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What is Vapour Lock in Engines?

Vapour Lock generally occurs when the fuel inside the fuel delivery system overheats and vaporizes rapidly, the resulting excess gas bubbles accumulate to a level that blocks normal fuel delivery. Vapour lock is caused in warmer temperatures as the fuel can vaporize in lines when it receives heat from the engine, exhaust and/or outside temperature. High altitude and other factors can lower the fuels boiling point, leading to vapour lock.  Vapour Lock is a modern problem, since fuel was designed for modern fuel injection systems, Fuel-injected engines use a more volatile fuel that is easier to vaporize and mix with air for a much better combustion. So this new fuel has a lower boiling point, this vaporized fuel can cause back pressure in the fuel system to prevent fuel from reaching your engine, this happens when the motorvehicle is idling or when it has been turned off and back on.  Vapour locks are prevented in modern engines because of the use of an in-tank, electric fuel pump. This

What is Digital Rights Management (DRM)?

Digital Rights Management (DRM) is a way to protect copyrights for digital media. This approach includes the use of technologies that limit the copying and use of copyrighted works and proprietary software. In a way, digital rights management allows publishers or authors to control what paying users can do with their works. For companies, implementing digital rights management systems or processes can help to prevent users from accessing or using certain assets, allowing the organization to avoid legal issues that arise from unauthorized use. Today, DRM is playing a growing role in data security. With the rise of peer-to-peer file exchange services such as torrent sites, online piracy has been the bane of copyrighted material. DRM technologies do not catch those who engage in piracy. Instead, they make it impossible to steal or share the content in the first place. Most of the time, digital rights management includes codes that prohibit copying, or codes that limit the time or number o

What is CCS Technology (Carbon Dioxide Capture and Sequestration)?

Carbon Sequesteration is the process of capturing, securing and storing carbon dioxide from the atmosphere. This set of technologies can greatly reduce carbon dioxide emissions from new and existing coal and gas-fired power plants and large industrial sources.  There are two main types of CCS technologies - Biological and Geological.  Biological carbon sequestration is the storage of carbon dioxide in vegetation such as grasslands or forests, as well as in soils and oceans. Geological carbon sequestration is the process of storing carbon dioxide in underground geologic formations, or rocks.  Scientists are exploring a third alternative of technological sequestration, some of the methods employed are Graphene Production (uses carbon as a raw material ), Direct Air Capture and Engineered molecules, capable of capturing carbon dioxide from air! There is international agreement that CCS is a safe and successful strategy to manage large volumes of CO2 over the long term. In 2005, the Interg

Why do Mosquitoes bite some people and not others?

It has taken decades of research, but scientists are close to working out why mosquitoes bite some people, and not others.  It comes down to a complex trifecta of carbon dioxide, body temperature and body odour that makes some people more inviting to mozzies than others. Mosquitoes first use carbon dioxide (CO2) to track their quarry, much like I use my well-honed sense of smell to track down a freshly baked apple pie. CO2 is emitted by its mammalian blood donor, which mosquitoes can detect from up to 50 metres away. They fly upstream using the shift in concentration of CO2 along this stream to orient themselves. Subsequently people that emit higher levels of CO2 are more attractive from a distance such as those that are exercising or others that have a higher resting metabolism, such as larger individuals.  In general, this means men are more likely to attract mosquitoes than women, children are less susceptible than adults, and full-figured individuals including pregnant women are mo

How Do Coral Reefs Form?

Before learning how reefs form, it's helpful to define a reef. Acoral reef is made up of animals called stony corals. The stony corals are made up of tiny, soft colonial organisms called polyps. Polyps look a lot like a sea anemone, as they are related to these animals. They are invertebrates in the Cnidaria phylum. As the polyps live, reproduce, and die, they leave their skeletons behind. A coral reef is built up by layers of these skeletons covered by living polyps. The polyps reproduce either through fragmentation (when a piece breaks off and new polyps form) or sexual reproduction through spawning. A reef ecosystems may be made up of many species of corals. Healthy reefs are typically colorful, highly biodiverse areas made up of a mishmash of corals and the species that inhabit them, such as fish, sea turtles, and invertebrates such as sponges, shrimp, lobsters, crabs, and seahorses. Soft corals, like sea fans, may be found within a coral reef ecosystem, but do not build reefs

What is the difference in a jet airplane engine and a rocket?

