kong for example 20 square me's his is quite stand it and still very expensive lots of people very close quarters they can't afford more space james lewis an architect based in hong kong has designed microphones in segments of concrete water pipes he calls them oh parts so i came up with the idea when on one day i was at my construction site and i saw some of these very large concrete water pipes being laid into the ground and i walks into one of them and they were big enough for me to go inside and suddenly i felt that this instant architecture this is like an instant shelter which with a bit of design and

a bit of creativity could be quickly made into a small house. he says these low cost units can help eradicate homelessness and ease the shortage of affordable housing $120.00 units are said to be built in hong kong this year more are to go up in canada lost says the world needs to rethink housing as the population source. homes will have to get smaller. the cities are so . so expensive to live in space is so tough to get and so many people are chasing after that space so that you know wait the architecture we build is no longer so affordable for people so maybe this idea will become necessary in some form in every urbanized area in the world because we realize that we cannot always just build iconic and expensive projects for

a symbol of our city we also need to really take care of people otherwise the people will be the. hunk congdon is only one of many cities where housing is very expensive and in short supply. stephan dyckman says the market for tiny houses is going to be here to. tell but if i thought i think people have become more flexible nowadays they're not so bound just staying in one place with a lot of computer. well that's another reason for choosing the train your house or to i'm about this for the entire house dyckman plans to open a tiny house hotel once the pandemic is over that is the pint sized units are ready to go each one is different. i think of it doesn't need to be convinced she's already a fan and says her tiny house gives her everything she needs. should be easy to keep clean moving on to the world of stock markets more and more amateur

investors are trying their luck these days and they're even sending some stock prices soaring but in this very risky business the stakes can be high here's my colleague to delay any with the lowdown on day trading. meaning heart of germany's financial industry the frankfurt stock exchange but it's a little more downbeat being stable trading has moved from stock exchange floors like these to our phones and laptops deals are done while waiting for a friend or for a coffee and by people like you and me even my mom's doing at amateur investors have flocked to stock markets like never before since the crown of iris endemic began well it has devastated many people's lives and jobs other people have found themselves with extra time and money during lockdowns and this record breaking rally we've seen in global markets has made many people already very rich. the s. and p. 500 in the u.s. was up 16 percent and 2020 but that's nothing compared to this day trader favor at

tesla more than 700 percent i've been covering stocks as a journalist for years but i'm ready to get off the sidelines and try my hand at being a pandemic do trader. step one to 2 cup form when a lot of people think about trading stocks their mind conjures up a scene like this. and while you still can trade stocks by calling up a broker trading has increasingly gone digital setting up an account as easy as downloading and now there are dozens of free or low fi options out there to choose from step 2 choose your stocks. hard day traders make hundreds of transactions every day others like me have day jobs and only so much time for writing market swings so i have to make my investments count. oliver wrote as

a trader here in frankfurt he says we should all be trading stocks because ultra low interest rates mean more traditional investments like stating his accounts no longer pay. there's no real turn the tooth to stock investment when you look at the interest rates they are so low it's not possible to save money on the account or somewhere else so this is just without in the term that if therefore even the private people the private investor retail investors very interested in stocks even in germany which is not very popular on the on the stock side today is the 1st day of my experiment as a pandemic day trader what and by step for me as a newbie from a professional like you. well 1st of all if you go to the stock exchange you have to be very disciplined that's very important because you need to think about where you want to invest why you want to invest and then you have to be disciplined by saying this is where i'm going the price is where i get in and where i

will get out should i buy it has left you shouldn't invest only intensely you can invest in tesla because i think there's a lot of things are going on but nevertheless you have to to to to spread to a risk to divide your risk on certain certain pillars and tesla could be one of them but also other stocks have to be in your portfolio which is very important ok so oliver says i shouldn't. all my eggs in one basket i'll be buying a mix of company stocks and exchange traded funds or e.t.f. which are seen as a bit safer because they include a variety of stocks since i'm a journalist who cover stocks out the investing in the simulation mode of my app which is a good way to try out your trading without putting your money on the line for all the aspiring investors out there step 3 know your timing ok so let's see how it did. i started out with 100 euros on day one i bought

georgia telecom amazon and an e.t.f. that tracks european banks the markets went against me and i ended in the rad. you want a little better thanks mostly to task which continued its relentless rally. after 2 days i ended down a little more than 2 year olds. but it could have been worse trading is very risky even the most experienced wise and investors often find themselves caught out by market swings some studies have shown that around 80 percent of day traders end up losing money and some of these new platforms have been accused of manipulating investors and under playing the risks of trading. knowing how to time markets when to buy when to sell is one of the hardest parts of investing many traders are eyeing this rally warily chilled by central banks tenuous markets climb higher and higher. really deeply concerned about the situation where were you home as long as

