there's a week you're going to tell me you're just moving the tree so horribly to your good news stream is getting going to boil, promises starts december 4th, this is day to weigh in news, and these are our top stories security forces and demonstrators have clashed in paris during protests against a proposed security bill that would restrict sharing images of police officers. the issue came into focus after footage emerged of police beating up and racially abusing a black man code and say the bill would allow official misconduct to go unchecked. iranian president, hassan rouhani is blaming israel for the assassination of

a top nuclear scientist is bound to avenge the killing of the sunday in an ambush near terror on rouhani is also pledging to press ahead with iran's controversial nuclear program. israel has denied any knowledge of the killing her ethiopia is claiming victory in its operations against rebel forces in the northern region. prime minister, i'll be off minutes as police will pursue leaders of the tikrit people's liberation front, which previously dominated ethiopia's ruling coalition. weeks of fighting has left nearly a 1000000, people displaced and a growing humanitarian crisis. and this is deja vu news from berlin. follow us on twitter and instagram at d. w. news or visit our website, w dot com. did you know that even these are being factory found?

but fortunately, there are alternatives and we look at the dilemma of automatic facial recognition. what's more important, public safety or personal privacy and is the world going from bad to worse? not really. but why is our brain so sensitive to bad news that coming up into tomorrow today, the science show on d. w. whether by smoke signals by pony express or with optical devices, people have always felt the need to communicate over long distances, pictures, and so often used to carry messages to far away places. with the invention of the telegraph, the goal began to be connected with electrical. soon everyone had the receiver

today information continues to flow at an ever faster rate. and it seems as though bad news travels fast. just how does that affect the way we react to the news? and what role does the media itself play? india, a record number of cases on sunday, described as nonstop bad news is the world really in such a thoroughly terrible state or country in the region. of course, the current coronavirus pandemic is indeed an extraordinary global crisis. but if you take a longer term view, you see there have been many positive trends. infant mortality has never been lower . and the number of people killed in natural disasters has been averaging

downwards and taught still, we often get the impression things are just getting worse and worse myself included . even though as a journalist, i don't just consume news, but i also help shape it. that why are we more sensitive to bad news? doesn't have something to do with the brain. i'm on my way to see a neuroscientist martin. she has researched precisely these questions. at him for me, the brain process is negative news faster, better and more intensively than positive or neutral news on to us. we also remember it better in terms of evolutionary biology and processing negative information better than positive information has been helpful because in the age of the saber check, tiger and woolly mammoth, missing a piece of bad news might well mean that's it for you. regarding how studies have shown that test subjects from different parts of the world became more excited and

as soon as they were shown, bad news, regardless of their looking shin and culture. many media outlets use this effect to their advantage. negative headlines sell more copies and get more clicks. studies show that the media are publishing more and more of that news, especially online. this isn't about how is it a problem if the media revel in bad news and ask for you 1st and foremost, it makes us all have negative expectations. so we go through life with the world view in which we assume the world is worse than it really is. left us i to say, yes, was the impact of media reports can be extremely strong. take the boston marathon bomb attack and 2013 for example. some people who followed the news obsessive for more stressed and frightened than others who had been physically

present. so what does this mean? as it was elsa's, my 1st of all, it makes people less likely to take action. you might think the realisation that we all have a worldview that's too negative, would actually prompt people to become more active. but many psychological studies have shown that that is precisely not the case. so i just, what's more, it can promote chronic stress. we know that chronic stress can be a factor in many diseases, including diabetes, cardiovascular disease, and mental illnesses such as depression. how can be depressed when you doubt, if you can trust the coronavirus pandemic is a good example. after months of bad news, many people have grown weary of the crisis. they feel helpless and wish things would go back to normal. it's just a journalist. i have to consider whether i might be contributing to other people

having a misguided view of the world. what can the media do better? and astrally, new kinds of journalists could ask themselves, what now, fast, in addition to the usual who, what, where, when, and why. and they could pursue the matter further. do more research and energy and focusing on what can we do about it? before it comes to us, of course it's still important to describe a problem that then go on to talk about possible solutions. ask people for their ideas, always keeping in mind the question. how can we solve the problem current, inspired by her research, modern on us perspective, daily, a constructive, online magazine, compliments news stories with ideas for solutions. but it's not just media outlets that could or should change. we can all do something good for ourselves. and our brain just comes from bittorrent and you don't have to reach for your phone or turn

