stillman to the q one, you have, you have a one, the front porch and the unexpected side to side the 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, there were found 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 for 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, the emphasis on practical what makes the learning relaxed, almost effortless in the bottom line is on a weather balloon. a probe a power shoot. it's really swelling, so i'm very excited now. once i talk to fund, i found it really exciting. the topic was it looks like hope that i'm what will happen to because when they're out there hasn't been to say,

i've always been interested in once. it looks like up that what the us looks like from above to me, it says it kind of fascinated me. i think going to move top last time that everything's assembled full, measuring devices that are onboard the gps track, a working time for a final check. for insurance reasons, the pro must weigh 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. and my mom that command please response of what we've learned most is how much fun it can be authentic. i'm it comes no idea. 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, we're not doing well keep science, we're doing an educational project. and at the same time, we're learning about the composition of all right, miss fair. i'm how, oh,

so how unique this planet is that we're living on right now? and image i didn't even the university students have helped supervise the people's fault and the physics is so relevant to everyday life out of time. also in situations which you 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 loan. she, it's clear that this is all about physics. the, the pressure is on 5000 liters of helium. and the whole school watch countdown time the balloon rises rapidly. soon it's no longer visible. and then people, students, teachers, parents,

the chase is own on the atlantic direct exactly about the symptoms. then the gps transmit to temporarily fails. what is the pro last time in the balloon is full cost to land in a nearby town. what's 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 last month, the house, the most, my death is next. a bit small. the highlights, analyzing the camera footage the

the that that's also cool. really cold desktop 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. does come with us or i find this 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 maintenance of the 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 12 others less. so that's just how it's used

in physics. we're still working to save a couple of the data set just in today. we evaluated what we already have, so they're going to ask about the assignments when 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. face 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 the women of fall back to suited to space travel. for many 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 or working outside to station a vehicle in space is by it's difficult and dangerous. it's extremely cold where the i ss little bits 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 rucksack, 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 stand excess pressure. the outlet is made of fire retardant. catalog coated with a menu of the suits protect against the vacuum and the cold, as well as mike cray, meteor writes, and solar radiation special underway would choose through which cool water flies prevents the asper notes from the heat seem during this strenuous look as 2 trains

of space missions in special swimming pools like type is that more than $100.00 killer heavy suits substituted with whites, which allow them to flight corresponding to the conditions in the international space station is a waiting list environment. this is because it group, it's the so fast that centrifugal force and 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 push movement can alter 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 on that road. that's like extra notes that tended to the spacecraft at full dreams. in 1984 nessa tested special get backpacks. these were developed submissions were asked to notes have to move far away from the spaceship. for example, to capture satellites, the in an emergency astronauts can ignite this thrust as to stabilize that position and then return to the ship, the cheering extra, the hit, killer activities. only i assess astronauts to secured with 2 tethers. these lines of attached to poles and candles, which the astronaut seems 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 sites,

special platforms for that fee to help them securely in place. we low phones are in your questions, do you have on 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 funky to come on. just off when it comes to choosing an apprenticeship in germany, goes to pick it up to train is assistance in the business or medical sexes. boys tend more towards mca 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 testing. she wants to learn practical skills to protect the climate

posts of provide from drinking water treatment, softening systems, not so positive our job. and so we might even have a drinking or to shortage in the future. so how can we use raymond wheeler, an old us 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 a full back, but i'm the kind of person who prefers to create solutions with my other times shop . first 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 is 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. does that stinking with a storage? right? no, that's the buffer time keeps 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 from on to, to even do something to 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 know, the tech is always developing. and this is the next generation, so it's very important because i feel this is every her commitment to the climate has grown. in the 11th grade, she wrote to physics paper on the side table techs 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 by default it makes you really have pictures of the one part of the

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 her, that's much of a select mind. maybe i'll become a mazda trades pest and spoke to a degree her friends got 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 this says both as well to the point where we have no option but to can. now, if i've done to is chosen a profession through which she can make the weld, but best to place the ventilation system, select those. the 8th of planned works on becoming increasingly important. the career in a virus comm, demik made many of us aware of just what can collect to not enjoy 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 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 which will be sick. we now know that the variety of pollutants is found in indo ag and have a significant effect on our house. the postal ones is 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 show that there were 5 few infections in well ventilated rooms. that input events, natured ones, the pandemic put at quality. somebody on the agenda, i'll send you definitely the, the can you send to them in the quality was suddenly a token point student again. unfortunately, since then people have phone and back into old habits and the lessons learned from cove it. and now having little effect one to see what 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 the resulting mix.

