ah ah ah ah ah ah, well you work as an architect, jacqueline, or not at all women in architecture. why are they so invisible to the larger public? we decided to ask them. the press is, what is the poetry the secret of a house? shattering the glass ceiling, women in architecture starts april 20th on

d. w. o. 1002 years ago the chinese made a discovery that changed the world explosives. for centuries they were used to kill and destroy. but explosives can do so much more. they save lives and take us to the stars they swear less and make room for something new. millions of tons of rock a mind every day with explosives. without them our wealth would be very different.

ah. ready ready ready gemini, this is the white giant, a rundown apartment block from the 1970s. ready ready ready ready the city council wants to have it demolished. ready ready martine hopeful will carry out this task. he's one of the most experienced to demolition experts in germany. it will be his last big project because he wants to hand over his company to only come mattis. she's already started planning the demolition. now they want to inspect the 6 flo will rica, motus is afraid of heights and doesn't enjoy riding the elevator. but martin hopeful is having fun. yes. how much?

how you can see that we're above the tree tones with the 20th floor is a great book. ours is once you get a magnificent view across this industrial landscape, with motus is glad they only need to go up to the 6th floor. that workers have already started to weaken parts of the wools. this will make it easier to bring down the white giant. yeah, 29 of those. some with salmon. him to some bow holes are still missing from home. let's see. was montana. it's documented. and oh good was they want to blow up flows 6 and 7. i can imagine it's like a tree when i'm home. remember to follow tree honey to cut out of which is how in that's exactly what we'll do here. hang tight, we're blast out a which for hold. so this is the high rise was, will blast out a wage. so falls down the even plan to have to which is one in the basement and one

on the 6th floor. so the white giant collapses in on itself. the whole process should only take about 15 seconds using misty. it is not as if we're kindergarten. children who, rec, other kids towers off to 4 people often ask us, listen, don't you have a problem, but you're always destroying style shopping blocks that know we're making room for something new about them. that makes us happy as well. listen to vultures. this demolition will shape or rica, marta says future korea because the industry is closely watching what's happening. induce book children house in germany. deep in the forest lies a well hidden research site. here scientists develop explosives for military and civilian purposes. a so called hollow charge

designates in a bunker with enormous force 321 looking to go blasting engineers all over the world. it use hollow challenges to cup through steel. with tremendous pressure. the explosive liquefied sits copper casing and drives the particles through the steel. this charge has forced to hold through 17 sick metal plates. the stores diaz was pandora deal, so behave like a liquid. this being displaced by the explosion due to the high velocity of the particles emitted. it wasn't politically the liquid copper cut through steel like a knife. hollow charges are the best way to blow up stretches made of steel. in

the elaborate tree, the engineers can design explosives for almost any purpose. these grey blocks contain explosives mixed with alan minium powder. this creates a lot of pressure and is useful for blowing up buildings. a lot has happened since explosives were invented 1000 years ago. at that time, chinese researchers mixed so peter, sulphur and charcoal, the resulting black powder was 1st used for fireworks and later for warfare. black powder only detonated when its constrained. then it develops its explosive force and burns at 300 to 600 meters per 2nd. around 800 years later, the italian chemist, oscar neo. so guerrero invented nitroglycerin. it's an infernal liquid that already

contains all the ingredients for an explosive reaction. it's 4 times stronger than black powder, but very unstable and sensitive to impart. there were many serious accidents. so guerrero himself was injured so badly that he stopped his research. but some one else continued. alfred nobel, he wanted to use nitroglycerin in mining, but he paid a high price in $18.00. 60 for his brother, a male and for others died in an explosion in the laboratory. legend has at no bell, finally finds a solution by chance. while in transport nitroglycerine leaks into a cushioning layer of grated diatoms, the resulting mushy substance is safe to handle. dynamite is invented was a demon painted root. our systems don't have a few spurts where you conduct my them with the lighter. we ok, that wouldn't work because the kinetic energy of the lighter wouldn't be enough to

