and going to be a journey for 2000 years of history trivia. 30 minutes. is on its way to bring you more conservation. how do we make cities greener how can we protect habitat so we can make a difference to the ideas mental series a game global city on g.w. and online. you know. we're all consumers this shop till you drop the culture of originated in the industrial revolution by mass production and out goods to be manufactured in large quantities. product design emerged as a new discipline with goods adapted in accordance with the tastes of the era. but the results haven't always been attractive practical all safe there been some real

design designs does. welcome to tomorrow today the science program on d w. it's a well known fact that germans love their cars put decades they've been more than just a mode of transport their design has changed with the times to attract buying is by years who were nearly always men in this high octane world the needs of women are still often disregarded. the world we live in is one very much oriented toward men resulting in what is known as the gender data gap. ash tests use male dummies meaning the results are

biased. traffic accident experts show us the dummies usually deployed in such tests. this facility has just one female dummy and she is designed to sit on the passenger seat plus the figure has the dimensions of a 12 year old so has little in common with your typical real world woman. who really expected me to go all the average woman would be considerably taller and heavier. about 15 kilos heavier and 15 centimeters taller than the dummy we have here but all of mirth all the same in the real world vehicle occupants vary greatly in height and shape but the most commonly used dummy is an average science man one meter 77 tall and wing 80 kilos.

a new regulations do not yet stipulate including female dummies and crash tests to do shooting for our tickets there's no dummy representing the average woman. so crash tests are not representative. even though i was due to stick show that women have a higher risk of injury than men in an identical accident. previous research has shown that women are almost 50 percent more likely to suffer serious injury in a car crash. only a few tests are conducted with a female mini dummy which in europe is restricted to the passenger seat while a male dummy is that the real. but women have a 3 times higher risk of suffering whiplash than men. with all the good things you hear you can see the woman sits far further forward. she's a lot closer to the airbag and practically goes under it. whiplash occurs with

a far higher number of women. one factor are the neck muscles which are weaker than with men. and women are generally lighter. doesn't feel a lot of features designed to provide protection from rear end collisions do not take women into account. not taking women into account is sadly an all too familiar story. and the gender data gap is by no means limited to crash tests it comes up in practically all areas of life. in offices the standard temperature is secured to men which can be as much as 5 degrees celsius too low for women. in supermarkets the top shelves are often too high for women to reach. for restrooms because women sit to your any

and are perhaps more likely to have a child with them they tend to take longer. but for some reason women spill it it's are no bigger than those provided. for men leading to constant lines. a problem that professor alexander canuck and switzerland does not need statistics to be convinced of. it is that long no it's a real drag at the movies the ladies restrooms are always crowded during the break them on the men they can just pop in and out but we have to queue up for ages and might miss the start of the film. she takes us along on a little tour around town where the gender data gap is evident and all kinds of places. sidewalks that are far too narrow for strollers as mostly experienced by women while pedestrian lights are time for individual crossers. mang. you might have children with you who are

a bit slower. over a push chair. and if you're pregnant too you might need longer to make it across the street. though the timing they use the standard is based on men. enough and her team at the circular versity of applied sciences have created a simulation with virtual reality goggles the aim is to visualize what a city of tomorrow might look like a city better accommodated to women and their specific needs. the simulation shows a city of the. on the mobility front it's not cause the to dominant people. the monks in for the good old state. of virtual city more attuned to women statistics show that

a majority of pedestrians and users of public transport are women whether on their way to work shopping or doing the school run that's a factor that needs to be incorporated in future urban planning. this is then very thick for knowing how male dominated planning and development teams are in a different perspective would really help their working world. instead of cementing the gender data gap we're currently seeing we could be building cities for the future that would be fair for everyone from the nb or we're. the only craft about the. affair or world is something this man also wants to see. accident researcher marco is a member of a european union project that uses virtual models. never saw her kids we're trying to resolve this dilemma of manufacturers being

unable to cover all body sizes and female dummies. our solution is to take the whole thing into the virtual world and construct models there. those models are more bowed out. and in the process create an average woman for a car crash female models are now being computer generated for future virtual tests creating physical expensive tests the virtual equivalent is far cheaper also opening up new opportunities. i can adapt the model to have weaker muscles and a different weight or height to have the features of a woman. in the virtual world i can completely close the gap with dummies.

the ultimate aim is to improve safety for women on the road although as is so often the case it might take years for the new virtual test to translate into real progress for women. shows up in other fields as well. often tested mainly on. the fact that they could have a totally different effect on women. looked. personalized medications could offer a solution there are even efforts underway to prevent them. from nigeria wanted to know more about 3 d. printing. can 3 d. printers print everything the answer is almost everything shoes. icing even foot. and motorcycles are no problem for modern 3 d.

