Create a clean path from the speaker to the listener’s ear The perception of stereo sound depends on subtlety and in particular on the presence of live sound as well as the immediate feedback that follows. Incoming sounds play a general role in what you’re hearing, but they’re not as important in stereo as the “first-in” effect (the latter is considered unimportant by the ear/brain’s decision). spatial and positional information). Now do you understand what we mean by “clean road”? You don’t need anything on the floor or anything else close to the path from the speakers to where you sit. The floor and ceiling of the listening room should be flat and smooth because high frequency reflections will be minimized. If the ceiling is not very high, it is better if it is made of a soft and smooth object. The problem here is that rough materials, such as appliances and furniture, will cause the sound to be distributed unevenly. This is one reason why the stereo effect is blurred and the ideal performance cannot be obtained. A friend in the test room asked me to close my eyes to test the change of stereo sound when there is an obstacle in front. When the music plays, I feel the change quite clearly, the stereo comes out in parts, becomes distracting and the sense of space is seriously affected. Then my friend told me to open my eyes. What surprised me the most was that he just silently placed the CD cases on the floor symmetrically between the speakers and a few in front of us. This is obviously not a huge physical change, but it does sabotage stereo performance a lot. So what if you put a coffee table or put a few remotes on it symmetrically with two speakers and in front of a music chair? Maybe it will be convenient for you to enjoy the melodious music while sipping a cup of coffee, but you will certainly not be able to fully feel the stereo performance. Get rid of objects next to you, use a chair with a low back Although using a chair with a low backrest, the arrangement of the chair as shown in the picture makes it impossible for both listeners to experience the stereo effect. Hard objects near your ears along a straight line are seen to greatly affect when you listen to music. It’s best to sit in a chair with a very low back, as that will put nothing near your ears. If your back doesn’t adapt to this, you should at least use a chair that doesn’t go over your head and make sure it’s soft. Hard leather sofas become weak points because they reflect high frequencies. If you are sitting alone, cover the area behind and near your head with a cloth curtain. Because otherwise, a lot of high frequencies will be scattered before reaching you, or in other words, the back wall of the listening room should design sound-absorbing materials or accessories. But using a low chair is still best. Try it! You will be surprised how much better your system will sound. Symmetry rule Stereo sound is based on symmetry between two channels. For the latter, where people are exposed to large amounts of treble diffusivity, the role of symmetry is diminished. But for anything that comes first with the sound of low frequencies, the role of symmetry is indispensable. In the old days, when many audio players didn’t understand how stereo really worked, and especially didn’t fully appreciate the importance of the intrinsic tonal time difference, many would try to make adjustments. difference between the two channels by electronic means, i.e. adjust the equalizer and use a separate equalizer for the channels. The result was, of course, a disaster, because analog equalizers and EQs couldn’t deal with asymmetric timing effectively. When that happens, the actual digital signal processing (DSP) may be full of detail, but the problem lies in the accuracy. So it’s better to make the whole system as symmetrical as possible from the start. As always, the tuning DSP room works best when there is a lower frequency response peak and sag and is less demanding for correction (the one exception is the very wide, very useful bass correction. useful in practice). Part of the task of symmetry is on you, which is to keep the two speakers evenly spaced. In general, everyone does this, but they don’t do it fully and carefully. Let’s take a quick look at the numbers. People can hear a time difference between the two ears of about 1/100,000 of a second. But let’s stay conservative and give it only 1/50,000th of a second. How far will the sound go in 1/50,000th of a second? Well, a millisecond (1/1000 of a second) is about a footstep. So 1/50,000 is about 12/50,000 feet, which is about a quarter of an inch. So if you want stereo speakers, you need to get them within a quarter of an inch. Time is a measure! Mark the spot and keep it there. Sit near your speakers loa There will always be some sound coming soon that you really don’t expect. So try to make them symmetric and have smaller amplitudes, but there are bound to be some limits. The way to minimize their effects is to make the live sound appear as early as possible. Sitting close to the speaker is how you do this. Of course, you also can’t sit too close, because most speakers depend on a certain distance for the accuracy of the drivers. And