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Curiosity Tea

481. How does the blood type work?

The test to determine your blood group is called ABO typing. Your blood sample is mixed with antibodies against type A and B blood. Then, the sample is checked to see whether or not the blood cells stick together. If blood cells stick together, it means the blood reacted with one of the antibodies.

Blood typing procedure:

•Mix! First mix the patient's blood with three different reagents including either of the three different antibodies, A, B or Rh antibodies!

•Look for agglutination!

•Then you take a look at what has happened.

•Figure out the ABO blood group!

•Figure out the Rh blood group!

•Figure out the blood type!
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482. What is Pacemaker ?

A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses electrical pulses to prompt the heart to beat at a normal rate.Pacemakers are used to treat arrhythmias (ah-RITH-me-ahs). Arrhythmias are problems with the rate or rhythm of the heartbeat.
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483. Define the following terms; 1. Isohyets 2. Isobars 3. Isothems 4. Isohels 5.Weathering 6.Deposition 7.Mudflow?

1. Isohyets a line on a map or chart connecting areas of equal rainfall.
2. An imaginary line or a line on a map or chart connecting or marking places of equal barometric pressure .
3.Isotherm (contour line) – a type of contour line that connects points of equal temperature at a given date or time on a geographic map 
4. It is a line of equal or constant solar radiation . 
5. The breaking down of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. 
6. (Aerosol Physics), a process where aerosol particles set down onto surfaces, (physics), the process of gas transformation into solid,(chemistry), molecules settling out of a solution.
7. The most rapid (up to 80 km/h, or 50 mph) and fluid type of downhill mass wasting. It is a rapid movement of a large mass of mud formed from loose soil and water.
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484. What is Mid Night sun or Polar Night ?

http://telegra.ph/What-is-Mid-Night-Sun-or-Polar-Nights-08-05
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484. What is Mid Night sun or Polar Night ?

http://telegra.ph/What-is-Mid-Night-Sun-or-Polar-Nights-08-05
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485. How many planets do not have natural satellites ?

Two planets, Venus and Mercury, are the only planets in the solar system that do not have any natural satellites or moons. Mercury, Venus, Mars and Earth are inner planets. The outer planets are Jupiter, Uranus, Saturn and Neptune.
Earth has one large natural satellite, known as the Moon; and Mars has two tiny natural satellites, Phobos and Deimos.
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486. Why is yawning infectious?

Yawning is a result of increased levels of carbon dioxide in the lungs – often occurring as a result of a lower breathing rate when the body relaxes.
If a group are all relaxing together, it is probable they’ll all reach the same elevated level of CO2 at approximately the same time.
Hence they may feel the need to yawn at the same time.
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487. How do meteorologists forecast the weather ?

Weather forecasting is a prediction of what the weather will be like in an hour, tomorrow, or next week. Weather forecasting involves a combination of computer models, observations, and a knowledge of trends and patterns. By using these methods, reasonable accurate forecasts can be made up to seven days in advance.
Weather forecasts are made by collecting as much data as possible about the current state of the atmosphere (particularly the temperature, humidity and wind) and using understanding of atmospheric processes (through meteorology) to determine how the atmosphere evolves in the future.
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488. Which Animal that never drinks water in its entire life ?

The tiny kangaroo rat found in the south western deserts of the united states does not drink water in its entire life. Kangaroo rats are an important part of desert life. They are often eaten by other animal for the water in their bodies. The rats can run very fast, covering 6 meters in one second, Because of their long powerful legs and the strong tail which resemble those of the kangaroo they are called the kangaroo rats. They grow to about 38 cm long, including a tail of 20cm.
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489. What are different layers of Sun ?

http://telegra.ph/What-are-different-Layers-of-08-05
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490. What is Vitamin D, how do we get from sun ?

Vitamin D is not one chemical but many. The natural type is produced in the skin from a universally present form of cholesterol, 7-dehydrocholesterol. Sunlight is the key: Its ultraviolet B (UVB) energy converts the precursor to vitamin D3.
We need vitamin D to help the body absorb calcium and phosphate from our diet. These minerals are important for healthy bones, teeth and muscles.
A lack of vitamin D – known as vitamin D deficiency – can cause bones to become soft and weak, which can lead to bone deformities. In children, for example, a lack of vitamin D can lead to rickets. In adults, it can lead to osteomalacia, which causes bone pain and tenderness.
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491. How Does the Air Pressure of a Soccer Ball Affect the Distance it Goes When Kicked ?

http://telegra.ph/How-Does-the-Air-Pressure-of-a-Soccer-Ball-Affect-the-Distance-it-Goes-When-Kicked-08-09
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492. Why are the Pamirs called the Roof of the World ?

It is called the roof of the world because they are at high altitude. The Pamir Mountains are a mountain range in Central Asia formed by the junction of the Himalayas with Tian Shan, Karakoram, Kunlun, and Hindu Kush ranges.
Pamirs Mountainous region in central Asia, lying mostly in Tajikistan and partly in Pakistan, Afghanistan, and China. The region forms a geological structural knot from which the Tian Shan, Karakoram, Kunlun, and Hindu Kush mountain ranges radiate.
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493. Who is bugs bunny?