One difference between rockets and jets is found in the type of fuel they burn. Jet engines are air breathers. They take in air (which contains oxygen needed for combustion), mix it with fuel, burn it to increase the pressure, and exhaust the spent gases out the back at a high rate of speed. This high-speed ejection of mass propels the plane forward. Rockets do almost the same thing with two exceptions. Unlike jets, they carry their own oxygen along with them and a rocket does not have wings that add lift. Rocket fuel can burn without external oxygen being present. As a side note, once a solid fuel rocket is ignited, it cannot be turned off. Jet engines must have outside oxygen from the air. Another difference is that jet planes have wings for lift and rockets do not. The density of air and the speed of the plane affect the lift on the wings. For rockets the lift (thrust) is provided solely by the expelled gases. Therefore, a rocket can travel in the vacuum of space void of air, but a

🎁 September • 2021 • movies and webs LIST 🎁

  🎬 F is for Film, S is For Web Series, D is For Documentary, L is For Language L | English :-  ✴️ Turning Point 9/11 And The War On The Terror (D) #Eng - #Netflix SEP 1 ✴️ Dug Days (S) #Eng - #DisneyPlusHS SEP 1 ✴️ Q-Force (S) #Eng, #Hin - #Netflix SEP 2 ✴️ Afterlife Of The Party (F) #Eng - #Netflix SEP 2 ✴️ Trolls: Trollspila S04 (S) #Eng - #Hulu & #PeacockTV SEP 2 ✴️ Worth (F) #Eng - #Netflix SEP 3 ✴️ Money Heist S05 Vol.1 (S) #Eng, #Hin, #Tam, #Tel - #Netflix SEP 3 ✴️ Dive Club (S) #Eng, #Hin - #Netflix SEP 3 ✴️ Sharkdog (S) #Eng, #Hin - #Netflix SEP 3 ✴️ Cinderella (F) #Eng - #AmazonPrimeVideo SEP 3 ✴️ Black Widow (F) #Eng, #Hin, #Tam, #Tel, #Mal, #Kan - #DisneyPlusHS SEP 3 ✴️ Happier Than Ever: A Love Letter To Los Angeles (F) #Eng - #DisneyPlusHS SEP 3 ✴️ Death Of Me (F) #Eng, #Hin, #Tam, #Tel - #BookMyShow SEP 3 ✴️ Countdown: Inspiration4 Mission To Space (D) #Eng - #Netflix SEP 6 ✴️ Kid Cosmic S02 (S) #Eng, #Hin - #Netflix SEP 7 ✴️ On The Verge S01 (S) #Eng, #Hin - #Netfl

📽 Theatrical Releases (SEPTEMBER 2021) :

🗣 F - Film | TBA - To Be Announced 🗓 In USA :-  ✴️ Ted Bundy: American Boogeyman (F) #Eng - SEP 3 ✴️ We Need To Do Something (F) #Eng - SEP 3 ✴️ Zone 414 (F) #Eng - SEP 3 ✴️ Yakuza Princess (F) #Eng - SEP 3 ✴️ Saving Paradise (F) #Eng - SEP 3 ✴️ Hands Up (F) #Eng - SEP 3 ✴️ The Gateway (F) #Eng - SEP 7 ✴️ Dating & New York (F) #Eng - SEP 10 ✴️ Respect (F) #Eng - SEP 10 ✴️ Copshop (F) #Eng - SEP 17 ✴️ Cry Macho (F) #Eng - SEP 17 ✴️ Prisoners Of The Ghostland (F) #Eng - SEP 17 ✴️ The Guilty (F) #Eng - SEP 24 ✴️ Dear Evan Hansen (F) #Eng - SEP 24 ✴️ After We Fell (F) #Eng - SEP 30 🗓 In INDIA :- ✴️ Shang-Chi And The Legend Of The Ten Rings (F) #Eng, #Hin, #Tam, #Tel, #Kan - SEP 3 ✴️ Fast & Furious 9 [F9: The Fast Saga] #Eng, #Hin, #Tam, #Tel, #Kan - SEP 3 ✴️ Dear Megha (F) #Tel - SEP 3 ✴️ The Boss Baby: Family Business (F) #Eng, #Hin - SEP 10 ✴️ Thalaivii (F) #Hin, #Tam, #Tel - SEP 10 ✴️ Yaar Anmulle Returns (F) #Pun - SEP 10 ✴️ Seetimaarr (F) #Tel - SEP 10 ✴️ Don't Breathe

Upcoming on Netflix 🔥🔥

 

