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      "body": "![](https://steemitimages.com/DQmPxQVDHkPvVNQ9tQ7xnHnJeo1wALVoqNeKP2mPkZB9Dvz/image.png)\n[source](![](https://steemitimages.com/DQmPxQVDHkPvVNQ9tQ7xnHnJeo1wALVoqNeKP2mPkZB9Dvz/image.png))\n\n\nTake a look at the world around you-if you have good eyesight, you will see everything is absolutely shiny. The digital photograph of the object or TV or computer monitors that you see directly on an object, the image of that object is never so clearly visible. If you see a few inches from the TV screen, you can see thousands of color dot pixels and may see the picture flickering.And that's why high-definition television is used to get good image quality - which is briefly said, HD TVs. Compared to the normal TV, HD TV's picture quality is very shy and does not flick the picture. Besides, movies on HD TVs are seen in their original Wide Screen Resolutions and there is no black screen on the four sides of the screen. So how does HD TV produce so much clean picture on such a big screen? -Let's know the details .\n\n\nEyes, TVs and digital cameras\n\n![](https://steemitimages.com/DQmZ8BwSssQGsTAibUukZSXiFAya76vQCVF3e4x4M5yTeX7/image.png)\n[source](![](https://steemitimages.com/DQmZ8BwSssQGsTAibUukZSXiFAya76vQCVF3e4x4M5yTeX7/image.png))\n\nWe have 130 million cells to detect light in our eyes, which are called Rhodes and Kos. That means our eyes in the digital camera is 130 megapixels. An image of retina in our eyes than an extremely high quality professional digital camera is about 10 times higher resolution. That is, today's TV screen, computer monitors and whatever is not able to produce better picture than our eyes.For many years television technology worked on analog signals and TVs were dependent on cathode ray tube or CRT technology. The TVs were working through an endless radio signal, and this radio signal was transcribed to video and audio. This analog signal came from antenna or satellite on the TV.In the DVD player, the digital signal was turned into an analog and displayed on TV. Anyway, it's a long time ago, though many people still have bigger TVs in their homes.\n\nAnalog TV is never able to provide Better Picture quality. These TVs are about 700 pixels in length and approximately 500 pixels flat (actually have 704x480 resolutions) and analog TVs are called SD TVs or Standard Definition Television, which can produce a 0.33-megapixel motion picture. That means if you have a 3 megapixel camera, it can generate 10 times better picture than an SD TV.\n\n![](https://steemitimages.com/DQmQnF1A4ZtfQ5nmPx3aPPEKy7bgkhLB29tYzT4J4mLxabL/image.png)\n[source](![](https://steemitimages.com/DQmQnF1A4ZtfQ5nmPx3aPPEKy7bgkhLB29tYzT4J4mLxabL/image.png))\n\nAnalog signal and CRT television working in this technology are never too advanced and some are seen to flick the picture on the TV. However, analog TV comes after digital television or dtv The DTV works on Ultra High Frequency or UHF and since it catches digital signals, it can offer great quality picture on a small screen.\nDigital TV's broadcaster can broadcast multiple signals in the same frequency, and does not transmit another channel with a channel.\n\nMore pixel = advanced picture quality\n\n![](https://steemitimages.com/DQmetJ4jN43bKeUXk926o4J6e4sDBzZZSmNHSTg6fF6M48F/image.png)\n[source](![](https://steemitimages.com/DQmetJ4jN43bKeUXk926o4J6e4sDBzZZSmNHSTg6fF6M48F/image.png))\n\nCurrent TVs work like digital cameras. Even if you are looking at the current computer monitor, if it is HD, then maybe 1366x768 resolutions or 1920x1080 will be resolved.HD resulence is usually 1280x720 pixels (720p), which is like a 1 megapixel digital camera and is 1920x1080 pixels (full hd or 1080p) which is like a 2 megapixel digital camera. The old computer monitor or CRT monitor or TV's resolution was 800x600 or 640x480.\nFrom a little front of the old monitors, the dot dot could be seen from the front, which seemed to look like a brick in a brick wall.\n\n\nDoes HD TV mean HD picture?\n![](https://steemitimages.com/DQmXCa7WeT3DhU6JG5emKUK9vuUSYAFQWDRaTGQpZisq1E1/image.png)\n[source](![](https://steemitimages.com/DQmXCa7WeT3DhU6JG5emKUK9vuUSYAFQWDRaTGQpZisq1E1/image.png))\n\n\nYou can only see HD quality images on HD TVs when HD pictures will be sent through its signals. That means Broadcasted Picture Resolutions must also be 1280x720 or 1920x1080 pixels. Picture quality of the DVD player is less than the HD TV, but the Blu-ray player is capable of providing a great quality picture.\nSo what do you need to get HD TV? You can not play HD on old SD TVs. Kenona SD TVs and HD TVs work completely differently, they work in different resolutions, work in different aspect ratio and work on separate signals. Again you will not be able to enjoy HD TVs on the normal digital TV.\nTo enjoy HD TV, you will need an HD TV set and will need HD decoders. The HD decoder can be a Blu-ray player or set-top box.",
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      "author": "afnan97",
      "permlink": "remote-control-or-how-to-control-the-equipment-remotely",
      "title": "Remote Control | How to control the equipment remotely?",
      "body": "![](https://steemitimages.com/DQmNu6VfRQWA7MxE6Er96wXxHsDHEadnbkNmoPr3eARtiEq/image.png)\n[source](![](https://steemitimages.com/DQmNu6VfRQWA7MxE6Er96wXxHsDHEadnbkNmoPr3eARtiEq/image.png))\n\n\nDo remember the stories of Libaba and its 40 thieves, where Eliabah would open the door to open the door and say, \"Open SIM sim\"? Fortunately now there is no need to say no keywords to open a door, but rather a hand-cut small \"remote control\" through which the workshop doors open or change the channel's channel or any gadget can not be controlled far enough.\nSitting in the sofa and watching the TV lying on the couch would never have been so much fun, if this small device did not help to change the channel and down the volume. But have you ever wondered how this divan is able to control everything from a distance? In today's article, we will learn about remoting and various types of remote. So what is waiting?\n\nHow does remote control work?