and that is your news update at this hour don't forget you can always get the latest news and information around the clock on our web site at some g.w. dot com course also follow us on social media at d w news and care richardson in berlin for me in the entire team here in berlin thanks so much for watching. where i come from we have to fight for a free press that was born and raised in a military dictatorship with just one t.v. shadow and a few newspapers with official information as a journalist i have worked at all of the strengths of many counters and their problems are always the same or do social inequality a lack of the freedom of the press. go up should work on the floor to stay silent when it comes to the fans of the humans and see the why through foals who have

decided to put their trust in us. my name is jim curtis and i work a d.w.i. . the devil is in the detail as each different mouth poor over the cracks a trade agreement we look at what is and isn't in the deal time clock will change for businesses to jump 3 1st. also coming up when the going gets tough the tough get going how a german state has is carving out a new journey locked up and. this is the deal the business i'm kate ferguson thanks for joining me the deal is done now. it's time to examine the details e.u.

chief negotiator michele carney has been briefing member states on the backs of pact it's expected to get unanimous backing meanwhile british prime minister barak johnson has been selling the deal to his country as well t w m d harman reports. in a christmas message british prime minister boris johnson was upbeat about the 1200 page deal which he prays is good for the whole of europe and a present for britain this is a deal a deal to give certainty to business travelers and all investors in our country from the 1st of january a deal with our friends and partners in the e.u. you remember the up and ready deal by which we came out on january 31st that. was just the start of the 1st is the feast for the fish by the way in brussels fastrack ratification of the agreement got underway on friday as

ambassadors from the blocks 27 nations were briefed about the details of the treaty the deal goes into effect on january 1st britain will leave the european single market and customs union but both sides will still have tariff free access to each other's markets the 2 sides also found agreement on what they call a level playing field by agreeing to adhere to similar regulations on workers' rights the environment and state subsidies in order to protect the e.u. single market from dumping but citizens of britain and the e.u. will no longer have the right to live and work on the territory of the other. the u.n. ambassadors are set to meet again on monday to assess the accord that takes effect in a week a vote on the provisional application on the european council is expected in the coming days british m.p.'s are set to debate the deal on wednesday but there is no doubt they will prove it. and talk more about this deal with all the hop ahead of

the german british chamber of industry and commerce in london welcome mr hopper tell me what can businesses expect from january 1st business can expect that there will be formalities to be dealt with at the borders so even if we have it to you we just avoid it and so on but the formalities will still have to be complied with so trade across the channel will become more difficult and also if we look at services calls for the services that will be difficult as well in terms of a lot of people doing work in the u.k. it's coming in to the u.k. to do this work that will no longer be possible event it's because of. the freedom of movement has fallen by the wayside now if it is no longer tied to the european court of justice who and how will this will train to be resolved in the future.

yeah sort of did it do for a mechanism to sort of disputes between the e.u. and the u.k. so on individual level you still. a set of rules and a set of laws which will apply so i think for the individual companies it doesn't change that much that depends on that contract but i think we all german or french or not but i think overall the framework of the even this dispute settle reckon this will be different to the european court of justice who it will be 5050 and then there will be some kind of other neutral institution and neutral sat up so to deal with any disputes which might arise out of these overall individual companies it is still a matter to what kind of role that house agree to in their contract now one thing that isn't part of this deal of course and 3rd offense has significant is that. that is very significant if we look at financial services 7 percent if you keiki

e.p. which will face severe restrictions in terms of accessing the e.u. market and that was in a way a compromise to actually grow a point one percent of g.d.p. which is fish so i think for the financial services sector in the u.k. that is still a big blow and of course they have to adjust and that will come at some cost to the u.k. economy and u.k. economic growth and finally what's your president take on this deal in the government. it is a good point in the circumstances because britain opted for some vanity so they wanted to be more free and more independent and not be lead to the e.u. their biggest market 50 percent of the trade goes through the e.u. a lot was a political decision based on the referendum so the deal is the best outcome in the circumstances and will to some extent minimize disruption but there will be disruption on the 1st subject in any case they happen from the german british

