festival to the citizens of the globe this week the 1st batch of more than 1000000 astra zeneca those us arrived in nairobi kenya hopes to vaccinate 1200000 people by june. that's all for now you're watching news up next our technology show shift don't forget you can get all the latest headlines on our website that's. also on instagram and twitter at t w news i'm michael okwu in berlin thanks for watching. and forced into a nameless mass. their bodies your tools. the history of the slave trade is africa's history. just. for our own

trough it plummeted an entire continent into chaos and violence. this is the journey back into the history of slavery. i think will truly be making progress when we all accept the history of slavery as all of our history. our documentary series slavery routes starts march 10th on g.w. . shifts special robots can support japan's rescue operations and save lives. 10 years after the devastating fukushima daiichi nuclear disaster japan the still struggling with the aftermath now a specially designed robots are helping clean up the science. this is the who which radio dermatitis. it was exposed to high doses of izing radiation for far too long

. radiation sickness as many different effects seizures own controlled bleeding. burns and blisters. it can even lead to bone marrow failure even today anyone who ventured too close to fukushima is reactor core wouldn't survive long. 10 years after the triple core meltdown radiation is still extremely hazardous today some 7000 people are working on decommissioning the power plant but due to the high contamination they are only allowed on site a few days a month on march 11th 2011 a tsunami struck japan's coast and caused the nuclear plants to fail but how can we clean the radiation zone we can't even access. with robots. but it's actually not that simple not even all robots can withstand the radiation they're exposed to in fukushima disaster zone but more and that's later energy provider tepco in tech

giant to shiva teamed up to develop robots that could help clean up fukushima's radioactive rooms the challenges they have to face are relentless some pass the test others not quite here are 3 of the most exciting robots from the last decade. of the biggest questions in the fukushima cleanup remains. where to start. parts of the buildings were destroyed when the reactor exploded the blast caused walls and floors to collapse and reduced sensitive equipment to twisted hulks of metal the situation varies in each building but all were contaminated when radioactive material was vented from the reactor containment vessels. this is where so current and rosemarie come into play the robots joe was developed in 2015 to inspect the buildings but that's easier said than done some floors can only be accessed through extremely narrow and steep stairways no simple feat for robots but

that's exactly what rosemary and security were built to do. in addition rosemary was fitted with a gamma camera that can detect and display radioactivity. you can see that here in the colored images the recordings were to be shared on a wireless network and that's when engineers faced the next challenge. nuclear power plants are designed with a number of safety measures and built to withstand extreme conditions. wireless signals barely make it through the thick concrete walls of the reactors that's where scurrah comes in the robot functions as a signal transmitter and helps rosemary relay its recordings to the outside world. both robots were partially successful in their mission they enabled authorities to get their 1st overview of the reactor after the fall out. the scorpion was the great hope for fukushima and 2017 it was meant to inspect the

spots where radioactive lever 1st elite out of the reactor vessel joining the 2011 disaster the nucular fuel rods had heated up to 1200 degrees celsius causing them to melt through their metal casings the japanese government invested a lot of money in developing this little robots it was named for its appearance the cameras mounted on a retractable arm that hangs over the robots body like a scorpion stale it was tested and improved for months until it was tiny enough to squeeze into the containment chamber. the only way to get inside was a 14 centimeter wide hole in the concrete wall created just for the robots but before the scorpion could set out on its mission in units to the exploration suffered major setbacks one week prior and with a robust designed the clear the way for the scorpion failed its comrades the cold

and to the extreme radiation. nevertheless the scorpion was slated to deploy unlikes occur and rosemary wireless data transfer wasn't an option because the robots had to crawl to deep instead it was left dragging a heavy cable along if successful it would locate the radioactive waste that had leaked out of the reactor vessel so it could be salvaged in the future. everything went smoothly at 1st. the scorpions recordings were transmitting with i would say hitch. and it was getting ahead well. but then. just 3 meters before station the scorpion simply stopped what happened we still don't know for sure maybe it got stuck or maybe the radiation was too much to handle it. in the end the researchers decided to cut the scorpion loose and abandon the mission sorry little guy.