to be meters. are explosive the discussion admission. i mean, it's you what makes them very slave? the so guns we don't ignite with firma lynette. i gave it to you, but with pressure mid machine again. so let me talk modern explosives, need a detonator that triggers the chemical reaction. this tube contains a multi stage explosive device. a glow wire ignites the trigger. this sets off a range of increasingly powerful charges until the explosive finally detonate. the headquarters of martin hot 1st company in east and germany were rica mattis and her boss have returned from the white giant induced book and, and now finalizing their plans. meanwhile, an engineer is cutting destination cords. these red tubes are filled with an explosive. they will need several 100 of these detonators for the white giant. they

marked down each charge with its number and position in a large table. you've got a minute, you're done. oh, okay, good. martin hobbs, her pause over the demolition plan which still needs the approval from a structural engineer far from dr. mill's. just confirm the structural stability suffer great. this isn't a sack, was a household a home as well? yeah, this project was a huge challenge that we need to factor in a bunch of things all at once. these are starting with the crammed conditions. i my, the blood fired msm does. we only have limited space available off of who gone to the right of the white giant is an underground parking lot that must remain intact in front. is the street hub for and matters have developed a bold plan. they want to fold the middle blocks fast and then let the outer to tip

into the resulting gap about the explosive charges must not interfere with each other. additionally, the left block must also be folded, otherwise it would be too long for the gap. yes, initial pessimistic doesn't. we're not pessimists for them on. so we're always optimistic during the planning. oh, but you also have to keep your eyes open for problems and you simply cannot leave things to chance during demolition, which we need to discuss everything in advance understand and we're thinking through wasting. then we're able to bring down the building safely. the spoke out we go fields with the to drive to the company explosives warehouse to pick up charges for a test blast. it's a missile defense bunker that's no longer in use. only few people know the location where we come. artists and martin hop for work quickly. the explosives stored here contain night traits

which causes headaches and they still have a 4 and a half hour drive to do some work ahead of them. there they want to do blast tests on some walls of the white giant to make sure that the explosive charges really work. potsdam bothers bags, film studios, lights, b, r a. something's not working. the car should have made a spectacular jump. but the mechanism got stuck. power placing is a pyro technician who worked on the special effects in major production, such as game of thrones and die hard left. so special effects are the go to company for

a big bang. to day the team is working on a top secret production in which a car is supposed to explode. dog optically, the client is expected on said tomorrow in tune all season song will shoot out the doors years old. not up. we have so called launch pod chair with a counterpart in the door when i put a load of black powder in the large pot. and that was low this door life a thick. she clenched with also use explosives under the car. quite a big lot was of a lot of money to destroy anything or to create a shock way from the talk visit. we had a bit of dust and then the viewer sees there's something happening will show a locally the patio. it was hidden in the trunk is the compressed air control to make the car jump. a total of 17 different effects will create a perfect illusion. while his colleagues work on the car pricing prepares the explosives in his workshop. so yet been real dish

langston were lot on formal item. so now i'm going to prepare the load will put onto the coddle. i'm fixing the detonation called in the form of a smile, fingered and forming a snicker here off decides to exempt. so the force will then be distributed across the surface i should for t iron power pricing uses the same type of explosive code that will be used on the white giant. however, this code is my center, so nothing happens to the car. so let me turn the light on. so the finished load that is going on the car to generate the blast wireless cycles with the technicians mount, a compressed air hose with a funnel. what, which way do you want to do this? we'll create a large fire ball inside the car. the funnel is loaded with pollen because fine dust explode spectacularly when ignited

pricing is pressed for time because he needs to finish a project for another film. he's prepping bamboo poles with small explosive charges that will create bullitt hells. if infiltration recall spring, not on these micro charges, i'll take one out a so called cylinder 6. looks pretty inconspicuous that they can fire job like we're talking about 300 milligrams, his one except selina, this cylinder 6 is used to create large bullet holes rings on branches. which day we have them in a range of sizes, jungian in flashing, and colson sourcing. this is what our disks look like. classes, this is the classic chart for body shop, sir. decry the power of this tiny thing also is enough to rupture a club back to touch season. the liquid then worked his way through a piece of clothing, but it's weak enough not to hurt anyone. is alice rock and look on how many months of harlots small lead plates sit under the explosive challenges to protect the

