6 crises was every single connection mapped out shows the geopolitical reality. the on the board is what makes things the way they are mapped out. navigating a changing world. now on youtube the you can just, i'm often told them to dont these days good very about. so roommates like programmable goals that know how it find muscles put by moses. so the bit lacking is not truly identity. it's up to delancy and flexibility of living beings. not just so you can change the box and move on this edition of dw science change. welcome to tomorrow, a. today our muscles are

incredible. they react fast. he's energy efficiently, and let us perform complex movements. that's why they've inspired robotic engineering for decades. robots had to getting ever more agile and stable even without artificial muscles. but that could soon change. the small robotic leg is the 1st to use electro hydraulic actuators. essentially a type of artificial muscle look like color, look like a frog. so yeah, it's like fun. you see i can use it. let's be sonata to those me. it looks a bit like applied by a so actually here on this upper blocking, there are 2 eyes. and these are actuator pos looked like the bill. this is additional to the hopping robot. like might look a bit strange, but it's been evasion, lives and it's actuators. artificial muscles developed at the max planck institute for intelligence systems in germany. the artificial muscles are highly efficient

and use very little energy. the leg is also remarkably agile, easily adapting to different terrain. and artificial muscles are still fencing, meaning the leg can detect obstacles and react automatically without complex programming. it's almost like a reflect, a kind of muscle memory. but how does that actually work like a by the ground? it's like with a small stone, big stone and grasses. so the muscle ultimately got adjust the motion and then generate adoptable res. i'm making the commotion size the advice about. in other words, it doesn't know what kind of surface it finds on done, but because it's often adaptable and respond directly to the ground beneath it, without any complex controlling technology. when a, it's a complex, legally mistakenly submitted to the robot like works much like ours. when we jump in land, we don't consciously decide how much the vendor needs are musculoskeletal system,

it just automatically to the train we fits electro hydraulic muscles. the new robot like follows the same principle, has a electrodes and we upright high boards as the antics through blackboard engine. for example, this is the image x, so we have 4 inside and this rock box is the next door. and when we apply board this next door will start to keep ends in making construction. it's a lot like how real must work. an oil mixture contracts on command and response to an electrical impulse. the higher the voltage, the stronger the contraction. it's a new approach, but the technology is reminiscent of the hydraulic actuators that powered an earlier generation of robots. when those robots became steadier on their feet, hydraulic actuators began to catch on. but the systems consumed a lot of electricity. and when the hydraulic causes 1st, they created

a huge mess. that's why many developers switched to using electric motors and robot joints that might see modern but electric drive systems have been around for over 70 years. the new artificial muscles might one day offer another option for powering robots that could have many benefits. they can change the formation and also energy efficiency. when the extra dies hoarding space for just making force, actually they don't have to consume any power. so this is a biggest different as problems and no more like i was a b, d, c motors or something as an extra incentives to them. i mean it's existence. this thermal image illustrates the different traditional electric motors heat up when holding a joint in a bit position. the artificial muscles stay cool, eliminating the need for extra cooling and saving energy. but the technology isn't per 2nd. sometimes when the artificial muscles go limp,

the scientists have to give them a little massage to get them working again, the gun surfaces, human times, you forget that it's actually a robot and the the massage helps release electrostatic charges that can interfere with operation in a way it's like the artificial muscles gets stiff and sore, which like ours is followed, the small charge goes up inside the muscle, which can make it lots effect dismissal good from when we massage it from top to bottom. it ideally we gave us full functionality to give you the positive, hopefully send out and face that sort of the technology is still in its infancy. so if you had got to go with the territory, that one day artificial muscles might be capable of powering robots with 2 or 4 legs. robot hands could also benefit gaining greater dexterity. right now, this conventional robot needs a complex system of sensors to pick up and move around with artificial muscles that

task to be much simpler to forget this month. so you might be able to grasp ideally seemly fragile objects more easily life and can do that and interact with them more naturally than a traditional robot. or one made from rigid material to invasion. plus or talking about this for about 10 longer thanks to artificial intelligence and machine learning. robotics is making a huge stride, mastering increasingly complex task. but so far as these advances, it's mostly been in software. it's been a long time since these seem real innovation and drives to the new robot leg, powered by artificial muscles, could help change that by modeling itself after the muscles and tendons that make humans. so our child, the now we're ready for lift off. when it comes to a muscle, so it gets to real workouts and the trending useful to wing foiling. how the wing

folds actually, what the wings are attached to the bottom of the board. the shape of the front wing is what the board the top of the wing is cub. say the water leaves foster above the wing. somebody set that means the pressure on the boat is lola which creates list and that comes back to the board, making it ready for lift off and one of switzerland many legs. students are developing a special hydro foil boat designed to run on renewable energy. the goal is to design a boat capable of crossing lake geneva. so that's good. we got, there's the, what is it? we're checking the propellers. they're powered by a motor up here, connected through an angular gearbox. super it works.

