of the treasure map for modern below describe it as some of us wriggled, begging sites on youtube, and also the they could play a big role in the future of sustainable mobility costs that run without fuel and emissions powered only by the energy of the song. many teams the developing, so the vehicle's large scale production is still a long way down the road. researches and engine is making progress. in october 2023 . they mess up to race. the latest prototypes across the street is something drenched out black power. jim and team said that and much more this week on dw sign show. welcome to tomorrow. today of the city of darwin and the north of australia. 38 teams are here to compete in the

world solar challenge, the toughest race of its kind on the planet. the top qualifier on the 1st day was team zone and bargain from often. over the last 2 years, almost 50 students at austin's technical university of worked on this solar racing car, developing its components and assembling the vehicle in their free time. they've named it oddly because it's aerodynamic design was inspired by adelaide penguins. team leader lean or ceiling says from an energy standpoint, starting the race and poll position is ideal. then members, when you accelerate, like when overtaking you, use a lot more energy and you have to excel right. todd at 1st. the call doesn't really like to do that, it can, but it needs energy, of course, and then you're just driving straight ahead. you guessing the flow at some point and ideally, remain out in front. the next morning, the car set out on their 3000 kilometer race to adelaide and southern australia.

top teams from belgium and the netherland sees the lead on the 1st day. every 300 kilometers, there are control stops. and it's time for a pitstop to tell the solar cells that the sun for precisely 30 minutes. and switch drivers the from 8 in the morning until 5 in the afternoon, the teams zip across the on the back. then they have to stop and set up camp. the solar cars are parked in ideal alignment with the sun to recharge their batteries. they're going to do mostly generate energy while driving with but the angles not really ideal. we can only set it ultimately when parked so these are the most important hours in the race. even everyone does all they can not to lose a minute, because that's what brings in the energy in a given think. victory or defeat hinge on how well the teams harvest and use the suns entered to the belgian team has developed

a retractable sense to move more efficiently and the when the outside competition drives innovations, like the says, race, observer marcus, my thoughts of vehicle experts from northern germany and isn't all of those many components installed in the so the costs are specially designed because their engines have to work much more efficiently. and the normal cost of, of range is the problem for everyone. and they're trying to further optimize that of taking a completely different truck and on the swings and what else comes onto the machine . here, it's all about maximizing efficiency and some have made more compromises than others. as teams on and wagner is realizing, halfway through the race, the lead teams have left the field far behind. those top teams are on the road with more powerful batteries, even though they pose a greater risk. nathan, by telling me that leads into my notice, got a lithium batteries with silicone on those are all the rage because of the energy density almost and not the research is still trying to make them safe. a god act

wherever the song right now, i'd say l s p is better chemistry for cause to help good on. so if we chose it for safety reasons, we saw it the cells on susceptible to thermal changes and are safe, even if the island treated the way they should be the probably the mission. so the hundreds. but did you find it depends on those qualities that will be crucial on the final day of the rates playing catch up, the team from often increases speed to over 100 kilometers per hour. with a little luck they could still finish force, but then just 300 kilometers from the finish line. in strong crosswinds, the league goes into a skid and flips. there are no pictures of the accident, driver's e mail, and luckily gets out of it with no more than a square and a few scratches. the team is disappointed as to the crash, but also relief. at least the batteries survive the accident and damaged electricity on sits the electric heart of all calm. and so we really thought about

wherever and how each of the battery cells should be placed. you won't get that horizontal rather than an upright. for example, which is unusual, it pushes the center of gravity down more as much stuff as you can also say that there are no straight edges in the housing. and everything is curved, the cell holders will mailed, including buyers individually. so it's a tailor made vodree in every way the driver's cocked it is also tailor made and on damage the very next day z moment is not behind the wheel scroll down and out of the safety aspects worked as planned movement. so the driver was able to get out a, i'll send content, he was able to press the emergency store even while tipping over, which shows how experienced the drive is off and how comfortable they feeling the cause. it didn't seem on his back to the wheel. now for you and he deserves to drive the loss meters over the finish line for the even if it didn't go quite as we imagined. i'm trying to scan it often to figure out so far as the problem in