Bugs Bunny is an animated cartoon character; created in 1940 by Leon Schlesinger Productions (later Warner Bros. Cartoons) and voiced originally by Mel Blanc. Bugs is best known for his starring roles in the Looney Tunes and Merrie Melodies series of animated short films, produced by Warner Bros. during the golden age of American animation. His popularity during this era led to his becoming an American cultural icon, as well as the official mascot of Warner Bros. Entertainment.
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494. What is floodplain?

A floodplain or flood plain is an area of land adjacent to a stream or river that stretches from the banks of its channel to the base of the enclosing valley walls and experiences flooding during periods of high discharge. The soils usually consist of levees, silts, and sands deposited during floods. Levees are the heaviest materials (usually pebble-size) and they fall in first; silts and sands are finer materials.
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495. What is the Congenital Adrenal Hyperplasia (CAH)?

(1). CAH is an inherited disorder that affects the adrenal glands where the glands cannot produce cortisol and aldosterone, and instead produce an unwanted excess amount of androgens.

(2). A child with CAH lacks enzymes the adrenal glands use to produce hormones that help regulate metabolism, the immune system, blood pressure, and other essential functions.

(3). Parents with children suffering from it often have great difficulty in the upbringing of the child, including treatment, getting school admission and other support issues.
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496. How sea turtles travel in open sea?

The Earth's magnetic field provides a pervasive source of directional information used by phylogenetically diverse marine animals. For these animals, the Earth's field also serves as a source of positional information. For young loggerhead turtles, regional magnetic fields function as navigational markers and elicit changes in swimming direction at crucial geographic boundaries. Older turtles, apparently acquire a “magnetic map” that enables them to use magnetic topography to determine their position relative to specific goals.
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497. What happens when thunder hits a house ?

Power Surges: When lightning strikes a house, the electricity often surges through a home's wiring or plumbing system, searching for the quickest possible route to the ground. The most common place for a fire to ignite is in the attic, when a lighting bolt comes through the roof or top of the house.
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498. Why does your hair stand on end when you get cold?

Tiny muscles connected to each hair follicle contract, causing the skin to bulge and our hairs to stand on end. Back when we were covered in more hair this allowed us to trap as much air as possible which worked as an insulator to battle the cold.
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499. What is Full Form of OCB ?

Rolling paper is also used for rolling cigarettes i.e to roll tobacco in the papers.
Outontrip has tied up with the largest rolling paper company in the world- HBI Europe. They hold the brands like RAW, Wiz Khalifa, Juicy Jays- Flavored papers, Elements etc. Full form of OCB is Odet-Cascadec-Ballore.
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500. What causes a soccer ball to take a curved path when kicked ?

The spin on a soccer ball is determined by how it is kicked. By giving the ball a
spin a soccer player can cause its path through the air to curve or bend. The curving is caused by a force, called the Magnus effect, caused by the air moving over the spinning ball.
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501. What are different layers of atmosphere ?

http://telegra.ph/What-are-different-layers-of-atmosphere-08-05
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502. How do Metro cards and Tokens work ?

Metro Cards and Token works on NFC technology. Machines on all the metrostations are NFC reader and writer machines. They write station code in the card when you enter a station and when you exit they calculate distance based on the station code entered in the card. The info is stored in thecard/token itself.
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503. Why the seats and curtains in theaters are red in color ?

There is scientific reason behind it. Red is the first colour that is lost to our sight in low-light conditions, which thus makes the surroundings seem black and unobtrusive when watching a movie or performance.
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504. Who was algebra named after ?

The word algebra comes from the Arabic language (الجبر al-jabr "restoration") from the title of the book Ilm al-jabr wa'l-muḳābala by al-Khwarizmi. The word entered the English language during Late Middle English from either Spanish, Italian, or Medieval Latin.
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505. What is the history of KFC restaurant ?

KFC, until 1991 known as Kentucky Fried Chicken, is an American fast food restaurant chain that specializes in fried chicken. KFC was founded by Colonel Harland Sanders, an entrepreneur who began selling fried chicken from his roadside restaurant in Corbin, Kentucky during the Great Depression.
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506. What does the torch of statue of liberty represent?

The torch is a symbol of enlightenment. The Statue of Liberty's torch lights the way to freedom showing us the path to Liberty. Even the Statue's official name represents her most important symbol "Liberty Enlightening the World". The Statue's current replacement torch, added in 1986, is a copper flame covered in 24K gold. It is reflective of the sun's rays in daytime and lighted by 16 floodlights at night. The original torch was removed in 1984 and is currently inside the lobby of the monument.
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507. What is function of Spoiler in Cars ?

http://telegra.ph/What-is-the-function-of-spoiler-in-Car-08-09
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508. Which national anthem don't have official lyrics ?

The Marcha Real (Spanish pronunciation: [ˈmartʃa reˈal], "Royal March") is the national anthem of Spain. It is one of only four national anthems (along with those of Bosnia and Herzegovina, Kosovo, and San Marino) in the world to have no official lyrics.
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509. What is the "Tunguska Event" ?