to some extent, you need some distance to avoid hearing the microscopic vibrations because that can make the speaker more visible than the music source. But you’ll get the best stereo sound if you sit reasonably close to the points. Many people sit too far and to the far end of the room due to the fact that the music room is too long. Sitting closer to the speaker changes the direct sound reflection ratio. You should also sit away from the wall behind your back, and the speakers should also be away from the wall behind them (unless they are designed to be wall-mounted), because positioning the speakers and listeners too close to the wall will cause discomfort. benefit the sound of a stereo system. Need a soft room Many recordings (CDs or LPs) are made with the expectation that some room sound will be added as the music plays. A few other recordings were made with the expectation that they would not be echoes when heard. But all those effects don’t stand a chance if your listening room is too small. In my opinion, the best stereo sound should be presented in an RFZ (no-reflection room) room. In such a room, early incoming direct sound will be in moderation, and sound reflection will soon be absorbed. After you hear the live sound, the listening room will appear to be assisted by sound diffusion, where discrete sound reflections are not evidence, or the sound will arrive too late after the initial sound. arrived. As a result, live sound is heard more clearly, without being confused. While building an actual RFZ room is quite a challenge, you can handle it well by making a “soft” listening room, which will especially help the treble get the most out of it. In addition, a soft acoustic environment will also result in more harmonious notes. If your music room has a large picture, use fabric drapes to cover it while listening to music. In particular, the wall of the music room made of glass would be a disaster. A few years ago, a friend brought to my apartment a system to edit rooms. Then this apartment had a spectacular view, located on a high ground and had a long wall of nothing but glass and steel support. But when it comes to music, it’s clear this room can’t get the most out of it unless I add some curtains. Sit still and close your eyes Part of that symmetry is placing the music chair in the right position. Unless you move the seat straight forward or backward, you will end up in an asymmetrical position! But there is another way of sitting that is really subtle and more important than the effect. This is a complex topic so I can only give an overview. As the brain builds perception from raw data during processing, what we “see” or “hear” is not the same as light in our eyes or sound in our ears. Because it’s just a mental construct. This particular mental construct often includes the following surprising things: it will use many signals, but if one signal is lost, the brain will recognize it as lacking and simply reprogram itself to use other signals. This may sound crazy, but there’s a simple visual experiment you can illustrate with that principle. Look at a photograph with a lot of three-dimensional (3D) material in it or at a painting with strong perspective, then you will get some impression of a three-dimensional image. But if you look at them with one eye closed and the other through a short tube that blocks the background and only allows you to see the picture, there is a surprising increase in the perception of three-dimensional images. If you’ve never tried this, you’ll have a hard time believing that your eyes can see the background around the picture of the picture (the way you usually look at a picture), and the brain will pick up some signal about the picture. that three-dimensional perspective. But the brain will also receive information that the surface of the painted or printed picture is in fact only two-dimensional. Binocular vision shows a fatter picture, and the background shows it too. So the brain is getting conflicting signals, which means it allows you to see some of the three-dimensional image, but not all of it. When you look with one eye and don’t see the background, the signal to that fatter image is blocked. Going back to the world of sound, one of the ways the brain detects the position of an object, the shape of the hearing room, of space, or in general auditory terms, is to slightly move the head and Notice the changes in the sound. People will have the feeling that they suddenly “sink into” the space of stereo sound. There are some people who choose to sit absolutely still. This will put the listener in a quiet state, and obviously very suitable for listening to music. And, to my ears, the stereo got better. Finally, closing your eyes also eliminates cues that a person can’t hear in a concert hall or a stadium, but can hear from the speakers in your listening room. In short, sit with your eyes closed, with your head completely still, in a chair near the speakers in a “soft” room and in the correct symmetrical position with no obstructions in the line. between you and the speaker. If you do all that, I guarantee your stereo system can perform at its best. Hope you find the best stereo sound!