on the t.v. or radio. as soon as you wake up, you don't have to consume information nonstop. we can be more discerning in our use of the media, helped our reflective talk. it is also a good idea to choose media that are trustworthy and present the news in a responsible and sober manner. as a piece of the sake of your brain and your well being accessed the news wisely. and you can also simply take a break from it all. take a break and just turn off for a while. sounds good, right? we asked you what you do to take your mind off too much bad news. robinson from columbia doesn't want to read or watch anymore bad needs. his way of keeping his mental health and tranquility is to try to be indifferent to it all. for rosie from costa rica burying your head in the sand like an ostrich is not an

option. she says it's better to face reality to be empathetic and help others and enjoy distract himself with nice things, watching series of films, reading books, but not too many newspapers and going outside for some fresh air to clear his head . leering your head. that's what these people are buying to do at the space of competition in south korea. as contestants work on zoning out this monitor and if it's too fast, just not shall enough noise from mexico sent in a quick about that. why are people lazy and doing nothing relaxing? taking it easy. one counts as lazy is hard to define, but historically,

people seen as lazy or frowned upon in europe, at least. his attitude stems from the protestant work ethic that took root in the 18th century. in the ancient world, in contrast, exertion was scorned. philosophizing was seen as a noble cross to be pursued at leisure, a perfect excuse to be lazy. in other words, extreme laziness can be harmful even to your health. but now and then it's good to kick back it gives us time to regenerate things. in fact, scientific research suggests that lazy people are more intelligent, they enjoy spending time longer skin force. other people get bored quickly and stimulation of activity. and

innovation has often been driven by a desire to avoid efforts to comrades who is the inventor of the world's 1st programmable computer. because by his own admission, he was too lazy for arithmetic. our ancestors didn't always feel like hunting and gathering. they would put it off until the next day and spend the time developing new tools and strategies instead. this improve their chances of survival . according to researchers, there's a genetic predisposition to procreate, so they shouldn't laziness. it's to do with a gene that helps regulate the production of dopamine, which it's a role in brain processes such as attention, memory and motivation. so a laziness seems to be an ace and not just in humans

because what is right, why are great, but only very few. if you have a science question that's been bothering you, send it in as a video. text oh voicemail. if you love it, if we answer it on the show, you'll get a little surprise as a thank you. come on, you just asked to find us on our website to tell you dot com slash science or look for us on twitter at d, w underscore site tech. many mobile phones already come equipped with cameras with built in face recognition and special recognition technology use, or if our team can help police identify criminals and so contribute to public safety you. but what about a surveillance camera with f, a r t that scans the faces in the shop, finds the associated profile on social media and sends out personalized ads.

that's not yet reality, but it's not far off. like so many things that just a short while ago, sounded like science fiction. you know, this is the year 2054 as envisioned in the movie minority report. and it's not a pleasant scene. tom cruise is on the run, but he gets recognized wherever he goes. the film dates from 2002, but the mass surveillance it conjured up is already a reality. in many places. china has hundreds of millions of surveillance cameras, many of them with facial recognition software. the state wants to know what its citizens are up to. and in germany at airports, faces this and compared with the biometric data stored in the passport chip to determine whether you are really using the technology was developed by the company tech company in dresden, germany. it's a major player in artificial intelligence powered facial recognition. its products

are used in automated check ins and border control systems, as well as video surveillance by security agencies. is often asked if the software 1st looks at fix points on the face of the distance between the eyes, the distance from the nose to the corners of the mouth. it's half the height and the features of the surface of the face, of the box and hollows when i was doing and got all the data together, the profile of each face, and it's with the help of such a digital profile. the software can distinguish whether the corresponding person is standing in front of the camera, or if it's just a photo. so it can't be tricked. it's smart and it's getting smarter. even if it only gets to see part of a face, it can work out if a person passport, but long together or not. by comparing what it seems to photos, it already has. it takes just

