i see a sure i see this all right i love you sure. but how would the world sell without the biggest composer of all time i can't even begin to imagine a world class war and player center willis on a musical journey of discovery. world without beethoven starts september 16th oh and b.t.w. . i. this is news and these are our top stories u.s. president donald trump is disputing reports he disparaged american war did various news outlets quote him as calling them losers all suckers the atlantic magazine broke the story trump has called the report fake and says he's done more for the american military than almost anyone else. hundreds of

migrants have been transferred onto a ferry to relieve overcrowding on the italian island island of lampedusa they'll be in covert quarantine for at least 14 days reception center on the island with space for 300 had been packed with over 1000 migrants. risk you is in the lebanese capital beirut say there is no longer any sign of life in a collapsed building in support hopes had risen off the senses registered a pulse under the rubble from last month's massive explosion emergency services will double check there is no one left to live. this is d w news from berlin follow us on twitter and instagram d w news or visit our website at w dot com. org

. more than 80 percent of our oceans remain on mat unobserved and unexplored but. we know more about the surface of the moon. and even mouse. yet we're busy polluting our scenes on the coronavirus pandemic has led to a new kind of waste. that the watery depths conceal an arsenal of by active compounds packed with pharmaceutical potential. researchers are studying the ream bacteria in the hope of finding new antibiotics. welcome to tomorrow today this week with a special focus on the ocean. lab. bacteria are found all around us they reproduce by splitting into occasionally random

genetic mutations occur during this process this can make some bacteria more resistant. the mutated bacteria die off but sometimes the mutation protects the bacterial cell from the effects of antibiotics for example. the antibiotic kills the bacteria without the me taishan while the others thrive. the antibiotic resistant bacteria can then go on to reproduce with less competition and form a whole new colony. this is evolution by natural selection but it's calls by human intervention. as it arctic resistant bacteria can rapidly establish themselves and hospitals the concentration is particularly high. that. fanning is another source of antibiotic resistant bacteria. they can spread by the sewage system and

ultimately harm our health it's a vicious circle but perhaps the ocean could help a solution. that could be a treasure trove of unimagined which is lying here in the depths hiding within marines. microbiologist un pierre and his team from e.t.h. ceric gather samples for analysis back in the lab at the university. the confirmation hearing you know that many kinds of sponge are jam packed with bacteria. that they can make up as much as half of a sponges weight hundreds of different species of microorganisms all living together in close proximity. doesn't this is a gold mine of bioactive substances. but why is that so interesting and important in the search for new and more effective antibiotics

because wherever lots of bacteria are competing for space and nutrition antibacterial agents are present. soil for example is teeming with bacteria and fungus and they're all fighting each other it's war in there. and microorganisms smart they're basically specialized chemicals factories. they produce and deploy antibiotics to destroy their enemy. the aim is to sort them and find ones that could be useful to us. so different microorganisms 1st identify it and then culture it in the lab. harmful bacteria that make us sick cultured separately on blast plates they replicate in formats across the surface samples of the microorganisms and then

deposited on the bacterial cultures if an empty spot forms that means an antibacterial agent in a sample has killed the bacteria around it the bald patch is known as the zone of inhibit ssion this is a way to identify candidates for further research to see if they could lead to new drugs. most antibiotics known today do indeed hail from the soil it's readily accessible but has not yielded much that's new or exciting for decades. sponges have not yet been so start really researched they're the new frontier they could be harboring powerful agents ones to which bacteria that make us sick have not developed any resistance the team won't reveal which species of sponge of the most . promising for now but it's a closely guarded secret the research is want to be sure of their findings before and now seeing any breakthrough. what we've discovered has

prompted a lot of excitement in the lab. to find a new antibiotic that's effective against multi resistant bacteria is the holy grail because they're so very hard to get rid of we're feeling pretty optimistic right now that a new drug can be found because of that. but the work is extremely challenging the bacteria from the sponges a very delicate the team have managed to identify and study them for the 1st time using a new method they invented that's a major step in its own right. identifying an antibacterial agent in nature is one thing that turning it into a reliable drug is a process also fraught with difficulties and there's no guarantee of success. it's a very slow and arduous process that takes about a decade and it's also very expensive. should be ill and his team find a holy grail any resulting new drug would probably not immediately go into mass