the boat is equipped with 3 carbon fiber, dra files of different size is the key to its performance fitness in oh, i see that because makes us belford there. the heart of the boat show me. the hydra foils make it possible for the boat to lift out of the water and cutting drag by 50 percent. that makes the boat much more efficient process additional but not every thing in this project as high tech. sometimes a simple solution like tape does the job here, the tape is used to smooth out turbulence, further reducing drugs from the type, it's not just using carbon fiber and high tech material, so we'll use whatever is most effective and efficient. we're not building a cruise ship, we're designing a boat that's as efficient as possible. so the 2, it's after 2 years of development. it's time for the real test crossing

lake geneva this hydro for it will run entirely on solar and hydrogen. fuel compliment balance is the, this is the 1st step towards the future of passenger about so now we want to show that innovation is possible. could you give us some, some procedures? it gives us nearly 70 students from different fields are contributing to the project. alternate elizabeth can sell them color, we're a little nervous because we put so much work into this. now we hope that will pay off or just tell that you that the the students are working towards a more sustainable future by building on an idea from the past. the concept of using under water wings to lift the boats is over a 100 years old. this photo shows that hydro foil boats were already induced back down on lake majority. this could be the earliest film footage of a hydro foil, a boat designed by alexander graham bell, one of the inventors of the telephone. but it took decades for the idea of the

flying boat to gain traction in 1952, switzerland became a key player in the hydro, a foil, the, the swiss company supermarket develop some of the 1st commercial hydro foil ferries . the news if they're cutting edge design and spread around the world of empty about ship those here on lake blue sir, and the boat has just gone into service. it looks like a modern, fair, a. but it's actually the fastest passenger boat in the world. it reaches speeds of 40 kilometers per hour, rising above the water on hydro foils cdl, dosage dns of tax. the idea took off super more dominated the hydro photo market leading the industry for nearly 25 years. their vessels grew larger, more powerful and more advanced. by the mid sixty's hydra photos had even made it

to the silver screen. and thunderbolt sean connery's james bond declined to board a luxury hydra foil yacht owned by the films villain. but hydra foils are prone to damage and costly to maintain. in many places, they were replaced by bridges or short hall flights. overtime they fell out of favor today ship builders are using lightweight, durable materials like cap laura and carbon fiber, making 100 foil stronger and more efficient than ever. these innovations have given the technology a new lease on life. now the students are about to put their design to the test, their route to 14 kilometer journey from those on switzerland to abn france. the solar powered hydro foil is wheeled to the harbor. the goal is clear to cross the lake using the hydra foils. they design themselves with minimal emission. so

nothing. now that we're very excited, but i'm sure it will go well, we're confident and well prepared. invitational obama shay joins the students at the lake, a professor at the swiss institute of technology. he coordinates the project. the focus is on sustainability from the votes, energy source to the materials used in its construction. on the se, the boxes we want to be part of the green revolution. so we're training students from different fields to make sustainability, a priority. united warranty, the ones that have it on the boat gets one final check, then the pilot pushes the throttle. it's time to head out the, the $250.00 kito, kraft lifts out of the water heating just 15 kilometers per hour to take off.

they've cleared the 1st challenge, but what they may get across the lakes. the students from those on aren't the only ones pushing the limits of this technology from stockholm to san francisco, new zealand to ireland, shipbuilders, and start ups of world wide are developing and testing hydro for oil fairies that can carry up to 130 passengers. the key innovation is combining electric and hydrogen powered propulsion. the goal to glide across the water emission free designers believe hydro files will enable higher speeds while reducing wave impact, the noise pollution the to all sometimes. well, actually, yeah, come on, say come, it's all, it's amazing to see how this one's nice. technology driven by innovation has grown into

a movement who's getting in stream. uh so see what i want. this one is what every way you look, boats are lifting off and gliding above the water for the the most. it's pretty wild folks us who is such a fool for that one. but don't expect to see hydro foils on cruise ships like this one which carries nearly 8000 passengers or on large cargo vessels. therefore, wheels would need to be so massive that they'd create too much drag. and hydra photos aren't well suited for open ocean conditions. mission accomplished, the hydro foil boat is heading back to port the the students and their professor are proud and relieved over. do you mean you we really flu calm waters. the sunsets sailing straight ahead