One of the biggest explosions in history, the Tunguska Event occurred on June 30, 1908 in Siberia. The blast leveled approximately 770 square miles of forest, and supposedly left a glow in the night skies for the next three days, according to an issue of Nature from that time. The cause of the explosion, however, has yet to be fully explained. However, of the possible causes, the leading answer is an asteroid burst, similar to the Chelyabinsk meteor in 2013.
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510. What is the difference between ‘cemetery’ and ‘graveyard’?

From about the 7th century C.E., the process of burial was firmly in the hands of the Church (the Christian organization), and burying the dead was only allowed on the lands near a church (now referring to the building), the so-called churchyard. The part of the churchyard used for burial was called graveyard.

As the population of Europe started to grow, the capacity of graveyards was no longer sufficient (the population of modern Europe is almost 40 times higher than it was in the 7th century). By the end of the 18th century, the unsustainability of church burials became apparent, and completely new places for burying people, independent of graveyards, appeared—and these were called cemeteries.
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511. What are "dirty thunderstorms"?

Dirty thunderstorms are the ultimate explosive combination. These crackling ash clouds are essentially lightning created by volcanic eruptions. This dynamic display results from the same thing that causes regular lightning: ice particles colliding to produce a static charge, only with rock and ash thrown into the mix. According to the BBC, these voltaic visuals are actually pretty rare, except for at Mount Sakurajima in Japan, where it happens on an almost daily basis. Poor Japan.
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512. What is "the door to hell" and how did it come about ?

Science can easily explain the 70-meter-wide Door to Hell in Turkmenistan, because science caused it. According to the Daily Mail, back in 1971, Soviet geologists were drilling what they thought was an oil field. But instead, they wound up opening a natural gas-filled cavern. Fearing a poisonous-gas leak, they lit a match, hoping to burn off the toxic vapor. The gas supply they thought would burn off in a few days continues to burn as of this writing. In 2010, Turkmenistan's president Gurbanbuly Berdimuhamedow wanted the hole closed, but that hasn't happened. And in case you're wondering, people can visit the infernal locale. Just don't forget the marshmallows.
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513. Phosphorescent (glowing) water?

In some parts of the world, the beaches are so beautiful that the waves shine at night. It's true! These glowing waves, which can be found in the Everglades, the Maldives, and numerous other places around the world, are actually created by microorganisms, according to National Geographic. These particular microorganisms, phytoplankton, give off light when they're agitated, like when they're struck by waves. The result is an alluring glow, which can be seen in various locations in the world's oceans. It also makes for great, natural mood lighting.
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514. What is Flammable Bubbles?

The bubbles found in Lake Abraham in Canada may look like a giant lava lamp, but they're nowhere near as groovy. These brisk globules actually contain methane released by bacteria, after consuming dead organic matter, which is then trapped in the ice, according to The Guardian. For the most part, the bubbles are harmless. That is unless they're lit. In that case, they turn to bitter bombs. That's right: Lake Abraham, the only lake that needs a no-smoking sign.
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515. What is soil free farming ?

Hydroponics is a subset of hydroculture, the method of growing plants without soil, using mineral nutrient solutions in a water solvent. Terrestrial plants may be grown with only their roots exposed to the mineral solution, or the roots may be supported by an inert medium, such as perlite or gravel.
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516. Why does a camel have a hump?

Camels do not store water in their humps, as it is commonly believed. The humps are actually reservoirs of fatty tissue. Concentrating body fat in their humps minimizes heat-trapping insulation throughout the rest of their body, which may be an adaptation to living in hot climates. When this tissue is metabolized, it acts as a source of energy and yields more than 1g of water for each 1g of fat converted through reaction with oxygen from air.
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517. Why Does alcohol make you pee ?

Alcohol is a diuretic. What this means is, when you drink alcohol, you produce more urine. This happens because alcohol suppresses release of arginine vasopressin or anti-diuretic hormone (ADH),  the hormone that allows your
kidneys to return water to your bloodstream. The effect is additive, so drinking more alcohol increases the level of dehydration . Another part of the reason you visit the bathroom more often is because alcohol also stimulates the bladder, so you'll feel the urge to pee sooner than you would ordinarily.
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518. What is an illusion ?

An illusion is a distortion of the senses, revealing how the brain normally organizes and interprets sensory stimulation. Though illusions distort reality, they are generally shared by most people. Illusions may occur with any of the human senses, but visual illusions (optical illusions) are the best-known and understood. The emphasis on visual illusions occurs because vision often dominates the other senses. 
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518. What is an illusion ?

An illusion is a distortion of the senses, revealing how the brain normally organizes and interprets sensory stimulation. Though illusions distort reality, they are generally shared by most people. Illusions may occur with any of the human senses, but visual illusions (optical illusions) are the best-known and understood. The emphasis on visual illusions occurs because vision often dominates the other senses. 
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519. Why does salt melt ice ?

