tv Kick off Deutsche Welle May 10, 2022 1:30pm-2:01pm CEST
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to mr. lucas ah . many success stories, ration of biodiversity stores between d, w. a. flying high on hydrogen will alternative fuels replacing kerosene, make any growth better for the environment. could mosque spitted with intelligent technology help whereas to breathe more easily. just what's the best way to stay balanced, less and more coming up on the dw signs program. kind of and welcome to to morrow to day.
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finding your balance can be tricky even when you're not on a tightrope. more to the right or to the left. dean for width of backwards finding your way through the world and staying upright requires the interaction of different senses. our next report is all about how the sense of balance works. that is, when it does work our sense of balance is extremely complex. it's not limited to a single organ. our eyes are responsible for visually processing our environment. they perceive our spatial position optically down and angles. even more essential is the vestibular system of the inner ear 3 semi circular canal signal our spatial orientation to the brain,
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as well as information about gravity. and the speed at which our head is moving. our vestibular system and our eyes constantly coordinate with each other. the 3rd thing we need to keep our balance is information from our muscles, sensory organs in the local moderate apparatus, send messages to the brain about the position of our head and body. a stable sense of balance occurs when all of the sensors interact perfectly. pro prior exception or kin us dcea constantly informs us about the location of our limbs and space. thanks to this perception, we're able to touch the tip of our nose while our eyes are closed. but a bumble, it enables us to walk and climb over obstacles without being aware of every single step we take. for this self perception, pro prior sceptre is in the body,
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constantly signal information to the brain about our current position and space. the receptor signals travel via the spinal cord to the cerebellum and the motor cortex. the brain then must constantly decide how the body should change its position and space in order to maintain equilibrium. during any given movement. it sends the relevant signals back to the limbs. mm. and if our body is caught off guard, such as when we stumble, these signals will mainly be answered in the spinal cord via reflexes. which are triggered without going by the brain. ah, the sense of balance can be improved. standing on one leg oh, practicing standing scale exercises can train us to keep our balance more easily.
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we need our sense of balance will survival, for example, to react quickly and stressful situations. and training, the sense of balance is not only good for the body. it's also good for the mind. sebastian ladiva is interested in the complex relationship between our sense of balance and other aspects of the body. the focus of his research is how balance can boost mental abilities when mind and body are trained at the same time. he's conducting a study and has chosen judo as the training method to say about new doors and says order to be a special thing about judo, is that we have to control our own balance while at the same time trying to throw the opponent off balance was formed and we're trying to anticipate what the opponent will do is appearing with laughter. it's
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a purely cognitive component on when we put it all together, we have a very complex training exercise. so it's a synergy of balance in cognitive processes. also informed from copeland even a potential the researcher split 44 children into 2 groups. one half did judo training for 2 hours a week for 3 months. the control group continued their normal sporting activities. then in the laboratory, sebastian modica studied the effects of the training on the subjects mental performance with as quickly as possible, the child had to touch the button that corresponded to the color surrounding the shape on the screen. press really fast. the researcher measured both the error rate and brain activity and initial results
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are in the same results as i'm does, it really does seem that balance. can play a major role when it comes to cognition. it does when i and that is especially significant when these exercises are carried out with children. with deficiencies and motor skills, or cognition such as children with 80 h, d, would often dockins or they buy shoes wiser. they are the ones who make the most progress towards it. i'm kind of how thought you could almost say that exercise can have a normalizing effect and then sat beside. so children with a lower cognitive starting point who go through balanced training can benefit more from it. and bring themselves in line with the average is staggered off on call for the young ones is an indication of the anglican the study clearly showed the children who practiced balance and cognition training simultaneously as they do in judo make significantly faster progress. the combination intensifies the