Here Are Some Of The Biggest September Releases:-

🗓 3 September:- 🌟 Theatres:- 🔥 Shang-Chi – #English #Hindi #Telugu & #Kannada. (F) 🔥 F9 – #English #Hindi #Tamil #Telugu & #Kannada. (F) 🌟 Disney+Hotstar:- 🔥 Black Widow – #English #Hindi #Tamil #Telugu #Kannada & #Malayalam. (F) 🌟 Netflix:- 🔥 Money Heist S5 Volume 1 – #Spanish #English #Hindi #Tamil & #Telugu. (S) 🌟 PrimeVideo:- 🔥 Cinderella – #English & #Hindi. (F) 🗓 10 September:- 🌟 Theatres:- 🔥 Malignant – #English #Hindi #Tamil & #Telugu. (F) 🌟 PrimeVideo:- 🔥 The Voyeurs – #English. (F) 🌟 Netflix:- 🔥 Lucifer S6 – #English & #Hindi. (S) 🔥 Kate – #English & #Hindi. (F) 🗓 17 September:- 🌟 Theatres:- 🔥 Don't Breathe 2 – #English #Hindi #Tamil & #Telugu. (F) 🌟 VOD/Digital:- 🔥 Prisoners Of The Ghostland – #English. (F) 🌟 Netflix:- 🔥 Sex Education S3 – #English & #Hindi. (S) 🗓 24 September:- 🌟 AppleTV+:- 🔥 Foundation – #English. (S) 🗓 30 September:- 🌟 Theatres:- 🔥 After We Fell – #English. (F) (F):- Films.       

Which region is called Horn of Africa?

Horn of Africa, region of eastern Africa. It is the easternmost extension of African land and for the purposes of this article is defined as the region that is home to the countries of Djibouti, Eritrea, Ethiopia, and Somalia, whose cultures have been linked throughout their long history. Other definitions of the Horn of Africa are more restrictive and exclude some or all of the countries of Djibouti, Eritrea, and Ethiopia.  There are also broader definitions, the most common of which include all the countries mentioned above, as well as parts or all of Kenya, Sudan, South Sudan, and Uganda. Part of the Horn of Africa region is also known as the Somali peninsula; this term is typically used when referring to lands of Somalia and eastern Ethiopia. The Horn contains such diverse areas as the highlands of the Ethiopian Plateau, the Ogaden desert, and the Eritrean and Somalian coasts and is home to the Amhara, Tigray, Oromo, and Somali peoples, among others. Its coasts are washed by the Re

What are Bioceramics?

Bioceramics are a class of advanced ceramics that are defined as ceramic products or components employed in medical and dental applications, mainly as implants and replacements. Bioceramics are not new to mankind and can be classified on the basis of their origin, composition, crystallinity, and type of tissue response associated with them. Because of the positive interactions of bioceramics with human tissues, bioceramics can be utilized in numerous biomedical applications. Bioceramics play a pivotal role in the regeneration of bone. It adds value to the well being of human. Many classes of bioceramics are available for orthopedic application. The choice of the bioceramics depends on the nature of the defects to be repaired. Bioceramic industry evolves rapidly to optimize their synthesis with desirable properties. The mechanical property of bioceramics is engineered to suit different application like reinforcing material, cements, implants, etc. Resorbable bioceramics has immense pote

What was Watergate Scandal?

Watergate is a general term used to describe a complex web of political scandals between 1972 and 1974. The word specifically refers to the Watergate Hotel in Washington D.C. The Watergate scandal was a major political scandal in the United States involving the administration of U.S. President Richard Nixon from 1972 to 1974 that led to Nixon's resignation. The story of Watergate has an intriguing historical and political background, arising out of political events of the 1960s such as Vietnam, and the publication of the Pentagon Papers in 1970. But the chronology of the scandal really begins during 1972, when the burglars were arrested. By 1973, Nixon had been re-elected, but the storm clouds were building. By early 1974, the nation was consumed by Watergate. Watergate had profound consequences in the United States. There was a long list of convictions and other casualties. For example, the aftermath of Watergate ushered in changes in campaign finance reform and a more aggressive

Why do Swimmers shave their Bodies?

Swimming is a competitive athletic sport that has been part of the Olympic Games since 1896. Many different practices have been employed by athletes to get this competitive edge in swimming. Shaving and Tapering may be the two most discussed topics among swimmers for the competitive edge required to outperform in swim heats. It has been proven that shaving the arms, legs, back and every other part of the body exposed to water, reduces frictional drag, improves streamline and heightens the swimmers awareness and feel for the water.  This phenomenon of shaving, is also seen in cyclists and tri-athletes, which not only provides them the competitive edge but if they fall off their bikes at a very high speed, the body hair acts like Velcro, hooking onto the road and tearing away patches of skin. Smoother skin creates a less frictional interaction with the ground allowing them to be unscathed. Body hair for a swimmer, creates a drag up to to 10kg and removing that hair is similar to wearing

Why Do We Have Pubic Hair?