chamber of industry and congress thank you very much my pleasure thank you. time now for a quick look at some of the other business stories making news the fishing industry has had a mixed response to the bracks a deal french special man and women are pleased to tell still be able to fish in fresh water is despite helping to reduce their cocks in germany the sector will likely need government support almost all the herring the country cuts as in the north sea originates in precious waters just fisherman aren't thrilled at all they say they're losing fishing grants rights potions. area is set to receive deliveries of natural gas from azerbaijan from january 1st underneath reman between cars on the outer brake johny company so car 1000000000 cubic meters of gaza will be deliberate on uli by next october the gospel be connected to the greek pipeline system. the food and drinks industry has been one of the worst affected during the

pandemic here in germany a study found that some 20 percent of restaurants are at risk of going under in our next report will miss a steakhouse owner whose business was devastations during the country's for us lockdown but since then he's managed to find spock by carving out an entirely new nice. there's nothing like a juicy beef steak with grilled vegetables chef yoshi jobs and his son pamper their guests right where they live so he prepares the food outside in the customer's yard in freezing december temperatures. to have imagined it would be so popular that's nice but it's always a real challenge every customer is different they have individual wishes and you can see how cold and windy because. they used to take care of their guests here a small restaurant located at berlin city limits outside there are enough seating

for 80 and inside 50 more just 10 months ago yobs employed more than. 20 staff at his steak house but the restaurant didn't even survive the 1st wave of the coronavirus. we had to declare bankruptcy and close the restaurants for food we had very high overhead the monthly rental alone was 15000 euros then of course we have to pay your electric bills we ran a very high quality steakhouse. fares were cancelled vacationers stayed away not even the local berlin customers were there to get them through lockdown and then yaps had an idea corona compliant cooking life at the customer's home today they're catering a birthday party. that's in the cabins from tied off why it's really looking forward to it and now it's almost ready it's a nice event at home during the pandemic if you don't get out much then. so

this is just great and so. looking forward to this all day. the smell of the cooking food is like a calling card and it's attracting some interested neighbors to potential customers for the cooking duo. to be different i think is a great idea especially viz days when restaurants are suffering so much it's really sad that berlin's color in variety are fading so rapidly. the wind is forcing them to improvise right now instead of heated plates the food is being served on heated platters a measure to help prevented getting cold sweet potato soup beef steaks chicken and even salmon something for everyone the family's happy and it takes them excellent to my perfect present was delicious. it was very very yummy seasoned perfectly and beautifully presented they take all the pots and pans with them so

there's nothing to clean up the perfect aspect. the kid cost. the family around $250.00 euros this father son team might not be striking it rich but at least they'll survive the coronavirus financially. and finally while many around the world are enjoying a well earned break on christmas day others are continuing to toil among the hard workers is colonel the dog along with his owner nicholas while toddles he's been spending the festive period taking passengers around the colombian capital bogota the pair met 6 years ago and while tara found them us on the street since then the canine human business partnership has thrived this year not even the pandemic how stop them from spreading christmas cheer while helping people get from a to b. . and

a reminder of the top story this hour a e.u. diplomats are examining the details of the bracks a deal which includes agreements on a level playing field on trade dispute resolution and fishing rights the pact will have to pass through both the british and i think european parliament. from the far show for more you can visit our web site at d w dot com slash business or on social media as well from me on the team it's good bye and take it.

the but. it's an ancient dream to build a pecial motion machine in scotland that dream might soon become reality scientists that are working on an unmanned aerial vehicle that can move forward without an engine. that could be used as a satellite for telecommunications. but how on earth does it work. next. time it's been

in the sun struck. down upon i conducted the best musicians she. could to make maintain. there's a. constant. exclusive on arcs to. the limits. closely. carefully. don't see. this to be a good. match.

