and that it's bridged racial divides you know it's been able to you know where there is a racial divide they still want to come together listen to good music and that's moved mountains totally and music legend who will always be remembered indeed warner poland always great to talk to you thank you so much. and that's the latest from d.w. news this hour i'll be back again at the top of the hour with another update for you i'm marrying every student from me and the entire news team here and for lent thanks for watching. it's a deadly sin. and the window of nature. it affects us. and threatens to.

greet. the sexual desire for me. that drives. her to. lead why are we greedy. we go in search of answers in a documentary film. starts may 21st p.w. . shift special how can we preserve our data for future generations. from photographs to scientific research to open source code we store much of what we produce digitally however most digital storage mediums will degrade over time and software for retrieving data is constantly evolving so show the data we stall will be

available to future generations. in the past people recorded important information on stuff. and preserve their collective knowledge for hundreds of thousands of years. today we're living in a digital age we can install more and more data on smaller and smaller storage units but these are not built to last and we're facing the risk of digital memory loss. when it comes to computers things quickly become outdated. collectors like phoenix cons make a point of holding on to the. late technology thanks to people like him we can still access information st on older data carriers. for one thing you need a storage medium to be intact. then you need the appropriate software to retrieve the data and lastly you need an operating system that is compatible with that

software switzerland's computer museum showcases obsolete hard and software the team has often succeeded in restoring data from own storage media. there's usually a workaround for accessing the data but it can be tricky sometimes we need to build an interface converter so we can link the old system to a u.s.b. port we usually get it to work the key criterion is that the old hardware is in good condition. later bush is the museum's go to guy for retrieving data from old storage media his current mission to access data stored on this from the disk is thought to contain information about a special stamp issued by the swiss postal service in 1996. was off i hope the drive still works and i need the floppy disk to be intact. but i'm optimistic that. plato is

a computer scientist and has been with the museum for almost a decade he's an expert on obsolete data carriers. i hope we can speed this up otherwise we'll have to restart the system now we should be able to reject it. the museum has a vast collection of computer hard and software from different periods in time which means writer can usually find whatever obscure device he needs to retrieve data from old storage media nothing is happening oh wait now it is. still the best film roles for example will still have the photos on them unless they have been improperly stored that it. uses magnetic tape which the great slowly and the electronic storage media we use now won't even last 50 years to go to

a. data gary's can store less but they're often more durable magnetic storage media like floppy disks last only 20 to 30 years optical storage media like cd roms are highly susceptible to scratching in temperature fluctuations and although hard drives send us the sticks can store large amounts of data they often degrade within just a few short years studies show that our global data storage needs will grow to 175 trillion gigabytes by 2025 to process and store data we need new innovative archiving solutions research is a xerox it's a hard looking into one data carrier that's been around for millions of years d.n.a. . d.n.a. has 2 advantages it has extremely long jetty so it will last for up to 1000 years so i think and it has an extremely high storage density so we can say vast amounts

of data tiny's face. says the chemistry professor at zurich. together with his colleagues he's developed a method that lets them record digital information like an m p 3 file onto strands of synthesize d.n.a. this is how it works d.n.a. molecules consist of 4 chemical bases a thought any sayto seen fine and g. kwami binary computer codes assigned to these bases respectively then an artificial d.n.a. strand is generated from which this code is safely stored to be retrieved at a later time. so far this method remains very complicated and expensive but id companies like microsoft have started investing in this field and tech start ups are also looking into d.n.a. and storage media for good reason. you know used to computers having ever greater

storage capacities in processing speed nice light i think that's the physicality of the same time we know that the physical properties on which our computer technology is based have limits and physicality. shout industry also how that's why the tech industry is looking to the world of biology and chemistry to see which other data storage techniques exist. and there you have d.n.a. . doffing and. one reason why d.n.a. makes for a good long term data carrier is that humanity will likely always have an interest in analyzing its own genetic material so it is probable that we will retain the technology to retrieve data from d.n.a. in years to come d.n.a. segments and capsulated in glass are supposed to keep for up to a 1000 years or so tiny that they're only visible on the an electron microscope each segment can store about 10 killer bytes of data the equivalent of 2 pages of

text. you can see we've got 20 to 30 pages of text. but we're looking at this in. 200000 times magnification. so this really is tiny. if we zoom out we're looking at an entire book of the bearded. on the out further and we've got the equivalent of an entire shelf of books for the people to call for more. and you see millions of these class elements so if we had one around the size of a dust particle we'd have an entire library park. this promising data storage method however is still in the early stages of development. how can we preserve data for a very long time and also protect it from outside influences and attacks it in the norwegians has created a special days of fun for the arctic world on

a kind of auschwitz bed in iceland they plan to store vital data saved on film. we're in the town of drum and noways capital all it's here that arena be at strong's company is based on the team is working on how to preserve data for a new eternity but in a sense u.s.b. thumb drives for example are not built to last i could be as i would use a welcome to the today this fits into my computer but it will do that tomorrow most likely not because even now you find computers without this u.s.b. interface yet because this is the all i was used to see so you might you know hundreds of years in us being open he knows that it is so as now it can fit in the computer when it's in the computer i can take those they don't and i convert them to our super high resolution to our calls and write them off the phone. the idea is

to preserve the data for many years to come the company technician retrieves it from the u.s.b. stick and then saves it into q. quick response. they're essentially what happens when you turn binary computer code into 2 dimensional black and white. this q.r. code is then exposed on an analog black and white film which can eventually be developed. this may not seem like a method from the past but arena be extra and his team believe this is how we'll be storing data in future. they say under ideal conditions film keeps for over 500 years and that it superior to alec tronic media. but in times of everything gets digital why such an old school technology so the film medium has been carrying all the additional information from the past into the

future the last 140 s. so what we did we converted the film the photosensitive phone from an analog information carrier to a digital information carrier and we did it because of the unique longevity properties of the robustness of the media basically this storage medium is the only self-contained storage medium around that means it contains all the information that you as the client and the owner of these data needs at an arbitrary point in the shooter to be able to recreate that and just see you get your information against and you can see the data stored on film with your bad eyes at the beginning of the road there are even instructions for how to access the information even if you what you basically see here is the instruction how to retrieve the data this is human readable information and if this explains in detail about the storage medium how the storage medium is constructed how it's supposed to be stored and kept and then how you can get the data back the data retrieval technology and with this explanation i'm going to understand that in 500 years yes as long as you are able

to read english if you don't understand the language which is there you can use the dictionary to get it into your life together ok but how can such films be stored for 500 years to find out we traveled further north to screen found here libyan strong team has joined forces with a norwegian construction company together they run a digital data bunker so to speak and all we can all to tell you is the demilitarized zone and their focus it particularly stable just over 2500 people congress arctic occupied to go that there are many defunct coal mines around the main town of longyearbyen and in 2017 the arctic well down kind of didn't want to go since then. representatives from many different countries institutions and companies have traveled here to secure the store their data in the sub to ring in bunker we're brought here to be the 1st bit of a wire by stabilized so we think that they're there very often.

so this is for us or before the concept is there that can be kept here as well but for. many many here so maybe a firearm. of course the long term threat preservation is reform of the within that the that it can see into de france facts in 3 different data centers about there we believe a lot in the importance also augured that was it didn't get this seeds of culture here. john is to create a kind of bank campus humanity's collective knowledge some 150 meters below for some others the data here protected by the bomb a frost will hopefully be safe considering the world's grown data storage nice will soon need for the long term solutions.

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