Does having hair down there make any difference other than the visual aesthetics? Is it merely decorative? Or are there benefits to your health? We spoke to a virtual panel of ob-gyns to dissect the pros (and possible cons) of rocking pubic hair. The first, and probably the most important one, is that it protects us from bacteria, and other harmful pathogens, and in doing so, prevents us from getting yeast infections, and UTI’s. But, in addition to simply keeping bacteria away, it also traps dirts,debris, and other microorganisms, that could be potentially harmful much the same way that eyelashes and nose hair do. Pubic hair provides a protective barrier for our body. The second purpose of pubic hair is to reduce friction, primarily during sexual intercourse, but also other activities that may cause chafing in the region. That has also led to pubic hair being termed as a “dry lubricant” suggesting that it’s easier to rub hair against hair, rather than skin against skin. Experts believe

What is Smog Tower? How does it work?

Smog towers are structures designed as large-scale air purifiers to reduce air pollution. Smog towers work on the principle of HEPA filtration or air ionization technology to remove PM2.5 particles. That is, air flowing through a smog tower passes through a filter to provide clean air coming out of it. These methods of cleaning air are scientifically well established and used widely for cleaning indoor air where the air exchange with the outdoors is minimal.  The first prototype of a smog tower was built in 2017 by Dutch artist Daan Roosegaarde in Beijing as a demonstration and art project that Converts the carbon in filtered particles into diamonds. The device will be able to take in air from all 360-degree angles and generate 1,300,000 cubic metres of clean air per hour. The smog tower sucks the polluted air, which is purified by the multiple layers before re-circulated into the atmosphere.  To purify the air; the highly effective H14 grade Highly Effective Particulate Arrestance (HE

Why Aeroplanes use Kerosene rather than Gasoline for Fuel?

 From small airplanes like the Cessna to large twin-engine jets like the Airbus A380, all combustion-powered airplanes require fuel to operate. Like combustion-powered automobiles, they burn fuel to create the power needed to achieve and maintain a safe flying speed. While there are several types of aviation fuel, though, most consist of kerosene. So, why do airplanes use kerosene rather than plain gasoline for fuel? Kerosene has a lowering freezing point than gasoline, making it naturally protected against freezing in otherwise bone-chilling temperatures. But regardless, it takes cooler temperatures for kerosene to freeze than it does for gasoline to freeze. In addition to a lower freezing point, kerosene has a higher flash point than gasoline. Flash point refers to the temperature at which a combustible chemical or substance ignites and turns to vapor. With its higher flash point, kerosene offers higher octane ratings to achieve greater power and efficiency when compared to its gasol

Why Does Alcohol Make You Drunk?

Alcohol. It can be just the buzz we need on a night out or a cozy evening in. But how does alcohol get you drunk? Why do our bodies and brains react in the way they do when alcohol enters our systems? We sip from the cup of truth, with a chaser of science. In your mouth, alcohol mixes with saliva and enters your bloodstream through tiny blood vessels. Your stomach and small intestine absorb more alcohol into your bloodstream once it reaches them. Alcohol dilates your blood vessels. This causes that feeling of warmth. Your brain releases serotonin and dopamine to make you feel good. Your kidneys make and release a whole bunch of pee. This brings down the water levels in your body, increasing alcohol concentration. Alcohol vapor diffuses from your blood into your lungs. Your liver breaks alcohol down into water and carbon dioxide, making you feel less drunk. Factors like age, sex, and body weight can also affect how drunk you feel after consuming booze. Ethanol is the key ingredient in a

What are the effects of Caffeine on Human body?

Many of us rely on a morning cup of coffee or a jolt of caffeine in the afternoon to help us get through the day. But caffeine does so much more than just keeping you awake. It’s a central nervous system stimulant that affects your body in numerous ways. Caffeine provides no nutritional value on its own. It’s tasteless, so you won’t necessarily know if it’s in your food either. Even some medications may contain caffeine without your knowledge. At a minimum, you may feel more energetic, but over time, too much caffeine may cause withdrawal symptoms. Caffeine acts as a central nervous system stimulant. When it reaches your brain, the most noticeable effect is alertness. Studies have also found that people who drink coffee regularly have a lower risk of developing Alzheimer’s and dementia, and cut suicide risk by 45 percent. These benefits are limited to people who drink high-octane coffee, not decaf. Extra caffeine doesn’t get stored in your body either. It’s processed in the liver and e

What is Dark Energy and Dark Matter?