production and be widely used. if it is indeed effective against the deadliest of multi resistant bacteria it would probably 1st join the exclusive club of last resort agents and being used sparingly if a child. it's a pharmaceutical treasure trove. valuable by active substances are contained in sponges and molluscs and coral reefs which could help us combat viruses or cancer for example. but we are already destroying those valuable resources before we even get to grasp their potential. in. the south coast of maine york or. just with the on attack marine science and geo a gathering plastic in the mediterranean in order to collect data.

sophie who go it's the captain of the research vessel. as a dozen sandman this is what's called a month or 2 on and it was given to us by an organization called 5 giant its own native 3000 miles of trails for use by scientists around the world of. the structure is inspired by them and to ray a species found in sub tropical and tropical oceans. we filter the water for 30 minutes what we're looking for a micro plastics is. the net works exactly like a man to read a filter feeders. so what we catch is what u.s. feed all. those. rays feed on so plankton which they channel into their mouth but these days that's not all the 40 odd species of ray that inhabit these waters consume you. cluster

cluster x. that fits into this box on micro plastics smaller than 5 millimeter anything big and this just in the plastics we make that distinction when we collect data. past it particles like these will clog up the oceans for hundreds of years before disintegrating fully. the world. marine animals feed on them with deadly consequences. just as i can see it's a fact other the 3rd or even a heart of these creatures consume is plastic plus some $500000.00 tons of micro plastics waste and it's up in the mediterranean every year that's the equivalent of 34000 plastic bottles every minute the worst polluters a turkey italy and egypt primarily due to tourism.

and average $39000.00 plastic particles and now a drift per square kilometer of the mediterranean. breaks down more and more until it's micro plastic then the rain animals feed on it and it enters the food chain. scientists are currently researching whether nano plastics end up in fish and therefore in the food we eat. studies have shown that almost 75 percent of fish in the atlantic have ingested plastic. plastics are also detrimental to the ocean itself. 2 kilometers off the coast there researches have discovered ghost net fishing nets that have been left or lost in the ocean by fishermen. these accounts for about

a 3rd of the plastic in the mediterranean. but what they found today of fishing nets that are probably used by fisherman who are truly desperate. as a dozen guys this is about the trial goes from it that we found this summer. they like to come from north africa it's a traditional way of fishing they cast the net and just wait to see what they catch a lot of them about it's very bad for turtles mainly because they tend to just swim straight into a net. bacteria. and then before they know it and figure out which up in all the rope and let them there that's. nearly $400.00 types of marine animals have been found in nets like these once

a sea turtle for example has got course in one it's almost impossible for it to free itself and it dies a painful death at least 100000 marine mammals and more than a 1000000 marine birds die in these nets in year. this turtle got lucky their research has managed to free it but before these animals natural habitats can once again be safe and the world's oceans freed of plastic waste humans need to massively reduced their reliance on plastics. what is it takes so long for plastic to biodegrade in many cases hundreds of years . for example polypropylene is made up of propylene molecules the polymer has a long backbone of carbon atoms that form very strong bonds these chemical structures don't occur in nature so microorganisms come frank them down effectively . but plastic has conquered al. plastic

bottles are made from petroleum they are light practical and can be found pretty much everywhere. globally a 1000000 are sold every single minute of the day if they were placed end to end the plastic bottles sold in 2016 would form a chain stretching all the way to the planet mercury but we don't need to go to mercury so you've bought a drink in a plastic bottle and finished it what happens next in an ideal scenario it will be re-used some can be refilled up to 15 times if there washed properly most aren't that sturdy though. many end up in a shredder where the ground up into flakes of plastic. these can be used to make products like fleece clothing very nice except for the fact that every time the fleece has washed it releases plastic particles into the water. what about the