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effect her of, of elk, some code from him. any other particular effectiveness of the training comes from the overlap of the structures that are responsible for cognition and for skills like balance in the slice. curious, do they involve similar structures or performed you got involved? yes. and so when we practice complex training, like we create new connections and the brain that we wouldn't get from training both aspects separately when miss. but it's a complex training method that we can use in everyday life, and we really can use it to improve cognitive functions or as a whole sprinkler. so what about all the children who prefer gaming to balanced training? sports like judo. for a startup has developed a special game for them. oh hello, he had flatter ye to some i've got your tracking devices here. how the children can control the interact of games using sensors on their wrists. it's time to head into
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the cube. initiator on a mati needecken wants to engage the kids by appealing to one of their strongest urges of iron from the lunch. i guess i should be at the instinct to play is lurking inside all of us. you put the sky and there's so much potential there in terms of giving people access to physical activity. that simple, playful, an unfunded. good it, right? you too. now for the 10 minute workouts, walk out in this game, the children have to touch colored dance and avoid obstacles. at the same time. it requires perception, movement, and balance simultaneously. lucy, it's exhausting, but i thought it was very cool and exciting. others, he shall say of blankets so distracting, all this stuff around. you know, you really have to focus on the exercises and the movements you have to do to give them a homeless. it's that combination of balance and cognition that the designers wanted
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to achieve. and says, hey, audi is elisha money call to the they have to precisely identify audio visual stimuli and react to them. their own balance plays a huge and important role in reacting to the right point at the right time in the game is almost florida. and it's only when the body and mind are in harmony balanced that you're really capable of performing these dual tasking exercises lie . so i'll host on it. so what influence does this specially designed fitness game have on cognition? after the game psychologist, sophia anson ada runs a test on the children to find out you might have thought and of medic, some kinds we do a talented to measure selective attention. that's the extent to which the child can focus on one signal and june out the other surrounding distracting signal, little mouth blend and come. and what did the data show to bond and
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that their attention was better off the games with their responses were faster and more accurate. doctor, whether its judo or gaming, training, body, and mind at the same time has big potential left. all right, a very small minority of people can use both hands equally, but usually one is stronger. yesenia cannon is from puerto rico, had a question about that. why is being left handed so rare? from your feet to your ears? your body is a study in any symmetries. for instance, 40 percent of us are left ears here better with their left ear was the one those
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people usually use in phone calls suggesting it's dominant. 30 percent of us a left died. well, 20 percent of us are left for today, but just one in 10 people a left handed. so for most of us, the fall m on the right hand side is the dominant one that's more than in any other animal. from an evolutionary perspective, specializing with one hand appears to be beneficial. chimpanzees, for example, also tend to choose a favorite hand for different tasks. so when in humanities, evolutionary history did this, one in 10 ratio emerge. ancient neanderthal teeth provide a clue. they reveal that are close evolutionary, relative square, all so largely right hands it. we believe that when eating meat, neanderthals would hold it taught with their teeth while using their dominant hands to slice it with a knife. but sometimes they would accidentally scratch the teeth and those
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scratches show which and was holding the knife over the years, researches have come up with lots of theories for why there are so few left handers . but there's still no clear scientific explanation. evidence indicates that genes play a role, even in the womb, a fetus shows a preference for either the left hand or the right. one. study show that before bus around one in 10 prefer sucking their left thumb. and most of that group goes on to become left handed children. research has pinpointed around 40 spokes in the dna that are associated with being a left hander. but scientists have still only begun to understand the complex biology behind this basic traits. ah, if i was what is read, why i gave you? do you have a science question?