actors. the bamboo is not protected. on the contrary, i don't test this out in a band. the guys go just as a yoke and all this is exactly what we wanted to harden goals. we wanted to rip a large piece out of the bamboo. what and see materials in soft material. i can fly on. he wants to see his route. i can do that. stanley blindness tires. meanwhile, pricing's colleagues prepare the vehicle. tom teela puts the cardboard with the destination code under the car. next to its he places 2 small metal containers with gas cartridges. they'll create fireballs to cover the hydronic ram that makes the car jump. pricing will trigger the effects by remote

control, the engineers of putting in the doors, but they won't shoot them out until tomorrow when the customer arrives. because with explosives you never know if you get a 2nd chance. 2 i guess what the attention this will be very loud. i'm counting down 3 la too. i won't go. the shockwave under the car worked. the pollen exploded and the gas cartridges ignited. but the car didn't bounce. that in that wasn't enough in far from it. the technicians look at a video of the explosion. one shot was one hit. it it jumped into behind. absolutely. they only have until

tomorrow morning to figure out the problem. to are in western france. this is one of the largest granite quarries in the country. here, engineers blast $6.00 to $7.00 times per month. the quarry provides hundreds of thousands of tons of rock and gravel for road and railway construction. the quality of the material is so good that it's used all over the country. 3 large dump trucks feeds a gigantic stone crusher. it can crack boulders up to one and a half meters in diameter. the crushed stones then fallen to a conveyor belts ready for further processing. however, the blasting engineers into our have decided to try out

a new approach to increase efficiency. guarantor santiago. mean, the group would read the blog if you execute to blossom, and as is the case here, the boxes to pick re duty of one to break them up after through the stone crush. elsie or this is a mechanical device, the costs much more than using explosives, direct lender expose e for the electoral t l he been now has developed a method to perfect blasting inquiries. first, he places mark a boards on the quarry edge. they serve as guides for the drone that's about to photograph the terrain. the aircraft delivers images from various angles. it flies a predefined course and photographs the edge of the quarry.

after about 5 minutes, the job is done. thanks very much me welcome. using the image is still he bene calculate, says 3 d model of the blasting zone. no galleries, yen cell punchy barrymore of the software is primarily used to design the plasticity of the data from the drone allows us to accurately calculate the geometry of the fracture. the software also calculates how the pressure will spread daycare and where crocks are likely to form on time. based off of that, you said, you mean we can optimally place the draw hall's food so that the energy is distributed as even the as possible. be shown the analogy sort of brittany from placebo. the software calculates the exact distance between the bowl holes and the amount of explosives needed for each one. the operator on the drill rig receives the data on a usb stick. not only is the exact position importance,

but also the angle at which the holes drilled. the machine drives 17 meters deep into the granite. there needs to be 49 holes drilled by tomorrow morning. ready ready ready ready induced berg mat in hot fat and already come out is worry about the white giant. they've already logged the detonators and challenges for the test blast into their system. now it's time to check the walls. to deal with this was that we might have interfering with it. so by it was i'm going right michel. jo. yes, welcome to improve the collapse. does this is off that doesn't matter. for now. i only want to focus on the black will kind of will blame you. we don't have any problems with move in. and here we'll have to talk with the planner about what we can change and where are your test blasts in this area. now, when you're here, the thirty's there,

the 35 would from will that start the problem is that the middle blocks need to come down while the outer ones have to remain standing for a moment. the critical points of the joint walls between the blocks. if these walls collapse, when the middle blocks are demolished, the outer blocks could topple too soon and crash against each other. then debris would fly around uncontrollably. this must be avoided at all costs. that's why the blasting engineers and now conducting a test in the basement of the white giant. they have chosen walls that have to be destroyed before the blast anyway. so the building can collapse more easily. they're trying out 2 different methods in one spot. they place explosives directly against the wall and then cover them with sand. when ignited,