Recently, a number of foreign architectural news sites and magazines simultaneously published pictures of a tube house with a unique design in Da Nang. This tube house is located in VIP Hoa Xuan island area (Cam Le district, Da Nang city), is the living space of a retired couple with their two children and their mother. The front part of the house is used as a craft shop, the remaining functional blocks of the house are designed based on the vertical balance element. Thanks to the opposing nature of each space to bring a natural flow and enjoyable experience at each time of day for homeowners. The house faces west, so the designer has created many large gaps in the house with skylights to minimize noise, dust and harsh sunlight from outside. At the same time, thanks to the empty spaces, the indoor air is continuously circulated. Along with the source of fresh air, to reduce the harshness of the weather in Central Vietnam, the owner also planted more trees to bring a feeling of coolness and harmony with nature. The bathroom space of the house All materials such as fired bricks, grindstones, rustic stones, etc. are locally sourced while the furniture of the house is old family stuff.

Acne causes a loss of aesthetics. Milia (scientific name is Syringomas) is a term used to refer to small and benign tumors, usually on the upper cheek or below the eyelid. Sometimes, they can also float on the abdomen, chest area, and genitals. Residual milia is also known as excess skin that rises from the surface of the skin and is connected to the skin by a small stalk. This type of acne is painless, completely benign, and does not grow like malignant tumors. Milia mainly develops in adulthood, between the ages of 25 and 30, and occurs equally in men and women. Syringomas usually appear as small, hard, swollen nodules that range in size from 1mm to 3mm. The skin tags usually grow in small groups and can be yellow, brown, pale pink… Syringoma groups tend to grow symmetrically, meaning they appear the same on both sides of the body at the same location. Banana peel We often throw away the peel after eating bananas. However, banana peels can be a great way to get rid of excess skin blemishes. All you need to do is apply a banana peel to the wart and cover it with tape. Try to keep the inside of the banana peel in contact with the skin. Leave overnight and wash off the area the next morning. Repeat the process, the milia will fall off after a few days. Garlic Garlic can do wonders when it comes to treating skin problems. However, care must be taken while using garlic to treat milia. Take a slice of garlic and place it on the skin that has the acne. Use adhesive tape. It is necessary to replace the new garlic clove every few hours. Do it continuously for about 3 days, the milia will naturally fall off. Lemon Squeeze a few drops of lemon juice onto a cotton pad and apply it to the wart. Make sure you don’t step out in the sun, if you don’t want a tan. You can apply lemon juice three or four times a day. The milia will fall off after two or three weeks.

Diamond Ranch High School in Ponoma City, California, has a special shape thanks to its unique structural blocks.Architecture Week said that, at first, the project to build this school on the hill was considered impractical and impossible. . Photo: Library of Congress. The Ramon Cortines School of the Performing Arts is located on the edge of the Chinatown district in Los Angeles, California. This school is designed in the shape of a disruptive pyramid. Photo: Instagram. The spiral around the top of a school building is considered a symbol of this unique architecture. Photo: Wikipedia. Amino Lenox Charter High School in Inglewood, California, is famous for its wall of openings that both create a unique look and provide an airy atmosphere for students studying inside the building. Photo: Wikipedia. Youngker High School in Buckeye, Arizona, impresses again with its state-of-the-art performing arts center located on campus. Its auditorium can accommodate up to 600 people. Photo: Business Insider. In 2012, Sandy High School in Sandy, Oregon, was redesigned, doubling its size. The school is impressed by its asymmetrical architecture, taking wood as the main material. The school is located next to a small forest, creating an environmentally friendly feeling for teachers and students. Photo: IBI Group Architects. The Ínstituto Institute of Medical Sciences was built in an old warehouse in the city of Chicago, Illinois. The school has only 180 students and focuses on teaching Science, Technology, English, and Mathematics. Photo: JGMA. Most of the building still retains the structure of the old warehouse. However, the floor, ceiling and walls are painted in bright colors, attracting the viewer’s eye. Photo: JGMA. The unique feature of Riverview High School lies in its multi-window architecture. Inside the building, objects are arranged far apart, creating ventilation, especially suitable for space for libraries and cafeterias. Photo: Business Insider. Jones College Preparatory High School is on the list of the most beautifully designed schools in America thanks to its long architecture. Photo: Business Insider. The wide hallway is the perfect spot for a stroll in the sunlight streaming through the windows. It also makes traveling between classes less boring. Photo: Business Insider. This unique architecture belongs to the Football Academy, UNO Elementary School. This is a privileged school that focuses on developing football talents. Photo: JGMA. UNO has a giant soccer field in the back. In addition, the school also impresses with the curved window design. This school has 575 students. Photo: JGMA.