printers. they've been used in manufacturing for over 40 years. these ingenious to. ice is no longer need to print using plastic trouser. nowadays sand dough. aluminum and other metals are also relatively easy to form into new shapes. but how do these marvelous machines actually work. it's worth mentioning that not all 3 d. printers are the same. they operate in a variety of ways. but they're all based on the same principle and similar to classic printers instead of info molten materials or spray from a nozzle onto a base. the computer controlled nozzle follows a preprogramed 3 d. track to build up the object layer by layer. 3 d. printers are also used for medical purposes. for example they can be used to make

prosthetics which can be tailored to meet the needs of the individual user. 3 d. printer technology is still a long way from reaching maximum potential it's still very much in development. but it may not be long before the question which shoes should i wear to the opera to night can be answered by turning on your printer. did you know that modern 3 d. printers can produce entire houses. this is a printer building project in a village in southern germany. printing houses is still relatively new so it remains to be seen how robust they are and whether they could rival the likes of the medieval castle in our next report which has certainly stood the test of time.

where in southern germany in the very end alex to visit what's left of foreign firebag castle nick content. and quite a man's bag and. i won a rather unusual photo shoot here. they were the ones that only were going to use our drone to capture images of the castle to see whether it has anyone expects that could make it unstable and. fast they take a look around on foot the research is a making a close inspection of the masonry to see where it might pose a danger to visit has. now it's time for the drove to get to work its task is to shoot photos from all possible angles.

each individual photo is just a normal snapshot what makes the difference is the large number of images from so many different perspectives. and yet speak to the want to hear hear the drone is coming from one angle and now we're going to take the same point from a slightly different angle and where these 2 lines of sight intersect we can plot the point in space we don't just do that for one point but for millions of points that gives us a cloud of points that enables us to generate a 3 d. model into. the cloud of points can be used as the basis for a widely used calculation method the object is divided up into small segments like

a puzzle the properties of each one a calculated allowing conclusions to be made about the entire building but the munich research has have added another element that revolutionizes the price. yes. man and look you take aaron constructed around the object and then you have a much simpler structure which once again you can divide up into cubes and you just give each material point its corresponding property for example air was soft and stone is hard and with this simple trick you can easily depict very complex structures in fact after. the researches include the new domain they've created around the object in that calculations it's as if they packed it in a box they then calculate the transition from soft surroundings to the hog structure that defines the surface of the object and gives information about it stability. and they want to use the new method to

determine the stability of historical monuments and other objects of cultural significance like the statues displayed in munich to take museum. how stable of these historical works avant. when might they need to be restored. their researches have taken many photos of this statue. again they put it in his virtual packaging and then analyzed it stability the problems seen in red is in the area of the ankle. the research is aimed to coax a wealth of invisible information out of the images. of course you can simply look at the statue and try to see whether it's going to hold but we want to look inside it with me you know our aim is to discover more in the image that is

visible with the naked eye we can. change insights can be a big tourist draw. unstable arches or columns could pose a danger to the public. the researches have already analyzed the cistern of the eye or to club basilica in southern turkey back in the 1960 s. one of its columns broke and had to be replaced with a concrete one. the scientists followed the usual steps 1st the cloud of points then packaging it in a box this revealed lines of strain in the systems vaults. their analysis shows that the columns still stable but under considerable tension. the munich scientists new procedure can even be applied in the medical sector it's intended to help doctors diagnose problems because mechanical stress occurs in the

human body too in the area of the spine for example. so if i'm clear that's very good common skin i was are with this calculation and this stuff on coleman's back i can tell us exactly where forces are acting which are the vertebrae are under more strain. and if we can simulate therapies that might be possible to change them to ease the pressure on the particular spinal disc and relieve the patient's pain but we can't just tell by looking at the images we need these biomechanical calculations. here you can see how much strain is being put on each vertebra in the number vertebrae can be stabilized with screws to help. dangerous stresses can be identified before the operation. even fractures seen here in red can be calculated. in the meantime the scientists have assessed the data relating to the bavarian

castle are its walls stable or are they in danger of collapsing. the calculation show that this large opening in the masonry is stable. and they can sound the all clear here too the tower that looks like a hollow tooth is also safe. that just leaves the leaning wall. and i think there was concern that it might topple over but the research is show that the leaning wall of horn firebag is secure although only because it's made of stone the research is can simulate what might happen if it were made of another material if it were built with loam for example it would fall over.

the skin on the shoulder we've taken a very close look at this and there are a few points where you might think that its stability is in danger but the entire structure is solid because of the bone nevertheless it's interesting to analyze it would seize methods it's working on the ball i'm trying to get. the research is conclusion the ruin is stable no part is at risk of collapse. and the view from the hole in flyback castle is really stunning. it's not only buildings that need to be durable comparatively speaking our head is almost as strong this deal a single human hair can carry around 100 grams of weight that's due to the head structure. it's in a most layer contains the soft medusa which is surrounded by several layers of

twisted carrots and the same material that makes up our fingernails. finally the our security call has scaly cells that function like the bark of a tree head as well can keep us warm but it will look doesn't have to come from sheath. francisco studies textile technology and she's on a quest for sustainable fibers she's all too familiar with the lasting legacy of the fast fashion industry. that again it missed i prefer to not produce the plastic waste of tomorrow i'd rather produce textiles that customers appreciate and that don't need 300 years to break down. and that means avoiding the synthetic fibers that are key to fast fashion but some natural fibers like cashmere and gora and mohair are also taboo for their production involves clean t.j. animals and an enormous amount of resources. she then met on cut.

