and the cost compared to classical technologies has decreased almost by a third, no reinforcement was used in the design. the world capital of printer housing construction is, of course, dubai in 2016, the world's first printed office building was inaugurated here. now it is located in it. the so-called academy of the future reported that thanks to the technology, it was possible to cut labor costs during construction by half. true, at that time individual concrete blocks were printed in china and only then they were brought here, but this was the first experience that inspired by the record in 2019 in the desert appeared already entirely, printed on the site of the building, which was included in the dinessa book as the largest made on a printer. there is good soundproofing. we are located next to the highway, but we don’t hear its noise at all in the form of that room, when we designed it, we put ourselves in the place of the

owner of the house and thought. and what if you want to change something, for example, flash a bedroom, just cut it off here. in an instant. see what a big room turned out instead of two rooms one, to build it took many months of experimentation with the participation of engineering teams from different countries, it was necessary to create a strong and not too fast drying mixture based on local sand and other materials. and this is not easy, especially in a hot climate, water leaves the system almost instantly, respectively , there are foci of uneven hardening. and as a rule, if the mixture is designed incorrectly. it begins to crack just after a few minutes after laying in the structure among the participants the project was and specialists from the moscow state construction university sealed as a result of an american company with russian roots. the building will withstand even

an earthquake. the walls were hollowed out layer by layer, pouring concrete mixture, then the voids were filled with reinforcement and concrete for strength. the building belongs to the dubai municipality, when you are inside, you almost do not feel at all that this is some kind of special building. but perhaps here is the rounded shape of the walls, sometimes these are the longitudinal strips that i left somewhere printer, but in general this is an ordinary office building in which no one has yet worked it out. uh, use only for tours, then open a museum here, showing such a window to the future, which, as they believe in dubai, will be exactly printed on the 3d printer of the authorities. dubai is radiating optimism with their plan in 3 years, a quarter of all buildings in the world will be built using 3d printing, because it will be beneficial to the authorities. dubai is said to have taken just three

months to complete, instead of the usual size, 12 and 18 a has dropped from 3 million dirhams to only 800.000, but of course this amount does not include the cost of all research and development, as well as the printer itself, so you know there is some manipulation of numbers here, besides floors and ceilings. not printed here yet. it's just stacked slabs that the printer is not yet able to do in russia with technology that has its own problems. the mixture dries for a long time in the cold, alexander maslov, head of a construction printer company, says that his temperature record is minus seven degrees in this weather. he made a small house part of the hotel complex. the thickness of the walls, 40 cm. it should be warm, along with the roof, windows and doors of the house, cost 914,000 rubles. that

only crusts are printed quite competitively, which are then in the hall with foam concrete, this determines the heat capacity of this building. they will not plaster. outside, not inside, the windows are two-chamber warm and underfloor heating, alexander's personal house is also printed with his family. he has been living here for 8 years. well, the house is quite a large area. the foundation is 196 m², the total area of ​​the house is 300 m², from the inside it is finished, uh, with liquid wallpaper. that is, it is no different from other similar houses and only in some places. here is the invoice. e, which is reminiscent of the fact that this house was printed on a 3d printer for 50, unlike the hotel , not on the spot, but in the workshops, and then from 600 separate blocks. it took 2 weeks to assemble the building by additionally pouring concrete, despite the complexity of the technology for alexander. i like it so much that he also printed a

summer kitchen for himself. she is inscribed in the figure of a cat, who lay down to rest looks really. unusual but true. it was profitable that we conducted a survey among moscow builders and there were quite a few who were already eyeing the technology, but after detailed calculations, it was abandoned by a certain speed of production, work on unconditional weight, that is, 3d printing allows you to quickly enough. ah, pouring, uh, concrete formwork pouring concrete in, but there's also an additional cost that includes all the relining. these technicians transport and from place to place install it on a new site at our request expert alexander chesnokov compares the cost, for example, of a printed hotel in yaroslavl with the construction of a house of the same size from popular materials - glued laminated timber, wood, brick, ceramic and gas silicate blocks, first of all, any house begins with a foundation, and here a 3d printer does not