Duong’s pair of bottles from more than 10 million beer cans is considered a “unique” product. Mr. Nguyen Van Dai Duong’s pair of vases is 1.8 m high, 0.6 m wide at the widest place. It took him about 4 years (2014-2018) to complete this pair of water hyacinths. Photo: Nguyen Ngoc Mr. Duong said that the idea of ​​making items from beer cans was born in 2010. Since then, he has started collecting cans of a beer brand to make the colors of the items uniform. Photo: Nguyen Ngoc Over the years of collecting, Mr. Duong has had millions of beer cans. After thinking for a while, he decided to tie the beer can into a unique bottle. Photo: Nguyen Ngoc According to Mr. Duong, first create a frame for the pair to read the vase. Next, he used a fine fabric, cut it into a thin thread and threaded it through the ring of a beer can around the frame to create a unique vase. It takes thousands of rings to make a circle around the single-pot frame. Photo: Nguyen Ngoc “Only one broken eyelet has to be removed and redone. The hardest part is in the mouth and sole. I have to be skillful and meticulous to be able to connect the eyelets evenly, beautifully winding and not losing the object. worthy when arranging the rings,” said Mr. Duong. Photo: Nguyen Ngoc Duong’s pair of bottles from more than 10 million beer cans is considered a “unique” product. Many people came to see and offered to buy at a high price, but Mr. Duong still did not agree to sell. Photo: Nguyen Ngoc

The advantage of a 1-storey villa model with 4 bedrooms brings a feeling of comfort, warmth and gathering when people have more time and opportunity to interact with each other. Therefore, with the large campus, the choice of the design of a 4-bedroom villa is always a priority. Placing the bedroom next to other rooms in the same building will make moving easier. Especially for families with children or the elderly, life will be more convenient. The 1-storey villa has 4 L-shaped bedrooms. The highlight of this design is the bright red Thai roof. The foyer of the house uses concave lines. The roof has a moderate slope to make it easier to drain rainwater. Modern single-storey villa with 4 bedrooms. The Thai roof structure creates a highlight when combined with the sophisticated design style when using the impressive blue and wooden exterior moldings. There is a living room, 4 bedrooms right next to the main door. Behind the living room is the worship room. Next, the kitchen and toilet are placed next to each other to ensure the needs of family members. Model 1 floor 4 bedroom villa with garden. The dark Thai roof system stands out on the dominant white color of the 1-storey 4-bedroom garden model, making the work more eye-catching. The swimming pool is designed right in front of the house to help your space more airy and cool. To the right of the main entrance is the living room. Four bedrooms are arranged symmetrically across the living room and meet the living needs of family members. The kitchen and dining room are placed separately to limit the smell of food from spreading to the living room. The bathroom and toilet are located at the end of the house, so it is convenient to use. The low-budget 1-storey 4-bedroom villa is designed in a classical architectural style, the main white color highlights the delicate reliefs and patterns. The door system is made of wood to create an impression. The first compartment is the living room and the kitchen separated by large spaces. The living room area is comfortably furnished in a classic style, creating a unity for the building. The kitchen and dining room are neatly arranged and functional. The second compartment is 4 bedrooms and a multi-purpose room. Master bedroom with comfortable and luxurious design. The remaining three bedrooms use simple furniture but ensure convenience. Investors can rely on Feng Shui and members’ preferences to request neoclassical, classical or modern style of rooms, as well as the design of the location.