. incredible. the only issue was the hydrogen, but overall it was amazing. i don't see the excess on of the tape held, and the hydra for both was both faster and more energy efficient. hydro foils could play a major role in the future of sustainable water transport when it comes to sustainable shipping, the large container ships that chris across the oceans aren't particularly climate friendly. they haven't huge amounts of pollutants on it, so you get to us. in 202409000 call. great best sol. sale the world's oceans. and the collision cost with marine animals, including whales, in the waters of the coast of purcell. the water is choppy today, but the humpback well is it bothered. majestically,

it rises to the surface for air, then dives back down. the scientists are thrilled to jago for robbery has spotted to humpbacks, probably a mother with our calf. the marine biologists head out almost every day to observe the whales. these gentle giants come to the warm, shallow waters off the coast of victoria and south eastern brazil to raise their young april seemingly. it's soon amazing to see these creatures up close. they can way up to 30 tons and reach 16 meters in length. that's the best view is from the air. some of the whales are shy and keep their distance from the boat as it rocks on the waves. as well as my eyes, like cheek has bought the, the older whales might have seen members of their pod hunted, which could have left them traumatized by some gal up there watching g. a. we have to remember their highly intelligent animals seriously. didn't want me to finish

a commercial. we're laying off brazil's coast was banned in the mid 19 eighties. since then, the well population here has grown from just 800 as to nearly 30000. this area has become something of a well nursery. this mother wireless gently lifting her newborn calf to the surface for a brass, but the whales aren't completely safe here, some suffocate in plastic waste, while others get caught in fishing, nets, and drown. the biggest threat, however, comes from the massive ships entering and leaving victoria as harbor credit for what makes them so dangerous as a bucket. so put example, a couple of chapters that shift just left victoria's harbor and is heading out to transport goods around the world. she must st and ride up there. well mother is swimming with our calf view. if that ship isn't careful, it could collide with them, possibly killing them, as well as i'm off. the ships are also very noisy,

disrupting the wireless communication biologist rudo russian day, uses an underwater microphone to record their songs. he has been a is unless they well sing, especially the males. and they use songs to attract a main sensor, communicate with other whales, for many castle wheels help maintain the ocean's ecological balance and even regulate the global climate as well. you're going to have somebody zip up there which wales or the gardeners of the ocean system. there excrement, fertilizers the water, and because they're so large and heavy, their movements helped mix the oceans. layers is that this process shuttles, nutrients into areas that would otherwise have very little to no organic matter, gentlemen, to think about the long run. there's nutrients, sustain planked, tiny micro organisms that store vast amounts of c, o. 2,

when wales feed on plankton, they also help regulate carbon levels in the ocean. this marine bio diversity is essential and wells play a crucial role in keeping it in balance as well. the whales have been here for millions of years and won't vanish overnight, but this is also about us about human survival usage. so what happens in these waters has a direct impact on our own future. the by 20 says the un aims to have 30 percent of the world's oceans designated as marine protection areas. right now it's only 8.2 percent. there's conservation areas to protect all right, sions, and help with kind of shy reyes. why officious gas? i'm just as important me, those sons, those so allow for interaction and exchange categories. you is preparing for a dive, a marine scientist at the ocean and logical observatory and vine use in man in

southern france. she studies marine connectivity. the way eco systems in the ocean are linked for focus is on gord, guardians, a type of soft coral was also smelled the more glass you today. we're conducting a population survey of gardonia and substitute goals out there like to study connectivity. we 1st need to know how many reproductive individuals are in the population of, of those include credentials, because you will also collect samples for genetic analysis. back in the lab today, she's joined by a doctoral student and a professional diver. earlier this morning. the team wasn't sure if the dive would happen. the weather has been unpredictable. but after assessing the condition, the captain and the divers agreed the risk was manageable. the level of id uh we're headed to kathy. yeah. and the when is the when do you think kate,

this is frank stuff that creates unusual credit in the water with what makes it a special environment? yes, we must secure you. the bane you're buying your is a natural marine reserves. some areas are under very strict protection and are completely off limits to nearly all human activity. but even here, marine populations can die off due to storms, heat waves, or disease. the problem that we need to do to try that heavy, so that's the case the spread of large. well, it's the only way a depleted population. can we cover who free? that's to can just one area is affected larvae from a healthy population of square canadian help replenish it. was that what is it called? what's the date or deactivate area alone can to prevent natural disturbances to make it so could you fit the heart of that connected network and reserve it because of our resilient uses that way? the long term benefits? so if there are any reserves opposite of this, what that any t i lost and the boat has reached its destination,