Salt melts ice essentially because adding salt lowers the freezing point of the water. How does this melt ice? Well, it doesn't, unless there is a little water available with the ice.
The good news is you don't need a pool of water to achieve the effect. Ice typically is coated with a thin film of liquid water, which is all it takes for the salt to work.
Pure water freezes at 32 F (0 C). Water with salt (or any other substance in it) will freeze at some lower temperature. Just how low this temperature will be depends on the de-icing agent. If you put salt on ice in a situation where the temperature will never get up to the new freezing point of the salt-water solution, you won't see any benefit. For example, tossing table salt (sodium chloride) onto ice when it's 0 F won't do anything more than coat the ice with a layer of salt. On the other hand, if you put the same salt on ice at 15 F, the salt will be able to prevent melting ice from re-freezing. Magnesium chloride works down to 5 F while calcium chloride works down to -20 F.
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520. What's the fastest shark in the sea ?

The shortfin mako shark has been clocked at a sustained speed of 20 mph, but it can double or triple that speed for short periods of time.
Shortfin makos can reliably accelerate to 46 mph, and some individuals may even reach 60 mph. Their torpedo-shaped bodies enable them to surge through the water at such a rapid speed. Mako sharks also have tiny, flexibile scales covering their body, allowing them to control the flow of water over their skin and minimize drag. And shortfin makos aren't just fast; they can also change direction in a split second. Their remarkable speed and maneuverability make them lethal predators.
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521. Why does Japan get so many earthquakes ?

Japan is located along the Pacific “ring of fire”, on the edges of several continental and oceanic tectonic plates. This is an area of high seismic and volcanic activity from New Zealand, up through Japan, across to Alaska, and down the west coasts of North and South America.
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522. What is RNA?

Ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins, although in some viruses RNA rather than DNA carries the genetic information.
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523. How does a Vacuum cleaner work?

http://telegra.ph/How-does-a-Vacuum-cleaner-works-08-13
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524. How do solar panels generate electricity from sun light ?

http://telegra.ph/How-do-solar-panels-generate-electricity-from-sunlight-08-08
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525. Usain Bolt and Jamaica stripped of 2008 Olympic 4x100m gold medal, Why ?

The IOC have disqualified Jamaica's Nesta Carter from 2008 Olympic Games.
Sprinter Carter won gold in the 4x100m relay in Beijing alongside Usain Bolt.
Re-analysis gave a positive test for prohibited substance methylhexaneamine.
Jamaica have now been stripped of their medals - with Bolt and Co disqualified.
The decision means Bolt's triple-triple of Olympic gold medals is no more.
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526. What is the real name of a hashtag ?

Its myriad names and its appearance are intertwined. The # symbol is commonly called the pound sign, number sign and more recently the hashtag. It is called the pound sign because the symbol comes from the abbreviation for weight, lb, or “libra pondo” literally “pound by weight” in Latin.
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527. How does the biosensor work?

The term “biosensor” is short for “biological sensor.” The device is made up of a transducer and a biological element that may be an enzyme, an antibody or a nucleic acid. The bioelement interacts with the analyte being tested and the biological response is converted into an electrical signal by the transducer.
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528. What is Litmus Paper, how does it work ?

Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple. Litmus can also be prepared as an aqueous solution that functions similarly.
The primary raw materials used for making litmus paper are wood cellulose, lichens, and adjunct compounds. Litmus paper, as its name implies, is primarily composed of paper. The paper used to make litmus paper must be free of contaminants that could change the pH of the system it is measuring.
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529. Why The Time is Always Set To 9:41 In Apple Ads?

That time used to be 9:42 . You could see it across various commercials, print ads, and even on Apple's site itself. The explanation was simple: That's the time in the morning that Steve Jobs announced the very first iPhone in 2007. Around 42 minutes into his keynote address, he said, "Today Apple is going to reinvent the phone."
And a picture of the iPhone, displaying the time 9:42, popped up on the screen behind him.
But that all changed in 2010, when the very first iPad was released. When that was revealed, it displayed a different time: 9:41. The time was changed for no reason at all.
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530. How does an optical fiber work?

Imagine what they'd make of modern fiber-optic cables "pipes" that can carry telephone calls and emails right around the world in a seventh of a second! Photo: Light pipe: fiber optics means sending light beams down thin strands of plastic or glass by making them bounce repeatedly off the walls.
Fiber optics is faster than most other transmission mediums. The signal has a constrained loss rate, which means that very little of a signal is lost over rather long distances.
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531. What is URL ?

A URL (Uniform Resource Locator) is a form of URI and is a standardized naming convention for addressing documents accessible over the internet and Intranet. An example of a URL is http://web.telegram.org, which is the URL for the Web Telegram.
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532. How do capacitive touch works?