after the scorpion had failed researchers had to come up with another solution to find the leaks material they gave up on units 2 for the time being and concentrated on reactor 3 instead but there are a whole new set of challenges lie ahead when the reactors exploded in 2011 for containment chambers were flooded to cool the reactors of course the perfect part would have to be small enough to maneuver through a tight hole in the wall strong enough to drag along a cable that could transfer images and survive as an emergency rescue line up and swim. quite a tall order but the japanese engineers found a compact solution little some fish after losing the scorpion they weren't taking any more chances they tested little some fish for months and pools fitted with a camera and a tiny propeller powerful enough to navigate it through the dark then it was time to send little sunfish out. the mission was nerve wracking. a pilot

a student through the water with a controller reminiscent of a video game. on day one none of the material transmitted was any good. but then on the 2nd day of the mission the little robots bumped into a waxy mass on the floor of the containment chamber the radioactive core had congealed into a solid lump and dropped to the bottom of the flooded structure success. is now secure rosemary scorpion until some fish were just a few of the robots built to understand and repair the ruins of fukushima in the last 10 years their main objective was to explore thanks to them we have a rough idea where the radioactivity is highest and where the radioactive waste has settled in the coming years the challenge will be to. covered this waste here 2 robots will be dispensable robo diggers are already being tested for their missions in the hopefully not too distant future.

lies along the ring of fire making it a hotspot for natural disasters to save lives researchers are developing new rescue technology. made the snake bot it's $36.00 joints make it incredibly flexible. this lets that we go across tough terrain slither through pipes and even climb a ladder should disaster strike the snake robot could be a lifesaver it's been developed by a team of researchers at kyoto university. they can i took it all 1st of all these robots are used in places humans cannot enter or where it's not sure whether it's safe to enter. the robots can help to measure of concentration or c o 2 levels. of the vatican hope to evaluate where the rescue workers can be sent in

pencil moved out of the sewer to move to a cup of coffee this or the new height that we not consider places that may be in danger of collapsing but that occluded old what's can go in and gather information . so in broad terms these robots enable access to places where it's too dangerous for humans to enter. the united $100.00 these are applications where robots can play an active part called service and what about the weather for surgical procedures for everyday situations snakes have often served as models for industrial design their flexible bodies are the perfect blueprint for agile robots . save in the heavy sticks are interesting creatures that can move without legs that's the 1st aspect of this mysterious. animal that's my my curiosity. to see war up aim isn't simply to imitate snakes.

we want to create a snake like inspired robot that's better to snakes sort. of arsenic robots can climb up ladders and there's a very even and slick surface and the more there are no protruding cords the can slip into woodward who couldn't cut over the. fit into each other or still caught small so many could actually change of 2 coolness on the lets it bend still more smoothly because so you design them and that is vital to rescue missions japan is prone to natural disasters earthquakes are common in the country must be prepared for typhoons tsunamis and mechanical rupture ever since the kobe earthquake in 1905 let's you know it's been developing technologies to help. to deal with the end of the song regionally i worked on space exploration robots. but

then one of my students died in the great hunch an earthquake. most vets when i decided to focus my research on disaster unresponsive robots. go the snake but is operated using a controller and comes equipped with a camera and numerous sensors engineers considered many different scenarios when creating the robot for instance when searching for survivors after a natural disaster the bot might need to be able to climb up a pipe. outside or inside. ladder. or even slip their it's way through pipes. to ask you to use google will at 1st i wanted to create robots that rescue people hope. but then i changed my mind. when disasters strike an

urban area it's incredibly hard to find victims buried under the rubble when you go out on a. august or when the rescue workers will dig around here and there we don't have much success there will still be no hope so what's going to trial and error process that's wastes a lot of valuable time during which people might still like not this month but the . last one for me tashi matsunaga also designed this rescue robot the prize winning . its 4 legs and tank like treads let it go places humans kept a multi-functional arm effortlessly opens doors and retrieves objects. these robots are still under development but soon they can be sent out on rescue missions and help save lives.

cower behind the wheel jumpsuit she is one of the few female cal drivers in the song she tries to 2 hours a day her son died grandeur while she says she talks about the war and how lucky she feels to be able to provide a better life for her to. read. next . in. different on the islands of. you. here women are in charge. of the archipelago has had

a patriarchal system for centuries of. the rare form of society. women differently. what's the word. and how sustainable is this culture. and so for. starts marching on t.w. . hello everybody and a well accountable ram on a raft. we are living during the most extraordinary time in history. support for profile

the electorate.