food charge as well, so i can flip stuff, but also when it comes to sustain dependency information and trend texted on d. w, travel, you can have it wherever you, what's your opinion, feel free to write your thoughts in the coming out of the 225 windows, if the nobel prize in physics just fine. so women, in fact women are under represented generally in the subject in western countries in particular that were fond, few of female physics students and 3, such as the male. how do 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 at this old goals 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, with the emphasis on practical work makes the learning relaxed, almost effortless in the bottom line is on the whether the noun prob, a power shoot. it's really swelling, so i'm very excited now. tense, i toss fund. i found it really exciting the topic. i'm what it looks like up that

and what will happen to the pounds when they're up that the shooting been posted. i've always been interested in once. it looks like up that what the us looks like from above to me, it's just, 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 of 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. and with more practical experiences on my list to nancy's responses from what we've learned most is how much fun it can be authentic. i'm 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 zip nappies at the football mountain. kind of kid, we're not doing what 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 how, oh so how unique this planet is that we're living on right now? and then regarding the university students have helped supervise the people's as a full lead 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. eventually, 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 watch countdown times the balloon rises rapidly. soon it's no longer visible. and

then people, students, teachers, parents, the chase is own on atlanta very exactly about that. and then the gps transmit to temporarily fails, is the pro gloves. i mean, 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 did it guys the victorious ending? what's not the house the most? my life that is next has been small. the highlights, analyzing the camera footage the

the that that's also cool. really cold and stuff because the radiation measuring device has had enough because too much radiation. mm hm. that's what was be paying now. yes, it reached its daily maximum dose from the desk. 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. and the coming out of them. i'd say we achieved what we wanted to achieve as the maintenance shop. a few weeks later, a debrief, obtained altitude surgery, 4602 meters, a 2 and a half hour journey into the stratosphere and the high speed return. when in missile

some of the measurements what well others less. so that's just how it's used in physics. we're still working to save a couple of the data sets in today. we evaluated what we already have. so they're going to ask about the tool and we were a great, great, and had fun. we were interested in the solve the tasks we were given really well set time with good news, which just shows that education can be simple when it's fun. place trouble is another male dominated environment. to date, just 12 percent of my students have been women. and yet to study by the european space agency reveals that women of fall back to see to, to space travels a man 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. how

is it possible for astronauts to do space books are working outside a station or vehicle in space is by it's difficult and dangerous. it's extremely cold where the i assess little bits and there's no human beings with terry shelf to 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 also removes exiled carbon dioxide. the seats have several layers, they need to be gas tight and with stunned excess pressure. the outlet is made of fire retardant, capital coated with a menu. the suits protect against the vacuum as the cold, as well as mike cray, meteor rights, and solar radiation. a special underway with choose through which cool water flies prevents the aspirin notes from overheating,

showing that 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 flight 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 and gravity balance each other around. it travels 7 kilometers per 2nd, the asteroid moving at the same speed, but they didn't notice it. physically speaking, outside the station there in their own little bit. even a tiny push movement can h at this old bitch and caused them to drift away that the up guess that i still have already lost

they wouldn't be able to return in that room. that's why the extra notes that tended to the spacecraft at full dreams in 1984, no said tested special get backpacks. these would develop submissions where astronauts have to move far away from the spaceship. for example, to capture stuff to the lights, the in an emergency astronauts can ignite this trust is to stabilize deposition and then return to the ship the during extra the hit killer activities on the i assess astronauts as a kid with 2 testers. these lines of attached to poles and candles, which the astronaut seems to move around when they take change position, at least $110.00 miss ways be attached to long distance is the ask, you know,

so, so called the on the right book, take home to the deployment science special platforms for that fee to help them securely in place. 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 off 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 demeka tronics 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

. pulse of provide drinking water treatment, which is softening systems, not so positive our job. and so we might even have a drinking or to show, teach in the future. so how can we use ramos? we learn all that's at school. i'm practically to on the construction site. is quite a few and there's definitely something to be gained from taking to the streets. i'm all for that, but i'm the kind of person who prefers to create solutions with my other times. and each of us today, the 18 year old is fitting 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 we get to that with the latest technology. so that spring came over to storage. right?