They work with anything that holds an electrical charge – including human skin. (Yes, we are comprised of atoms with positive and negative charges!) Capacitive touch screens are constructed from materials like copper or indium tin oxide that store electrical charges in an electrostatic grid of tiny wires, each smaller than a human hair.
There are two main types of capacitive touch screens – surface and projective. Surface capacitive uses sensors at the corners and a thin evenly distributed film across the surface (as pictured above) whereas projective capacitive uses a grid of rows and columns with a separate chip for sensing, explained . In both instances, when a finger hits the screen a tiny electrical charge is transferred to the finger to complete the circuit, creating a voltage drop on that point of the screen. (This is why capacitive screens don’t work when you wear gloves; cloth does not  conduct electricity, unless it is fittedwith conductive thread.) The software processes the location of  this voltage drop and orders the ensuing action. 
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533. What are the lines on rear glass of the Car?

http://telegra.ph/Why-are-there-lines-on-the-rear-glass-of-cars-07-11
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534. Which city is known as Eternal city ?

Rome was first called The Eternal City (Latin: Urbs Aeterna; Italian: La Città Eterna) by the Roman poet Tibullus in the 1st century BC, and the expression was also taken up by Ovid, Virgil, and Livy. Rome is also called the "Caput Mundi" (Capital of the World). Romehas the status of a global city.
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535. How sheep can recognize each other through picture?

The human brain has evolved specialized neural mechanisms for visual recognition of faces, which afford us a remarkable ability to discriminate between, remember and think about many hundreds of different individuals. Sheep also recognize and are attracted to individual sheep and humans by their faces, as they possess similar specialized neural systems in temporal and frontal lobes for assisting in this important social task.
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536. What is the most gold medals won by a country in a single Olympics?

The USA won a record 239 medals at the third Olympic Games, held in St Louis, Missouri, USA, in 1904. The record haul consisted of 78 gold, 82 silver and 79 bronze medals. USSR lies in second place with a total of 195 medals (80 gold, 69 silver, 46 bronze) won at the 1980 Games held in Moscow, USSR.
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537. How do self driving cars work?

Various self-driving technologies have been developed by Google, Uber, Tesla, Nissan, and other major automakers, researchers, and technology companies.
While design details vary, most self-driving systems create and maintain an internal map of their surroundings, based on a wide array of sensors, like radar. Uber's self-driving prototypes use sixty-four laser beams, along with other sensors, to construct their internal map; Google's prototypes have, at various stages, used lasers, radar, high-powered cameras, and sonar.
Software then processes those inputs, plots a path, and sends instructions to the vehicle’s “actuators,” which control acceleration, braking, and steering. Hard-coded rules, obstacle avoidance algorithms, predictive modeling, and “smart” object discrimination (ie, knowing the difference between a bicycle and a motorcycle) help the software follow traffic rules and navigate obstacles.
Sensors generate a 3-dimensional map to aid navigation.
Partially-autonomous vehicles may require a human driver to intervene if the system encounters uncertainty; fully-autonomous vehicles may not even offer a steering wheel.
Self-driving cars can be further distinguished as being “connected” or not, indicating whether they can communicate with other vehicles and/or infrastructure, such as next generation traffic lights. Most prototypes do not currently have this capability.
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538. What does gyroscope sensor do?

Gyroscope is a sensor that can provide orientation information as well, but with greater precision. Thanks to this particular sensor, Android's Photo Sphere camera feature can tell how much a phone has been rotated and in which direction. It is also used by Google's Sky Map for telling what constellation you're pointing a phone at.
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539. What is glass snake ?

The glass lizards or glass snakes are a genus, Ophisaurus, of reptiles that resemble snakes, but are actually lizards. Although most species have no legs, their head shapes, movable eyelids, and external ear openings identify them as lizards.
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540. Which country in the world has a different calendar?

It is quite an unknown that the whole world, except Ethiopia, has adopted Gregorian calendar. On the other hand, Ethiopia has accepted the Coptic calendar, which is quite different from the Gregorian calendar. The Coptic calendar has 13 months of which 12 months comprise of 30 days each, and a 13th month at the end of the year called the intercalary month usually has 5 days and 6 days in a leap year. The country of Ethiopia celebrates New Year on September 11th.

The relationship between Ethiopian and Gregorian calendars varies whenever the Gregorian calendar misses a leap year. The difference in year numbering is because the Ethiopian Orthodox Church disagrees with the Roman Catholic Church about when Christ was born. The calculation of time is also dissimilar in Ethiopia as hours are counted from down. So the next time, while on September 11th(today) you are engaged in your routine schedule, Ethiopia will be celebrating New Year!

Happy New Year Ethiopia.
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541. What is Narco Test?

A person is able to lie by using his imagination. In the Narco Analysis Test, the subject's imagination is neutralised by making him semi-conscious. In this state, it becomes difficult for him to lie and his answers would be restricted to facts he is already aware of.
Experts inject the subject with Sodium Pentothal or Sodium Amytal. The dose is dependent on the person's sex, age, health and physical condition. A wrong dose can result in a person going into a coma, or even death.
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542. What is operation Red Dawn?

Operation Red Dawn was an American military operation conducted on 13 December 2003 in the town of ad-Dawr, Iraq, near Tikrit, that led to the capture of Iraqi president Saddam Hussein. The operation was named after the 1984 film Red Dawn. 
Date: 13 December 2003
Result: Successful operation; Capture and arrest of former Iraqi president Saddam Hussein.
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543. What is Bluebird crash?