With an area of ​​114m2, the roof house is divided into 3 bedrooms, 1 bathroom with living room, kitchen, dining room and balcony. Construction cost is about 800 million VND. Photo: Nhasang. The 1-storey garden house has a playground design in the front, the rear is a garden space. In terms of use, the house consists of 2 bedrooms, 1 living room, 1 kitchen. Photo: Thietkethicongnhadep. The 1-storey Thai roof house uses the main white color scheme combined with brown tones and gray tiles to create comfort. The house consists of 4 bedrooms, 1 living room, 1 kitchen and 1 separate bathroom. Photo: Thietkethicongnhadep. The 1-storey garden house is divided into 2 blocks with the main house and the annex designed adjacent to each other. The main block is designed in a symmetrical style, this is a very familiar design of the countryside. Photo: Thietkethicongnhadep. The house is beautiful and elegant with the front roof designed with 2 isosceles triangles, 3 roof systems in the middle with white painted horizontal lines combined with a gray roof. Photo: Xaydungso Beautiful 1-storey townhouse with a modern and luxurious roof. Photo: Nhathauxaydung24h. The garden house model has European style with the main dark color. Car garage is built right next to the house, convenient for parking and riding. Photo: Thietkethicongnhadep. Thai roof houses are popular in the countryside with four-sided architecture with walkways and small front and rear gardens. Photo: Internet The traditional Thai roof design is popular with many people. Photo: Xaydungso The L-shaped 1-storey garden house model with an area of ​​​​100m2 is popular in rural areas. Photo: Thietkethicongnhadep. Video: House 25m2- opportunity to have a house for many people? Source: VTV24

After getting married and giving birth, the singer left Vietnam temporarily to go to Singapore to live with her family. Recently, she showed off the new kitchen in her living space with full amenities. Doan Trang and his husband spend a lot of time on the idea of ​​designing the kitchen as desired. For Doan Trang, the kitchen is considered a place for family reunification and helps keep the fire of marriage. The kitchen space is divided into many drawers. Each drawer holds different types of cooking utensils such as cups, cups, dishes, dishes … The kitchen has a modern, symmetrical design to help open a large space, family has plenty of space to decorate, especially when there is a party. The material chosen by Doan Trang is a green core melamine wood that is waterproof, moisture-proof and extremely durable. In particular, many items are imported from Europe to help make the living space more luxurious and sophisticated. In the kitchen space, many parts are designed in-wall to save space. The kitchen is designed intelligently and conveniently. In free days, Doan Trang’s family goes to the kitchen to cook and reunite. Overview of Doan Trang’s kitchen has warm, deep tones, is covered with wooden floors and has more decorative items. The singer revealed that she and her husband always have careful calculations before buying anything for their kitchen. Doan Trang is currently living a happy life with his Swedish husband. The couple shared sweet and warm moments. Photo: NSCC.

A pair of water hyacinths 1.86m high has been made by Mr. Nguyen Van Dai Duong for more than 4 years. Photo: NGUYEN TRANG Mr. Duong said: “The idea of ​​making water hyacinth from cans of water since 2012 and I started collecting cans throughout 2014 to obtain a large amount”. After collecting, Mr. Duong washed and coated the cans with a shade to keep them for a long time. By 2015, Mr. Duong started to design a hyacinth, he used thin aluminum wire to knit, connect to form the frame of the water hyacinth. After that, he continued to use water pipes with a diameter of 20cm to be inserted inside to keep the water hyacinth standing upright. He used a smaller water pipe 17-18cm in diameter inside the original large pipe, the purpose of which can pour water and flower arrangements. All steps on the frame, the inner structure is complete, Mr. Duong continues to make the more difficult process of connecting the cans together and the boss overlaps in succession. “I used yellow spandex and cut thin enough to pass through the hole in the can. Use at least 10m of fabric to connect 10 million pieces of cans for each water hyacinth ”. According to Mr. Duong, the hyacinth base, knotted areas are the most difficult. He had to be skillful so that the water hyacinth wouldn’t lose its symmetry when it was placed from the bottom up. He had to remove and install it many times to make the base of the water hyacinth. Mr. Duong also made a tea kettle made of colorful cans. He said, in the near future, he plans to make more products from cans. >> Some pictures of a pair of water hyacinths made from a bottle of cans. Photo: NGUYEN TRANG The pair of water hyacinths is made from a box of 1.86m high All are connected by yellow elastic fabric between the holes Mr. Duong has done many times to make the bars straight and even The cans are joined by yellow spandex. Mr. Duong also made a teapot made of a variety of colorful cans The cans arrange colors according to a predefined layout