\n\n![](https://steemitimages.com/DQmPY8WVrsJkBdtgywhc2xQTcFaQxECQwd3QYuCPHiN9Jxy/image.png)\n[source](![](https://steemitimages.com/DQmPY8WVrsJkBdtgywhc2xQTcFaQxECQwd3QYuCPHiN9Jxy/image.png))\n\nThe most interesting thing about remote control is that no one is fitted. It starts working when you look at the diameter which you want to control! Much like magic. The remote works mainly using a wireless signal, which is called electro magnetic waves. Not just your remote, with radio,\nX-ray machines, microwaves, etc, work using electro magnetic waves. Through the wind, this wave trembles with electric and magnetic energy carrying it at the speed of light.\n\n\nMost of the remote controls, perhaps you also work on infrared radiation. Looking at the top of your remote, you will see an LED bulb, from which these infrared radio waves are fitted. The remoteness of your hand is usually a transmitter and a receiver is installed on the TV or on the other side,\nIt works by receiving infrared signals from the remote. When you press a button in your hand remotely, an infrared signal fits from the remote to the wind speed and detectors detection it.\n\n![](https://steemitimages.com/DQmSn76bwW532JTk3rLD8ydAv1mRr5MoGDWEN5uMqkAPxdF/image.png)\n[source](![](https://steemitimages.com/DQmSn76bwW532JTk3rLD8ydAv1mRr5MoGDWEN5uMqkAPxdF/image.png))\n\nThe human eye never sees in the infrared light, even if you push the remote control closer to the eye, but you can not feel anything. I wrote in an article discussing night vision glasses that all the lights are not visible and some animals have the ability to detect infrared light.\nRattlesnake has the ability to detect infrared-and, through this power, in the dark whirlwind, they find food through prey infrared waves from the victims. However, this snake can detect infrared, do not worry about removing your TV and controlling it. Because the way the remote or any remote work on a TV remote is a little different.\n\nRemote Control Code\n![](https://steemitimages.com/DQmTfMPc3TM9DB8PuSKdbKsGdxMnAU6ntYsNy865JVMfYEi/image.png)\n[source](![](https://steemitimages.com/DQmTfMPc3TM9DB8PuSKdbKsGdxMnAU6ntYsNy865JVMfYEi/image.png))\n\n\nIf no remote is going to generate infrared signal only then it will not work. There are at least 20 buttons on your TV remote, so remote control must be done so that each of these buttons can produce a separate signal to press and the TV can understand it.\nRemote Control also works on banners like computers. When you press a button on the remote, it either sends an off or off signal, where on 1 means the off and 0 means off. Remote collects some pulse together and sets the pulse in a different method in each button. Suppose, when you press the volume up button, it's on-off-of-on-off signal,\nNow it is converted to binary 10110. That means when a remote receiver in the TV catches the 10110 signal, it will make up the volume of the TV. This is exactly how different signals remotely for different buttons send to the TV and accordingly TV works.\n\n\nRemote type\n\n![](https://steemitimages.com/DQmYiB8UUBLZGoppBUyA5zgCrn59P3dcGuvFEKmLvH3Xbtm/image.png)\n[source](![](https://steemitimages.com/DQmYiB8UUBLZGoppBUyA5zgCrn59P3dcGuvFEKmLvH3Xbtm/image.png))\n\nSo far the infrared signal that was discussing the remote was actually known as IR Remote. IR remote works very little and the signal can send signal up to 40-70 feet of distance. Its radiation is very low, but it does not have the ability to penetrate a thick wall like a radio wave. So if your TV set is in another room, it is impossible to control it using IR remote from a separate room.\n\n\nThere is another kind of remote that is called Radio Frequency Remote or RF Remote. Remote doors, various toys, high quality home theater, satellite receiver etc. are controlled with the help of remote remote working on radio remote technology. There are two advantages and disadvantages of using radio remote. The disadvantage is that your cellphone, waxy talk, WiFi, etc. all work using radio signals.\nAnd since the radio does not send the remote infrared signal to the radio signal, its signal can be interconnected with the signals coming from different devices. However, the current RF remote signal is blocked by using different frequencies to block and the signal will be sent with its address. RF remote control is one of the biggest advantages of its working range. It can be controlled by controlling equipment that is 100 feet away.\n\nThere are more types of remote, such as Bluetooth Remote Generally Bluetooth is used on PCs, USB requires a receiver to be installed and PC is controlled by a transmitter. But compared to a radial RF remote, the range of remote systems based on Bluetooth technology may be lower.\n\n\nBesides, a remote is using some other thing that can be taught to remotely so that the remote can act like a remote. This is called remote learning, if you have a learning feature in your remote control, then you can provide any Remote feature to your remote. Each learning remote is remotely universal-it has the power to act like any remote.",
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{
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      "author": "afnan97",
      "permlink": "self-driving-cars-or-the-detailed-technology-behind-the-driver-behind-the-driver",
      "title": "Self Driving Cars | The detailed technology behind the driver behind the driver",
      "body": "![](https://steemitimages.com/DQma47ae5fM5AhcpM1gtpBFxiGkwdLENDrdF9E6XhAYoquy/image.png)\n[source](![](https://steemitimages.com/DQma47ae5fM5AhcpM1gtpBFxiGkwdLENDrdF9E6XhAYoquy/image.png))\n\nGet a new car and press a button in the diameter, your car will start to run - the most interesting thing here is that there is no driver required by you, the car's diameter will run on its own and securely reach your destination in your destination. Although it sounds like a science fiction and futures tech, it is now living technology with the Google Self-driving car project.\nBut now it is not just Google but more than 19 companies; Tesla, Uber, Wemo (Google), Toyota, BMW, Volvo, Nissan, Ford, General Motors, Daimler, Audi, Baidu (Chinese Search Engine), Honda, Hyundai, Auto Supply Company, PSA Group, Start Up Faraday Futures Leico, working on a car without an Apple-driver And if you get the expected result, then the driver of this free driver can be seen on the street by 2021. But the question is how can a car drive itself without a driver? What are the drivers behind the driver Les and how safe is it for us? Let's know the details.