template. 3 princes. dream of the arab world. there are full power and boundless ambition of the middle east into a grave crisis. the moslem princes of the gulf coast november 27th on t.w. . welcome to tomorrow today the science show on d w coming up. real meat grown in the lab could come to burgers do away with the need for mass livestock farming. the secret life of stuff that's what makes these celestial bodies shine. gas with unique

abilities how plasma helps wounds heal and could fight cancer too. the global population is growing and with it the demand for meat. but low scale livestock farming isn't ecologically sound. it not only requires a lot of land it also emits huge amounts of greenhouse gases. as a result vegetarianism is also on the increase worldwide lab grown meat has long been in development and could offer a climate friendly alternative. introducing the future of meat on the menu steak cake origami salami and children special straight out of the tube. no animals were harmed in the making of these carnivorous treats.

because this meat was grown in a lab. and these futuristic creations are only dummies they're on display at a museum in munich germany the focus is on food of the future. in vitro tissue is widely used in medicine scientists have cultured skin elopes and even heart valves in so-called bio reactors. so why not go a step further. and grow steak ench too it's actually pretty simple you extract a muscle stem cell from a living animal it's then cultured in a nutrient rich solution where it multiplies. the stem cells develop into muscle cells. which grow

together to form muscle fibers. the process takes a few weeks 20000 of them make up one burger. dutch pharmacologist mark post presented the 1st ever lab grown burger back in 2013 that burger cost around 250000 euros to develop testers consumed it at a public event their verdict was that it tasted like meat but it was a little on the dry side. 6 years later mark post continues to cultivate meat in his lab that must reach to university he's added fat cells to the recipe intended to make the lab grown meat tastes juicy or we haven't tasted it with the fat yet so we don't quite know what we imagine that the taste will improve and also the picture will improve have been more juicy than before the calculations show that it will end up with something like 1011 euro for amber. but that price would only be

possible if the lab grown meat is mass produced. so far the scientists output has been limited to what they can grow in the lab but in theory the implications could be huge a single muscle stem cell could be the source of enough meat to feed millions of people and all that without a single animal being on. zevi of oil is among a team of experts the german government has commissioned to conduct a matter and alice says of lab meat studies proponents of in vitro meat say the technique has the potential to make factory farming redundant thereby saving resources and protecting the environment but what does the research say is kind of if left on call it depends on the type of meat in vitro growth would reduce the number of animals that need to be found in the case of beef far less land would be needed for chicken and pork it would be less to the advantage it's far bigger for

beef the son bought it off or to same applies to harmful emissions. with east methane is a major problem that could be avoided. if cultured meat production really does take off this is how factories might look in the future. but 1st there is a problem that needs to be solved the nutrient solution in which the meat grows. up to now scientists have been using fetal bovines. it's extracted from pregnant cows at slaughterhouses. the substance comes from the blood of the foetus and distracted from its still beating heart it provides rich conditions for growth but there are ethical questions surrounding its use. we are using it as a reference. but we have replaced serum with plant based

substitutes we know what those proteins are in serum that. that are necessary for proliferation of the cells so we make the proteins ourselves some progress on the ethical front then but on the technological level there are still some major hurdles to be overcome so far the quantity of meat that can be grown is fairly limited. without blood vessels and connective tissue there's only so big you can get. so when it comes to lab grown meat we may have to trade the hardy stakes we know for this so when will the lab grown meat be market ready. about 2 and a half years in fibers what you always hear is 2 to 5 years people always say it'll be on the market in 2 to 5 years that's the number you hear today but it's also what they were saying 5 years ago in the technological obstacles associated with

mass producing in vitro me even though a lot of research has gone into it a still many. in 2 to 5 years or maybe a bit longer but someday the lab grown meat probably will end up on our dinner plate. now over to you we asked you on facebook what you think will be eating in the future. donna think scientists will come up with pills that contain enough vitamin c. nutrients for the human body then just a pill. design of hopes one day we'll have great taste of from my. friend jack is less optimistic he thinks we won't be able to tell what's real and what's fake because of all the biotech and all food he says that will result in even more