More is unknown than is known. We know how much dark energy there is because we know how it affects the universe's expansion. Other than that, it is a complete mystery. But it is an important mystery. It turns out that roughly 68% of the universe is dark energy. One explanation for dark energy is that it is a property of space. Albert Einstein was the first person to realize that empty space is not nothing. The first property that Einstein discovered is that it is possible for more space to come into existence. As a result, this form of energy would cause the universe to expand faster and faster. Unfortunately, no one understands why the cosmological constant should even be there. We are much more certain what dark matter is not than we are what it is. First, it is dark, meaning that it is not in the form of stars and planets that we see. Observations show that there is far too little visible matter in the universe to make up the 27% required by the observations. Second, it is not

What is Geofencing?

Geofencing is a location-based service in which a creator of an app or other platform/software uses GPS, RFID, Wi-Fi or cellular data to send/trigger messages like SMS, Email or In-App/App-based notifications (pre-programmed action) when mobile devices that enter, exit, or remain parked in the geographical location. You can select and mark off a geographical area from a map and set up a digital barrier around it. This ‘fenced-off’ area can now detect and communicate with mobile devices that breach its territory. Although it has plenty of use-cases across industries but our marketing minds mostly associate it with proximity marketing. A Geofence gives its creator the ability to send messages via SMS, Email or App-based notifications to mobile devices that enter, exit, or remain parked in the marked area.

Why is it better to launch a spaceship from near the equator?

When a spacecraft is launched into orbit, it should end up spinning around the Earth quickly enough not to be pulled back in by the Earth's gravity. The huge rockets used in launching a spaceship help this to happen by giving a huge amount of thrust, enough to achieve escape velocity. However, the spin of the Earth itself can help give it a push as well. Anything on the surface of the Earth at the equator is already moving at 1670 kilometers per hour. If a ship is launched from the equator it goes up into space, and it is also moving around the Earth at the same speed it was moving before launching. This is because of inertia. This speed will help the spacecraft keep up a good enough speed to stay in orbit. Surface of the Earth is traveling faster there. If you look at two spots on one line from pole to pole, one spot on the equator and the other halfway to the pole, each will make a complete revolution in 24 hours and return to where it was. But since the Earth's shape is roun

What is Dredging and Why is it done frequently near Beaches?

Dredging is the removal of sediments and debris from the bottom of lakes, rivers, harbors, and other water bodies. It is a routine necessity in waterways around the world because sedimentation, the natural process of sand and silt washing downstream gradually fills channels and harbors. Dredging often is focused on maintaining or increasing the depth of navigation channels, anchorages, or berthing areas to ensure the safe passage of boats and ships. Vessels require a certain amount of water in order to float and not touch bottom. Dredging is also performed to reduce the exposure of fish, wildlife, and people to contaminants and to prevent the spread of contaminants to other areas of the water body. This environmental dredging is often necessary because sediments in and around cities and industrial areas are frequently contaminated with a variety of pollutants. The disposal of dredged material is managed and carried out by federal, state, and local governments, as well as by private ent

What is a Foghorn and How does it work?

Most often used in foggy conditions, is a device that uses sound to warn vehicles of hazards. Generally marine transport is using the term. When lighthouses are obscured the foghorn provides an audible warning of any dangers to ships. Robert Foulis created the first automated steam-powered foghorn. After hearing his daughter play piano in the fog, he realized the lower notes were more audible. So he designed a device to produce a low frequency sound. His fog signal was installed on Partridge Island in 1859; however, Foulis was in legal battles over his invention for the rest of his life. Celadon Leeds Daboll created a coal-powered foghorn that few lighthouses are using. Foghorns use a vibrating column of air to create a tone although note all vibrations are resulting from the same method. Some use vibrating plates or metal reeds similar to a car horn. Others are similar to a siren where the air is entering through holes in revolving cylinder or disk. Semi-automatic foghorns work using

What are Railway Sleepers and What is their purpose?

Railway sleepers, also called railroad ties, railway ties or crossties, are an important railway component. Generally, the rail sleeper is always laying between two rail tracks to keep the correct space of gauge. In the recent time, concrete sleepers are widely used, especially in Europe and Asia. And in UK, steel ties are common. Besides, plastic composite ties are also employed in the rail track transportation. The functions of sleepers in railway works are as follows: (i) The primary function of a sleeper is to grip the rail to gauge and to distribute the rail loads to ballast with acceptable induced pressure. (ii) The side functions of a sleeper include the avoidance of both longitudinal and lateral track movement. (iii) It also helps to enhance correct line and level of the rails.

What are Anti Drone Systems?