discover them in. the game. substract you don't need documentary to. global energy consumption rises every year many people's biological rhythms are no longer in sync with day and night but more with artificial light what does that mean for us our energy demands are also depleting natural resources renewable energies could help more if they were more efficient one idea is to use lenses to focus on light more precisely on the solar cells in the panel. her welcome to tomorrow today the science show on the d w. stuff

how do solar cells actually work so hisself are mainly composed of silicone. silicon atoms have full electrons in their outer shell and are stable but then the silicone is split into 2 layers. bosphorus is mixed into one like it has value electrons and its outer shell one too many which can or would free. the 2nd layer is mixed with boron which has only 3 out electrons one to feel. that means the layer has gaps which attract the excess phosphorus electrons this creates a flow of negatively charged electrons from one layer to the other one layer loses electrons and becomes positive the other gains electrons and becomes negative creating 2 poles eventually all the gaps on the surface of the layers are occupied

the whole and the electrons are now too far apart to migrate dance with the sun comes in when sunlight hits. surface splits off one electron making a hole under so. the electron is attracted to the positive and the hole goes another electron from another down to replace the one which in turn is split off inside. the electrons which of the right at the positive pole return by want it to the negative pole that's an electric current. and it flows as long as the sun shines. if solar energy is to enable commercial aviation and satisfy our electricity needs in the future and there's still a lot of work to be done. research is forging ahead. florian gallies has come up with

a new method of extracting even more power from sunlight. but. what we've done instead of using normal silicon solar cells which have a maximum laboratory efficiency of 26 to 27 percent is to use somewhat more exotic cells their maximum lab efficiency is over 47 percent but they're expensive and above his expensive solar super cells a panel of lenses each of which focuses sunlight on an individual cell throughout the day that 2 sufficiency to 29 percent in real life conditions. the main challenge is making sure the light actually hits the cell if it doesn't it won't produce any energy at all. and then it's you know. we get an idea of how it works he uses a model to show how the lenses function each lens in the top panel focuses the sunlight on an exactly defined radius covering

a super cell. because those cells are tiny barely one millimeter across. we use about $10000.00 sales per square meter and each has to have a high degree of tolerance. but now it's time for the engineers to put the lab behind them. in the eye right now we're still almost sticking everything together by hand with the theory but now the important step is going from the lab to mass production how can i produce a module every couple of minutes using machinery that's the really huge leap we're about to take that will start in the us mafia. the european union is giving insulate almost 3000000 euros from its advent solar cell fund expensive science but worth it. including installation ourselves are about 20 percent more expensive but they produce 50 percent more energy and. improved utilization of solar energy is

one thing but it's also highly dependent on the weather it only makes sense when electricity storage facilities have been improved. lithium ion batteries are the standard today but scientists at switzerland's materials testing and research institute show us how dangerous they can be if the lithium ion cells insulation is compromised and the terminals come into contact with metallic objects such as coins the result can be disastrous. our approach to stabilizing the electrolytes involves a highly concentrated salt solution. the swiss researchers have developed a highly soluble salt that only needs a few drops of water here seen in fast motion to function as

a more conductive but much safer electrolyte in lithium ion batteries. that kind of storage battery would be enormously useful for storing solar energy in people cellars or in other very large batteries. to bridge the nighttime gap as well as bad weather. batteries are the ideal solution for delaying energy consumption for a few minutes or even day in. solar energy for foggy days or the night time in future we could be storing it in less volatile batteries and we have today. it's energy that could become abundantly available thanks to a new generation of panels to collect it. ideally we wouldn't use any energy at all that's the idea behind the ancient dream the cultural motion machine that moves without any energy. but the laws of physics

teach us that it's not possible i can't eat everything up and simply hope for that self. if i use energy i have to replace it on the other hand. with that in. my to. phoenix looks like. but it's actually an airplane or to be precise and unmanned aerial vehicle. the prototype the wings and tail will be added shortly we joined the team amid preparations for the 1st test flight. the researchers have chosen a huge building for their 1st attempt to get phoenix into the air a tense moment for its inventors. scientists from various universities and companies in britain spent 3 years working on phoenix. aerodynamics professor andrew rank hands up the team. says.