the the researchers are studying or guardians along the coast. the soft corals drive on rocky. c bents. today they're focusing on a species of white. gorgonio guardians, are natural ecosystem engineers, forming small coral force that provide shelter for many other marine species. that's why gardonia and serve as an indicator of biodiversity. the team carefully counts how many individual coils live within a square meter, and records their size. for goods un gorgonio and are the ideal species to study marine connectivity it's i'm anybody sco guardians attached themselves to rockers and stay there for like a fidget said the only time there's any exchange between populations is during

reproductive session with the government. so we'll have a quick search for going in eggs visible here as tiny violet dots on the branch of a red. gorgonio are fertilized by sperm, carried by ocean currents. as the larvae develop, they detached from the mother coral and drift away. this free phase, when the larvae spread through the water, is now being replicated in a computer simulation designed by the researchers. now the do go good. those are starting out, i'm sure, is that gardonia and large, they behave like passive particles, which are carried by the currently to the cool signal to see if we can map out the patch. the larva will take see if it were released this specific location within time i support that i say to a lot of the simulation is based on ocean current models, similar to those used in weather forecasting. and the next step, the researchers simulate the release of 2 different populations represented by red

and blue dots at separate locations along francis mediterranean coast. we. oh yeah, well no, that's only put through to us through the particulars. actually we reached a point where the blue and red population start to move. i'm stuck with all this is how we measure connectivity between populations and you see fit as a connectivity. means that individuals from one population are transferring to another no type of protest. but do these models accurately reflect what happens in reality to find out the researchers collect samples just as they did during their dive that morning? back in the lab, the samples undergo genetic analysis. i see the dues on sunday when the genetics fingerprint the 2 populations are very similar to protest. it means patient makes the lot so soft to them real quick. but if they're fingerprints are very differently to put in their connection is minimal because visual poor because so to connect to this research i'm maureen. connectivity is especially important right now because of new initiatives to establish more marine protected areas in the

mediterranean is underway. right now just 0.04 percent of the mediterranean is designated as 0. you sound like the one in button you put under your bio diversity strategy. that number is set to rise to 10 percent by 2030. don't sure will agree. so the challenge is designing these new protected areas. so they're truly connected to fail. cuz right now we're working with what's basically a blank mass o c, but i can't, we don't know how far apart enough to protect its own, to the 4th, to allow us to be seen, to move between them. so if you are beneath the ocean, there are invisible highway of hoops that fish tremble every day. but until recently we didn't even know they exist. you still have to adult to report somebody, they'll come to diesel. we know some and bucket does exist. so by mapping these under water highway researchers and to create a connected network of resilient protected areas where marine life can fry

the thought. so for now, thanks for joining us. i'm sorry to see you again next time onto laurie today by the the, the,

sometimes it's hard to find what you're looking for. but we've got something for you. we would never compromise upon teakwood drive or i'd take that over to a verification equal drive and he could opportunity of work in 2024 us can women step down with a ton of to demand better? really, for the women of us down this time,

kind of the unique insights into a seemingly focused struggle. the, the sharp edge of teeth starts much stuff on the dw, this the shadows of jumping colors. these pod costs and video shed lights on the dog is devastating. colonial har is infected by germany across and he employed the scorched coast farms and destroyed lights. what is the legacy of this wide spread races, depression, today? history, the just we need to talk about here, the stories, shadows of german colonialism really couldn't be watched the latest news. 12 single china cabin was put some sliced chicken, a 3 car in these events in self titled videos challenging jem and

would so explains. quick and easy. short and sweet. found us on t w dot com, click on apply on social media. video news for learning german quotes from sliced. can i ask something? why are we putting down the virus? let's throw it into the grass so it gets lost. i feel like covered 19 and it's long term effects. have just taken meal from what? i hope we'll see each other again one day. the task that in hospitalized the cold with 19 patients are being killed in the industry 0 in

the 5 years officer. we remember window roads, it still stops march 8th on dw. this is dw news line from berlin day to the munich security conference in germany. it's translator and ukraine's president are set to speak in the wake of blistering verbal attack on europe from the us of vice president in britain and across europe . free speech i fear is in retreat. katy vance rebukes europe and claims gates greatest strength comes from within. sending a shockwave to the summit. we bring you live coverage from the conference plus an anxious wade es 3 is really hostages. are on the verge of being freed in gaza. it's

part of the shaking ceasefire deal that we'll see.