\n\n\nSelf driving car\n\n![](https://steemitimages.com/DQmPH3yubtcfpNNuvBssyYFzF1knQ5qf8jdCGR9RZjc7fGg/image.png)\n[source](![](https://steemitimages.com/DQmPH3yubtcfpNNuvBssyYFzF1knQ5qf8jdCGR9RZjc7fGg/image.png))\n\nEvery year around 1,250,000 people in the world, 20,000 people in Bangladesh, 200,000 people in India and an average of 30,000 people in the United States die in road accidents. When it comes to driving, we humans are really bad to drive.\nDue to drunk driving on him, driving to drive, talking on the phone, etc., all of the disadvantages of the accident. But machines can prove to be a better driver than humans - they do not drink alcohol or talk on mobile, and secondly they can think faster than humans and decide.\nAnd I will discuss this article at the end of the article about how good the machine is and how smart it can be. Now let's learn more about the driver of the driver's license.\n\n\n\nHow does it work?\n\n![](https://steemitimages.com/DQmcwci1TeaUQAptLa8mvVfWUj8YXPKnrpJnU71ERYuFZZA/image.png)\n[source](![](https://steemitimages.com/DQmcwci1TeaUQAptLa8mvVfWUj8YXPKnrpJnU71ERYuFZZA/image.png))\n\n\nIn this article, we will discuss how Google Self-Driving Car Project Wemo works. See only GPS data can not be enough to drive a car accurately, the Kona GPS is not able to provide such a perfect navigation. For drivers without a driver, there are some more sensors that will work with special software and GPS to ensure safe travel.\nThe best thing to do in the field of self-driving car technology is the use of technology that is used in some or all of the world, these are not new or untested technologies which can cause risk.\n\n\n\nFirstly, a Leader (LiDAR) sensor is installed on the car; Which works on a complete remote sensing technology. Simply put, it's like a 360 degree camera that has 32 or 64 laser formats. The leader knocks on the laser beam in front of the vehicle or in front of all objects, and if the beam is returned to the vehicle sensor, then it is the object And able to detect the actual distance between the car and create a 3D map. In this way, the concept of a car in front of the car or any object is accepted. In addition, self-driving continues to follow the straight line of the road, where we drive more people.\n\n\n\nIn addition to Leader, the driver is the second eye in the Les Carriage with wide screen High Standard Camera. This camera always keeps an eye on the environment around the car and helps to avoid danger. This camera especially focuses on pedestrians, cyclists, and other drivers. Apart from this, self-driving car sees different road signes and carries attention to traffic signals.\nIn addition, four radar units are installed in the car so that there are two sensors on the front and two sensors on the rear. These sensors keep track of the car's speed and the speed of the car around the car. Also, the signal from the signal radar to the processing unit (vehicle bren) is sent when your vehicle will run fast and when to slow down or when to break.\n\nSoftware for real-mindedness\n![](https://steemitimages.com/DQmcpWVotApvakEmonwjqNDkxYFZyq2dTqHV6zfEH4bsTRL/image.png)\n[source](![](https://steemitimages.com/DQmcpWVotApvakEmonwjqNDkxYFZyq2dTqHV6zfEH4bsTRL/image.png))\n\n\nSo long I talked about various types of car hardware and all the sensors that were fitted with it. The data from different sensors in the vehicle is processed by a specially intelligent software and in real time He decides his decision. Some cars have to be processed by applying their artificial intelligence, and some data results are strictly programmed, for example, when the traffic lights become red, the car will stop once, there is nothing to worry about. Moreover, using the driving driving car, the Artificial Neural Network, using the previous driving expire, you can take better decisions on current driving.Not only is it the safest and safest way to drive cars, but without the driver, this car uses its own advanced machine learning algorithm to make a right decision. For example, in front of your car and other cars are running slowly and the roads are quite empty, but in this situation, your car will speed up and overtake the front-end vehicles. Moreover, the car will always find more requirements to run on the left side of the road.\n\n\nHow safe is the self-driving car?\n![](https://steemitimages.com/DQmWAUuDiE1JT36Nua118uDdh7YRgJXLyEc2iwFQUL5Jj6w/image.png)\n[source](![](https://steemitimages.com/DQmWAUuDiE1JT36Nua118uDdh7YRgJXLyEc2iwFQUL5Jj6w/image.png))\n\nThis is the biggest question; How safe is the car to run by a robot? I have already mentioned that, on an average, around 1,250,000 people, 20,000 people in Bangladesh, 200,000 people in India and an average of 30,000 people in the United States die in road accidents every year, and all this accidents happen in people's driven vehicles.\n\n\nGoogle claims that about 94% of accidents happen only due to the individual's own decisions and mistakes. In this, most of the accidents happen for driving cars, drinking alcohol, talking on phones, and dark night. Google Self Driving Who has already crossed the road of more than 2 million miles without causing any accidents. There is no fault in the accident that happened to Google, but it has become accident due to people driven.And to tell the truth, the Google Vemo car is still free of accidents, and this could be the main reason for choosing which of the self-driving cars.",
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      "title": "Nano Technology | How is a new world possible from molecules, atoms?",
      "body": "![](https://steemitimages.com/DQmXHRvTG7WmvVaAZvvMx8PS3gLXjomniYvnSjpQn5SDWyS/image.png)\n[source](https://storage.googleapis.com/techubs-cdn/2017/01/nano-teh-feature-img-th-740x484.jpg)\n\n\nIt is difficult to guess even a dream of a world - we do not even dream of its features. Take a look around your room, take a look, see what? Your computer, chair, table, your bed? Let's think of yourself 20 times smaller - what will you see now?\nMaybe there's one on the floor and you'll feel like a gigantic building to see your table. But if you have been reduced to 1000 million times, what will you see? Will you have a chair or a table? Rather you will see things by which your chair, table, consists of everything in this world; Molecules, atoms, proteins, cells etc.