On 4th January 1967, Campbell was killed whilst attempting to set another water speed record in his 'Bluebird K7'. He had already set seven water speed records between 1955 and 1964 with speed increases from 216mph to 276.33mph. The accident happened on Coniston Water, Lancashire, England. The Bluebird surpassed 320mph but as she did so she gradually lifted from the water before somersaulting out of control. Campbell was killed instantly.
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544. Why Does Swiss Cheese Have Holes?

Swiss cheese, properly known as Emmentaler, gets its hole-y appearance and distinctive flavor thanks to the bacteria that turns milk into cheese. All cheeses contain bacteria (they’re responsible for producing lactic acid) which help them develop into a final edible product, yet not all those bacteria are the same.
To make Swiss cheese, the cultures of the bacteria S. thermophilus, Lactobacillus and P. shermani are mixed with cow’s milk. The bacteria helps produce curds, which are pressed and soaked in brine inside of cheese molds. The cheese is then stored at 72 to 80 degrees Fahrenheit and left to ripen. It’s at this point when the bacteria really does its work. While it’s working, it releases lactic acid and one of those bacteria, a gassy one, consumes it.
That bacteria, more specifically P. shermani, releases carbon dioxide when it consumes the lactic acid and forms bubbles. The bubbles don’t just disappear, they form little air pockets, resulting in the holes of the Swiss cheese. The size of the holes can be controlled by cheese makers through the acidity, temperature and maturing time, which is why it’s possible to have a baby Swiss and regular Swiss option.
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545. Why do Giraffe's have purple tongues?

The color of a giraffe's tongue is described as black, blue or purple with a pink base.
A giraffe's tongue hasmelanin (same pigment that turns your skin dark when you get suntanned). Their dark tongues have more melanin, which protects them from getting sunburned.
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546. What are colour codes of USB wires?

http://telegra.ph/What-are-colour-codes-of-USB-wires-09-15
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547. Difference between nationality and citizenship?

https://www.economist.com/blogs/economist-explains/2017/07/economist-explains-4
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548. Why does the olympic flag only contain black, green, Red, Blue and yellow Rings on a field of white?

The Olympic flag's colors are always red, black, blue, green, and yellow rings on a field of white. This is because at least one of those colors appears on the flag of every nation on the planet.
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549. Why NASA crashed the $4 billion Cassini spacecraft into Saturn ?

On Friday, September 15, around 7:55 am EDT, NASA watched its 20-year-old, $4 billion-plus spacecraft to crash into Saturn.
The space agency really has no other choice. Cassini is nearly out of fuel, and has already been stretched years beyond its intended mission duration. What’s more, keeping it going risks potentially contaminating one of Saturn’s moons — like Enceladus, an ice world that has some ingredients for life, or Titan, a dynamic moon where it rains methane — with microbes from Earth.
And so the spacecraft will end its existence by literally going where no human-made object has gone before: into Saturn’s atmosphere.

http://ift.tt/2wr2eN0
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549. Why NASA crashed the $4 billion Cassini spacecraft into Saturn ?

On Friday, September 15, around 7:55 am EDT, NASA watched its 20-year-old, $4 billion-plus spacecraft to crash into Saturn.
The space agency really has no other choice. Cassini is nearly out of fuel, and has already been stretched years beyond its intended mission duration. What’s more, keeping it going risks potentially contaminating one of Saturn’s moons — like Enceladus, an ice world that has some ingredients for life, or Titan, a dynamic moon where it rains methane — with microbes from Earth.
And so the spacecraft will end its existence by literally going where no human-made object has gone before: into Saturn’s atmosphere.

http://ift.tt/2wr2eN0
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550. What is BioPhoton therapy?

BioPhoton Therapy is a new technique which is effective in the treatment of soft tissue injuries, reduction of pain, promotion of wound healing, and provides therapy for arthritic conditions.
Benefits of Biophoton Therapy. A new protocol that combines ozone therapy and light therapy is now available to people who seek relief from lingering viruses, painful infections and autoimmune disease. This new service is called Biophoton therapy, and is also often referred to as UVBI Therapy or UVB Light Therapy.
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551. What is the difference between brown and white sugar?

The main difference between raw (brown) sugar and white sugar is thatbrown hasn't completely been refined. Raw sugar is 96% pure, the rest is molasses (still containing minerals), while white sugar is pure calories (4 calories per gram). The crystals are spun in a centrifuge, which removes molasses.
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552. What is the purpose of floating ribs?

One of the overall functions of the ribs is the protection of internal organs. The floating ribs, located at the bottom of the rib cage in the kidney area, shelters these vital organs. Floating ribs are not as involved in breathing as the other 10 pairs of ribs.
Also known as the vertebral ribs, floating ribs are the two pairs of lowermost ribs, numbered 11 and 12, positioned on each side of the rib cage. They attach to the backbone alone, unlike the other ribs that attach to the backbone and also attach directly or indirectly to the breastbone. This anatomy makes them appear to float, hence the name floating ribs.
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553. What is meant by cloud burst?

