and i am ready to dive into the hands of the gentleman who 2 of you have you have a one to talk to me before you go to the boss on the on expected side to side. enjoy the out of the $225.00. witness of the nobel prize in physics just fine for women. in fact, women under represented generally in the subject in western countries in particular, there were found fewer female physics students, and research has been mailed out to you get goals interested in physics perhaps with an exciting experiment. welcome to dw science shape, the

. the object that's crushing down here comes directly from the structures fair. it's the results of months of preparation by students that this old goes high school in southern gemini, a few hours earlier, final preparations are on the way. so the experiments, it's a joint project between the school and cosmo is university of education. the aim is to launch a high altitude weather balloon with a measuring crew into the stratosphere. everything's being planned and built here and includes some age appropriate prompts. as we've started the chocolate marshmallow on that with super glue so that we can see how much it expands in the yeah. with the emphasis on practical work makes the landing relaxed, almost effortless enough later on in his own a weather balloon. probe a power shoot. it's really swelling, so i'm very excited now. tense, i toss fund. i found it really exciting the topic. and what's it looks like up that

and what will happen to the pounds when they're out there. and how much are you going to say? i've always been interested in once it looks like up that what the us looks like from above to yet assess it kind of fascinated me, i think going to move this kind of top. everything's assembled full, measuring devices around board, the gps track, a working time for a final check for insurance reasons, the pro mist way, no more than 2 kilos. the experiment has a further purpose beyond the obvious how to get goals interested in physics and how to make teacher training and science subjects. interesting with more practical experiences on my list to them please respond customer. what we've learned most is how much fun it can be off in the gums, the gums, noisy other devices in a really curious way. what's interesting to us. yeah. and then approach the physics that we need for that is it, the math is inductive. awesome. and kind of a kid we're not doing well, keeps science, is we doing an educational project?

and at the same time we're learning about the composition of all right, ms. vega. i'm perhaps also how unique this planet is that we're living on right now . and then regarding the university students have helped supervise the peoples as a full and the physics is so relevant to everyday life out of talk also in situations . but she don't yet know, perhaps don't even think about the thing spot in the, in the exciting thing about physics is that many people don't realize that it surrounds us. had virtually every moment at the launch. it's clear that this is all about physics, the, the pressure is on 5000 liters of helium. and the whole school watched countdown time the balloon rises rapidly. soon it's no longer visible. and

then people, students, teachers, parents, the chase is own land very exactly about that. then the gps transmit to temporarily fails, is the pro last time in newton's in the balloon is full cost to land in a nearby town with this noise. that's all the blueness mandate that they're in the tree at the top left. the slate. did it guys the victorious ending? what's about the house the most? my dad is next a bit small. the highlights, analyzing the camera footage the

. how does that so cool, really cold desktop the radiation measuring device has had enough because too much radiation. mm hm. that's what was the pain. yeah, yes, it reached its daily maximum dose. from the best. i find that in physics you just discover things that i don't think you really teach it. you experience it yourself and that's what i think we did today on the i'd say we achieve what we wanted to achieve as the pollutant maintenance stuff. a few weeks later, a debrief, obtained altitude. 34602 mates has a 2 and a half hour journey into the stratosphere and a high speed return. when in missile some of the measurements what 12 others less.

so that's just how it's used in physics. we're still working to save a couple of the day to set in today. we evaluated what we already have a minute. let's do that. we have on this one, we were a great, great and had fun. we were interested in the solve the task force we were given really well, just a time go to printers, which just shows that education can be simple when it's fun. facing trouble is another male dominated environment. to date, just 12 percent of our students have been women. and yet to study by the european space agency reveals that women a fallback to suited to space travels and mat. they have more efficient metabolisms and consume fewer resources. including space pools on demand o l v e from mexico has sent us an interesting question about that topic or

how is it possible for astronauts to do space books or working outside a station or vehicle in space is by it's difficult and dangerous. it's extremely cold where the i assess obits and there's no human beings would perish after just 30 seconds out. that astronauts can only survive in space wearing special seats, which are effectively like small spaceships. a rock sank, supplies them with add to breeze, and to say removes exiled carbon dioxide. the seats have several layers, they need to be gas tight and with stand excess pressure. the outlet is made of fire retardant. catalog coated with a menu. the suits protect against the vacuum as the cold, as well as mike cray, meteor writes, and solar radiation special underway with tubes through which cool water flows prevents the asper notes from overheating during best strenuous work as to trains