adelaide. seattle lee gets to take to the road again. it may not have been the fastest vehicle in the solar race, but it was one of the safest. and the team from often can still celebrate a kind of victory. after clocking up 3000 kilometers and their car powered by the side with minds about signs on 2nd knology. that's like dw signs is now i'm take time. what's to be fun? why do gravitational ways? when did people begin getting high and laughing gas out? the drums boogie to the beads. and what's the passa care? 4.5. find the on says, gets most c w science. oh, new tick, tock, channel. the cause,

just stones. when they break down the side of the boat to run the developments, i mean little dangerous. that battery is empty. but the powered airplane crash that was an advert presidency or a few years ago during the 1st round, the world flight and a plane powered only by the sun history. making jenny had some dramatic moment there switched pioneers of electric aviation fair chunk, the car and andre for spare dared to do the impossible. they were the 1st to build and electrically powered solar aircraft. able to circum navigate the world, the, there were already some tears of relief at the start. in march 2015. as it was stress right up until the last moment is that still men around the world trip in 17 stages, kicked off and abu dhabi,

the goal was to fly around the flow using the power of the sun alone. the car and bush bare developed the aircraft together despite major resistance from the ation industry. they remained undeterred in their pursuit of the bold dream. andre horsberg put together the projects technical team while bear tron p card focused on acquiring financial support. the when you slide, thanks to the sun go, you look at the sun and all of the fuel gauge and say that, so making me fly. something with the development took 5 years in total. thanks to a highly efficient electric propulsion system. the solar impulse aircraft only consumes around the same amount of energy. it takes to power a motor scooter. so it weighs as much as a car and has a wing span as wide as

a. boeing 747, it glides through the air at a snail's pace. just 75 kilometers per hour on the plane at the store, enough energy during the day so that it wouldn't crash at night. the seal to get to that good when it comes to how much energy can be provided. just remember that a single square meter of paneling is enough to power a hair dryer because we have 200 square meters. so the power of $200.00 hair dryers that the sun puts at our disposal ballast at $812.00 days after the start of the journey. the biggest hurdle away to the flight across the pacific. 7000 kilometers driven only by the energy of the sun. 3 fold simple to all the way from all on the way we shoot all the best and up sort of great slides. i really move the 12 hours into the flight. horsberg and the team performed the last

safety check from this point on over the pacific, there is no turning back. and with the check comes a shock. the system that monitors the aircraft auto pilot isn't working. that means the system that keeps an eye on things about the pilot sleeps is faulty. if he continues to fly, his life is in danger. we are in the most critical moment about the project so far. you know, to do this because one of the discussion on the ground was then did we fly on and risk the pilot slide and that's a very important factor. or do we take the easy way out? we could still turn back. so let's live back to indigo. yeah, in the home can seem good, so it's not, not going on from the engineers point of view. the situation was clear turnaround and repair the plain. if andre bore spec wanted to keep flying,

he'd be up there on his own. but together with baird tron p card or spare, decided to ignore the advice and keep going able to see what is most emotionally i didn't know if i had the right to do that to my families, i was sure they were going to be very worried. i told you that i have the right to subject them to that stress, especially my wife should do when it was the pilot flew past the point of no return. then there was more bad news. the batteries were no longer charging properly for boy spare. the situation had grown even more critical faulty batteries, no auto pilot. he turned to meditation to calm himself down. that is because that was the fear loki anxiety related stress sauce. it's huge and situations like to have symbol, but if you've prepared well, then you can suppress it a bit. i meant something to the quote, the force bear colds out and the sun provides the necessary energy.