we have health problems and a shorter life span. the river predicts that our food will in future come from 3 d. printers. and isabel writes because of all the environmental damage the traditional sources of animal protein will no longer be feasible maybe we'll eat more insects instead. thanks for your comments. of pleasure at least most of us and fast food is as popular. but as one big disadvantage it typically to weight gain. obesity is on the rise in many parts of the world. at $24.00 countries over 30 percent of the population is now obese it's a problem that increases the risk of heart attacks and diabetes how about going on a diet. for go those nasty calories for

a few weeks and lose weight before you know it. but that's not all that happens when you go on a diet temptation is all around how does their psyche react. if that's what american researchers wanted to find out. first they determine the level of the hormone cortisol in more than 100 test subjects half the group was put on a diet the other half made up the control group after 3 weeks their cortisol levels were measured again the level since control group are almost the same but in the diet group cortisol levels have risen markedly by about 17 percent cortisol causes heart rate and blood pressure to rise it's the bodies primary stress hormone. but stress is not the only effect that dieting has on the psyche. in a supermarket hungry people reach for high calorie foods more often in order to

satisfy their cravings our actions are driven by desire and gratification these impulses are controlled by the ventral tegmental area the v t a which is part of the brain's reward system british scientists used m.r.i. scans to examine how hunger influences this area of the brain some of their test subjects were allowed to have breakfast others weren't then the scientists showed them various photos they wanted to see how the v.g.a. responded. the subjects brains hardly reacted to neutral pictures but they did respond to pictures of food in particular the brains of the hungry subjects reacted more strongly than those of the others. and they responded most strongly to images of fattening food. the biggest problem is that people trying to stick to their diets must constantly battle against their own hunger or appetite and that causes confusion. as was shown by studies in sweden

850 children and adolescents were questioned about their eating behavior and body awareness. adolescents who dieted frequently were less positive about their bodies. they were also significantly less able to recognise when their bodies were telling them that they were hungry or they'd eaten enough it's still not clear exactly how diets influence our body awareness but it's possible that the more often we diet the more likely we are to actually gain weight . what is red white right and if you. do you have a science question that you've always wanted oncet we're happy to help out you send it to us as a video text over smell if we answer it on the show we'll send you a little surprise as a thank you can i just ask. if you'll find us online at

d.f.w. dot com slash silence old get in touch on twitter or facebook. coal fired power plants generate electricity always the same amount of guaranteed steady supply but they also pollute the environment. the pounding generated here is much less of a burden on the environment but the sun and wind don't always shine and blow when that energy is needed. good good planning solve that problem. the way the danish baltic sea island of adam by 2025 it aims to be completely common you carol. right now we have an overproduction in the green energy from our winter bines but we also fully aware that our need

for electricity in the near future will be completely different than it is today so we need to prepare for this future very near future. 6 wind turbines currently generate more electricity than the island 6000 inhabitants need. one in 10 islanders has a financial share in the wind power system but they're not planning to build more in this beautiful setting but to upgrade them to make the most powerful. has been using solar power since the 1990 s. the energy collected is stored. it's heat in huge well insulated water basins when winter comes around they reheated with subsidized wood chips but it's not so easy to control elektra's steel production with renewables of course we have a lot of production when we have a lot of wind even though we have a lot of wind sometimes the wind turbines are stopped because there is. a lack of

capacity in the transmission grid so we stop wind turbines. and we maybe we could use this instead of stopping the wind turbines maybe you could use the electricity . better. in its bid to go carbon neutral and faces the classic problem of renewables sometimes there's too much wind and solar energy and sometimes too little. possible answers to the problem including a lab or storage systems like the water tanks on there do all the expansion of the grid with pylons crisscrossing europe. at the university of southern denmark professor graeme and his interdisciplinary team at the ceiling another strategy for their aim is to achieve decentralized energy management with smart solutions doesn't it's the goal of the project is to show that it can be done

