How do airplanes fly

We all know the various means of the transportation. Among the various types of the transportation the amazing transportation is by air. We all are familiar by the aeroplanes. We too may have travelled through it. If we see the physics towards the aeroplane structure and it's mechanism then we can conclude that it is very vast. Wright brothers were the one who first invented the aeroplane. He took off to 120 feet. He made his journey from north Carolina. At that time modern engines and technology were not available but today also the same concept has been applied to make the aeroplanes outer design and parts.
      First of all the thing to understand is the thrust that the air engines provide while moving horizontally. At first the speed is low and the drag is overcome. Drag is the air resistance that is provided by the air molecules and the thrust has to overcome this drag. Slowly and gradually the speed of the plane increases and more thrust is provided which falls on the two sides wings of the plane also called airfoil shape which is slight curve in shape let the air to move downward and according to Newton's third law of motion it state that to every action there is an equal and opposite direction and when the air moves downward the upward force is provided due to which the plane moves upward. It is also amazing to study that all normal force balance each other. Gravity is equally balanced by lift and drag is equally balanced by the thrust produced by the engine. Radar, descent and wings are responsible for all the moments in the plane. While changing the direction in the plane may cause some discomfort to the patience sitting in the plane. This happens due to the change in the motion as per by the inertia.
    Hence this is the short briefing of the science behind the flying of the airplane.

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Why water is needed to quench thirst

Well, water is considered to be one of the basic and important component to quench the thirst. About 70% of our body contains water only and rest 30% is only other components. When we perform various task the water is released out from our body in the form of sweat, peeing and also energy they release out from our body and there comes a imbalance state in which the hypothalamus of the brain senses the decrease in the amount of water. It helps to maintain the stable body condition so whenever there is some instability or decrease in the blood fluid level it reacts. Osmoreceptors which is present in the body helps to track the proper and equilibrium fluid flow in the body. Besides this the hypothalamus also inject vasopressin in the blood that signals the kidney to store adequate amount of water and when that stored amount of water is also spent slowly then we feel thirsty. We feel our mouth and tongue dry. There is a decrease in the concentration and more over we feel the muscle pain and pale face after sometime.
     In the same way the researchers have said that we should drink enough water but it also varies from person to person some people drink less water but also their pee is clear while some other drink more water but also they feel thirst and their pee is also yellow. According to the researchers it all depend upon what type of food do we take. Some of the people take more fruits and moist foods that make a good amount of water as they store water in it while some other may eat dry food that requires more water.
       We cannot take soda and other soft drinks to quench our thirst because they remove the more amount of sodium from the kidney that requires more amount of water after sometime to maintain the balance between sodium and potassium. Hence water is the best fluid which helps to quench our thirst.

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How touchscreen actually works

Today's world is the age of digital electronics. Digital world have made our life easier and comfortable. Besides this things the important component of the digital electronics is the touch screen. The curiosity is its workings. It is widely used in today's most of the electronic devices like mobiles, camera, tablets and many more. It is also considered to be a good source of security in the banks and the lockers as in the form of finger print touchscreen. Today most of the mobile phones used the touchscreen as a finger print security system. Now lets discuss about the working of the touchscreen.
          The touchscreen system is widely distributed into two types. The third type which is infrared touchscreen system is only involved in ebooks and other few gadgets. The basic system are as resistive touchscreen system and capacitive touchscreen system. The resistive touchscreen consists of a electrically two layers one of which is the resistive layer and other is the conductive layer. In between this two layers there is the scratch proof glass which is coated from outside. In between the two layers there is a spacer provided which hits the conductive layers when the finger is touched. The electric current and circuit is joined properly between them. It sends the electric command to do a particular task. This are very durable. On behalf of all this things it does not support or detect two fingers touching. Most of the mobiles and phones now have a eight finger detectors at a time. This is the only reason that the resistive touchscreen system is discarded. Now the capacitive touchscreen system consists of a layer that stores a very small amount of current in the four corner of the layer. We all know that our body also possess some amount of charge so when we touch the screen the sensor track to where the influence of electric charge is feel. We actually don't know the electric charge do not flow but it only feels. It gives the corresponding signal to perform the work. The third type of the touch screen is the infrared touch screen which works on the basic of LED and photo cells. It consists of many horizontal and vertical lines and the touch on it interrupts them so that the sensor could easily detect it. It gives the signal in the form of x and y coordinates.
     Hence this are the types of the touchscreen and their actual workings.

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Do astrology really works

The prediction of future by the positions of planets, stars and sun comes under the study of astrology. It is believed that the astrology first came into existence from Hindu. However today most of the people from the different countries study about it. From this the astrology became famous also now the question come do astrology really works? The answer is yes it works but not always. It sometimes works as per predicted because of the influence as made by the stars and other planets. It is also proved that various objects around us influence on our activities. We then behave and act like that object as per their effects. We have both positive and negative influence and if we take the negative influence then we will move in a wrong direction and if we take the positive influence then we will move in a positive and right direction. Various rays from the sun falls upon us in different angles and the birth timing helps to determine the position and the angles at which they fall upon the body. However they cannot do a right prediction always. No one can do the correct prediction all the time. We would never suffer from our horoscope but by our own fault. Until we do not accept this fact till then nothing can be change within us.
         In the past years also many of the research have been going on for the proof of the astrology but none of them were able to predict the future. In that study the horoscope of ten murderers and ten citizens were brought and the astrologers were made to know who were the murderers and citizens but they all failed. It is said that different planets have their own significance as per the Hindu religion like the mars signifies the god of war. The person having a good rays from mars is said to get a good post in the military force. In the same way Saturn is considered to be the god of justice as per the Hindu religion. This people will win the court and cases.
       Hence in this way we are the one creator of our own fortune so we should try hard to get to our destination.