will help lay about 680,000 rubles. for a brick , a reinforced foundation is needed, and it is more expensive than about 730.000. moving on to building walls, where 3d printing should show its benefits, but at a cost comparable to gas silicate or ceramic blocks approximately 600,000 rubles. cheaper by 100.000 will be a frame made of pine. but a brick or glued laminated timber will cost from one to one and a half million. further roof engineering communications. the most costly stages are about 2.5 million. printer. here again will not help on the decoration of the printed walls. it will take one and a half to two times more material. while a bar or a tree. you can just paint and save 300-400.000, the final cost of a 3d house will be comparable to an expensive brick or timber and it will be more expensive than a house built from gas silicate blocks. but for now, everything will obviously develop in the future. perhaps, as it seems to me,

probably only in the segment, and in high-rise construction of multi-storey buildings there, some advantages of this technology can, uh, more or less. significant impact on the whole process is provided by e in the segment of individual residential development, especially for a private e customer, probably, such advantages. i don’t see apartment buildings until we are allowed to build like that technology is considered too young and untested, nevertheless, more and more projects appear around the world. in america, they are already trying to print houses without finishing, where the poor are settled and began to build such a large block of army barracks in texas. well, in the same dubai , whole blocks of houses and a sprinter are planned, and possibly due to an increase in scale, as has happened more than once with different technologies. the price, as a result, will fall precisely behind the seal in construction will be in the future. what surprised us this

week scientists and inventors from different countries directly now on the air miracle of technology fifth place in our traditional hit parade of scientific and technological news. in america, they began to take orders for a smart basketball hoop, in which, instead of a shield, there is a large impact and a waterproof screen with a built-in camera. it allows you to work with a coach online, he will see your actions, or the system. it can track track-turia and the success of your throws, lead, statistics and so on. well, or you can just turn on your favorite program or movie on the video shield at the moment when you play the cost of new items 4.000 dollars. this is a miracle of technology further, in our issue, the lord's ring can jewelry control our health on the finger, i still have green spots on my

neck, black marks, and what is the danger of improper removal of rings from fingers? on the table, the automation twists the image so that it is clearer miracle, shock absorbers for the backpack, which take part of the load on themselves. do they really help? no i'm tester, as well as the best discoveries and inventions from all over the planet. the most interesting is yet to come. strength of mountains strength of spirit strength of will strength of

beauty strength of family strength of tradition strength of movement goosebumps ran back and forth. finally, we heard what we wanted so much, what we had been waiting for so long, the mask,

the decisive semi-final today at 20:40, but ntv police brotherhood premieres tomorrow at 20:00 ntv has a lot of household equipment. yes, aliexpress buy home appliances at competitive prices, for example, the redmond upright vacuum cleaner for 6.990 rubles. if allergens get in the way, take alway a new generation drug for various types of allergies is quickly absorbed, blocks allergic receptors and fights itching, edema and inflammation of allergies with allergies. not along the way, the item looks like a grandfather on a rarity. 21st century human smartphone a whole package has accumulated a lot over 100 years three

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of citrine reparation capabilities. no matter what kind of pet you have, citrine is important to block allergic receptors and protect you from the effects of allergens. after 20 minutes, do not be distracted by allergies alice where it is cheaper alice does not sell anything, but simply looks for prices on the internet. first first i'm first first i'm first no i'm first. no , i'm with a megaphone every first. connect the path first option and increase the speed of your mobile internet. the megaphone starts with you. i'm a new active gel, when you have a backache, i easily penetrate the sack of pain and quickly disappears it's time for a workout. meet the new comedy with a record