the goal was to build an aircraft that could propel itself without the need for an engine. has been around for a long time i've 150 years and it's used underwater for remotely operated vehicles so there are various things called drive is used underwater for surviving but nobody's made it work in a before because there is a 1000 times less dense in water that the the physical process is more complicated phoenix is filled with helium the material for the outer hull had to be developed specially it needed to be lightweight but dense enough to prevent the tiny helium molecules from seeping through. the wings are made of lightweight carbon fiber both the wings and tail carry solar panels to provide the plane with power some is stored in batteries meaning phoenix can also fly at night. this is phoenix in its

fully assembled stage and the aircraft will likely be used as an atmospheric satellite or pseudo satellite either for telecommunications or for things like land surveillance after natural disasters to see where help is most needed one of the possibilities is as a suit our satellites are being able to do surveillance and monitoring and for that it would fly at 20000 meters and 20000 meters because that's where the weather is is most benign. a much lower than the surface phoenix's 15 meters long and weighs just $120.00 kilos without the helium. that means it requires very little power. it's a huge advantage is that because it has no engine it doesn't need to carry any fuel that means it can remain airborne for weeks or months at a time. the mix is also relatively cheap to manufacture. it's propelled by what's

known as variable buoyancy propulsion this is how it works. and is lighter than air and therefore pulls the aircraft up towards the underside is equipped with 2 compressors which draw in air from outside and compress it feeling a bag inside the aircraft. that makes the plane heavier causing it to sink again. the air is then pumped out making the aircraft lighter and causing it to rise again this ability to believe as it were moving up and down combines with the lift generated on its wings to move it forward. half the time phoenix is heavier than air like an airplane. the other half it's lighter than air like a balloon. the model has been through countless tests in wind tunnels.

andrew ray is responsible for the aerodynamics and element he's keen to improve further tests. using lasers and smoke his team is able to show how the air flows around the model. they needed to establish the most efficient design to allow the aircraft to maximize the use of its kinetic energy. here. after 3 years of development the prototype was ready for its 1st test flight. and it was a success phoenix flew in waves down the 120 metre long hangar exactly as it was designed to do.

we were all pleasantly surprised that it worked as well as it did. we initially had hoped to. do one series of tests where was like the narran one had to navigate through so well to begin with that we were able to do multiple transitions between the 2 when it flew forward repeatedly during the flight systems. work is now underway to build the next prototype it's said to be 4 times as a miss phoenix and capable of flying at the target altitude of 20000 meters. the earth by night covered by a right of tiny luminous dots could be beautiful in another context electric light does make modern life possible independent from the 24 hour day night rhythm would have freedom but also what a catastrophe it confuses the environment and least spend too much time in us official ice and also nothing essential sunlight time for an experiment.

these 3 people are exposed to different levels of light during their day. boss john works in an office which means spending long hours in artificial light. so much as a goat herd it is mostly outdoors. when there is not to be. a doctor who works as a surgeon in a hospital and she works at night when her body is telling her it's dark and time to go to bed. we equip our test subjects with a special device that measures the brightness and composition of the light they're exposed to. and then we track them around the clock for a week. we want to know how much and what type of light our test subjects are

exposed to and when. sleep researcher alfred riata and light expert because it analyze the results. what will they show how much like to our subjects received at what time of day. tomas the go to tends to be out in the open with natural light the lord even in gloomy weather he's subject to several 1000 locks per day. after sundown he manages without a television or mobile phone which both emit a lot of blue light and are disruptive. this shows the amount of natural light thomas is exposed to over the course of several days in the. mall going on site there's a very high a luminance in the morning and around noon up to $7000.00 lux dollars and looks on