of space missions in special swimming pools like type is that more than $100.00 killer heavy suit substituted with whites, which allow them to select corresponding to the conditions in the international space station is a waiting list environments. this is because it will bits the so fast that centrifugal force of gravity balance each other around. it travels 7 kilometers per 2nd, the, the asteroid, some losing at the same speed. but they didn't notice it. physically speaking outside the station there in their own little bit, even a tiny cush lives meant to come to this little bit and cause them to drift away. that the up guess that i still have already lost the they wouldn't be

able to return on their road. that's why cool extra notes that tended to the spacecraft at full names. in 1994 nessa tested special get backpacks. these would develop submissions were asked to notes, have to move far away from the spaceship. for example, to capture stuff to the lights, the in an emergency astronauts could ignite this thrust as to stabilize that position and then return to the ship the during extra the hit killer activities, only i assess astronauts a secured with 2 testers. these lines of attached to poles and candles, which the astronauts used to move around when they change position, at least 110th mis ways be attached to the long distance is the ask, you know,

so, so tulsa on the right bus, take home to the deployment science special platforms for that fee to help them securely in place. 95 we low phones are in your questions. do you have one it so you send it to us as a video, text or voice message. and if we don't switch on the show, we'll send you a little surprised as a thank you to come on. just ask when it comes to choosing an apprenticeship in germany goes to pick it up to train is assistance and the business or medical sexes. boys tend multiple tobacco products will become electricians. career choices are still very much shaped by stereotypes, but it doesn't have to be the way a step and prefers action instead of tools and doesn't want to go to university right now. she belongs to the generation campaigning for climate protection, but that's not passing. she wants to learn practical skills to protect the climate,

the costs of providing drinking water treatment, water softening systems that sol positive, our job. and so we might even have a drinking or to show, teach in the future. so how can we use raymond wheeler and all that's at school? i'm practically to on the construction site. there's plenty of, you know, there's definitely something to be gained from taking to the streets. i'm all a full bathroom, but i'm the kind of person who prefers to create solutions with my other times in the shop. most of us today, the 18 year old is 15 ventilation pipes so far her favorite aspect to the what because being in customer service, she enjoys educating people, advising them on climate friendly technologies. this is mine. i'm training to be a fun mechanics assignment tree heating and air conditioning. that's the full name on her instruct to boost and you see shows us the main heating way it's about with the latest technology. does that spring came with a storage, right?

no, that's the buffer time kits. different. yeah, a foot plan to go talk grades at high school, finished and fall off. she's chosen this male dominated profession because she wants to make a difference. ready so i'm on to, to even do something for the local environment and that is if the guy, that's the right attitude to the right. if you can do something yourself on the sites, don't expect others to do it for you. the tech is always developing and this is the next generation. so it's very important. it's that. so this is every stage. her commitment to the climate has grown. in the 11th grade, she wrote the physics paper on the side table text and fell in love with renewable images. she's being fascinated by the subject of a sense, spending session in those 4 would be that right now, construction site, since those being supplied only with heat generated from the ground and does a young person, it's so amazing to see that you can get heat energy from sources other than fossil

fuels to come, but it makes you really have pictures of the month parts and stuff about parents that makes a proud of that door to end the path she's chosen well, the is to be less supportive with their thoughts, much of a less my, maybe i'll become a mazda trades pass and spoke to a degree of friends gets it, i'm going to find the most of my friends are studying, but they're actually quite positive about to, to they usually say, okay, i wouldn't want to do the job myself. but we do need people who do so this, this has built this well to the point where we have no option but to can. now, if i've done just chosen a profession to which she can make the world's best to place the ventilation systems like those the 8th of planned works on becoming increasingly important. the career and a virus pandemic made many of us aware of just what can collect and not into

on keeping in those spaces. well ventilated is so vital. an ad quality measurement campaign as an elementary school in switzerland is a way to go, you know, into team from the school of engineering and architecture in sleep with our in storing senses for potentially has to just add pollutants both inside and outside. the data collected from around 25 switched schools, shows a clear problem with the quality of the this is the case in many buildings where people spend time together was all to be sick. we now know that the variety of pollutants is found in indo ac and have a significant effect on our house. the monopoly ones pollutants has already clearly