number of viewers hundreds of positive reviews how they rob people in order to later entertain their fighting girlfriends sansa the sea is already all swimming. punishers throw holiday parties the secret life of zelensky's militants tonight at 6:00 pm on ntv this is a miracle of technology i am sergey malozemov and

climbing higher in our hit parade of news from the world of science and technology, that on the fourth line , an unexpected feature of the psychology of criminals was revealed by researchers from britain, it turns out that thieves are more likely to open cars left under the light of street lamps, and not those that are in the dark. this follows from the analysis of such crimes in recent years in different countries, statistics show that in order to reduce the number of thefts, it is useful to turn off street lighting after midnight until morning, in some places where they did this for the sake of saving energy, the number of such crimes fell by 50%. researchers believe that in complete darkness, criminals are afraid to look suspicious. after all, they will have to use a flashlight. also, no street lighting. values, did you know that wearing rings on your fingers

is harmful, it spoils your health, it takes vital energy and interferes with the implementation of plans, you haven’t heard about this, which means you are a happy person who reads little social networks. we honored them for you and sorted out the arguments of the ring of haters. the wedding ring left a burn, what kind of nonsense is asking young people on the forum, the mother of the user with nick is a flower, a preliminary diagnosis was jinxed by a certain kesha explaining that she herself had similar symptoms and only healers helped out other forum users do not believe in mysticism insist on the earthly origin of the skin reaction allergy or dermatitis, authors of popular internet. the media fuels fears, they write that wedding rings are not as simple as they seem, they can allegedly oxidize over time, and gold oxide promises problems for men with a patent, what science says is actually

oxidized gold in domestic conditions is unrealistic. that is why it was once ranked among the noble metals, to get it you have to try. these are very high temperatures. this increased pressure of oxygen dissolves the gold. first, in aqua regia, this mixture of nitric acid, hydrochloric acid, then gold salts are planted, and then there are already salts that make oxides. but this is all about pure gold. but in practice, jewelers often use alloys. and here options are already possible. nickel, copper and other impurities oxidize quite easily, especially if the jewelry is made in an artisanal way from such pseudo-gold, irritation and allergic reactions can be a source of problems. perhaps such cases are described and the radiation used by jewelry in the 20th century, for example, if we take diamonds, they could be

irradiated with salami for the sake of it and as a result, the diamonds acquired such a uniform color. no, they could not have residual radiation over the entire surface, which in some cases could be very it is now more profitable for a manufacturer to irradiate stones with electrodes when it is high. by the way, they acquire a more uniform shade and it’s safe, but is there a risk of running into luminous jewelry, processed in the old fashioned way? let’s check my colleagues’ favorite rings bought in chain jewelry stores . together with the owner of an antique store in the center of moscow, an experienced gemologist and specialist in precious

stones, yulia kotkina, we checked how things are going with older jewelry. right here is a diamond 19th century, gold chain of the fifty-sixth test or 585, if blue diamonds are transported to the modern one. this is also ennoblement and, most likely, measurements by irradiation calm the radiation from a diamond exposed to radiation, the norm does not exceed blue stones in another. the top is also quite safe. but this is not all that scares consumers, for example, rings and other silver jewelry often leave unattractive marks. on the skin, this happens to the economist alexandra kudryashova from the very childhood. i am somehow a baptismal cross on a silver chain. before that, there were threads and all that in one day. it turned

black sharply around me, the neck around it turned black, and they said that i could get sick with something serious. she was so so i even threw her out later, because, well, she was completely black black-black, she became a girl, nothing serious. as a result, she did not get sick, but silver tries to put on cuts. i had green spots. this decoration was worn around the neck on a white turtleneck. after the nails remained black traces of decoration we tested alexandra in the laboratory. it turned out that they contain much more other components than silver itself, and only in the pendant of the bracelet, also fairly, darkened, 92% of the precious metal was found, which can also blacken. for natural reasons, even the most chemically pure silver but darker with time. this darkness - this is the so -called silver sulfide is formed by the