and in the afternoon it drops significantly. around $100.00 lux or lowered looks on immediately. and at night the light exposure is reduced to an absolute minimum of absolute minimum that would see it is in accordance with the natural daja night rhythm effect the stock knocked over at most and pushed. case there to take place almost exclusively indoors despite having large windows he always turns on the light but artificial light is usually very weak whereas cotard thomas can reach 7000 lux bus jones level is just 220 bus general so spends most of his evenings in front of a t.v. or computer screen in addition to being low light the emit primarily blue light this lowers the wake sleep regulating hormone melatonin and reverses his inner rhythm essentially turning back his biological clock and the result for us john is

this modest hour by hour exposure to light on a typical working day then cut in but while working in the office we have 200 to $220.00 blocks which is far short of daylight vite and found that. what we notice is that he still has a relatively high illuminance after working until he goes to bed and people who are . at this so and that he definitely has a negative effect on his sleep wake behavior. and he got the 5. now deemed as a doctor who likewise works with little light most of it artificial. and sometimes with practically none. and. i'm just arrived for a night shift saturday night which no one likes to go see but i'm not properly rested even after. commission. but she needs to be

wide awake not least when stitching up a wound at 1 am. the surgery room light is particularly strong which helps right now but for her biological clock it's unnatural outside of course it's dark. and she's lucky and it's a quiet night nadine will be able to take a break and catch up on her sleep. but it's only a matter of time until she's called to the next patient which means getting up again pronto. the rude enough to. even though my night shift is over and my colleague is now taking over for the daytime shift and which just by i'm could feel that you can't really look forward to going home when you know you'll be back again this evening when it was. and this is what her light exposure chart looks like. come

on for the 1st 3 days you can see a relatively good day night rythm after that her night shifts begin. and then there's no daylight rhythm at all as far as light exposure is concerned the least exposed it's. there and she's more or less exposed to continuous lighting. and that constant light is anything but natural. her biological clock has no means of orientation. in order to reset her clock back to normal she needs daylight in the morning between 8 and noon a time of day where our 3 subjects differ substantially in exposure. look blue line shows the light on a typical morning for office worker boss john read is that of dr 19 and greene goatherder tomas whose exposure is 10 times higher in those crucial morning hours. so help you know office worker and doctor get more like.

we'll have the solution for you in a moment but 1st of all we are asked how much you have to rely an artificial light and if you have strategies for avoiding too much of it. brown says they don't have too much artificial light in nigeria so they don't really depend on it. rising from columbia most have tells us it really makes us sad that life pollution means she can't see the greatest show on earth the milky way it's like a cascade of diamonds sparkling in the sky. and doctor tells us that pakistan's rule areas have barely any artificial light at night the people there are healthier than city people they're also very strong emotionally they stay calm worry letters and mostly smile thanks for writing in.

even if in some regions night time still looks like night time the world as a whole has been getting brighter recently. many professions are rescheduling work to happen overnight some only work at night but how can you stay healthy despite that. that daylight experiment. tomas spends most of his days outdoors so he gets plenty of natural light in the evenings he tends to avoid screens with their blue spectrum output he's just fine but bass john's office job means he has a serious light deficit problem and not just because his office is too dark. an office worker circadian rhythms are completely disrupted and we should try to adjust his biological clock. so he'll be more capable and alert in the morning and

the highest for boss john that means 1st thing in the morning it's out into the fresh air and natural g. light not exactly a grueling task skipping one stop on the subway into work is all it takes. to install a standard daylight lamp on his desk for him to use during the morning that way he's getting 2000 lux even in the office. and in the evening a book is always better than a screen. measurements show just how even a smartphone can influence our sleep patterns normal display light is dominated by the blue spectrum that suppresses melatonin the hormone that steers our weak sleep rhythm however many smartphones now feature a filter called night shift it cuts down the blue spectrum component sharply damage come on all it lets you use your smartphone and i need an equal amount