demonstrated this corona virus. it wasn't so long ago that students were sitting in school classrooms with the tools and windows, and several studies showed that there were 5 few infections in well ventilated rooms. they didn't pull the ventilated ones. the pandemic put at quality firmly on the agenda. i'll send you definitely the, the can you send through that into at quality was suddenly a token point student javion. unfortunately, since then, people have phone and back into old habits and the lessons learned from cove it. and now having little effect, wonder if it was all the ventilation behavior is now knowledge the back to us. it was before the pandemic, and yet people typically spend 80 to 90 percent of their lives in those schools can house a high level of pollutants in addition to viruses? c o 2 often accumulates and then, and then with fine dust mode, schools and different chemicals in many parts of the world. radon is often also

present or radioactive gas semitic from the at the resulting mixed. you can be bad for our house, invisible and potentially responsible for diseases such as asthma and cancer in the long term to let it go, yet pen no sees an urgent need for action. in 2023, the arrow biologist attended the w. h chose 1st indoor at quality conference in them, switzerland. it same was to raise awareness and bring decision makers and massages together. that message was clear. visualize in the visa make in durham are visible. when i go to the ball, it was to me all into twain buttons, subject consultation. i need to know is it an i was safe or not? so i need to see that visible at the conference. the indoor at quality was also a message encouraging room temperature, humidity, and c, o 2 levels of them,

not toxic and high concentrations. c o 2 can impact wellbeing and the gas is also an indicate of of pathogens. if it exceeds a certain amount, an infection becomes more likely as yet the a no binding limit of values for c o 2 or other pollutants about the w h o is developing recommendations. and then decision makers, either at country or international that those are using them to set standards in mind, there is a component of the responsibility of the state of decision makers. you said regulation sidney loudly as we have a right to clean water. we also have a right to breathe clean and we might not, and we should not come from ice on. that's right. and kind of the centrally pure

thought i'd like to in every building, even every we should be equipped with systems that accurately measure toxic public tips as well as c o 2 and which ideally automatically exchange yeah. for example, via and mechanical ventilation systems. these need to be properly adjusted, but that's not always the case as the study for what reveals to all that goes out of 11 schools studied almost all ventilation systems have very different values, even though they have the same purpose named me to ventilate classrooms of similar sizes with similar numbers of students in oval don't fall on top of this, even well maintained ventilation systems make the very dry, especially in winter, an ideal environments. a virus that sees what programs you succeed, you have to find the right balance between ventilation and moisture recovery to

limits. infections, especially viral infections that there's nothing strong and not the motion. and if you have windows that can be open. it's a good idea to add rooms regularly and extensively to the exhibits and museums that typically protected from environmental damage by being kept in display cases. but the air within these can itself pace of risk. now reset to the testing out to surprisingly simple solution. the festa code book fortress complex in bavaria boasts of valuable glass collection, including unique's red glosses from the renee songs and precious cloths where from the 16th century the collections conservatives have done everything. they can to preserve these treasures, which it's most enough display of drinking glass contains fine. mike cracks is this

clause is this cost is about a 150 years old and it's being damaged by formaldehyde. this is, this is one of the main guesses that we have to contend within the museum wells. this damage is caused by the depletion of substances that dissolved out of the gloss resulting in these micro credit. just curious to know some floss and others interesting to me cause i said, what's challenging is that the home full substances are in the arrows. the display cases, they come from a t sips, for example, or textile coverage. now, scientists from zoned on to university of come up with a simple way of killing the pollutants by using salt solutions. these are made up of water and various thoughts like potassium carbonate or potash desantis. this because i think this as will depend, is the salt solution, such as potassium carbonate to be placed discrete in display cases off the should then absorb pollutants. so for a long period and protect the exhibits. acetic acid,

gas is a pollutants that can damage museum exhibits, or if i please choose colleague, want to show how potassium carbonates can render this homeless. the tube of all this represents the meaning showcase is the one on the right to contain means the potassium carbonate salt solution. the one on the left contains via as soon as the a c take, nasa gas is injected. the gas concentration in the patrol is rises. right, and the buffalo with the salt solution, flew in the bottle containing time. then it's time to wait a few minutes. but it's interesting, i'm sure you can see quite nicely here that within 2 minutes the potassium carbonate has taken most of the a c take acetate out of the demo victory here in the example below, you can see that the casting is still in the yeah, leaving it to damage the exhibits. so how does it block the polluting gas flows