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The science behind permanent tattoos

Our skin consists of three layers. This are epidermis, dermis and subcutaneous layers. The epidermis is the first layer which is exposure to the environment. Just behind the epidermis there is the dermis layers and just below that the subcutaneous layers that possess the connective tissue as well as the nerve fibres. Most of the people now are adopting or having tattoos as a part of a trending fashion or culture. Probably no doubt there are many tattoos designer who are involved in putting tattoos so in this today's topic we are going to discuss about the science behind getting tattoos.
              The epidermis being a outer layer which is easily be removed after every certain time. The tattoo is not applied in this area but just under it to the dermis the tattoos are applied so it is painful and cause the swelling of that part. The ink is not injected to that part but instead the by the capillary action the ink is absorbed by the layer automatically. The layer is then look to be inked properly but also due to the continuous breaking of the ink pigment and the over exposure to the sun cause the UV rays to break over hence after some months the tattoo looks so fade and pale. Primarily the different colors can be applied for the tattoos. Among them black is the common which can easily be removed by the laser tattoo removal technique. Besides black there are blue, green and other different mixtures of the colors. This colors are difficult to remove but by the special laser technique provide a strong heat and pressure to that part of the skin for the breakage of the ink pigments so it would be easy for the white body corpuscle to feed them. This type of the tattoos take some time to remove away from the body. In the same time the scientists have discovered that some of the ink used for tattooing may cause cancer due to the ink chemicals. We should not be worry because most of the ink used in the shops are branded inks which do not cause the cancer. It may be allergic for some one due to its skin infection.
        We should be careful while tattooing about its ink chemicals. However it is one of the trending fashion so there is no harm.

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What are deep web and dark web

Nowadays internet has been proved to be a inseparable part of our life. From morning to evening we are connected with it. It is one of the world or a whole planet actually. We can read any news from all over the globe. We can learn a new discoveries that are being taking place. We cannot imagine how being is this web but in spite of our thinking it is not a large web than other web. Yes some of we may not have heard of other webs besides our surface web i.e dark web and dark web.
   It has been said that our normal web that we access through Google, Firefox or any other normal browser is just only 4% of the entire web. There is another world of web which is very vast. It is not run by the normal browsers it is run by a browser named as tor.go by the help of this browser we can access to the web but you should not go to this web because they are illegal. In the deep web all kinds of the information are available i.e government confidential letter and other privacy letters are all stored in the deep web. All things are illegal there so we should avoid there to go. All our privacy goes to the admin of this web so we may face problems in the near future and also there is not a good things as all the information's are hacked so it is dangerous too. While in the other hand dark web is more dangerous than the deep web. It is also considered as a small part of the deep web. In the dark web all the illegal activities or crime that we can imagine farther are done here. The IP address of the user is not shown here so this is the reason that the people are taking the benefits by selling drugs, weapons, or order a sniper to murdered a person. This type of all the activities are done here also the creepy or tortured videos and pictures are found on the red zone of this web. This are emphasising the crime while on the other hand the people who are under the dictatorship rule are fully assured as the IP address of the PC is hidden and not any kinds of in formations are transferred or recorded.
      Today most of the crime departments and other powerful countries are trying their all to banned this web but they are such a large that a big amount of money and human resources are required for them to stop. Till they are growing but this type of the web is illegal and should not go there as they may cause us harm.

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Science behind polarized sunglass

Before entering direct to the topic. We should first of all should know about polarization. Polarization is the phenomenon in which the vibration of light takes place in one particular direction. We all know that light is both particles and waves. It shows both the nature. When in the waves in the transverse wave the up and down or horizontal vibration takes place. Whereas particles are also sometime called as the packets of photons. This photons vibrate when reflecting from a surface. Just like when a different holes are made in the balls and then pass the light then in that situation the light is spread from all that balls hole. In the same way the light coming from the sun spread in all direction and this direction is known as ether. From this medium the source of light is vibrating in all direction and this is called unpolarized light but when a light reflected to a certain surface like water, snow, roads they appear to be more shining and becomes bright because now the light vibration is all on a particular direction. It is not spreading as previous. This is called as the polarized light. The objects are difficult to see and observe.
        To prevent from such level of brightness and to avoid polarization of light directly on our eyes the polarized sunglasses are made. It was back in the year 1934 when Edwin land first invented a polaroid sunglass. This lenses are made by a billions of crystal crystallization of herpathite onto a smooth stretchy polymer. He used the concept of bringing all those polymer onto a bar window on a smaller level of molecule. When the polarized light strike onto this bar they are blocked by the bar. It is also not so darker as compared to non polaroid sunglasses as well as it provides the original color of visuality when seeing around. It is very useful for working in a very bright area and for having fun on holidays on a sea beach, adventure on high mountains or fishing.
       So this are the workings and the science behind how the polarized glass actually functions.

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