here. i like to cite a nice example from the medieval times that people used to eat potatoes produced by local farmers. done nowadays locally produced energy should also be used locally. to relieve the strain on the big grid. the island is an ideal place for his project cop a d.m. the microcosmic systems develop the could be rolled out in mainland municipalities with closed loop energy production according to blame the aim is not just to improve the organization of energy production but also its consumption and its much given for have if for example i had wind forecast then they would also be integrated then you wouldn't charge up the vehicle at 6 pm when everyone else was doing it you would create some kind of timetable. these forecasts are pretty challenging but we believe that we're on the right path. and

one advantage in denmark and an editor in particular is that many people are environmentally aware the ferry brings plenty of people to be island who are traveling by car go by not just by car local businesses are doing mabbitt whiskey to still a mission and wants to ensure that his distillery and future microbrewery make the best use of the island's an energy supplies. our heating plants are programmed so that they operate during the night at 4 am when the electricity is available all energy consumption has to be scheduled to take place where no one else needs and the energy or. a combination of expertise planning and technology should help to harness the island's energy as efficiently as possible in the future. our sun is not only a source of sustainable power it also warms the earth

a prerequisite for life. but if we look at the entire milky way we find the sun isn't actually that special it's just one stone among many. without even delay and from the philippines sent us a question. what is a star. we can see up to 6000 stars with our naked eye they only appears that all dots since they're incredibly far away. in reality stars are gigantic celestial bodies made of hot balls of ionized gas in the interior of the star there's such high pressure and temperature that lightweight nuclei like hydrogen fused together to form heavier ones like helium. this nuclear fusion process generates light starlight one star isn't cosmic

terms right on our doorstep the sun it's the only star that we've been able to study in great detail. compared to the earth the sun may be gigantic but among stars it's classified as a dwarf. astronomers classify stars based on the spectral characteristics of the light they emit on a plot of their luminosity versus their color most stars appear in a continuous band known as the main sequence in the midst of it is our sun a fairly average star. the smallest stars are called red dwarfs. they use up their hydrogen so slowly that they're likely to continue burning for trillions of years our sun by contrast is expected to shine for just 12000000000 years. this nebula contains the heaviest star identified by astronomers

to date researchers are mystified by how it could accumulate so much mass this colossal star is 265 times as massive as the sun and 10000000 times brighter. once it's exhausted its nuclear fuel it may explode in a supernova while its core collapses to form a dense neutron star or even a black hole all the chemical elements of the jets during this process are the building blocks for everything all the planets and even life everything we're made of including the iron in our blood is the stuff of stars without the sun's light and heat the earth would be a dead planet it's our life giving star and it only looks like a tranquil celestial object satellite images reveal a sea the boiling sun that hurls clouds of electrically charged particles into

space. these solar flares also reach the earth at their most harmless they cause spectacular polar lights but solar storms can also pose a danger to sensitive technology and to organisms astronomers use giant telescopes to study the magnetic fields of faraway stars by analyzing the like the image the data help to answer questions about the conditions around the stars and determine whether they may be orbited by habitable planets just like the earth. still. are comprised primarily of extremely hot plasma plasma is often called the 4th state of matter because it's neither solid liquid nor a normal gas. but plasma isn't only found in space

it can also be produced and used here on earth to catch sheets of metal for example or to make this light shine and plasma can do a whole lot more. plows myrt is the term for a hot electrically charged gas with very unusual characteristics it occurs naturally in the sun like normally it's extremely hot but scientists have managed to generate what they call cold room temperature which are proving very useful in medicine. this is real life science fiction we're using plasma to treat patients with wounds that haven't healed for months or even years and it really works. in order to generate plasma all the physicists need is a bottle of argon gas wires and electrodes electricity and a container when the voltage is applied the neutral particles of the gas are

ionized in the electric field created in the container and there you have. got what is exactly the same gas it's a gas that conducts electricity thanks to charge carriers and i create these charge carries in a gas by applying a voltage. tests have shown that plasma is lethal to bacteria viruses and fungus killing them with impressive speed but it does not appear to harm human tissue or tall in fact plasma helps to speed up the healing process in other ways to. loss to stimulate soul growth so on the one hand i'm boosting cell growth while on the other reducing the bacterial infection so it kills off the bad and stimulates the good. at the grice file university hospital doctors and physicists are working together to study the different ways that patients can benefit from this therapy they've been