after 4 days, 21 hours and 50 minutes of constant tension. he finally glimpses the lights of honolulu, a magic moment for everyone involved the milestone in the history of aviation. the scene, honolulu, it took several months to install new batteries in the solar impulse, but then it took to the air again, uncompleted. the 1st round the world slide to the solar powered aircraft in july 26 . the electric aviation has made big steps forward. since most e plane designs charge the batteries before takeoff, ideally in the future with electricity from renewable sources like that, produced in a special set of the punk in portugal. it's quite

any delicate units, largest human need, west of why the okay them on the border between portugal in spain, in the south west and part of the ibm peninsula. there's not much else here. the confidence launches floating, so the power plant looks almost lost. it can only be reached by boat to so it put allen, everything about this facility is special. you guys like more, the innovation everywhere. which kinase the photo baltic panels themselves are conventional much applica. so in how they're set up in a floating fluctuating environment. if that's what makes this project so special, this project? $12000.00 solar panels low. so really here on full heck to as a full tank. here's how it works. sunlight, phoning on the side of the panels, creates an electrical voltage between the front and back of the cell that allows

the energy from the sun to be converted into a tricity. it's been transmitted to the dams power generation system through underwater cables. apparently it can be fed directly into the electrical grid that's already connected, that it's a hybrid system. so there's just some doors formed. there are 2 renewable energy sources and play hydro power and solar power using inc or e. they're generated together at the same time, and so i had gotten their energy is fed into the power grad at the same connection point. the hydro power plant alone doesn't fully exploit the potential of the power lines we use. electric is floating, so the power plant is expected to produce 7.5 gigabyte hours of electricity per year. enough to supply around 1500 families. in portugal with green energy, any step to select tricity will be stored in bunk changes at the power plant to pick up the slack doing cloudy periods. the hydro electric power plant has been

connected to the electrical great for a long time. and a floating soda power plant has a low impact on the environment. the land based solution would have. if you compare these with centralized solar with, you know, $1000.00 x r as in the mountain or in the forest the, the area in, uh where uh, not only the landscape but also the eco systems might be effected. this is clearly a much better off to, to go ranks very high in unit when it comes to the portion of renewable energy in the politics with lots of sunshine state. he wins around $260.00 times. the country has many options for catching fossil fuel use. let us read, why are they now able to you? do you have a science question? send it to us as a video, text or voice mail. if we don't see your query on the show,

we'll send you size as the same key. the scale on just ask this makes question comes from mike and teresa see from the us if the sun were to suddenly disappear, when would the earth leave its orbit? albert einstein was fascinated by gravity and how it functions with a mass around $333000.00 times that of hers. the son dominates, gravitational matters in our solar system. the many celestial bodies that make it up revolve around the sun. i am starting described how gravity works and here's the theory of general relativity. it says that heavy objects warp space time with its

a nor mismatched the sun bends. it's so much that the planets begin to move in a curving orbit around it. just like the moon does around new york, i'm starting also show that nothing can move faster than light. it rips through space at nearly 300000 kilometers per 2nd. according to the great physicists theory, gravity propagates at the same speed. researchers were able to prove this in 2015 after decades of trying, they were finally able to measure gravitational waves for the 1st time, the earth orbit. the sun at a distance of about 150000000 kilometers. it takes just under 8 and a half minutes for its light to reach our planet. surface one were to suddenly disappear. we wouldn't know about it on earth until about 8 and a half minutes later. then the sky would suddenly go as dark as the deepest night.

because gravity also travels at light speed. yours would also leave its orbit at that moment and begin whizzing through space at 30 kilometers a 2nd illuminated only by the light of distant stars. in the far future, who knows, maybe gravity from one of them would then pull in our orphaned planet. how hard is it actually to design a roku table to reach space? many nations and companies are currently known she and one mission off to another, to the moon mazda rather planets. aerospace engineering students at one gym and university enjoy a unique hands on experience when it comes to learning about rocket building challenges. how to is it come to the spending of cost attention grows higher and higher, the closer you get to the account down onto the real start. the slide

was the thought of i o, it's very long days and short nights. but i'd say every 2nd was worth it, the state and everything, and i didn't remember any other moment in my life with such attention at the motion along with such positive feelings. julian indira philip an over 60 other aerospace engineering students which took got university have a clear goal to develop a rocket that could reach space on it. so they came up with a hybrid rocket propelled by solid and liquid fuel, the t name, high end hybrid engine development. the other, we all started more or less from scratch as students learned a lot good tests, toys, and all the things that then grew. my power shoots made an engine tested, it made the structural pots with common, spoke to tie them and those kinds of challenges that got the associated goals for