no, that's the buffer time gets different. yeah. a so i 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 to, to even do something for the local environment and that is direct you guys to, that's the right attitude, right? if you can do something yourself on sites, don't expect of those to do it for you. the tech is always developing and this is the next generation. so it's very important. it's up to you and this is every 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 ever since. spending sessions on the phone will be that right now, construction sites, and 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 up. but of course it makes you really have pictures of the one part of the stuff about parents is that good? that makes a proud? is that door to end the path she's chosen? well, the is to be less supportive with their thoughts, much of a select my, maybe i'll become a mazda trades pass and spoke to a degree of friends gets it. i'm gonna find the most of my friends of studying, but they're actually quite positive about it too. they usually say, okay, i wouldn't want to do the job myself, but we do need people who do so esna's says go as well to the point where we have no option but to can. now, if i've done to is 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 in a virus comes out make, make many of us aware of just what can collect to not endure and keeping in those

spaces wells and selected is still vital. an uh, 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. what are in storing senses for potentially hazardous pollutant space 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 which will be sick. we now know that the variety of pollutants is found in indo ac and have a significant effect on our house. the ones that pollutants is 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 rims . they didn't pull the ventilated ones. the pandemic put at quality firmly on the agenda. i'll send you definitely do that. can you send to them into at quality was suddenly a token point student javion, unfortunate base. 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 pumps of dwelt. radon is often also present or

radioactive gas submitted from the at the resulting mixed. you can be bad for our house, invisible and potentially responsible for diseases such as asthma and kemp. sit 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 to get the the message was clear, visualize in the feasible make in durham are visible. when i go to the ball is it was to me all into twain buttons, public transportation. 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 measured encouraging room temperature, humidity, and c o 2 levels. although not toxic and high concentrations,

c o 2 can impact wellbeing, and the gas is also an indicator of pathogens. if it exceeds a certain amount, an infection becomes more likely as yet there 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 and then those are using that 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 compromise on that. right. and kind of the centrally pure thought,

i'd like to mention 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 system that have very different values, even though they have the same purpose from namely to ventilate classrooms of similar sizes with similar numbers of students as a normal default. to me that on top of this even well maintained ventilation systems make the very dry, especially in winter, an ideal environment is a virus that sees what over how's you succeed. you have to find the right balance between ventilation and moisture recovery to limits, infections,

especially viral infections. to this i fix you on 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 pays of risk. now reset to the testing out a surprisingly simple solution. the festa code book full access 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 content within the museum wells. this damages caused by the depletion of substances that to dissolved out of the gloss resulting in these micro credit was curious to know some flaws and others. interesting. because i said, what's challenging is that the home full substances are in the air of the display cases. they come from a t sips, for example, or textile coverage. now, scientists from solange university have come up with a simple way of killing the pollutants by using salt solutions. these are made up of water and various soaks like potassium carbonate or potash plants and stuff. because i think this as will depend on this, the salt solution, such as potassium carbonate to be placed discrete in display case in the should then absorb pollutants. so for a long period and protect the exhibits

a c. take gnostic gas is a pollutants that can damage museum exhibits or if i believe gotcha is colleague want to show how potassium carbonates can render. this homeless. the tube of folders represents the many show cases. 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 rises right in the bottle with the salt solution. flew in the buffer containing time. then it's time to wait a few minutes. let's just take, 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. in the example below, you can see that the casting is still in 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 acetic acid molecules into the salt solution. the potassium carbonate mendez, many of them homeless through a chemical reaction. this leaves space in the salt solution for more as a home full 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 backend over time the process comes down. then almost all of the home full gas is developed and the liquid and no longer poses a 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 it's magnesium,

fluoride that's most effective against pollutants such as a c to cost they don't formaldehyde. no, it has not been massaged, but it is against damage caused by moisture in the display case. at which kite had the fish 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 full upon doing the glass of some of it. to avoid this, the humidity and the display cases must stay at a fixed level. something that magnesium co ride had previously insured is very human death flows into the display case in somebody. it reaches the magnesium fluoride, salt solutions, through cracks. a large number of water molecules are solved 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 if operate until the humidity returns to 33 percent. a simple and effective regulation system now 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 celts that could keep humidity at around 43 percent, and found potassium carbonate could do that. it's much better to sit gloves fewer best so. so potassium carbonate solution can rent a damaging gas as homeless and also ensure 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, chloride solutions, with new ones made from potassium carbonate. he's came to from down. what does the

optimum humidity level in the display case that really remain stable at the moment? humidity is it. 69 percent decides is, is over the next 6 weeks, the potassium company should reduce the relative humidity to 43 percent and connected to 4 to 6 weeks late to the humidity in the showcase. uh, is it a constant? 42 percent? that's just and that's a super result, the way more than happy with it doesn't get any, but it's a nice to ensure that the display case choices are preserved as well as possible. $38.00 museums in germany and $24.00 across europe and the us. and now testing the sold solutions, the pump set from us this time on the w science side. thanks for joining us and see you again soon on tomorrow today. say curious,

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the, the good morning and welcome to my a parsons and amsterdam meet cosmo plugged arch 19 year old the amsterdam through his daughter. let's learn about how kinsey views life in this mr. demons, stephan, it's in my home. i feel very at home here. i don't want any young european amsterdam. the mice was shaped by anti semitism and a part of weiss,

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