Anti drone systems are used to detect and/or intercept unwanted drones and unmanned aerial vehicles (UAVs). Hostile drones may be used to deploy explosives, smuggle contraband or gather intelligence on sensitive assets, and the proliferation of low-cost UAVs has led to an increase in incidents. Anti drone technology is deployed to protect areas such as airports, critical infrastructure, large public spaces such as stadiums, and military installations and battlefield sites. Modern anti drone radar systems may use a variety of radar technologies, including ESA (electronically scanned array), staring radar, and micro-Doppler, depending on requirements for range, size of protection zone, number of simultaneous targets to track, and ability to deal with environmental clutter. They provide 3D airspace tracking and use sophisticated signal processing techniques to accurately detect and identify drones. As each detection method has its advantages and drawbacks, multi-sensor anti-drone systems

What is Mammography or Mammogram?

A mammogram is an x-ray picture of the breast. It can be used to check for breast cancer in women who have no signs or symptoms of the disease. It can also be used if you have a lump or other sign of breast cancer. Screening mammography is the type of mammogram that checks you when you have no symptoms. It can help reduce the number of deaths from breast cancer among women ages 40 to 70. But it can also have drawbacks. Mammograms can sometimes find something that looks abnormal but isn't cancer. This leads to further testing and can cause you anxiety. Sometimes mammograms can miss cancer when it is there. It also exposes you to radiation. You should talk to your doctor about the benefits and drawbacks of mammograms. Together, you can decide when to start and how often to have a mammogram. Mammograms are also recommended for younger women who have symptoms of breast cancer or who have a high risk of the disease. When you have a mammogram, you stand in front of an x-ray machine. The

What is Monorail and How does it work?

A monorail is a rail-based transportation system based on a single rail, which acts as its sole support and its guideway. The term is also used variously to describe the beam of the system, or the vehicles traveling on such a beam or track. Monorails have been around since the 1800s, but only really came to public attention in the 1950s when Walt Disney installed one in his new theme park: Disneyland, California. Modern monorails are based on a single solid beam that supports and guides the train; the carriages are either suspended beneath the track, or sit on top, with their wheels straddling electricity, which is carried on a ‘third rail’ either within, or connected to, the main beam. Conductive shoes on the carriages then transmit the current to the train. The straddle-beam design is the most widely used. The carriages have pneumatic rubber tyres, which drive along the top of an ‘I’-shaped beam. In fact, monorails are one of the safest forms of transport. The elevated track minimise

Why do People drool in their sleep?

 It may seem a little embarrassing: you wake up and your pillow is drenched in slobber. After you wipe the spit at the corners of your mouth, you might wonder: Why do we drool in our sleep? The body normally produces more than 1 liter of saliva per day. It is produced by salivary glands and is usually swallowed and re-circulated via the bloodstream. Drooling occurs when the saliva collects within the mouth and rather than being swallowed, it drips or runs out past the lips. Why might this occur more at night?  The muscles of the body relax during sleep, especially during REM sleep, and it is possible for your mouth to fall open at this time. One of the biggest reasons your mouth could come open at night is because you can’t breathe well through your nose. We are meant to breathe through our nose, but if congestion is present, our default option is to breathe through the mouth. If this occurs in sleep, saliva may drool onto our pillow.

What are different stages of Sleep?

 There are two basic types of sleep:  rapid eye movement (REM) sleep and non-REM sleep (which has three different stages).  Each is linked to specific brain waves and neuronal activity.  You cycle through all stages of non-REM and REM sleep several times during a typical night, with increasingly longer, deeper REM periods occurring toward morning.  Stage 1 non-REM sleep is the changeover from wakefulness to sleep.  During this short period (lasting several minutes) of relatively light sleep, your heartbeat, breathing, and eye movements slow, and your muscles relax with occasional twitches.  Your brain waves begin to slow from their daytime wakefulness patterns.  Stage 2 non-REM sleep is a period of light sleep before you enter deeper sleep.  Your heartbeat and breathing slow, and muscles relax even further.  Your body temperature drops and eye movements stop.  Brain wave activity slows but is marked by brief bursts of electrical activity.  You spend more of your repeated sleep cycles i

What are White Dwarf Stars?

White dwarfs are dead stars. A single white dwarf contains roughly the mass of our sun in a volume no bigger than our planet. Our sun will become a white dwarf someday. White dwarfs are the hot, dense remnants of long-dead stars. They are the stellar cores left behind after a star has exhausted its fuel supply and blown its bulk of gas and dust into space. These exotic objects mark the final stage of evolution for most stars in the universe – including our sun – and light the way to a deeper understanding of cosmic history. White dwarfs are born when a star shuts down. A star spends most of its life in a precarious balance between gravity and outward gas pressure. The weight of a couple octillion tons of gas pressing down on the stellar core drives densities and temperatures high enough to ignite nuclear fusion: the fusing together of hydrogen nuclei to form helium. The steady release of thermonuclear energy prevents the star from collapsing on itself.