into the mini between the attractive forces and the water molecules drew a large number of a c to acid molecules into the salt solution. the potassium carbonate vendors, many of them homeless through a chemical reaction. this leaves space in the salt solution for more as a whole gas, which continues to be attracted to some of the a c to acid molecules escape and turn into a gas again. but then the drawing back in overtime, the process comes down, then almost all of the home for gas is dissolved and the liquid and no longer poses the risk. the next step is to place the salt solutions in display cases at over 60 needs in the festa. co book is one of those museums, keen to put the salt solutions to the test. the museum is a special case for the past 2 years. it's been using a salt solution will be its magnesium, chloride,

that smells effective against pollutants such as a seat to cast a tow formaldehyde no has not been massaged, but it is against damage caused by moisture in the display case at 1st. okay. how do you face moist? it has the ability to drill components out of the glass, or if you don't do anything about it over time, the cracks will run through the entire loss and can cause it to for the pot to end of class. we'll send a method to avoid this. the humidity and the display cases must stay at a fixed level, something the magnesium co ride previously insured is very human. death flows into the display case and some of it reaches the magnesium to ride salt solutions through the cracks. a large number of water molecules, a tube from the yeah, into the salt solution. the add becomes dryer until this a constant humidity of 33 percent. if the air is very dry,

winter moisture levels drop in the case, then many water molecules evaporate until the humidity with tons to 33 percent. a simple and effective regulation system. now i have a flush, a lot of things. however, recent research has shown that 33 percent is actually false, too low, especially for unstable and sick class to. so we looked for other salts that could keep humidity at around 43 percent, and found potassium carbonate could do that. it's much better to sit gloves you best so. so potassium carbonate solution can rent a damaging gas as homeless and also insure constant humidity. this is important for many exhibits. the salt solution is also easy and inexpensive to produce, making it perfect for small museums with limited resources. heineken eve is now replacing the museums, magnesium, fluoride solutions, with new ones made from potassium carbonate. he's came to from down. what does the

optimum humidity level in the display case? really remain stable at the moment? humidity is that 69 percent decides it's over the next 6 weeks. the potassium carbonate should reduce the relative humidity to 43 percent and connected to 4 to 6 weeks later. the humidity in the showcase. uh is it a constant? 42 percent with us and that's a super result. the way more than happy with it doesn't get any but has a nice to ensure that the display case choices are preserved as well as possible. 38 museums in germany and 24 across europe. i'm the us and now testing the sold solutions, the sunset from us this time on dw science. i thanks for joining us. see you again soon on tomorrow today. today

curious the

the the ice code. at the end of the plastic, i need an expedition ventures onto glaciers, but no one has to why is the ice melting more rapidly in the ice fields and past the shopping of the w. b. i own health advocates by turning into your own ex,

the where your country without any fiction. and with no surprise, be active, the way in good shape. 30 minutes, 0 d, w, the, the coming 0 strange excels 3 trans people. stories off my right amount of size, she didn't know if you need or dean leslie into here and i wish i could list the kind of items are feed us complex doors to have 5 each kind of main district supplies. and she does portfolio pieces sometimes. so the silver chip, no,

because i trust the number keeps you because there's only 4 to technical turns 3 generations. one, jenny starts july 7th on dw, so you don't feel the same way you expect and want different things from life than your parents do. i just want to pursue what sets my saw on fired or you think your kid is 2 different risk, irresponsible, unreasonable, or something? port is not. i wonder what's under the doctor? is there an alternative plan? we've done everything to prevent a divorce, but nothing works. so in the it's time you were as we ask them when generation

now on the computer screen, this is kind of fun. it feels like there's the rate the this is dw news and days around top stories. thousands of protest is have attempted to disrupt the annual conference of the fall. rise alternative to germany. policy in the waste in city of s and scuffling with police demonstrate has tried to stump delegates entering the vin. your police said thousands of officers were injured and that several people had been arrested rainy and will return to the polls for a run off presidential vote next week. often none of the candidates secuity majority in the 1st round or for most, most.