A cloud burst is a sudden violent rainstorm falling for a short period of time limited to a small geographical area. The rain is of the shower type with a fall rate equal to or greater than 100 mm per hour. Cloud bursts are usually associated with thunderstorms.
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554. What makes hair Curly?

When a follicle is asymmetrical, the hair that it produces is oval in shape and tends to curl. When it's symmetrical, the strand that emerges grows round and straight. A curly haircan also be described according to its composition and structure.
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555. What is the history of Kings in Playing Cards?

http://telegra.ph/What-is-the-history-of-Kings-in-Playing-cards-08-02
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556. What is Ransomware?

Ransomware is malware that locks your keyboard or computer to prevent you from accessing your data until you pay a ransom, usually demanded in Bitcoin. The digital extortion racket is not new---it’s been around since about 2005, but attackers have greatly improved on the scheme with the development of ransom cryptware, which encrypts your files using a private key that only the attacker possesses, instead of simply locking your keyboard or computer. Most recently, a global cyberattack spread ransomware to countless computers over 150 countries.
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557. Why Giraffe has highest blood pressure?

The giraffe is a big-hearted animal. On the average, the mass of a giraffe's heart is about 40 kg. The giraffe needs a big heart with very thick muscular walls to pump sufficient blood a long distance, up the length of the neck to the brain( more work against the gravity). As a result, the giraffe has the highest blood pressure of any animal.
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558. What is tear Gas?

The most commonly used tear gas contains the chemical agent 2- chloro benzaldene malononitrile (CS). Despite its name, tear gas is not a gas, but an aerosol. CS is solid at room temperature and mixed with liquid orgas dispersal agents when used as a weapon designed to activate pain-sensing nerves.
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559. What is Kepler Space craft?

Kepler is a space observatory launched by NASA to discover Earth-size planets orbiting other stars. Named after astronomer Johannes Kepler, the spacecraft was launched on March 7, 2009, into an Earth-trailing heliocentric orbit. The number of known alien planets has just gone up by more than 60 percent. NASA's Kepler space telescope has discovered 1,284 new exoplanets, including nine rocky worlds that might be capable of supporting life as we know it, astronomers announced on 10 May,2016.
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560. What is "What3Words" or Three word addressing system?

What3Words is a service that divides the globe into something like 3 trillion 3 meter by 3 meter squares, and gives each of those squares a natural-language, three-word moniker, e.g., "apple bicycle road".
Let's say, for example, that you wanted to find the three word address for the crooks who reside at 1600 Pennsylvania Ave., Washington, DC USA.  Here it is: strong.pitch.volunteered .  The three word address is "strong.pitch.volunteered".  If you're from, say, Tokyo, and you're not familiar with American addressing systems, those three words make more sense to you than does "1600 Pennsylvania Ave., Washington, DC USA."  This three word addressing system becomes even more useful if you're trying to identify a precise area of an "unaddressed" area such as in the middle of the Amazon, or Borneo, or interior Antarctica, etc.
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561. What is Golden Blood?

When it comes to blood types, you may know A, AB, B, and O—but those larger groups actually contain millions of different varieties.That's because the surface of ourblood cells are coated with antigens—up to 342 of them. Rh-null blood can be accepted by anyone with a rareblood type in the Rh system, making it "the golden blood," says a doctor. International donations are, however, often hampered by bureaucracy.
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562. What is OTG cable?

http://telegra.ph/What-is-OTG-cable-09-15
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563. What is the definition of the Berlin Wall? Why did the Berlin wall Fall?

Berlin wall , A wall that separated West Berlin, Germany, from East Germany, which surrounded it until 1989. At the end of World War II, the victorious Allies divided Berlin, the German capital, into four sectors. The eastern, or Russian, sector became the capital of communist East Germany.
The Fall of the Wall. On November 9, 1989, as the Cold War began to thaw across Eastern Europe, the spokesman for East Berlin's Communist Party announced a change in his city's relations with the West. Starting at midnight that day, he said, citizens of the GDR were free to cross the country's borders.
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564. Why we hear humming sound when standing below high tension powerline?

Transformers are a different story, but with just high-voltage (generally >350kV) wires the standard explanation is corona discharge.
In the air occasionally some gas molecules will become ionized. This means that the molecule gains or loses and electron. This can happen through chemical reactions, but it's generally more likely that UV light knock an electron off. An electrical field doesn't really affect uncharged molecules, but it does affect ions. The positively charged ions are relatively heavy, so move slowly, but the free electrons are very light so they get pushed away very quickly. These fast moving electrons bump other molecules and can knock more electrons free. In addition to moving ions, this can cause a slight glow (when an electron recombines with a positive ion), and heats the air which causes noise.
A negatively charged wire will attract positively charged ions, are push away the free electrons (or any negative charged ions), while a positively charged wire will do the opposite. In a power line carrying AC current, the charge on the wire alternates between positive and negative (with some time in between where it isn't enough charge to matter). The result is that the air gets briefly heated 120 times per second, which makes a hum.
If the wire is smaller, then the electric field near the wire is stronger, so one of the reasons high voltage wires are as large as they are is to reduce this effect.
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565. Why do we lose our sense of taste when we have a cold?