It took more than 4 years, Mr. Nguyen Van Dai Duong completed a pair of unique bottles from millions of these cans of beer. Photo: Nguyen Ngoc A pair of unique bottles from more than 10 million pieces of beer cans of Mr. Duong is considered a “unique” product. The stand of Mr. Nguyen Van Dai Duong is 1.8 m high, with the widest diameter of 0.6 m. It took him about 4 years (2014-2018) to complete this pair of hyacinths. Photo: Nguyen Ngoc Mr. Duong said, the idea of ​​making items from beer cans has been around since 2010. Since then, he started to collect a beer brand from a beer brand to have a uniform color. Photo: Nguyen Ngoc Over the years of collection, Mr. Duong has millions of cans of beer. After a moment of thinking, he decided to turn the can of beer into a single pot. Photo: Nguyen Ngoc According to Mr. Duong, first create a frame for the pair to read the bottle. Next, he used a fine cloth, cut into thin fibers that were threaded through the cans of beer around the frame to create a unique vase. Making a circle around the frame takes thousands of cans of beer. Photo: Nguyen Ngoc “It only takes one thread to fail to disassemble and rework. The hardest part is the mouth and base. I have to be skillful and meticulous to be able to connect evenly, well-curled cans and not lose weight. It’s good to fold the cans, “said Mr. Duong. Photo: Nguyen Ngoc Mr. Duong’s unique pair of bottles from more than 10 million pieces of beer cans is considered a “unique” product. Many people came to see and offered to buy at quite a high price, but Mr. Duong did not agree to sell. Photo: Nguyen Ngoc

Hand movement is controlled by the motor cortex – the part of the brain’s surface that controls all movement. The left side of the body is controlled by the right hemisphere of the brain and vice versa. In the hemisphere, where the dominant side control has more connections between the neurons of the motor cortex – this can always be shown in magnetic resonance imaging by cell activity. nerve. In the past, it was thought that left-handed people simply redirected activity of the hemisphere compared to right-handed people, but that was not the case. For example, in 96% of right-handed people, the speech center and the hand motion control center are in the same left-hemisphere. In left-handed people, the speech center can be located anywhere: 70% of people are in the left hemisphere, 15% are in the right hemisphere, and the rest of the speech center is symmetrically distributed. worthy in both hemispheres. According to one theory, the left-brain hemisphere’s speech centers could evolve based on our ancestors’ right-handed gesture centers. Men are more left-handed than women Among men, 13% are left-handed, and among women -11%. In couples where a mother is left-handed, the child is usually left-handed. The explanation for this is that the mother’s behavior is imitated by her child during childhood development. By repeating the movements of the mother, the child can become left-handed. Researchers have tried to determine whether signs of right-handed or left-handed people are related to gender. It is impossible to determine this with certainty, but there is reason to believe that the development of right-handed and left-handedness can be influenced by sex hormones: testosterone androgen testosterone and dihydrotestosterone. Left-handed and right-handed people can feel the world differently There is a basis to believe that left-handed and right-handed people perceive the world around them differently. In a classic experiment: two boxes were placed in front of two testers, they were given pictures of different animals and asked to place the animals in one of the boxes. Agree on a list of animals they like. As a result, right-handed people put their favorite animals in the box on the left, and left-handed people put them on the right. This means that left-handed and right-handed people perceive space differently: for left-handed people, the space on the left is associated with something good, for right-handed people. right hand – is the right side. Lefties tend to have a better artistic penchant – American rocker Kurt Cobain pictured here. Trying to be right-handed is not necessary In the past, left-handed people were often rehearsed for right-handedness: they tied their left hand behind their back, hit it with a ruler or took objects from their left hand and transferred them to their right hand. With practice, the lowercase script gets worse: in children, it often involves fine-tuning of precise movements in kindergarten and elementary school. But change often has a negative effect. Fortunately, coercion is no longer common now. Attempts to practice left-handed people can have consequences. In the past, it was believed that in this case, development of speech disturbances could arise, such as stuttering. However, researchers currently have not found evidence of this. But forcing a left-handed person to be a right-handed person can cause serious trauma, especially for children. A right-handed person