interaction of metallic silver with gray compounds. in this case, it is usually hydrogen sulfide. sulfur. hydrogen is found both in the air and in human sweat sooner or later, the decoration will fade simply from contact with the skin, but it is dangerous. this can be a maximum of redness and irritation, which quickly pass, the rings are still attributed to mystical properties. the guard of the sergey masov, from moscow, for example, says that his ring turned black and cracked on the eve of his father's death for the second time dark spots. once again proved prophetic cat lived. 20 years old and our cat became very ill and shortly before her death. the cat didn’t get up anymore, and now, my second ring has become darken, and after it has become completely dark. uh, cats are gone scientists. they say that this is a classic example of magical thinking, when

something happens, people then persistently analyze and look for signs that supposedly warned a lot about it. you can correct a person’s condition, prevent diseases or even treat them, the director of such a medical center explains through the hand and foot, and also fingers and toes pass. the so -called energy meridians in the center of the middle finger runs the meridian of the gallbladder. pain in the gallbladder area may increase, and if the patient constantly wears some kind of cold ring, e, sand pebbles may form on this finger. well, uh, migraine headaches are often associated with wearing exactly this, kolechka, evidence-based medicine, such an argumentation is not recognized by the candidate of biological

sciences, a physiologist, sergey savelyev says that in none of the normally staged experiments energy invisible connection between the organs was not found only the nervous system. this is pure , so to speak, about fanation, since there is no such connection and it is impossible to influence the organs through the hands in this way, the intestines are drawn here. well, what kind of idiocy we have, if you shake out the entire nervous system from the intestines, then it seems larger than our brain. and some weirdo wants to act on them through his fingers. in fact, the effect of rings on health. maybe, except perhaps in such a way, about which they warn trauma doctors. this skeletonization of the finger is most often the fourth finger of the right hand, on which he wears a wedding ring three, for example, jumping over a fence or jumping off the side of a car, they cling to the edge of the ring and

remove the skin and subcutaneous tissue from the entire finger. this is a serious injury that requires serious reconstructive surgery long-term treatment of skin grafting, this is the main headache of hand surgeons. there can also be abrasions and swelling from the rings if the jewelry turned out to be at the wrong time in networks, by the way, a lot of advice on how to remove a stuck ring at home, it does not always work out. fortunately, the doctor, commenting on the video from the internet, gives his recommendations on how correctly she, er, obviously tried to remove the ring. just by pulling it off your finger. what injured the skin when removing the ring, it is necessary to try to drag the skin through the ring towards the hand, that is, not just pull the ring, but drag the skin through . to avoid injury, it is better to remove jewelry, where there is a risk of catching, other dangers. nothing more than fiction and a house.

i. although, of course, they may well be made real beyond measure, developed fantasy and moonshine, do not miss it . which can replace a tv and a music column is screwed into a lamp and projects an image even onto the ceiling - this is how magic works. a miracle goods column about when an advertisement is true, and when it’s not, we check the shock absorbers for a backpack, with which the burden should become several times lighter. how the feelings of adults and children will change, as well as the most amazing discoveries and inventions - the leaders of the weekly news hit parade. how to watch the releases of live food and the miracle of technology on the internet is easy

on the ntv.ru website, the transfer section, and you can also receive the latest and most interesting news about useful products, unusual discoveries and scientific sensations, all this on the pages of sergey molodev. games yandex zen vkontakte and odnoklassniki there are book draws and short videos about food and technology are posted several times a week especially for those who love entertaining science in the internet format. search simply by name and surname sergey molodev. subscribe and we'll be in touch. why do you need so many cards if there is one halva in installments for 10 months and a sausage with a cashback of up to 6%. all i need from different cards is in the hill just one card for everything in our show you don’t know who is hiding with clues, and with avito you know for sure that you will profitably sell your smartphone dress or guitar, just place an ad and

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