feeling guilty about disrupting your sleep the stuff they start out. but others do this is the time the system will stop with the daylight lamp and walking in broad daylight i've got a feeling that i get tired very much earlier at night and want to go to sleep. on stuff given it gets on my nerves a bit because i like to stay up late. you know. what i don't feel like i'm struggling to get through the day like i used to before this whole experiment publishing issue would be just treated as it should instead i'm quite often much more alert the. hospital doctrinaire dean really gets much daylight and her night shifts go counter to her biological clock adrenalin is what keeps her we markedly awake at work. to feel she's doing a lot right she's limited by her night shifts of course what is important is that she at least grabs whatever sleep she can when on shift. the sleep experts offer

her another suggestion after a night shift should try specially colored glasses which filter out that studies are melatonin level and she'll sleep easier when she gets home the experiments outcome is that the most important thing is to get a lot of natural daylight preferably in the morning that way the biological clock settles into its natural rhythm and also to try to go without screens in the evening and if night chips are a must then only a few of them at a time grouped together a well maintained biological clock never needs reminding. so some lies is best that much we know it also helps us to produce this mundane essential for both development and also said to boost the immune system but getting the right amount of sunlight is important too much u.v. nice is unhealthy the will of long ago adapted to the sun's 24 hour over them it's

regulated human life for thousands of years but how did it come about amos from zambia wanted to know. how was the sun created. it's been burning away for over 4 and a half 1000000000 years and is not even high. through its projected life span. one in which human history is just a blink of an eye. but while we may be just a transitory moment in cosmic terms we are at least able to study the life cycle of the sun. our galaxy is home to billions of other stars like it. space telescopes have given astronomers a closer look at how stars evolve. our own son was born from

a cloud of gas and dust over the course of millions of years. it's a magical process reproduced here on a computer. this cloud of dust contains regions of dense a gas like pearls on necklace. the astral embryos that emerge there continue growing until they have sufficient mass to ignite the sun spire. if outlet is red why of it but even if it. does you have a science question that you've always wanted on state we're happy to help out send it to us as a video text ovoid smell if we answer it on the show we'll send you a little surprise as a thank you cannot just ask. to find us on the web at t.w. dot com slash science or check us out on twitter. that's

all from tamara today for this week the next time we'll be looking at the color of thought we'll be able to operate just by thinking the 1st models being tested more on that next week see them. i am. female. female. familiar.

with. the below and. any time it's the slate's job done upon i conducted the best musicians she. could to make maine to keep. it in the future. constantly exclusive on our try to at. least get it.

out to the marlins but xmas keep sounds completely to. start jonas called things had. to be the dream of a bad dream. max where would the mass on the w. the new year mean our yes yes we've done you and how last year's german sunflower will bring you i'm going to mount guard as you've never had have before to surprise yourself what is possible who is magical really what moves back and what also who talk to people who follows her along the way admirers and critics alike how is the

world's most powerful woman shaping her legacy joining us from eccles last stop. the story of prejudice and propaganda. they were called the rhineland bastards born after the 1st world war the monkey was an illegitimate child there were many of them even from. their mothers or germans living in the occupied rhineland their fathers soldiers from the french colonies. aflatoxin please africa gentleman children had a hard time and because they were reminder of the german defeat. they grew up in a climate of national pride and racism to further the european population felt that it was important to be white and to stay right by supply. exclusion and

contempt culminated in forced sterilization under the nazis. this documentary examines the few traces that remain of their existence we call them the children. of storage january 11th on d w. i was imagining what would be an orchestra to have an orchestra have the world's 1st soloist. and. it's a corner project obviously it would have never happened if it wasn't for the situation. below i think you have to learn to adapt to any situation and that's why.