can become a left-handed (and vice versa) in the event of an injured arm. Adults need more time than children to adjust to this. In children, the transformations last up to 6 years and they typically use both hands for everyday activities, but just as easy activities (like moving the pencil from hand to hand while drawing) . Are left-handed people smarter? In academic studies studies, left-handed people appear to be more gifted than right-handed people. To assess aptitude, different thinking tests are often used, which suggest an alternative or creative way of using something, for example, a pen. It is also believed that in creative industries related to art such as music and architecture, left-handed people have about 10% more. This can be explained by the fact that left-handed brains are more symmetrical so they can access the resources of the two hemispheres at the same time. However, it is not possible to officially confirm this hypothesis in systematic studies. Is right or left handedness related to genetics? Genetic factors are still inconsistent: the probability of having a left-handed child is 37% for both left-handed parents, when there is only one left-handed person – 22%. If both parents are right-handed, the probability of having a left-handed child is only 11%. But in most cases the vast majority of children are right-handed, regardless of which parent is right-handed. In 80% of the cases the twins are either left-handed or right-handed, but in 20% of cases one is left-handed and the other is right-handed. This shows that hand-handedness must be determined by a combination of both genetic and environmental factors. There is no specific gene for right-handed or left-handedness. It is generally accepted that the dominant hand is determined by a very large number of genes, each of which holds only a very small fraction and that their coordinated interactions are not entirely clear-cut. It is now accepted that left-handed and right-handed are genetically determined to be 25%, while 75% are by environmental conditions.

Odd nature Previously, science only defined the concept of crystals, treating them as solid objects with homogeneous unit cells arranged in a periodic structure. For crystals, a unit cell can only be in the form of a cube, tetrahedron, or octagon. From rock to diamond, all crystals in the universe contain 14 symmetrical structures, each of which consists of a base cell and many atoms arranged in a special way, in which the their position is repeated periodically in three-dimensional space. When the idea of ​​pseudocrystals appeared, people believed that they did not exist in nature, but were only synthesized in a laboratory. Because, certain order of the atoms in pseudocrystals does not repeat the period, giving them innumerable symmetrical structures. Decoding the pseudo-crystal mystery can help science find a solution to the origin of the universe. Science goes crazy about pseudocrystals. Countless theories emerged, some even believed that this strange matter was sent from a distant galaxy inhabited somewhere in the universe. The appearance of pseudocrystals changed everything, ushering in the era of researching a distinct form of solids existence, in which the atoms arranged seemingly regular but without repetition. Experts call pseudocrystalline an “unpredictable unknown” in the universe, breaking the inherent harmony of the world of microscopic atoms. Others say crystal imitation is like a stray note, being “dropped” into sentences deposited between notes in the right rhythm to make a difference. The difference is the non-periodicity of the pseudocrystalline, which lacks translational symmetry. The experiments revealed an interesting fact: when translationally displaced a pseudocrystalline sample, the resulting image does not match the original. This goes against the inherent nature of conventional crystals, characterized by translational symmetry that causes the unit cells to be arranged according to a clear pattern. Because they are not repetitive, the pseudocrystals create many forms of rotational symmetry, which can be observed from many different angles with the same original pattern. For example, Florence pseudocrystalline found in a meteorite falling in the Khatyrka region (Russia) has the form of a 20-sided polyhedron (dichotomy), allowing observations from 60 different angles. Unique minerals The uniqueness of the fragment of a meteorite containing pseudocrystalline Florence lies in the aluminum metal (Al) composition, which raises a big question about the mechanism of pseudocrystalline formation in the universe. Experts also found iron and copper, and compounds of the two metals and aluminum on the meteorite. This is strange because so far, copper does not react with aluminum, unless there is human interaction with certain catalysts, otherwise the “mother of Earth” always separates the two metals. this. The International Mineralogical Association (IMA) has recognized that this dichromatic pseudocrystalline carries a new kind of mineral, with a different chemical composition with the chemical formula Al63Cu24Fe13. In early 