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send it to us by video, text or voice message. if we answer it on the show, we'll give you a little surprise as a thank you. come on. just ask, ah, and for more from the world of science visit our website or join us on twitter. we from scary to city during the mosque mandate of the pandemic. lots of people found humorous ways to protect themselves and others from the virus. ah, the most effective arises, are, of course, the medical mosques, but wearing them for, oh, is, can be stifling. now, since the pandemic outbreak and early 2020 masks have become an indispensable ally
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in preventing the spread of coven 19. but in spite of the evidence in favor of them in reducing community transmission, people have to wear a mask for hours on end. agree that it's not always easy. i won are better sundays, especially at the start of the pandemic love. if i had a headache and felt drowsy with our lord, i mean con southfield since you can breathe as well. if you're working all day, you may get more tired than usual. i will die on wednesday. the c o 2 concentration between a person's face and an f. f p to mask is higher than usual because the air that's exhaled gets trapped. inhaling this carbon dioxide chemley to health effects such as headache or fatigue. whether you will am i cutty, dab with i, which would be important? i read the mosque for a long time in its busy i get tired and my nose and throat get dry on by thing. and then i go fee and i go to, i have to run to the kitchen, drink water, breathe
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a bit, and get back to work a lot by there to help mask wearers avoid these issues. a multi disciplinary research team made up of engineers and chemical scientists from the university of granada has developed an intelligent mask that alerts wearers on their smartphones . when recommended c o 2 limits are exceeded. lemme for him to leave him. they're going see intelligent, masked as a sensor, meaning a way to measure something in the air between your face and the mask. twitter introduce gotta la guardia. and so the c o 2 sensor is equipped with the electronics that will measure the color change in the sensor or, and transmit that information to a smartphone. and this ensure equal to put on me delinquent mouth, you know, telephone all molly. so a standard f, f, p to mask can be turned into an intelligent mask that monitors gas concentration by placing a special electronic sticker inside the mask. let me get that getting blue is that occur inserted inside the mask is
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a system that consists of 2 parts. on one side there's what's called readout electronics, which is printed with conductive ink on a flexible, plastic, and transparent substrate to receive. as you can see, i think with the apartment they almost have whatever he put up on the other side is the chemical part of the sensor that changes its color. he mean, depending on the c o 2 concentration con lagwen timothy and idiocy though they got one to notify users if they've reached the recommended c o 2 limits inside the mask . the research team has designed a special mobile app a new shoe audio cuppa. the user has a mobile app to read the carbon dioxide concentration. if on a moby kong didn't allow here with in a c, technology is the same technology used for wireless. claimant's implement users would simply have to hold their smartphone close to the mask. jamante gum in there, it automatically detects this sticker is hefland, reads the seal to concentration inside the mask, and adding video. the software alerts users to a traffic light, display red or green. if they need to ventilate and the on on. if the saudi rented
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out of her, although mask mandates have been lifted in many countries, many workers are still required to wear them so that researchers believe there is a demand. the team is willing to transfer the technology to any industry that may be interested in it. ah, masks had been part of everyday life. since the pandemic began. we wanted to know what it's like for you. have you got used to it? and in places where masts are no longer mandatory, do you ever still wear one? marked up notes and writes, i live in costa rica and always wear moss. even if you don't have to any more, i will continue to wear one because it makes me feel safe. oh garcia hernandez, feel similarly. she's got so used to it that she'd feel uncomfortable not wearing one doll gotta take is not so keen on masks, likening them to a muscle. tatty from indonesia writes, i were
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a mosque when i leave the house. i also were mosque when i was out before the pandemic, especially in public, where there are lots of people jesus bore guards, on the other hand, has never used a mosque. she lives in sweden where it was never mandatory. thanks for your comments. annex records is about flying level air traffic has been on the rise for years in 2019, they were more than 45000000 flights worldwide. even during the pandemic, they were more than $20000000.00 on the more flights, the more carbon dioxide emissions fueled on kerosene, the airplane is a climate killer. quit desperately need to find out her native
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this is the future of air travel as envisaged by aircraft manufacturer, air bus. from turbo props to jets. the aircraft of the future will be powered by synthetic fuel. that's more or less climate new. oh, by hydrogen stored in tanks next to the passengers. scientists from the german aerospace center have partnered with rolls royce to research sustainable aviation fuels. and such fuels are produced incessantly making them more environmentally friendly than kerosene, which is derived from the fossil fuel crude oil reform is arnoldo. ah, the scientists use a gas chromatograph to establish the precise chemical composition of the synthetic