the charges should push against the sand and destroy the wall. in a 2nd location, they drill holes into the walls, which takes a long time. these holes. so then loaded with explosives, vista, it's important to see what happens when we demolish one wall. i know of and because the other one must remain standing according to how we planned it and set one fuse, 2 tests for madison. you miss martin, you'll take over we start and go ahead and let's say 2nd plastic. no, i mean august 2nd, ball signal ah,

attentional. oh, so come back, 321 technician when there's a lot of this complete. my problem is my side. now comes the moment . if tracy with tension is mounting at the potsdam bubbles bags, film studios, how toys sing, and tom t la prepared the car. their client is already here. oh, to comes up to talk under all effect today. it's absolutely crucial. it all the effects we've planned love can happen at exactly the right tire. we want to win the client's home and what's on demonstrate that this will be the scene. they'll get on the day of shooting i and re talked until decline will say yes or not according to what's on yoda 9. luckily they found the faults in the air jack yesterday. an

engineer had changed something for another project and hadn't changed it bag does. for these charges who shoot out the doors crossing quickly prepares 6 black powder challenges and installs them in the car. thus contin schwartzbar line that goes into the black powder, put the igniter in them close. it lets us finish charge. so does really it's, i'm to ready as a lot of power even like this. you go to it, but i need more power and i want to move steel dos. aba is called me of holiday and i fear style. so i'll start typing it as a function and it's a table. this charge will shoot out the trunk to be on the safe side. the technicians attached a steel cable, so it doesn't fly too far. although black powder burns relatively slowly, it develops a high pressure. everything

is now ready. your oil, rolling your line. i slide on go ah, the pool table to help you find finding klembara techniques were great, of the klein liked it. that's the important thing. if you're off to 4 seconds, then we're done. we saw all our efforts produced great results, jim and then that's it. on done last us, the scene will be the grand finale of the film. into all the preparations for the blast reached the final stretch. a special truck

quiz 10 tons of explosives has just arrived at the quarry. the engineers use a trick to make the transport safer. there are 2 separate tanks on the truck. the liquids inside only become explosive when they're mixed together. t as a banner and his software did the groundwork. now blasting and ginny as you play more takes over. you see comments on the road we use, you may see yes, it is fun to press the button holes, a blast. as of course the goal we're working towards it, but it's only a small part. so it only takes a 2nd, but a whole week of work goes into that one second focus i key. so our motivation is not just this moment. i'm old. we really have to take care of all the stablish in a few 1st, the work has prepared the bull holes. the sate quite cylinders

a night trickle. i call a common explosive inquiries. such a charge can crumble a massive concrete wool. but here they only service boosters to ignite the liquid explosive that's now being filled into the bow holes. in m. i meant t as he been. now, we'll find out whether his software is superior to the experience of the local demolition experts. the explosive mixture on the truck is a rather slow burning explosive. that's because the engineers want to generate a uniformly high pressure in the rock, which will create many cracks and crush the granite wall. ah.

blasting engineers, you blame, gives the order to clear the area. ah, he will detonate the charge is by remote control from the top terrace of the quarry . ah, 2 ah $40000.00 tons of granite have come loose. that means 4 days of work for the excavators before dell needs new supplies. together with a mining engineer, typically bene surveys the results. we got dog hello has been done. just come so

the result of the blast is as expected, the movement of the rock masses was well on the control. the chunks didn't fly further than twice the height of the demolition edge, which is how it should be. the edge is nice and straight on. the fragmentation is fairly homogenous, love are all in all a very good last illusion because most of them would you it's the triumph of technology over experience in the future. the corey operators will use t l e been as software for every blast induced book the smoke has cleared martin hub, sir and oh, he come at his wants to see which lasting technique worked better. first, the charges that were covered with sam's are not exactly the wrong way round. the explosive challenges in the sand pile should have