the berlin based fashion designer had an idea that might have sounded bizarre to most people but francisco was convinced right away. i was watching my mother come the hair of her too long haired dogs and something just clicked after that i decided right away that i wanted to use their software to make yarn and it worked. like a couple. only certain breeds of dogs like this summer yet have undercut beneath the top layer of hair it has to be come down to regularly when their coats change in the spring they shed huge amounts of hair from their undercoat the majority of which ends up in trash cans the 2 women now want to use this dog hair and pee people to collect it for them under no circumstances would they want to promote the idea of some kind of industrial farm. the textile engineer is

thrilled by the quality of the dog's hair. the plan is now to tap into a germany wide network of dog owners and breeders so that they can acquire the amount of hear they need. they found a spinning mill to transform the dog hair into yarn 1st the raw material has to be washed which is easier than with sheep's wool for example due to its lower fat content. what temperature do you use window for dogs 1242 degrees celsius status. as it's called is already being stocked in some shops mixed with other hand-made wools sales will tell the jew innovators how well dogs will might catch on. this is the new color dark brown it's from collie and black. madge isn't as much to tell the 1st people say what dog hair no way we tell them it's no different from sheep for

a lot of use of course they ask if it smells when it's wet that's all we say no it's not perfectly normal you can just give it what squid is perfectly normal it's good. so they buy it. but there's a long way to go from handmade wool by hobby knitters to a resource for the clothing industry. we've already spoken with companies but it's always important to keep contact to find out what customers need from us because we're developing the product. and hung them for some time and when they say ok come back to us once you can produce 15 tons well that's a big difference from supplying to hand knitters we're producing 200 or 400 kilograms is enough. whether the results from the laboratory college can be transferred to the industrial processes remains to be seen fortunately the duo are getting funds from development programs.

feedback from the 1st customers who've been processing the wool professionally is especially helpful one well known designer from the sustainable fashion seam is using dog hair for some of her new items. i've brought along samples of her new industrial yarn we're now able to spin it so fine that we can use it in industrial knitting machines. perhaps a great combination so it has a vitality that gives it a high quality and this goes with it wonderfully because it looks so elegant with the downy dog. on. what i was an early adopter of what i saw right away that it was a concept i'd like to use in my work because it's made from a material that would otherwise be thrown away it's also produced locally which is

just wonderful but the challenge in the beginning was that it shed a bit you either get used to that old and just don't wear black which is quite difficult for a designer to show to be done on the top. or there's the issue of how customers like it i made a sample that i wore for test purposes i'm really curious to see how people will respond to the idea of wearing. the yarn from dog hair would revolutionize the wool industry but it could raise more awareness of alternative and sustainable textiles. if your old one is red why are great bottom if you. do you have a science question you'd like us to answer. send it in. if we featured on this show you look at a little surprise from us as a thank you. come on just ask. the most

science stories check out our website d w dot com slash science or look for us on twitter. that's all for now thanks for joining us on tomorrow today we'll be back next week with more fascinating stories from the world of science and technology. until then by.

everyone wants to travel to the agency look at the picture ask city on the day in the very utmost. one to track this letter to this unesco world heritage site. privileged takes a look around to enjoy and marvel at the sights and going to be

a journey for 2000 years of history and tradition. coming up on. fresh. lively. you need. to call music can be much more than what many think. it's 21 minutes star says projects transcend musical boundaries. classical music like you've never experienced before. 28. 13. i was issued when i arrived here i slept with 6 people in a room. it was hard i was fair. i even got white hairs that.

learning the german language meant no not this gives me a little budget uniquely to entrap it's the same thing you want to do their story in the migrants are fighting and reliable information for migrants. it's about billions. it's about power. it's about the foundation of the new movie order of the new silk road. china wants to expand its influence with this trade. work also in europe conflicts are inevitable consequences unpredictable but in the end of what it ever since the chinese investor got involved here our situation has changed again before the door was privatized a work was much better and easier. china is promising its harbors for the rich.

but in europe there's a sharp warning whoever accept money from the new super powers will become dependent on it again is a bit of a shaky the chinese state has a lot of money at his disposal. and that's how he's expanding that asserting its status and position in the world to be physical by more than a few. china's gateway to europe starts feb 19th on d w. this is d.w. news and these are our top stories hundreds of protesters have clashed with police after the netherlands imposed its 1st national curfew since world war 2 protesters set fire to cars and damaged shops in amsterdam and i'm told and the demonstrations broke rules on public gatherings on social distancing and he's made more than 100

arrests. all star teams have sealed off a hospital in the german company.