\nIf your drawing is taken to the nano scale, then you can see the electron proton orbits around the atom rather than no atom or atom. Now suppose you use an extraordinary technique to change the structure of atom (atom) or atom of an object with the formation of another atom, what would happen? In fact, all the extraordinary materials that have never existed before will ever occur.Starting today, from a new disease medicine to your computer's super fast processor and creating all the extracurricular materials, there is a small technology that is known as \"Nanotechnology\" and it is the most amazing pattern of current science and technology. So let's know all the details about Nanotechnology today ...\n\n\n\nHow big is this \"Nano\"?\n\n![](https://steemitimages.com/DQmdz2AR1FznP3YpSC4vCPTSDEGaTUSYbmBydrz1GrSYvS8/image.png)\n[source](https://storage.googleapis.com/techubs-cdn/2017/01/Comparison_of_nanomaterials_sizes.jpg)\n\n\nCapture a photo using your smartphone or any camera and open it with Photoshop. Keep zooming in the photo and zooming, the photo will become dull once and finally it will be seen just like the brick wall. Each of these four blocks blocks is called a pixel,Which contains the description of a photo and together with all the pixels, a complete photo is created. In the same way, everything around you is completely formed by the very small element \"atom\". Starting from the chair table, your body consists of a very small particle called atom. Each element has a part of its magnitude in the atom of each element, as each photo has different colors in each pixel and a photo is created together.\nThe key theme of Nano technology depends on the object; Let's talk about the matter in the structure and its molecule, the structure and properties of the atom, let us now take the idea of ​​nano drawing.We are familiar with a world where we are accustomed to measuring meters, kilometers etc. It is really hard to imagine the painting of something that is so small that it can not be seen in sight. However, the Nano is small, but it is larger than a single atom. An atom's radius is approximately 0.1 nano meter and an atom's nucleus There is a smaller size, which is about 0.00001 nano meter. The subtler and mathematical subdivision of the science department has come to the conclusions about nano meter and its drawing, but try to give another example for everyone's understanding. Think you have an apple in it and hold it is 1 nano meter, how small is it? To compare 1 nano meter with 1 meter, if your apple is a nano meter in your hand, then all the earth will be one meter, do you understand?\n\nNano Scale-\n\n![](https://steemitimages.com/DQmbqp5QmQ6uEMvCKfUXPNno67K89BwvCo4xjEgC6azeziH/image.png)\n[source](http://trickmela.com.bd/wp-content/uploads/2017/12/Nano-technology-810x405.jpg)\n\nAtom; ~ 0.1 nanometers.\nAtoms in the spirit; ~ 0.15 nanometers are covered in part.\nDNA double-helix (DNA molecule); 2 nanometer diameter.\nStandard protein; ~ 10 nanometers long\nComputer transistor (by which computer processor or memory is made); ~ 100-200 nanometers wide.\nIdeal bacteria; ~ 200 nanometers long.\nHuman hair; 50,000-100,000 nanometer diameter\nA paper; ~ 100,000 nanometers thin.\nA girl is 1.2 meters (4 feet) tall; ~ 1,200 million nanometers long.\nA boy is 2 meters (6.5 feet) tall; 2,000 million nanometers long.\nEmpire State Building; 381 meters (1,250 feet) tall; ~ 381,000 nanometers long.\n\n\nNano Technology from Nano Science\n\n![](https://steemitimages.com/DQmXkAAdmiB4zYVpAxnYbsSrB42a5wgi678vaBxoa1bYDK9/image.png)\n[source](![](https://steemitimages.com/DQmXkAAdmiB4zYVpAxnYbsSrB42a5wgi678vaBxoa1bYDK9/image.png))\n\n\nDo you remember the Google Map Satellite View? Where in the early days, our world seems to be a big round of blue green. Because of the green trees and the ocean on most of the Earth's surface, a blue green appears to be bigger round to see the earth from a distance. Now start zooming on the map, gradually many countries will be watching, after that the country's cities will be noticed and then there will be a particular city on the screen.\nNow start zooming on the city, an area will come and finally the zoom will end on a mansion or a house. But is this the last end of the world, that is the smallest element in the world that this planet has been created? Of course not. Nano science is used to look at things smaller than our normal eyesight. Now let's go back to the Google Map which ended on a mahalla.Now let's go zoom, maybe a field of mahalla can be found on the mahalla and once zoomed, one can stop at a grass. The idea started with Nano Science and started to zoom the grass. If zoomed grass, plant cells can be seen in it and it can be seen how it is making food for themselves with sunlight. If you do more zoom in this way, you will see that the plant molecules are carbon, hydrogen,And the oxygen is composed of a combination and once everything is split up. So this is Nano Science, which helps us to understand from the very roots that how each element is made and its core is what it is.\n\nUse of Nano Technology\n\n![](https://steemitimages.com/DQmSeSv9ZpL2AA6afmR9JSCkZbahzYbKt3ANoL7a4xmH5su/image.png)\n[source](![](https://steemitimages.com/DQmSeSv9ZpL2AA6afmR9JSCkZbahzYbKt3ANoL7a4xmH5su/image.png))\n\nMost of the advantages of Nano technology can be seen in the future, but in the future, this technology is helping to change the world in different ways. You might think Nano Technology is a great thing at once and it's a whole new technology-because \"technology\" means we think of the human technique. But our life itself is a great example of nanotechnology. Our bodies work in proteins, viruses, bacteria, cells, etc. in the form of nanotechnology.\nMaybe you are currently using Already Nano technology. Maybe you wear nanotechnology pants or your shirt is made in nanotechnology. Even from your bed linen to the traveling bug, it is also ready for nanotechnology. Made of nanotechnology, the fiber of the fabric is so fine that it can not contain dust sand particles,\nThe resulting cloth is much less messy. Nanotechnology is used in some branded sunscreen creams, just because the cream is applied to your skin, it only puts titanium oxide or zinc oxide overlay, so it blocks the sun's harmful ultra violet rays. Many paintings made in nanotechnology work in this way, so it is more lasting and less corrosion.\n\n\nCarbon Nano Tubes is the most outstanding Nano material. As a result of its Atomic formation, it turned it into a very strong substance. It is possible to make any taller measurements in fiber drawing. Besides, you can read this article to find out more about the most powerful materials.",