the whole. generally the experience was that you can do things. yeah, you couldn't do otherwise. mich, michigan, couldn't stop them and find, well, i think it said it was hard to imagine that a student program could just go beyond the boundaries of university like this one of them we were really in a workshop day and night finishing stuff up. so to developing testing, building it was very, very challenging to stay involved because there's a whole spot on in the end it would take more than 3 years to construct a test and rocket system. some tests were run over and over again, like those on the engine. oh, the self. so in parachutes that would have to deploy to ensure the rocket safer to into of of the team also managed to successfully launch smaller tests, versions of the design, the,

the beginning of march 2023 crunch time is the big launch approached. the students efforts have to pass muster with space experts that independently developed a setting meter, long hybrid messiah just been off to make them understand. i'm very excited and stressed. and of course i'm really glad. well now get confirmation for a launch. oh, so for the final configuration on that we can start putting seems. alyssa, will do all we can to at least scratch the edge of space inside the rock. it has to post safety inspections. the gym and aerospace center supervisors. the real good program for students. we find that it's approval the planned, launching corrina renewals and sweden won't take place from expense. i don't currently see any sticking points that would stop the launch. we'll discuss everything as a team later,

but at the moment everything looks pretty good. honestly, it's a stressful time for the high end team. the aerospace experts want to know about everything from the control and the chronics installed and the rockets nose code to it's comp and find the fuselage. the questions are extensive, grueling, and tough. busy stop soon, because i think projects like these are also a way to get more students and young people excited about stuff like the ice done. if you have a thrilling project that pulls you in, then people come and are highly motivated to implement the whole thing. this can solve some of the time for the decision on whether the team can continue down the path from theory to practice. that's what the rocket acceptance review has pads you basic. so you have to go for the campaign in corona it's a huge hurdle for the students to clear. many have worked on the real, keeps the 2 more hours a week for years on top of the studies. that's when we get students to complete the

free writing, they organize things. and you see that projects can actually be implemented successfully 6 weeks later. but you are as rain space sends the inquiry sent to the cation in hand. the high end team complete the construction on to hyper drawer kits, transported them to northern sweden and is preparing them for launch. they have both will make it at least to the edge of space, an altitude of at least 100 kilometers. at the end of april, the countdown is on the moon. she's a 6th sense by the one with the 2 we were really intense. yeah, we had to work well together as a team who to ask for. i was actually surprised by the positive vibe. i guess we

got a lot of praise the working very professionally to come. this was a profit scenario at all and that's just one reason i'm so proud of my team. but it's been the power sheets. what the rockets are recovered. unfortunately, they didn't reach space, but at least they set a new altitude record, the student build hybrid real kits, just under 65 kilometers the months after the campaign in carina. what's left at the real kits is back in still got the idea of the going to unpack all the pieces and looked at them all again. because that's also part of this project. finding out what worked, what didn't, and why everything didn't go as planned. it was on site, this is on uh 2nd flight and normally i could find some were still trying to figure out exactly what happened is on the 1st launch we recovered the complete rotate on

the 2nd mission, just a tank among other things. indira eulley and philip and the other high and team members will now precisely mitchell and i'm elias, how they rootkits, reacted to temperature, pressure and vibrations. so the learning continues. it doesn't. so to my new governor, we built a rocket by and i also studied a little on the side kind of, you know what, i don't have an exact number in my head, but i can't remember a day here. instruct god where i wasn't in the rocket lounge and i think it was worth it. the the student rocket program supervised by the gym and aerospace center. we'll continue the so other teams we will send one day launch self still rockets into space from carina in sweden's finals. the and that

wraps things up this week on dw science show. thanks for watching and see you again . next time on some more a today the the

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this is dw news live from berlin. the us launch has airstrikes on targets in syria and the rack. the rates and a pro he run militia come in response to the killing of 3 us soldiers in a drone attack on a base in george last week. also in the show, israel is military prepares to move its casa offensive, further south towards rough up and some off of leadership ways. the terms of a proposed 6 weeks. these fire the .