What is Intracytoplasmic Sperm Injection (ICSI) and How does it work?

Before a man’s sperm can fertilize a woman’s egg, the head of the sperm must attach to the outside of the egg.  Once attached, the sperm pushes through the outer layer to the inside of the egg (cytoplasm), where fertilization takes place. Sometimes the sperm cannot penetrate the outer layer, for a variety of reasons.  The egg’s outer layer may be thick or hard to penetrate or the sperm may be unable to swim. In these cases, a procedure called intracytoplasmic sperm injection (ICSI) can be done along with in vitro fertilization (IVF) to help fertilize the egg. During ICSI, a single sperm is injected directly into the cytoplasm the egg. There are two ways that an egg may be fertilized by IVF: traditional and ICSI. In traditional IVF, 50,000 or more swimming sperm are placed next to the egg in a laboratory dish. Fertilization occurs when one of the sperm enters into the cytoplasm of the egg. In the ICSI process, a tiny needle, called a micropipette, is used to inject a single sperm into t

UPPCL Junior Engineer JE Trainee Civil Online Form 2021

  Name of  Post:           UPPCL Junior Engineer JE Trainee Civil Online Form 2021 Post Date :     15 January 2021 | 04:09 PM Post Update Date :       03 February 2021 | 04:13 PM Short Information :         Uttar Pradesh Power Corporation Limited UPPCL Are  Invited     to Online Form for the Recruitment Post of Junior Engineer JE Civil Recruitment 2021. Those Candidates Are Interested to the Following UPPCL Jobs Can Read the Full Notification Before Apply Online. Important Dates Application Begin :  03/02/2021 Last Date for Apply Online :  23/02/2021 Pay Exam Fee Last Date :  23/02/2021 Exam Date :  March 2021 Admit Card Available :  Notified Soon APPLY HERE Application Fee General / OBC :  1000/- SC :  700/ - PH (Divyang) :  10/- Pay the Examination Fee Through Debit Card, Credit Card, Net Banking, E Challan. Age Limit as on  01/01/2021 Minimum Age :  18 Years. Maximum Age :  40 Years. Age Relaxation Extra as per Rules. Vacancy Details  Total : 21 Post Post Name Total Post Eligibility

Why is our voice deeper in the morning?

For most (if not all) people, their voice sounds a lot deeper when they've just woken, compared to how they sound during the day. This effect can easily last for a few hours, like for me today. What are the biological reasons for this? I've heard that it has something to do with relaxation of your muscles during sleep, but I'm not sure how that is supposed to work, and there might be other factors at work. During sleep while we're in a horizontal position, a certain amount of fluid collects in our upper body (read from the neck up), so our vocal cords will swell and thicken slightly. It's why our eyes look more puffy first thing when we arise. During the night, we're not using our vocal cords either but while breathing, air is still passing over them. So while the tissues swell a little, their outer membrane dries a little. To counter the drying effect, the body secretes more mucous as a protective coat. This effect is much worse in people who are mouth breather

Why do we Hiccup?

Hiccups can be annoying but they’re usually short-lived. However, some people may experience recurrent episodes of persistent hiccups. At its most basic, a hiccup is a reflex. It happens when a sudden contraction of your diaphragm causes the muscles of your chest and abdomen to shake. Then, the glottis, or the part of your throat where your vocal cords are located, closes. This creates the noise of air expelled from your lungs, or the “hic” sound that feels involuntary with hiccups. If you find yourself getting hiccups often, eating smaller meals and minimizing carbonated beverages and gassy foods might be helpful.

What caused stuffy or blocked Nose all Winter?

 Do you know someone who seems to deal with a stuffy nose all winter long? Is it you? Sometimes it seems like the winter months and a stuffed-up nose go hand-in-hand. Contrary to popular belief, cold weather itself doesn't cause a stuffy nose but rather, the conditions that come with cold weather often do. Here are a few reasons why you might have a stuffy nose this winter, and what you can do about it. When membranes inside the lining of the nose get swollen it results in difficulty moving air through the nose. This is the classic definition of a stuffy nose. Sometimes nasal drainage happens alongside a stuffy nose. Being in a cold environment does not cause a stuffy nose. Rather, stuffiness in the winter is usually the result of getting lots of colds or more active allergies during wintertime. During the cold winter months, people spend more time inside, which means more exposure to dust, allergens, and cold germs. A runny nose might be more common in the winter months, but that

Why do Wheels sometimes appear to spin backwards?