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      "author": "afnan97",
      "permlink": "what-is-5g-how-different-is-it-will-the-5g-really-change-the-world-of-technology",
      "title": "What is 5g How different is it? Will the 5G really change the world of technology?",
      "body": "![](https://steemitimages.com/DQmUr5DkAwoURr5X9U3NN2MgGL4rhsAsjhPdur17V1j6pQf/image.png)\n[source](https://storage.googleapis.com/techubs-cdn/2017/02/567507f8-5g-techubs-feature-img-740x491.jpg)\n\n\nWe all love to have great speed internet, and this is why telecom companies need to work on increasing the internet speed. From the smartphone to the car, smart watch, home etc. everything has become very necessary and certainly they are spending more bandwidth.So, in order to make wireless internet more prosperous and to make using more bandwidth together, 5G has appeared in front of us with some extraordinary technology. But being a taki person, you must know that this technology is new? How different is it from 3G or 4G? Or just mobile operators have another marketing term?\n\nWhat is 5g\n![](https://steemitimages.com/DQmZvC59cQA3rRAMDSoXEpMtNHMkJcrFXYcw8istC8QKVX5/image.png)\n[source](https://cellwaves.net/wp-content/uploads/2017/08/5g-city-future-1024x683.jpg)\n\nHere in the sense of \"Generation\", the \"Generation\" is meant, and Wireless companies started their journey from 1G as it was. Then came 2G, where it was possible to send text messages in two mobile devices for the first time. Then came 3G, which allowed text messages, calls, the internet to browse a little differently than ever before. 4 win 3 all the advantages are confusing, only more speed has been increased,It is possible to easily connect any large size file and at the same time many devices can be connected together. After that, LTE technology came in front of 4Gs faster, which made 4G technology more rich. Read this post to know more about 1G, 2G, 3G, 4G!\n\n![](https://steemitimages.com/DQmbj7DZ8KJ8nfaeRYioSqaHDtXCcLcJpfqSNvDKisfLNyT/image.png)\n[source](https://i0.wp.com/www.rcrwireless.com/wp-content/uploads/2016/12/5G-phone-altered.jpg?fit=720%2C424&ssl=1)\n\nThe bandwidth speed more than a few hundred won 5 out of the current 4G technology. Typically, this technology can achieve 1-10 + Gigabit / second speed, and the most interesting thing is that only 1 millisecond latency will be there. So you can understand how using the 5G technology can dramatically increase Internet speed! With the help of this technology, it will be possible to download or upload videos to 4 and those who are gamer are going to have a breakthrough change.Another great feature of 5G technology is that it will spend 90% less energy. Those who use cellular internet for 3G or 4 winners, surely they know how fast the charges are exhausted after getting connected to the Internet. But the 5th will not be such a thing, using this technology can cost a lot to use WiFi.\n\nWith 5G technology providing the ability to use fast bandwidth-it will depend on how much mobile operators will give us. And since the 5th question is about bandwidths, then now it is expected that mobile internet companies will not think of selling 1GB to 200-300, they will have to reduce their bandwidth price,Besides, how will the public spend so much bandwidth? And if we are really lucky, then real internet plan can be seen on the mobile internet after 5th, and yes of course, without the Fair Use policy.\n\n\nHow does it work?\n\n![](https://steemitimages.com/DQmTDG2n6Uoi8Cw2qnKXaMKNgcGhXpErTek4dVB9Ym15xL8/image.png)\n[source](https://r.hswstatic.com/w_907/gif/5G-tech-1.jpg)\n\nGenerally, after the advent of new wireless technology, the use of the Hiaiar Radio Frequency is used to handle that technology properly. Currently, up to 20 MHz of radio frequency is used to operate 4G technology. But in 5 wins, up to 6 GHz can be done by increasing the radio frequency. New wireless technology is always the reason of using more radio frequencies because it provides the ability to transmit more bandwidth.But the problem is that increasing the radio frequency increases the bandwidth speed but simultaneously decreases the range of radio signals. Because of this, many inputs and output antenna are used to boost the signal.\n\nNot only the high bandwidth, this technology has been specially designed to connect a lot of disks together. Think of the Internet of Things, where each of your home electronics devices or electrical devices are connected together. 3G or 4G like 5G technology is not limited to just the cellphone.5G chips can be installed on your virtual reality headset and your computer will also have a chip, so the two divisions can easily be used to connect with each other using the same technology. 5G technology can be used in any device like WiFi, not just phones and cell phones, but for connecting the two devices.\n\n\nWhen will 5G?\n![](https://steemitimages.com/DQmbYreJjd4tPuvdhpHJUUfuaL61FucgAxV1sG7GrKGqKVC/image.png)\n[source](https://telecomdrive.com/wp-content/uploads/2018/03/5g-network-696x435.png)\n\nNo wonder- this technology has arrived in our midst and this service has been introduced to test in some places in the United States. This week Verizon announced a large mobile operator 5 GKAmericans such as Texas, Oregon, and New Jersey to provide trial services. Besides, considering the idea of ​​running a lab in the lab before giving it another mobile operator, 5Gee, as a trial.\n\nAlthough these two large internet companies and mobile operators of the nation are already thinking of launching 5G services, it is not right for us to expect this much in the morning. Tell us what I mean Worldwide, not in Bangladesh (I did not get good 3gai, then there is 4G, and 5G's dream). However, according to most experts, this technology will not be available in the Worldwide way before 2020. But hopefully, many operators of many countries will work on this new technology by 2020-3030.\n\nFuture?