torn a hole in the wall. instead, they only caused a few cracks. the wall on the other side however, should have remained intact. they go take a look. oh so does this does was we are resolved on whoa for years of you are. so this is what we were afraid of. it that the wall that was supposed to be destroyed hasn't crumbled done with the wall that was supposed to remain intact, has crack names either. how to your plot that endangers that collapse process on the field. it involve showed all the direction of the force. con basil are simply now they checked the wall with the bull holes because as these are fully ranked, this test destroyed the drilled wall and left the other one intact was in a positive rush that had one if it were positively surprised why we wouldn't have thought that the wall behind it would remain. so instead of them,

but there are no cracks in it at all. if you look at it from the other side, there's nothing to see when the raw material, blue eyed exactly in the area with the whole soil global on it. he's a, he's a how. so the issue that we were facing with these walls has now been solved on thank in duluth. yeah. now know how we have to adapt our technology and how to proceed. so it runs smoothly. this means drilling even more holes. there's not much time left until the grand finale about 300 kilometers further south in bavaria. tom clear developed safety systems for cars, pseudo colleague from ace to league mid. some altima,

a very good colleague of mine had a fatal accident in his vintage vehicle on a country road like this one road was well and he wrapped himself around the tree. seems to want the worst thing that can happen. channels on old cars have no airbags and certainly nor side air back. so i thought to myself, we should do something to the if a tree comes from this side of the alpha above and there's protection order, has an air bag comes out. does. was he obstinate some kind of just on the other guy was come. tom clear is on his way to meet his team at a special test site for airbags. stop the engineers use high speed cameras to check how the airbag reacts. it has to fully inflate in just 5 hundredths of a 2nd. ah, the onboard computer in a modern car conducts the whole orchestra of airbags there was really did it, you know, kind of us on question has to detect there's

a crash and then asked to rate night and in flight the correct air back to i only need the airbag on the right, so i need one. the driver side is the side air box or a cushion. although there are all kinds of airbags that can be deployed. however, the life saver can also become a deadly danger. when was he forces us money? fuser you often see people putting their feet on the dashboard. what are they? large pothole them. are well, far yoga. and of course everything that's replaced bank. it's ridiculously accelerated, didn't bring over all your bonds with break really bad injuries. weird, so it's, it's not worth putting your feet on there because it's cozy. jones, i guess what the fusion are, you likely wouldn't survive established. so it's my suggestion. does a here believe induce booked. the white giant is nearing it, sends excavators the piling mounds of earth around the building to catch flying debris. the basement flows have been dug out,

said the explosive charges can flattened the high rise. martin hope fur reviews everything. he's nervous in the basement to engineers, a filling the last 4 holes. not yet. the challenge is don't, st. would get some detonating chord and a threading iron and put it in. come on, let's do something else. in the meantime. hopeful has wired up hundreds of electronic detonate. is that those and tried this? the idea, the crucial thing is the ideal. it's a unique number. every detonator has one open. when we've programmed each with a certain destination tungsten site, with a delay of up to 30 seconds, excellent,

then bus is and by that's unheard of and blasting technologies, i embody this as unique. so we're all excited for him or worry all, i don't know what to think at this point is, is move it will, you will see on trauma electronic detonate is a more accurate spit, also much more expensive than conventional once. meanwhile, or rica motus is working on keeping track of everything so that these colorful pitches of the result of the few night shift. i sat here every evening until 12 she needs to double check 1000 positions on her list. but hope for now once to inspect the 6th floor with her what is not as please come here and i'll take care of everything else later. the sick slow will be blown out. there are hundreds of charges under the piles of sums.

what was as rupees with us? we don't want it shortly before gross was the ignition system again and conflict and i checked to see with all the detonators hooked up to the main coin tosses guns, and i can all go through it again with mr. norbert when no one else is in the building, even just us without plans double checking each floor again. well, come now just him tomorrow morning. be different to figure out when that's when the excitement cost when counting i'll be fired out. ready ready ready 18 hours to go before the big blast. ready ready ready tom clia is now working on another project. he and his engineers, the trying to better protect pedestrians in the event. this struck by a car. and again they using explosives. the problem is there are lots of hot parts in the engine bay beneath the hood. in the event of a collision,

pedestrians can seriously injure their heads. that's why ca, manufacturers have developed the so called active heard sla small explosive challenges, shoot up the hood during a crash. that's it. perfect. the hood shut up in a 100, so the 2nd ritz is probably luther. and now the how it is out from all of this is the best position for a pedestrian to fall on to it and be protected from the hard components underneath the hood. doctor will dog a sensor in the bumper detects whether the impact comes from a leg or from a sucka bowl. for example. it then ignites the explosives. everything happens so quickly that the hood is raised in time before the head hits the metal.