You've seen this optical illusion in movies but it happens when you're watching in person too. It's a familiar scene to most anyone with a television: The wheels of a forward-moving vehicle will appear at first to spin in one direction. The car puts on some speed and, as you would expect, its wheels rotate faster. But then, the something goes screwy. At a certain point, the spin of the wheels appears to slow, slow, slow. Then, ever so briefly, it stops. When it resumes, the spin is in the opposite direction. By appearance, the car should be moving backward and yet, forward it rolls.  This phenomenon is known as the "wagon-wheel" effect. If, like most people, you're accustomed to seeing the wagon-wheel effect in movies or TV, its explanation is fairly straightforward: Cameras record footage not continuously, but by capturing a series of images in quick succession, at a specified "frame rate." With many movie cameras, that rate is 24 frames per second.

How does Automatic Display Brightness control work in devices like smartphones?

The  device  may  automatically  control  the  display  brightness  using different methods.  In one embodiment, the device may measure the ambient light (lux) using a front-facing ambient-light sensor (ALS) and a rear-facing ALS.  In one embodiment, in addition to the front-facing and rear-facing ALSs and/or front and rear cameras, the device may utilize edge ALSs.  In one embodiment, in addition to the front-facing and the rear-facing ALSs, the device may use a combination of other sensors, such as proximity sensors, a radar-based sensor, or accelerometers to determine the orientation of the device (e.g., laying on a flat surface) and ignore measurements from one of the ALSs.  In one embodiment, in addition to ALSs and/or other sensors, the device may also use the context in which the user is using the device, such as what application software the user is currently using.  In one embodiment, the device may use an advanced sensor-fusion algorithm that takes raw red, green, and blue (R

How do motorcyclists ride a wall of death?

The Wall of Death, also known as  the motordrome is a large vertical barrel-shaped cylinder, usually made out of wood. Motorcyclists perform stunts while riding on the vertical wall. The Wall of Death is a popular travelling carnival act dating from the early-20th century, but there are just a few left today. The motorcyclist starts at the bottom with the crowd looking down into the drum. After ascending a ramp to gain speed, they then begin circling the vertical wall, held in place by centripetal force. There are three forces working on the motorcyclist: gravity, the wall and friction. The motorcyclist must maintain a constant speed to keep the vehicle’s direction of motion constantly changing. They must also lean up at an angle (with respect to the wall) while riding to keep the bike’s torque at zero. This impressive feat occasionally results in accidents if the rider gets too close to the top of the wall or fails to maintain the speed or angle necessary to stay up. British motorcycl

How do Painkillers cure Headaches?

Different painkillers cure headaches in different ways. There are two key types of painkillers that are most commonly used. The first type of painkillers are Aspirin medicines includes ibuprofen and paracetamol, which blocks the body's prostaglandins (the chemical that produces swelling and pain), reducing swelling in the area and therefore reducing the intensity of pain. These aspirin medicines are used frequently for mild to moderate headaches as they can only work up to a certain intensity of pain. The second type of painkillers are narcotic medicines includes morphine and codeine, which blocks the path of pain messages in the spinal cord and brain. These narcotic medicines are used for more severe pain. As both types of painkillers use different methods to treat pain, they can be combined, such as in codamol, which blends codeine and paracetamol.

Do all Bats use Ultrasound?

All of the Mouse-sized micro Bats use ultrasound calls for echolocation but fruitbats and flying foxes (megabats) have lost this ability. Although we can’t hear it, echolocation requires bats to scream at 130 decibels! That takes a lot of energy but the micro Bats are able to harness some of the muscular efforts from their wingbeats to generate the air pressures needed for their ultrasound calls. mega Bats flap their wings too slowly for this to work and considering that flying is already more tiring for them because they are heavier, it makes echolocation too exhausting to be worth it.

What is a Dream and Why do we Dream?

A dream includes the images, thoughts, and emotions that are experienced during sleep. Dreams can range from extraordinarily intense or emotional to very vague, fleeting, confusing, or even boring. Some dreams are joyful, while others are frightening or sad. Sometimes dreams seem to have a clear narrative, while many others appear to make no sense at all. Many suggest that we dream due to a combination of these and other reasons rather than adhering to a singular theory. Additionally, while many researchers believe that dreaming is essential to mental, emotional, and physical well-being, some scientists suggest that dreams serve no real purpose at all. Despite scientific inquiry into the function of dreams, we still don't have a solid answer for why we do it. But, while much remains uncertain about dreaming, many experts have developed theories on the purpose of dreams and new empirical research is providing greater clarity. Some of the more prominent dream theories contend that th