\n\n![](https://steemitimages.com/DQmeTgkWujUQP5Uz5qEpPq82pSv5rtJuiH9pf5hK6ERK6hR/image.png)\n[source](https://3c1703fe8d.site.internapcdn.net/newman/gfx/news/hires/2014/5gisnot4g1.png)\n\n\nThere is no doubt that this technology will provide a well-guaranteed future for mobile internet technology. Due to the ability to handle high bandwidth, this technology may not only own the mobile internet but also occupy its place on the home internet. You do not need to engage with a large cable and use the internet. Any high end work will be possible from mobile internet. Think of the rural areas, who are deprived of access to high-speed internet access- Because Internet companies are not able to afford broadband cable, or fiber optic cable in rural areas, spending millions of dollars. After the introduction of 5G technology, rural people will also be able to get access to Gigabit / second internet and internet operators will not need to spread it.\n\n\nOn the other hand, mobile internet latency is very poor - with 1 ml second latency, this technology can be popular for gamers. If you have been gaming online then you must understand the essence of latex. Moreover, when a device is connected to another, latency may play a very big role at some point of time. For example, let's say about self driving cars,Where there is a need to be connected with a self-driving car, there may be more than a few millilitas of latency in life. 5G technology can help each device create more perfect connections between the devices themselves.\n\nThis technology will be able to retain more power by using less energy. Not only the phone but all the parts you want to connect to the internet will be able to store more. Moreover, this high-speed network technology will make your life easier.Just 5G modem connect with your computer or router and enjoy gigabit / second internet Even now Qualcomm and Intel have started to create chips for the 5G modem.\n\nMoreover, since this technology can be with phones and cell towers, but not with any device, it may be possible to transmit data from your computer's 5G chip to sync data to your phone, tablet and TV. Once again, you can play multiple TVs together with a gaming console.",
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      "title": "How does radar work? How to find hidden objects? [Techhab interpretation!]",
      "body": "![](https://steemitimages.com/DQmXhBqQZqmi2es2YrbrM5fsVhLvJ4hgpgJ76eas4V8v7Ru/image.png)\n[source](https://storage.googleapis.com/techubs-cdn/2017/02/radio-telescope-1031305_1280-740x460.jpg)\n\nImagine thinking of landing a huge plane in a crowded town on a dark night-but the problem is that there is a covered area around the fog, so how do you land the plane safely to find the empty space? You can not see anything! Plane pilots solve this problem using a device called radar;It helps to see an object hidden using a viewing medium or high radio wave. During World War II, one of the main improvements was made to fend off enemy aircraft. But today it has wide usage. Aircraft pilots use it when leaving a plane, while on air and while landing the aircraft. The police used it to detect bikes or cars running illegal speeds.Even to get a map of the world and other planetary satellites, NASA uses Radar to know the location of satellite. So let's learn more about how it works ...\n\n\nWhat is radar\n\n![](https://steemitimages.com/DQmQkzuJsxrXURvLx5QXKKP6hdYmwXtyY94VynF3Q62RDVp/image.png)\n[source](https://1.bp.blogspot.com/-FnvXgGYThqk/Wgn4pqczzZI/AAAAAAAADL8/4lVjHqgYfHcwPXub6p1rHV_TKZ-A1WPXACLcBGAs/s640/raisting-1010862_1920.jpg)\n\nWe can see any objects in this world due to light, which comes from the sun and reflects on the object and it comes to our eyes. Again, if you want to move to a place at night, then you can walk properly using the torch lights to illuminate the road.The light from the torch comes in front of the object and the light from the object reflects in our eyes; The result is to see the object. From the level of reflection of light and reflection of light, your brain can easily understand how far you are from an object and can move it easily to any passage accordingly.Radar works very much on the same subject. The word \"radar\" means that the meaning of the radio detection and ranging-and's name gives a lot of misconception, what does it work on. Suppose a plane pilot is moving along its plane in a dense fog, but he does not see where he is going, in this situation it helps them.\n\n\nHow does radar work?\n\n![](https://steemitimages.com/DQmXhBqQZqmi2es2YrbrM5fsVhLvJ4hgpgJ76eas4V8v7Ru/image.png)\n[source](https://storage.googleapis.com/techubs-cdn/2017/02/radio-telescope-1031305_1280-740x460.jpg)\n\nNo matter what the planes, trains, water vessels and wherever it is planted, it makes some rules unobtrusive and works using the same type of equipment. There are some components that help to generate radio waves, some parts help to throw that wave in the air, accept some returned waves, and some parts help in displaying various information so that its operators easily understand all the information.\n\nThe radio waves that are used in the radar are produced by a device called \"Magnatron\". Radio waves and lights can pass in the same speed; But the waves of the radio waves are very long and the frequency is very weak. The wave length of the light wave is 500 nanometers (1 meter to 500 billion times smaller), and the radio wave used in the radar is more than a million times the amount of light wave.\n\nBoth light and radio waves are but part of the electro magnetic spectrum, which means that electrical and magnetic energy exists between them and they are thrown into the air. Magnetron actually creates a microwave that is similar to the microwave. There is a difference between micro ovens; The wave generated by magnetrons can be sent up to several miles, meaning that its waves are strong enough.\n\n\n\n![](https://steemitimages.com/DQmP6nW23GkSzdLhWsgkYVSsiKKUANw6NKkshsgGnERnDok/image.png)\n[source](http://images.mentalfloss.com/sites/default/files/styles/mf_image_16x9/public/radar1.png?itok=f4BQJ1X5&resize=1100x619)\n\nOnce the radio wave is created, there is an antenna that acts as a transmitter and sends the wave to the front space. The radar rotates so that it can handle reflections from a large area. The radio wave spreading from the radar ran at the speed of light until it was tied somewhere. The waves reflected in connection with an object are returned at the speed of light. And this wave speed is certainly necessary,Suppose the enemy's aircraft is moving forward in 3,000 kilometers / hour, then there must be a fast system to catch it. After that the wave comes back to the delivery device and the alarm sounds. There is no problem at the time, Kenna's speed is equal to the speed of light, ie, if an enemy's plane is 160 kilometers away, then it will take 1 thousand times less than 1 second to detect it and return it to the wave radar.\n\nHow to avoid radar?\n\n![](https://steemitimages.com/DQmckdGotiktTxSYjFQ6r9ARiqw9hamrxt32CDdtkXAphwj/image.png)\n[source](https://vignette.wikia.nocookie.net/starwars/images/1/1c/Matt_the_Radar_Technician.png/revision/latest?cb=20160206214938)\n\nThe Radar is used with the dominant authority to detect enemy aircraft. But once you have a super-radar technology, which is capable of detecting any hidden objects, but surely your enemy also has it. If you have the ability to detect your enemy aircraft, your enemy surely has the ability to recognize your aircraft. In this situation, we need a plane that can secretly and hide it, and certainly not caught in the radar.The American Air Force has an ill-shaped aircraft named B2; The structure of this plane, which can absorb the beam from the radar, can not detect the radar any more.",