the central bearings are making the money so cheap. the longer the bubble can grow so i don't see i see a poll but i will see that the bubble explodes i see that the bubble we crow in grow and grow for certain time. absolutely i didn't strike it rich as a day trader but it was just a simulation after all and i'll be keeping my day job. good idea for making a windfall on the market too profiting from wind itself germany won 65 percent of its energy share to come from renewables by 2030 and that's a tall order given that over the last 10 years the shares of wind power in germany's energy production only rose 19 percent from 6 to about $25.00 it will take many more super sized wind turbines to hit the bigger target but as you put them we visit a winter under construction in northern germany. new

wind farms a cropping up across germany these technological marvels a taller than the world's highest church tower bigger is better and more powerful. germany's long term goal to become carbon neutral relies on harnessing the power of wind. down at the construction site workers are assembling towers segments the towers massive base is made out of solid concrete it's the only way to build that time i. began the 1st prototype in 2010 since then we've built and erected more than 2000 wind turbines we even built the world's tallest in 27 team with a hub height of 178 meters and blade tips that which more than 240 meters. 13 wind turbines are being built in the far west of the country newmans to the energy they'll deliver will be put to good use especially once germany's last coal powered

plant shuts down in 2038. but the expansion of wind energy is not going fast enough in many parts of the country says milan nitschke he's managing director of the company that operates this wind farm. this project is special from the start it's had strong support from the local authority the district and local people even the city's utility companies are involved so everything gets done much faster in places where citizens initiatives say not in my backyard it can take a lot longer. banners like this one sign of local resistance some people in the region complain that wind turbines are a blot on the landscape that's part of why it can take 10 years for a project to be approved. this village is home to an active citizens

initiative. awning is already annoyed that her house is surrounded by wind turbines . now they'll be joined by more less than a kilometer away from her farm 5. you can hear the wind turbines from a kilometer and a half away and you hear them turning and it's annoying. and if they're even closer when the sun comes out you'll be in the flickering shadow. but there are ways to get communities on board. had a good experience on this project he talked to locals before hand and offered them a share in the wind farms profits. this year my home is that's what they do is raise the capital for the project from local residents their sensually give us a loan and we give them back interest at a fixed rate that could be 5 percent maybe 6 percent that's quite

a lot compared to the interest rates banks offer nowadays the result of a bank to police their few. we asked the residents how they feel about the wind farm. i'm not bothered by it and i only see the turbines in the distance and. it doesn't bother me i think it's good because renewable energy has to come from somewhere. i do understand where the conservationists are coming from when they say it has a negative environmental impact so i work in a green job myself so i can relate. but it's good that we're working towards renewable energy and building goodbye to fossil fuels. you had us pay to is a farmer in the region he least one of his fields to the wind park he also bought shares in the company and will soon receive annual dividends acceptance for acceptance on the ground improves when local people are included. they get involved with

a project and say this is our project benefits us all. we may bring you a bill energy will also. benefit from the project once the wind turbines go into operation. well they have local contacts also helps boost public acceptance and understanding. all the older wind parks in germany were replaced with efficient ones like these the country could meet current needs but not for long germany's electricity needs might soon especially if electric vehicles replace gas and diesel powered ones. and building a wind farm like this is a major undertaking. the huge blades and most of the components arrive on heavy duty transporters.

the transporters are accompanied by escort vehicles the convoys top speed is 80 kilometers per hour navigating a. long around a corner is a tricky operation a crew of 12 make sure. this blade was built in poland traveled a 1000 kilometers already. the rotor blades have grown over the years that's always been the big challenge 1st we said we'll have to stop at 45 meters then we thought we'd have to stop at 15 meters and now we have blades that are over 80 meters long. the turbine blade is the technological masterpiece and engineers are working to get even more out of them they're also trying to make the turbines more environmentally friendly and less disruptive people and animals in

the vicinity. we call dinosaurs on the. slats that help reduce turbulence and reduce noise. to help protect the environment we have. which shut down. turbines when they register bats flying nearby on. shadow sensors so when the sun shines from a certain angle nearby buildings and houses aren't bothered by flickering shadows of the dark star they are. this blade is being mounted on to the tower today when the wind park is completed in a few months it will deliver green power to 40000 households. but new wind farms will only succeed if the people who live nearby give them the green light. here at least they found a recipe to make it work. and that's all for this man away edition of

made for me in the team thanks for watching. i am.

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were forced into an endless mass. their bodies your tools with. the history of the slave trade is africa's history. to destroy greed for power and profit plummeted and entire continent into chaos and violence. this is the journey back into the history of slavery. i think will truly be making progress when we all accept the history of slavery as all of our history. our documentary series slavery routes starts march 10th on g w. s

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move. this is g.w. news live from the us role spike coronavirus for strict chanst with one state even eyeing a return to gold with vaccinations gathering pace and infections down texas says it will lift all statewide cups next week if you think its last monday some tell thanks but i was right also coming out to thank us top triumph i suppose the january 6th attack on the capital domestic terrorism f.b.i. director christopher wright tell small vikas their prizes will be held.