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fuels. they're finding show that they're chemically similar to kerosene, but they're produced differently using a range of sustainable feedstock, slight bio mass, or green hydrogen. that makes them almost climate neutral. and in general, more environmentally friendly with less nitrogen oxides and no sit on the left. is kerosene on the right? the synthetic fuel? ooh, the kerosene gives off city smoke. the synthetic fuel doesn't synthetic fuels, could make air travel, almost carbon free by 2050 and ambitious targets,
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but not unrealistic history in the next insane dog. in the next 10 years. what we could replace about 20 percent of the few was used in germany, asian fuel and also vehicle fuel. i guess it's an ambitious target, but it's viable by the short, by 2040. we could manage to replace twice. maybe even 3 times that amount is it's possible that by 2050 will be able to replace the fuel was derived to day from crude oil. with synthetic fuels be at biofuels, or e fuels a test flight powered by sustainable fuel. is it really as emissions free as the research is? hey, they follow the test flight in its vapor trail, measuring error souls, water vapor, and trace gases. the synthetic fuels are indeed just as environmentally friendly as they were in the lab. but they come at a price,
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they're twice as expensive as standard kerosene. just ripped out from ticket price . that will add several euro's to the cost of short hall flights and perhaps several $100.00 euros for long hall flight school. i was just noticing fucked life, but of course it's only a fraction of the total ticket price because the aircraft has to be paid for a pilot. and so it's only part of the cost which are doubled. this is done for children. what about hydrogen powered plains? how promising of a does pure hydrogen make a good kerosene substitute? the gas is put to the test the research is measured the burning process. the
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focus a burner with numerous nozzles powered by hydrogen. the hydrogen flame is colorless . the orange color comes from the water the scientist one to find out how stable the flames are. for example, hydrogen burns. so quickly and easily that there's a risk, the flame could damage the burner. not this time. the flames and the burning process proved stable, unsafe. in a 2nd step, the research is simulate conditions during a flight. this chamber has a pressure of 30 to 50 bar. the research is focused here is not on the burner, but on the flame. a laser measures flane's speed. in the last 80 years,
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researches have only ever studied liquid fuels. there's little research on the potential of gas, hydrogen as a kerosene substitute is still a distant prospect. as it is, i know of us it. don't forget your hydrogen use an aircraft will play a smaller role, but 2050. think i know in the single digit percentage range been, i'm still because it'll still be many years until the 1st aircraft are developed and come to market and take advantage of them. it will be years before the fleets are time out of diflucan, congress took them on the invite, the effect, the common other factor is that hydrogen can be used mainly from medium range. why this is becca 2 or 3000 kilometers maximum to my friend at van con, and they're only a small percentage of all total flying sites. they get some fluke by 2050 flying could be almost emissions free. thanks to synthetic fuels on long whole flights and hydrogen powered short ones.
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it long whole flights. those traveling a distance of more than 4000 kilometers were responsible for more than half of c. o 2 emissions in 2020, worldwide. good. yet in europe, long, whole flights accounted for only around 6 percent of flies. as long as there's kerosene in the tank, long whole flight will remain the biggest the sin against the climate co short whole slides. this model could inspire the future of aircraft, powered by hydrogen fuel cell technology. no noise, no particles, no c o 2. the dream of emissions free flying could take off.
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store to know which spook intimidation and transformed into an orgy of hate and violence. the history of the ku klux klan, the oldest terrorist organization in the united states. it's members fight for a racist state, wrote by white supremacy. what we're talking about here is not only disorganized violence, it's not only terrorism. it's politics. found it over 150 years ago. it's repeatedly died out, but always been resurrected. the ku klux klan starts may 11th on
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d. w. ah ah, this is the w news live from berlin. germany is foreign minister on a mission to repair ties with keith on a line. a bad bulk is a new crime that like the sign of japanese strengthening support promises to help you crane and bring the russian war criminals to justice. also on the program, the son of a dictator is likely to become the philippines next president, ferdinand marco's junior, appears to have was a landslide victory. but the daughter of the outgoing cod line lena at leda as the vice president. and what is about what they when might made for the countries democracy.
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