Our sense of smell is responsible for about 80%of what we taste. The tastebuds present on our tongues are limited to only the basic sensations: sweet, salty, sour and bitter. All other flavors that we experience come from smell. This is why, when our nose is blocked, as by cold, most foods seem bland or tasteless. Our sense of smell can normally detect up to 10,000 smells.
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566. What is deepest point on earth?

The Kola Super deep Borehole Russia ,is the result of a scientific drilling project of the Soviet Union in the Pechengsky District, on the Kola Peninsula. The project attempted to drill as deep as possible into the Earth's crust. Drilling began on 24 May 1970. Boreholes were drilled by branching from a central hole. The deepest, SG-3, reached 12,262 metres (40,230 ft) in 1989 and still is the deepest artificial point on Earth. The borehole is 9 inches (23 cm) in diameter.
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567. What is Pellet Gun?

A pellet is a non-spherical projectile designed to be fired from an air gun. Air gun pellets differ from bullets and shot used in firearms because of the pressures encountered: airguns operate at pressures as low as 50 atmospheres, while firearms operate at thousands of atmospheres.
Wood pellets are the most common type of pellet fuel and are generally made from compacted sawdust and related industrial wastes from the milling of lumber, manufacture of wood products and furniture, and construction.
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568. What is Pixel?

The pixel (a word invented from "picture element") is the basic unit of programmable color on a computer display or in a computer image. Think of it as a logical - rather than a physical - unit. The physical size of a pixel depends on how you've set the resolution for the display screen. If you've set the display to its maximum resolution, the physical size of a pixel will equal the physical size of the dot pitch (let's just call it the dot size) of the display. If, however, you've set the resolution to something less than the maximum resolution, a pixel will be larger than the physical size of the screen's dot (that is, a pixel will use more than one dot).
The specific color that a pixel describes is some blend of three components of the color spectrum - RGB. Up to three bytes of data are allocated for specifying a pixel's color, one byte for each major color component. A true color or 24-bit color system uses all three bytes. However, many color display systems use only one byte (limiting the display to 256 different colors).
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569. What's the difference between hacking and cracking?

The difference is that a hacker is someone that uses their extensive knowledge of computer logic and code for malicious purposes, while a cracker - looks for back doors in programs, and exploits those back doors. Cracking is generally less harmful than hacking. Hackers are usually involved with web related hacking, like MySQL interception, or phishing, other forms of hacking would include things like brute force, or password lifting.
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570. What is Kuipter Belt?

The Kuiper Belt is a collection of bodies outside the orbit of Neptune that, if nothing else had happened, if Neptune hadn’t formed or if things had gone a little bit better, maybe they could have gotten together themselves and formed the next planet out beyond Neptune. But instead, in the history of the solar system, when Neptune formed it led to these objects not being able to get together, so it’s just this belt of material out beyond Neptune.
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571. What is bounced email?

Bounced email is an email that couldn’t be delivered. Specifically, it’s an explanation of delivery failure related to server or spam issues, whether they are permanent or temporary. Typically, it is a metric expressed as a percentage of subscribers who didn’t receive your message. There are two types of bounces: hard and soft.
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572. What is silent spring?

Silent spring was a highly controversial book published by Rachel Carson in 1962. It first addressed the problems caused by DDT or dichlorodiphenyltrichloroethane. It listed out it's environmental impacts which had lead to a major decrease in bird population, due to thinning of egg shells and the after effects. It also told that the insects were becoming resistant to DDT and it would have to be used in high concentrations with time. It created a huge controversy since nearly nobody believed her, but she was posthumously proved by more research. She had died of cancer in 1964, two years after the publication of the book.
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573. What rock floats on water?

Pumice varies in density according to the thickness of the solid material between the bubbles; many samples float in water. After the explosion of Krakatoa, rafts of pumice drifted through the Pacific Ocean for up to 20 years, with tree trunks floating among them.
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574. What is a Mirage?

A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects or the sky. The word comes to English via the French Mirage, from the Latin mirari, meaning "to look at, to wonder at". This is the same root as for "mirror" and "to admire".
You might think you are hallucinating when traveling on a hot afternoon, but mirages are a naturally-occurring optical illusion in contrast to visual hallucination. It can equally be captured on a camera.
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575. How does a thermometer works?

A thermometer has a glass tube sealed at both ends and is partly filled with a liquid like mercury or alcohol. As the temperature around the thermometer's bulb heats up, the liquid rises in the glass tube. The glass tube is mounted on a backboard that is marked in units called degrees. When it is hot, the liquid inside the thermometer will expand and rise in the tube. The opposite happens when it is cold. The temperature on a thermometer is read by finding the level of the liquid in the tube and the number on the temperature scale across from it. The temperature is written in numbers with the (degree) sign. For example, 70°F is read: 70 degrees Fahrenheit.
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576. Why do batteries bulge?

Bulging batteries mean only one thing- buildup of gas inside. The gases are produced due to electrochemical oxidation of the electrolyte. Such oxidation occurs usually due to overcharging of the battery due to a faulty battery, or faulty charging electronics in the phone or battery charger.