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      "title": "Bulletproof Glass | How to stop the bullets?",
      "body": "![submachine-gun-62902_1280-740x482.jpg](https://steemitimages.com/DQmTAuA1EmoBLhYFvRssoEJ8MFi2h66ekHnohJJxV5DXSrn/submachine-gun-62902_1280-740x482.jpg)\n[source](https://storage.googleapis.com/techubs-cdn/2017/02/submachine-gun-62902_1280-740x482.jpg)\n\nThe mind was lost in some place; How to protect yourself from bullets? There can be no more fast than the rifle or pistol guns, even the bullets that you can not see. This can be the only way to survive; There should be something in front of your body that will crush the bullet and stop it. And this is the idea behind bulletproof glass.At a glance, bulletproof or bullet resistant glass is just like any normal glass. The bullet-resistant glass is made to bear a few rounds of resistance, but how much of it can be prevented depends on how thin the glass is used, and the bullet used by a tool. The question is, having a feature in a glass prevents a fast super-fast bullet to look like a normal glass? Let's try to understand the detail science behind it ...\n\nBulletproof glass\n\n![Feature-Image-Cover-900x521.jpg](https://steemitimages.com/DQmcunJHVu8enV7Ah34kUwweRZKaGLg2k4LTsLV1VKoyWHw/Feature-Image-Cover-900x521.jpg)\n[source](http://www.forthecars.com/wp-content/uploads/2017/02/Feature-Image-Cover-900x521.jpg)\n\nThose who are reading this article, you are most likely to like cricket, and many may play very well. One thing surely must be noticed when the ball is in a hurry, there is a lot of pain in the hand when it comes to holding a dynamic force with your hands fixed. But no matter how fast the ball is, it takes a little less pain if you push your hand while holding the ball and move it back.To say mechanically, it takes less pain to change the position of your hand at the same rate of change in the force of the ball. So, when you take the ball, you will feel less pain as much as your arm moves away from the ball.\n\nYou do not have the ability to carry a normal glass like your hand, if someone shoots on a normal glass, the glass does not have the ability to swallow the power of firing or crooked; As a result, the glass can not bear the bullet injury, which does not change the strength of the bullet. And this is the difference between a normal glass and bulletproof glass.A solid glass is then strong plastic and glass again plastic is thus made up to many levels, this glass is made entirely and this process is called lamination. This process makes bulletproof glass much thicker than normal glass. The resistant glass density usually ranges from 7 millimeters to 75 millimeters.\n\n\n\n![maxresdefault.jpg](https://steemitimages.com/DQmRwJ3Vy4ggc8x2GQp1ut28uhMELNieHMy8P8c7T9GQ626/maxresdefault.jpg)\n[source](https://i.ytimg.com/vi/24Uz2OcbEmo/maxresdefault.jpg)\n\n\nWhen a bullet hit the bullet in the bullet, the bullets of energy are spread across the sideways. Because the bullet's energy is divided into several parts; Instead of just crossing a single glass, here's a tough glass together then a strong plastic glass again, again the plastic needs to overcome a few levels. Due to many layers, the bullet energy spreads all the way around and its energy is absorbed by different layers.The speed of the bullet does not remain the same as it is absorbed by the energy, it gets completely stuck in one level and the ability to penetrate the final layer before it is lost. Think Bulletproof Glass is a \"energy absorbent\" glass, but you can get a better idea.\n\nUse?\n![1200-17263023-broken-bulletproof-glass.jpg](https://steemitimages.com/DQmYKL2hnMHAswBR9TwMLgK6pvFZmcXyboo53o25WhwRJNe/1200-17263023-broken-bulletproof-glass.jpg)\n[source](https://pixfeeds.com/images/16/428589/1200-17263023-broken-bulletproof-glass.jpg)\n\nEspecially in areas where there is a need for strong security, bulletproof glass is seen to be used. It is widely used in banks and in the car's windows. Nowadays this glass is available in different sizes and different sizes. However, the glass that has the most layer of the glass will be thick enough and will retain the ability to hold as many rounds as possible.Maybe a thicker glass may be a problem in the bank, but when it comes to a president's car window, it can be protected as much as possible. Again, there is a problem with making the resistant glass more thick, it will be rotated on the other hand - there will be many layers to come through the Kano light.",
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      "author": "afnan97",
      "permlink": "how-does-flash-memory-work-computer-memory",
      "title": "How does flash memory work? - Computer memory",