rest of the plastic bottles they get thrown away or dropped right in the street or somewhere out in nature a significant portion of them land in dumps or are eventually carried out to sea. between 5 and 13000000 tons of plastic garbage end up in the ocean every year a huge problem because plastics can take up to 450 years to decompose. if plastic trash doesn't get caught in propellers on ships or isn't washed up on the beach in the floating pieces grow smaller and smaller as they drift with the currents algae grows on their services and that draws fish and sea birds they think the particles are food and swallow them when too much collects in their stomachs real food no longer passes through and they starve. and if those fish end up in our nets they enter our food supply directly either as fresh or can see food do we want to eat that no we don't because it certainly isn't healthy some.

sir do we actually need plastic bottles the short unclear answer is no there are many alternatives and best of all is to try to only use water from local sources good drinking water can be had straight out of the tap in many countries if it has to be transported bottles made of glass or stainless steel can do the trick they can be used many times and are therefore a good alternative to plastic bottles soon we might even have ones made of algae that are composed of all even bottles that you can eat there are many ideas out there. we don't just dream close and it also provides us with green energy by hydroelectric power plants. most if loz through its head that begins to 10 hydroelectric generated turns this mechanical energy into electricity. the problem is that fish and other creatures swim in the

ocean and palace sound like this means says he's dead for them so what's the answer . to this little fellow isn't quite ready for action yet if it weren't being kept firmly in place it would disappear into the murky depths of his offices unfortunately for the time being this fish lacks all intelligence it doesn't have a brain it doesn't have a way to move or a sensor system for now we're just checking the model. we want to know if it's capable of withstanding conditions in a turbine such as a current of 1.2 meters per 2nd and to see what happens to it. stefan her going to his team at the university of magdeburg are working on a prototype of a robotic fish. in order to protect the many thousands of real fish that

die every year proud. going through a hard row electric power plants. musial has been shredded by a turbine as biologist from the go wagner explains hydroelectric power plants are fraught with risks now if. getting directly hit by a turbine blade is one cause of death another risk is that a fish gets caught between moving parts and its skin gets torn or damaged. home and strong turbulence is also a major problem because it means fish get thrown about like in a washing machine. you know washing machine or. hydroelectric power station operators in europe are supposed to ensure that fish can travel through their turbines and safely for no real fish are used in the requisite safety tests and that's where robotic fish come in. the process of investigating mortality rates involves animal testing and in germany that killed several 1000 fish

a year sometimes up to $100000.00. the tests don't always run as smoothly as this one here a fish is swimming through a turbine that's moving very slowly that's not always the case. the aim is to conduct such tests in future with robotic fish equipped with a lightweight drive system and sensors to supply the researchers with data about injuries sustained in hydroelectric plants. as a source of renewable energy hydroelectric power plants are increasingly common so this is a problem that needs to be addressed. ringback in the robotic fish could be a solution. but what if turbines destroy them to. plan

. it is to build the head much like the black box of a plane so it will survive even if the rest is destroyed. it won't matter if the pale comes off you can just attach another one. but as long as the data are safe and can be recovered. while there is widespread awareness of the need to avoid cruelty to other animals the suffering of fish is often overlooked. a quarter grow bods should help put an end to the turbine trauma. even if fish seem pretty silent to us they do communicate with each other. clown fish click their teeth. this make blubbering noises all sing like gods. caring pos gets to speak to each other and some shots seem to use visual cues to

keep in touch. but the way from nigeria send us a question about that. and how do you fish sea in mortar. underwater everything looks blurry to humans that's because water has a higher density than at say lightweight then does they pass from at a water and a slow down that means an image isn't focused exactly on the retina as is the case out of water but behind it hence the diving goggles compensate for that. little. girl or the fish by contrast have almost spare echo hard lenses and can see everything up to a distance of one meter clearly. to look further away they are just focused by moving the lens closer to the retina. they