a few seconds to compasses, vaillant's camera footage, with vast databases. the accuracy is said to be high as and one of what 100 percent accuracy will never be attained. but in the industry, the advances of the past 5 years have been dubbed the facial recognition revolution . you can always because accuracy has improved so dramatically. the systems are now very, very reliable, and that's how reliable in 2017 tests with volunteers in violin yielded success rates of 70 to 80 percent depending on the software. that's good enough for also refused to consider installing such. so are we going to be at the mercy of the state as it deploys mass surveillance and imperfect facial recognition technology? i.t. experts in generalist marcus' of the dangers 15 percent put out always following

the problem is many people don't really want to think about these technological developments. and at the same time, surveillance tends to be relatively discreet. which is to say, we don't necessarily see what's going on this bus stop lawyer that's dangerous, because it will lead to ever more surveillance if it doesn't meet with any resistance in society. and that's not all. there's now emotion recognition and analysis to a software program that's able to deduce a person's emotional state based on their facial expressions. the feelings, the complex, and how that reflected in our expressions is not straightforward. either. scientists at the found wealth or institute in erlang and are using artificial intelligence to develop and improve such software. but do happy, sad, surprised, or angry faces look the same in all cultures. and for

various aspects of the face correspond to emotions, movements of facial muscles, happy, sad, angry, and so warm under understood. in most cultures what we humans see in facial expressions, we can teach software to see as well for the very, very high degree of accuracy. and is using photos of very clear facial expressions to help train the software. but what is the point of having it identify emotions at present? i didn't read all time. and the typical application for emotion recognition would be in the context of human machine interaction. we have one interesting project teaching a robot to help autistic children learn to interpret social signals and facial expressions. in

another area is cars. recognizing the state drivers are in whether they're distracted or feeling stressed? well, that sounds pretty homeless. these technologies could, however, also be used to monitor people to manipulate them. that's one reason why it's so important to understand the technology and its possible that implications, which also notice that we can only do that if we take control of it and the stop the short of calm and calm to postpone the next move. the team in atlanta and say that their emotion recognition system is not parent be used anyway in mass surveillance, but that could change facial recognition has already revolutionized massive aliens . marcus decade does says these technologies could transform our society conform. we are going to become more conformist and less free in our behavior

because in the back of our mind would always be worrying about being observed. so smile, casey tried to use these voters against us, is this is already happening in china. that when voice, i hope we never end up in a state i got here in germany. so i should invade, leaving vatten. china has already developed a vast surveillance infrastructure and uses it to monitor each individual. the aim is to maintain control. reality has caught up with hollywood, even if he wasn't famous, tom cruise would have a hard time including detection today in the real world. let's stay in china for a moment where another dystopic vision of the future has already become reality. in

some regions, fruit trees have to be pollinated by hand because there are hardly any bees left economies that being devastated by diseases and crowding them in hives like this. they make them more vulnerable to these naturalists. look quite different moses martin ross and antonio actual run a project called the embassy and they are to be ambassadors. their mission is to create natural style homes for wild honey bees. out in the woods. here they're installing one of their log hyams. it's a hollowed out section of a tree trunk. honey bees, natural habitat is in woodland, just wild honey bees. out in the woods, look for cavities and trees. they're often created by woodpeckers are for naturally, what we've done is create an artificial tree trunk. it's the perfect home,

the bees look for. he might avoid all beenish out. they want to find out if there are any wild beast in these woods. and if they will take a liking to the new home they're being offered. naturally occurring tree cavities are becoming ever rarer in managed commercial forests. trees with holes don't last long. they've attached their log hives 6 metres up the trunk of an oak tree. they say bees like the round shape and feel safe up there. and we have learnt to see with the eyes of a bee, this is not about honey or any other product, this trip. it's about having resilient be resistant vina to show off. and that means honey bees that can fight off parasites and diseases. an alarming number of managed colonies die prematurely girlie actually became a beekeeper in 2012,

but soon became dissatisfied with standard modern methods. he learned about honey hunting, a practice common in the middle ages that involved making nests by cutting holes in tree trunks. he decided to adopt and update the technique. he found that bees did much better in such nests than in standard artificial hives. the question is, why standard box hives have been in use for a century and a half. they can be stacked, and the at habitants of each one yield up to 50 kilograms of honey. but other bees happy. another experiment is underway in the botanical garden in frankfurt. train hives have been installed here too, and they're equipped with a range of sensors. actual and rollers are collaborating with top in shifa, a biologist, and the expert. he's found that these round wooden hives offer bees