      "body": "![flash-memory-740x493.jpg](https://steemitimages.com/DQmPMhvr9QAyRFPiZuLKfNdy99y4zYkB5qxXSdfXowx1gj6/flash-memory-740x493.jpg)\n[source](https://storage.googleapis.com/techubs-cdn/2017/03/flash-memory-740x493.jpg)\n\nThink of your memory as soon as possible - as long as you are awake; After waking up in the morning, forget everything else and can not recognize anything, how did it feel? Surely do not want to imagine this! The same thing happens with bat computer memory. You can remember your data as long as it is available on the computer, but as soon as the power is gone, the computer forgets all the data.In large computers, data is stored with magnetic power, which is called hard drive; It is able to remember the data properly after the electricity has gone. But portable devices such as smartphones, digital cameras, MP3 players, etc. are hard to connect to, so it is necessary to have smaller storage media smaller and more capacities.As a flash memory or flash storage, we can store files, music, pdf and not know how many types of files can be stored on a small sized storage. In this article we will discuss how Flash memory works and how to save your data permanently in the place it is forgotten.\n\n\nComputer data\n\n![Computer-Data-Recovery.jpg](https://steemitimages.com/DQmUVv6Hmk2opGjThpXHwHLjXjQMbsxwB66ZtAyjFAnvbkt/Computer-Data-Recovery.jpg)\n[source](http://www.cloudstoragebest.com/wp-content/uploads/2013/04/Computer-Data-Recovery.jpg)\n\nComputer and Electronic Devices work in digital format. You may be writing something using word processing software on your computer, doing any data read or write, but if you think that each job is different, the computer uses the same method to complete each of your separate tasks. That is why the computer does whatever you do on the computer, the computer works by modifying it in Zero or Owen.And to work in this Zero or Owane is called binary in the computer world. Suppose you typed the English letter \"A\" on the computer, this letter is \"A\" for you; But the computer can see it as \"01000001\" as 8 binary numbers. Thus, there are different binary numbers for each uppercase and lowercase letter. There is also a separate binary number for any number except zero or one.\n\n![computer-data-transfer-circuit_4elfkp7dx__F0000.png](https://steemitimages.com/DQmTYD8VHTDT6bFPeYAS3XRNPHWs6woCabmXxA8U1eK8TbR/computer-data-transfer-circuit_4elfkp7dx__F0000.png)\n[sourve](https://d2v9y0dukr6mq2.cloudfront.net/video/thumbnail/vfPFP3W/computer-data-transfer-circuit_4elfkp7dx__F0000.png)\n\n\nThat means that the command that you give to the computer or any data that will save the computer will keep the computer in a specific pattern of zero and anne. Now suppose you write \"techhabs\" on the computer and it writes in computer binary as \"111000111000\". But when you try to read this data from another computer, how will another computer understand your computer using any method or pattern using these binary numbers?Here I am writing Bangla article and you can know and read a Bengali or Bangla language, you know which word has any meaning and so you understand this post. But who does not know Bangla, can not read or understand the meaning, how can he understand the meaning of this post?In order to understand the same data on all computers in a similar manner, there is a need to create a binary pattern by following the same procedure. So all computers work using ASCII (American Standard Code for Information Interchange) standard.\n\n\n![technology-interface-computer-data-screen-footage-032186142_prevstill.jpeg](https://steemitimages.com/DQmR34Tu2BRRV7pWmcoVTgkPjFPSiuQ5GLAuoQvvrWMMmJH/technology-interface-computer-data-screen-footage-032186142_prevstill.jpeg)\n[source](http://images.pond5.com/technology-interface-computer-data-screen-footage-032186142_prevstill.jpeg)\n\nAll right, we knew that the computer only registers data by making a specific pattern of Zero or Owan, but how does this Zero and Wan keep the computer in its memory? Do not go with your computer, why not just see the computer as Zero or One and create the pattern according to the standard. That is to save the computer data to save the Zero and the one in the correct pattern.To save this Zero and WAN, there are millions of microscopic switches on computer memory chips called transistors. And you know that I or everyone knows that the switch work is turned on or off. These switches do the same thing here too. That means every transistor can be turned on or off, when a transistor is turned on it stores it one and stores the Zero off. To save 8 binary numbers in any memory, 8 transitors are required to be off or off and according to the correct pattern.Each zero or one is called a bit and one byte in 8 bits. So you hear that your computer memory is so megabytes or so gigabytes; It means that it can be preserved in millions or billions of letters. (Mega means million and giga means billions).\n\n\nWhat is Flash Memory?\n\n![8092c2cf3499e54b71ef3d17da8a017d.jpg](https://steemitimages.com/DQmZ24cWae54V7nJKfsZv7V9MT2vhxBZvvYwmbk4dBxfdBH/8092c2cf3499e54b71ef3d17da8a017d.jpg)\n[source](https://i.pinimg.com/originals/80/92/c2/8092c2cf3499e54b71ef3d17da8a017d.jpg)\n\nGeneral transistors and electronic switches are turned on or off with the help of electricity; This is one of the biggest advantages of this, and it is also one of the weaknesses. It is possible to save information on the convenience, on-the-go computer memory, with just switch off. The work is done after the flow of electricity through the memory circuit. And it's weakness; Because when the power flows off the transistors will return to the previous position and all the patterns you have saved will be forgotten.\n\n\nWhen the electricity goes away, all the data that the flash memory forgets is called random access memory or RAM. But there is another kind of memory that is called read only memory or ROM, but it does not forget to delete any data. But why not? See when the ROM is made or the phone memory card or the SSD is designed to create flash memory, it is already stored in the information of Zero and On One; So when the power goes away, it does not forget any information.Suppose that your memory card factory has been truncated in this pattern \"11110000\". Now you want to write a data that is binary \"11001100\"; Then the previous pattern of your memory card will be replaced by \"11000100\" instead of \"11110000\". Understand?\n\n![USB_flash_drive.JPG](https://steemitimages.com/DQma46ro7za17yG4hKsWEWrZR1kyXML7fqqhu6F8mrUip43/USB_flash_drive.JPG)\n[source](https://upload.wikimedia.org/wikipedia/commons/thumb/2/2c/USB_flash_drive.JPG/1200px-USB_flash_drive.JPG)\n\nHowever, there are various categories of flash memory for different types of computers. ROM memory is used when the memory stored on your data or permanent data. The memory that is always read or write and stores temporary data such as forgot flash memory is used in RAM. Large data on the computer is basically saved on the hard drive But hard drive can not read data right on the flash like flash memory. Flash memory is used instead of hard drive on portable devices.",
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