2021, experiments at the California Institute of Technology (CIT) investigating three oxygen isotopes confirmed that the pseudo-Florence crystal was most likely from a carbonaceous chondrites meteorite – a material unlike anything on Earth. , formed within hours of the solar system’s birth, is regarded as a space rock, albeit quite pliable. Accordingly, studying this asteroid opens the opportunity to learn about the time of the Sun’s birth. The discovery of many metal isotopes suggesting the formation of the Sun is related to gravitational collapse (the phenomenon of extremely rapid contraction of large masses under gravity), caused by waves. shock from the nearby supernova explosion. Man has always believed that pseudocrystals do not exist in nature because certain order of atoms in pseudocrystals do not repeat the cycle. Yet, science is focusing on decoding strange minerals from space to develop the theory of evolution of the solar nebula, thereby understanding more about the history of the universe. These are pseudo-dichroic crystals with the mineral stishovite (crystallized by dense silica), traces of ringwoodite in meteorites (formed when the olivine mineral is pressed together by extreme pressure and exposed to a medium less pressure), or rare metal compounds such as aluminum-copper and nickel-iron. The most widely supported view believes that metals appear first in the solar nebula, then suffer the “shock” from an extremely strong asteroid impact before “clinging” to the surface of the asteroid. undergoes undetermined reactions to form foreign minerals. Complex structure For the first time, science has admitted finding traces of pseudocrystals in a meteorite, marking a new stage in the race to explain the origin of this matter. The mystery remains, regarding the reason why pseudocrystals appear in nature, and the mechanism by which atoms in pseudocrystals form a complex structure beyond existing theory. From here, two opposing schools were born. The perturbation theory believes that pseudocrystals are made up of atoms in a chaotic state, randomly linked into symmetrical clusters, after which the clusters will flexibly interact with each other, making the pseudocrystalline a zero shape. stability, then gradually decay. On the contrary, Paul Steinhardt, professor of science at Technion University (Israel), proposed the possibility that the atoms in the initial pseudocrystalline attract each other and form clusters with the form of pentagons, hexagons or many “senses”. other. These “senses” are then under the effect of a mysterious force to interact with other “senses” around, forming a certain shape. At that time, the clusters of atoms are bound together, gradually falling into a non-periodic state, creating pseudo-crystal. This connection is scientifically described exactly the property of the Penrose pattern (a famous concept in architecture created by two types of tiles that seal a plane in a non-periodic style). Paul Steinhardt argued that the atoms in pseudocrystals form clusters of many “senses”. While examining Florence’s pseudo-crystalline structure, some evidence confirmed it contained a new pseudo-particle named “phason”, which reverses the atomic clusters, breaking the rules of bonding between them. when one particle interacts with other matter. This finding reinforces confidence in the possibility that crystalline pseudo-crystallinity is completely natural, and emphasizes Paul Steinhardt’s hypothesis as being valid. Besides, science is also very active in learning about the stability properties of pseudocrystals. Two proposed mechanisms, mutually reinforcing in the existence of pseudocrystals, include arbitrary mechanisms and entropy mechanisms (chaotic measurements – the origin for understanding the dynamics of galaxies and the universe). . As the entropy value increases, some of the atoms in the pseudocrystalline vibrate and spin, thereby trying out “spontaneous” bonds, in multiple positions before they are “locked” into a specified position. . Atomic clusters can also overlap, sharing atoms under the influence of arbitrary binding mechanisms. Research on the pseudocrystalline model in the laboratory found that the stability of this material depends on the electron / atom ratio. Therefore, science speculates that the electron possesses the ability to stabilize the atom clusters. However, more evidence is still needed to confirm the stability of pseudocrystals in nature. Obviously, the journey to decode the pseudo-crystal is still very long, with many difficult questions. How, for example, does aluminum, copper and iron coexist inside alloys to form unusual minerals. The presence of aluminum in some meteorite samples raises the question of the metal appearing early in the formation of the solar system. More importantly, whether there exist other types of pseudocrystals in nature, and what kind of forces “lock” the clusters of atoms together. Answering these questions will help science sketch a new picture for the future of physics, while moving closer to the solution to the greatest mystery of all time: this universe ultimately comes from where…