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 know, 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, can 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 air quality was also measured, encouraging room temperature, humidity, and c o 2 levels. although not toxic can 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 there were no binding limit values for c o 2 or other pollutants. the that the w h o is developing recommendations and then decision makers either as 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 to says regulations sidney loudly as we have a right to clean water. we also have a right to read clean and we might not, and we should not come from ice on. that's right. and kind of the centrally pure

thought like printing 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, by a mechanical ventilation systems. these need to be properly adjusted, but that's not always the case as the study for free. what reveals to all that good out of 11 schools studied almost all ventilation systems have very different values, even though they have the same purpose. namely, to ventilate classrooms of similar sizes with similar numbers of students in the forcing me to 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 your sticks. if you have to find the right balance between ventilation and moisture recovery to limits, infections, especially viral infections,

fit the fix fuel and the motion. and if you have windows that can be opened, it's a good idea to add rooms regularly and extensively 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 research has a testing out a surprisingly simple solution. the festa code book full interest complex in bavaria, boasts of valuable glass collection, including unique's, right to 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 cra tracks is

this clauses. 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 damage is caused by the depletion of substances, the to dissolved out of the gloss resulting in these micro credit. just curious to know some flaws and others interesting to because 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 zone on to university of come up with a simple way of killing the pollutants by using sol solutions. these are made up of water and various thoughts like potassium carbonate or potash plants and stuff. cuz i think this as will depend on this assault solution, such as potassium carbonate to be placed discrete in display case in the should, then absorb pollutants, say for a long period and protect the exhibits. acetic acid gas is

a pollutant that can damage museum exhibits or if i believe god is colleague, want to show how potassium carbonates can render this homeless. the to postpone this represents many, showcases the one on the right to contains the potassium carbonate salt solution. the one on the left contains v as as soon as the a c take, nasa gas is injected. the gas concentration in the patrol is rises. right, and the bottle with the salt solution flew in the bottle 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 a c to cast it is still in yeah, leaving it to damage the exhibits. so how does it block the polluting gas flows

into the many 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 gas again. but then the drone backend over time the process comes down, then almost all of the home for gas is dissolved and the liquid no longer poses a risk. the next step is to place the solar solutions in display cases that are over 60 museums 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 magnesium, co ride, that smells effective against pollutants such as

a c to cas 8 or formaldehyde no has not been mismatched. but it is against damage caused by moisture in the display case. at 1st kite had the phase moist. it has the ability to draw all components out of the gloves. if you don't do anything about it over time, the cracks will run through the entire loss and can cause it to fall apart to induct of glass of some of it. to avoid this, the humidity and the display cases must stay at a fixed level. something the magnesium co ride had previously insured is very human death flows into the display case and some of it reaches the magnesium fluoride salt solutions through the 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 evaporates until the humidity returns to 33 percent. a simple and effective regulation system. you know, i have a flush, a little have other things. however, resubmit such a shot and that's 33 percent. is actually false too low, especially for unstable and sick class. 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, gloss your 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. high not agree, but now replacing the museums, magnesium, chloride solutions with new ones made from potassium, carbonate,

east came to falling down. what does the optimum humidity level in the display case, a 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 6 and connected to 4 to 6 weeks late to the humidity in the showcase. uh, is it a constant? 42 percent dust and that's a super result. the way more than happy with it doesn't get any batches of mass to ensure that the display case treasures 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 pump set from us this time on the w science side. thanks for joining us and see you again soon on tomorrow today. stay curious,

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my grandmother emigrated to presume at the age of price as well. i know what makes it that fine to the under the account. i come from the, from the disability and was a journalist in germany where my ancestors emigrated from. i would like to take you on the journey. i have 200 years of time and immigration and deserves to get a film dialing. moyer and zane in 30 minutes on d. w. the surrounded oak trees and today used by day by night and over the full season. natures great,

adaptive and living sea to europe of trees. gold, jenny reset on d. w you might see me. how much can we do simultaneously? multitasking these, the modern methods. because if we do too much at $130.00 all wrong, we mess things up, risking brain damage. so let's stop this self sabotage, humans and multitasking. watching our new to v w documentary, this shadows, these pop costs and video shed lights on the donkey street. devastating colonial har is infected by germany across and he employed discourses, tactics, farms,

and destroy livestock. what is the legacy of this wide spread races, depression, today? history. we need to talk about here, the stories, shadows of german colonialism. the . this is dw use, and these are our top stories. former us president jimmy carter has died at the age of 100, taking office in 1976. as the 39th president, he served only one term, but in that time he mediated a landmark peace treaty between israel and egypt and accomplishment would also earn him the nobel peace prize. carter died in hospice care in his hometown of plains, george a plane crash and south korea has killed over 2 of