treating wounds both with and without plasma so they can compare the results they're also developing various plasters through which the plasma can flow to treat different sized wounds the teamwork is crucial if. we need the physicists because the equipment still has much more potential that can be utilized that's because the instruments don't yet have the right shape we're still discussing distances and surfaces. then you have the important aspect of whether it's working biologically in the direction that the doctors want for a particular condition if not do we need to make adjustments or do we need to change the composition of the plasma. the scientists are continuing to work on instruments for applying the plasma they're also testing various data compositions one of their goals is to develop a plasma and a scope for use inside the body as well. when treating fresh wounds they use

a cold plasma pen device on a daily basis. the hope that some curse of the anti microbial effect allows us to kill off bacteria and viruses for chronically infected wounds that's vital and we can also stimulate the micro circulation increasing blood supply to the smallest blood vessels. every 3 days they conduct a test they want to know to what extent the wound is still infected so far there have been no side effects observed from the treatment the test results show treating a wound with plasma every day for one minute reduces the presence of bacteria by 99 percent. killing off the bacteria allows the wounds to heal but that alone doesn't account for the considerable success of the treatment the scientists have discovered the plasma has 3 main effects firstly it kills bacteria. secondly it stimulates cell growth and thirdly it increases the supply of oxygen to

the tissue. the scientists are now also researching whether plasma could be used to treat cancer initial findings suggest it could kill off kinds of cells while at the same time to simulate in the growth of healthy cells the scientists made the discovery by accident. while we were treating larger wounds from a number of patients underneath the wounds that were tumor cells and then we suddenly realized the tumor cells were disappearing too. but research into potential cancer treatment is only in the early stages in dentistry meanwhile plasma is already widely used to sterilize the mouth for example before implants are fitted or to treat gum disease by using plasma and oxygen to reduce bacteria in the mouth. the medical applications of plasma already being taught in universities

with research ongoing it's likely that many more people will benefit in the future from the healing properties of plasma. that's all for today next time we're off to mozambique and the garden goes the national park where we'll join a young scientist to study some of the park's tiniest presidents. joined us for that on somare today till the end but by.

how long to. discover the bauhaus code what happens when design becomes the universal term for what we call life of visionaries of modernism developed a formula for timeless design. 100 years of about house our documentary

powerhouse world hard won the cold. d.w. . cutting through the noise. where i come from people are known for being tough but fair new york can be loud and people tell it like it it was but they call it the concrete jungle of the melting pot of the city that never sleeps it's this energy that makes it feel like old but amid the hustle it's important to listen and pay attention because it's not just the loudest voices who needs to be heard we all have a story to tell but i see it as my job as a journalist to go beyond the obvious now i'm basing europe and my work takes me around the world but my instincts remain the same to tell the important stories

behind the headlines what is the heart of the story why does it matter who live in paris but not to stay focused if you want. to cut through the noise to get to the truth of the finest sarah kelly and i wanted to double. segments of music and now be affectionate later but as affectionately as you can. the american gentleman in the middle of his election campaign in the year 2000 the documentary was filmed for russian television that is to turn the camera back on of course rooms the film secretly chronicled the power grab of the actually everything was precisely planned introduction. featuring a top supporting role. to the freedom of russia. and featuring a lead role like you've never seen before. the mere sight of marriage to the

ends justify the means. to teens witnesses starts december 13th. on g.w. . this is g.w. news coming to you live from berlin a 2nd death amid hong kong's turmoil a 70 year old street cleaner caught in clashes between pro-democracy activist and police will be in hong kong also coming up italy declares a state of emergency after catastrophic flooding in venice the highest tides in half a century the government says the floods are a blow to italy's hard. and unwelcome arrivals in berlin germany turkey says there

are german fighters for so-called islamic state the german cover.