explosives are increasingly being used for safety systems. meanwhile, car manufacturers have even installed airbags between driver and passenger to prevent the 2 from colliding. first of all, these vans and vicki vile via mich brings to hold a drive. middle explosives and cars are an alternate song because we can generate extreme speeds to achieve a certain m worthy insulin. these to be detected allows, given the signal evaluated. and then an airbag, for example, has to be ignited, or the hood has to come on. i need incredible speed or dial and high pressure and force get only explosives can do that. unrestricted manufacturers now even develop external airbags to protect cars from other cars. so there's more to come. ready ready in this book, the time has finally come. martine helps. i instructs the security guards. as one goes young, it's possible that the building tips the wrong way that can happen when you and it

can't be ruled out 100 percent of health. the 2nd danger is that we generate vibrations or firstly through the blast itself, but also through the collapse of the building shields. that's over $40000.00 tons of concrete that will come down the don't that will rattle the ground a bin. okay, you'll notice that note as well and something could fall from the building due to the vibration house. please think about your safety and it was a shot it. they haven't even laid the main ignition cable yet. the small movers we have to do that now with with michelle right now. what huh. where we can t is now really, you know, the 2 engineers from rica matches his team need to quickly run up to the 20th floor . if a neighboring high rise and set up the master control, they chose this location because it offers the best overview the convert of can below the ignition court dogs lawson. yes. despite her fear

of heights, motus would also like to be up that to press the button, but hope for once there on the ground with him. he's worried that she wouldn't make it down in time if something goes wrong. charge the hose line was the most ga oslyn obama. the wood fountains captured the dust ferguson. ah sure. okay. 2 fire crackers. the settle beforehand to startle. pigeon said they don't get buried under the rubble.

marcin hopes is lost, high rise is history hallmark. let's take a look at what happened was swindle basildon. the engineers check for collateral damage. i'm fine. how did not get in the beginning? i was counting the seconds at the time delay i did then when everything was in motion, it was just that was the the implosion that was just ah, that was brilliant. yet. there was a moment of shock because the rights block remained standing for a very long time,

but the additional explosive charge that was meant to fold it gave it to its final impulse. gonzalez by noah's uncle, fine with all the tension has melted away. we just overjoyed that everything worked out the way we planned it over weeks and months to get the all that work has paid off. got the tide. come up, congratulations or nothing broke except the building was that was big. want to go take a look. with the white giant collapsed as planned and didn't cause any collateral damage or rica mattress and

her young team of engineers could not have wished for. a better start. martin hope for can safely hand over his company. and when the rebel has been cleared, a green park will replace the white giant. ready ready ready ready ready ready ready ready ready ready ready ready ready ready ready ready ready ready ready in good shape, studying in your sleep. distorted memory, oh flash of inspiration. all memory. how does it work, and how can we use it?

how do we tap into its full potential with w? o. enjoying the view she come to take a look at this tv highlight school every week in your inbox. subscribe now several dead and wide wing extremists women's rights regression again, world might be a couple late and burned in south africa. people with disabilities more likely to lose their jobs. in the pandemic black lives matter. shine a spotlight on racially motivated police violence, same sex marriage is being legalized in more and more countries, discrimination and inequality, or part of everyday life. for many, we ask why?

because life is diversity to make up your own mind. d. w. lead for mines. ah ah ah, this is dw news lie from berlin. at least 4 people are dead after powerful storms, tear through several u. s. states. authorities in arkansas and declare a state of emergency after tornadoes touch town, leaving devastation in their way. also on the program, russian president vladimir putin orders a fresh wave of army conscription.