still can't really see far but usually they don't need. they have a wide panoramic view because of their side facing eyes. and ultra wide angle camera lenses called fisheye lenses mimic this effect. fish see more colors than we can they have receptus not only for red green and blue light but also for ultraviolet. light in the dark depths that helps them locate prey that sport brilliant colors fisherman use colorful bait to exploit this ability in fish. or some fish it turns out to can distinguish different human faces. as a study of archer fish found it. they shoot down prey by spitting a jet of water. in the experiment they were trained to hit a picture of

a particular face in most cases they succeeded. fish vision is far better adapted to water than ours otherwise they wouldn't survive. the problem is red y. are great but i'm going to have to. do you have a science question you've always wanted answered it. and saying it is and if we answer it on the show you'll get into little surprise as a thank you. come on just ask. for more stories from the world of science go to our website or find us on twitter . these of was have fleas so plankton that are abundant in most lakes. they are only 2 to 6 millimeters in size when conditions are right they can reproduce pretty

rapidly. but when environment. conditions aren't as conducive their eggs can lay dormant for years until the air is cleaner again this was the case in lake constance which borders southern germany switzerland and austria. lakes are home to complex ecosystems although lakes and ponds only make up 3 percent of the earth's surface they're an important natural habitat but they're being thrown out of balance by overfishing pollution and climate change constance in central europe once fell victim to some of these factors to. believe that up to rena is a researcher from indonesia she is examining how the lake has changed. its route on you had before the 916 this lake was all ego trophic meaning it had a low level of nutrients but by the 1980 s.

it had become a future fick this means it's overly fertile and plant life like algal can flourish to the detriment of animal life and its water quality decreased because of additional phosphates from agriculture and household waste the governments of the 3 countries that border the lake germany austria and switzerland decided to restore it and now it's all a good chance we could get so it's returned to its natural state. researchers are trying to find out how aquatic life reacts when the lake changes in this way from all eager trophic you trophic back by the naturally all through human intervention knowing bass is key to preserving lakes and their ecosystems so are plankton such as daphnia are often used as test subjects because they react quickly to changes in the environment. up to reno has brought a variety of so plankton from the lake to be examined in a bar a tree than

a blackberry that mia by studying. so hang 10 like daphne you know we hope you understand how i like changes from your church to only go to church if aig said from an overly high nutrient level which is not good for the ecosystem to a lower level and a better quality like. the marine biologists conducted various experiments on daphnia in the lab measuring their body size each time she wants to know how they respond when the level of which is their food supply decreases she also exposed them to a greater number of predators both of these are effects that occur in the shift from you trophic to all of the trophic waters. sat up and i hope that i can use the knowledge i gain in germany when i return to indonesia if i can understand how daphnia adapt to predators and to be availability of food then i can use that information to breed fish in a sandpit lake in indonesia using only natural food. is there were

a plant in our natural food for fish but i wanted to make the lake more beneficial to the community by creating an eco friendly fish farming area without artificial feed only relying on the natural food in the lake. lake constance is now a healthy body of water again in the day to the elite of to mean a collective will hopefully help her to restore lakes in indonesia and to rejuvenate these vital ecosystems. that's all for now on tomorrow today we'll be back next week with more engrossing stories about science and technology until then but i.

contemplation. communion with god. what the participants in this caravan are seeking in the sahara. but it's not all in the mind. that like to give something back on something to slow climate change. they want to buy the garden.

came in the desert among the. next t.w. . it's. 5 letters and it's said to be based on its power. box what does it what how they don't let's point out. we send reporter my koku got to check it out. during. the 60 minutes t w. they've been robbed of their soul that's what a people experiences when they're taken from them. countless cultural riches were

brutally stolen from africa into coded. off to europe by colonialists. each artifact has blood on it from the looms that have yet to feel. what should be done with the stone or from africa. this is being hotly debated on both continents. stoli soul starts september 7th on d.w. . griffith. a caravan in the northern side. led by babel as a group of european tourists when their wire across the scorching sounds most of

the visitors have been here before they know the magic of the desert but this trip is different but the end of the week that exchange.