a stable and pleasant climate. by contrast, the temperature in box nests varies a lot, and moisture can accumulate in the corners of the park. and they have a legal design been for in a box a colony has to work 20000000 hours more just to maintain the right temperature. or if we average it out, because there are 3 times as many bees in a hive as in the nest, that still 7000000 hours extra work in a time in which they can do what bees naturally do. and i mean, you know, if they're always carrying nectar and fermenting honey, they can't get on with grooming. and that's a lot of extra stress for being. and it's not good for them. another problem shit for has identified is that box hives are too big, often 4 or more times the value of a natural treat asked. so keep adding honey superhits, so the top levels never fall and that makes the bees slave to their strongest instinct stocking up to ensure food security that

weakens down and makes them more susceptible to parasites and disease. many beekeepers lose a 3rd of their colonies each winter. so how are the bees doing in this tree hive? regular check ups are part of the experiment i found of a row of mice in vero mites. are the biggest parasitic threat to honey bees. this is what give it, its shell has been bitten. and sure enough, a look under the microscope confirms the bees evidently fight back and into the viral mite. you don't see that kind of behavior in box hives. to be a cousin of these can defend themselves. they need time spare capacity to do so, but if they're always in a panic about maintaining supplies, they can't fight off the mites. in the tree hives the bees share their home with a natural ally, the house pseudo scorpion torben schiffer is

a great fan. one of these tiny scorpions have long maintained, a symbiotic relationship would be they eat everything that can harm the beings, but don't hurt the bees themselves. it's a micro ecosystem that has been eradicated in conventional beekeeping. complex shiver says beekeepers should welcome how pseudo scorpions into their hives. all in all these live better lives in nests or log hives until you also makes log hives that are suited to hopping beekeeping. the bottom section is home to various tiny creatures such as the household pseudo scorpion. the middle section is where the bees they're honeycomb and store their honey. and the upper story can serve the beekeeper as a honey super, where some extra honey for humans to harvest accumulates. there are new frames inside the bees build their homes as they see fit. the drawer lets you check for

very well might say the door provides access so that you can harvest between up to 7 or 8 kilos of honey a year, but no more. and this is i'm with you and it's about keeping bees in a way that's good. for them and not about honey, still in, the beekeeper can look forward to harvesting a little without harming the bees, you know, through to being in the theory that to want to scale up production of what they called natural habitat ties back to the log hive in the forests more than 2 months had passed. have wild honey bees moved in and made themselves comfortable as is my goodness, they have built a huge money. and they are the colony. it turns out is made up of different species of be expanding. the gene pool can also enhance the resilience and adaptability of

future generations. this is an endorsement of our work. it also confirms the hypothesis that bees came from the forests and want to go back there again in full blood bar, log onto a further argument in favor of keeping bees in a way that's good for them. and i'd give it to be now to die. as to, if you become beautiful here, bees can be they built everything by themselves, no input from atsic. if commercial beekeeping switched to these methods, there would be lots of happy being. but we'd likely have to pay more for our honey that's all for this week. join us again next time on tomorrow today for more from the world of science. so then stay healthy and stay curious.

when food becomes scarce, climate change has put traditional agriculture under massive pressure. all over the world, researchers are searching for solutions. can high tech farms help secure our future next on d, w,

the fastest bed in the world drives 110 kilometers an hour when he needs it. but it's a lot of fun, says its inventor and builder and child should remember, it gets things moving that shouldn't actually move at all and holds various codes with his funding the 60 4 what's the secret behind his classical music? the 2nd. as soon as you hear beethoven lose your mind, or the story behind the music was born in ages. british

law, beethoven's 9th symphony for the world starts to simmer down on the d.w. . is this what the future of agriculture looks like? vegetables and lettuce has stocked on several floors artificially led, fully automated farming, detached from trout prost and straw. and this isn't a futuristic question in japan, this is already the reality for a large in this system, we can produce food and not optimal conditions with high nutritional.