The heart of birds

 Functioning of the bird's circulatory system

 

  Learn about the heart of birds and the circulatory system of birds.  Discover how the heart chambers and circulatory systems of birds are similar and different from those of mammals.

 

  Birdheart: How many chambers does a birdheart have?

  Bird circulation system

 

  Birdheart: How many chambers does a birdheart have?

  The circulatory system is defined as a bodily system whose primary function is to carry oxygenated blood throughout the body, and the vital organ that does so is the heart.  Like the hearts of mammals, a bird's heart has four chambers.  The upper two chambers are called the atria, while the lower two chambers are called the ventricles.  The functions of the four chambers resemble the heart of a mammal.  The four chambers are important because they ensure that oxygenated blood and deoxygenated blood are kept separate.  Oxygenated blood is blood that contains oxygen, while deoxygenated blood is blood that does not contain oxygen.  Oxygenated blood is found only in the heart and lungs, while oxygenated blood can be found throughout the body as it is being transported to all cells in the body.

  Each chamber of the bird's heart has a specific function.  The left ventricle sends oxygenated blood to the body.  This oxygenated blood comes from the left atria.  The right ventricle sends deoxygenated blood to the lungs and the respiratory system collects oxygen.  The right ventricle receives this deoxygenated blood from the right atria before sending it to the lungs.

  The four chambers of the heart make sure that there is no mixture of oxygenated and deoxygenated blood.

  The heart of a bird compared to the human heart

  Birds are one of the few non-mammals with a four-chambered heart.  While birds and mammals share a four-chambered heart, birds have some significant differences from the human heart.  First of all, it is larger than the body of a bird compared to the human heart.  Due to the energy required for flight, and other daily activities of the bird, such as swimming, running, and in some cases, migration, the bird must have a circulatory system and heart that can maintain an active lifestyle.  Thus because of the big heart.  The volume of heart stroke is another important difference between bird and human hearts.  The volume of stroke is the amount of blood that is pumped to the rest of the body each time the heart contracts.  Considering the size of the bird's heart, it is able to pump more blood with each contraction than the human heart.  Similarly, the heartbeat of birds is faster than that of humans.  The average human heart rate is 60 to 100 beats per minute, while the bird's heart rate is 192 to 396 beats per minute.

  The hearts of birds, while ultimately of the same structure, can still vary depending on the type of species.  Different species of birds have adapted over time to use different skills and behaviors based on their habitat, food preference, and flight patterns.  A bird that is primarily adapted to glide using the air updraft does not need to pump its blood as fast as a bird that flutters its wings to push and lift.  Adapted.

  One of the major functions of the circulatory system is to pump oxygenated blood and nutrients throughout the body.  The heart will pump oxygenated blood to the lungs to absorb oxygen through the pulmonary veins.  Because birds' hearts pump faster, birds have more pulmonary veins than humans that help carry blood.

  Notice the difference in the size of the ventricles.  One can observe the muscles growing around the ventricles of the bird's heart.

  What is the circulatory system?

  Imagine yourself running on a cold autumn day.  The sun is shining and the leaves are changing color.  You may feel your body pumping blood, which gives you strength through exercise throughout the day.  When you are running, your heart is working hard to pump blood, which carries oxygen and nutrients throughout your body so that you can produce energy.  Your heart, blood, and the vessels that carry it are collectively called the circulatory system.  All animals have a circulatory system, and today we are going to look at the structure and function of the circulatory system of birds, which are amazingly similar to our humans.

 

 

  Bird circulation system

  Like the mammal's circulatory system, the bird's circulatory system consists of veins, arteries, and capillaries.  After delivering oxygen and nutrients to all parts of the body, the veins bring oxygenated blood back to the heart.  Arteries are responsible for carrying oxygenated blood to all parts of the body.  The capillary is a small vessel in the circulatory system that supplies blood and nutrients to cells.  Capillaries are also responsible for removing cell waste products.  An example of a cell waste product is carbon dioxide.  Carbon dioxide is carried into the lungs to be expelled from the body.

  Structure of the Bird Circulation System

  To begin with, let's start with the heart, which is like the boss of the circulatory system.  In birds and mammals, the heart is divided into four parts, called chambers.  The heart's job is to deliver oxygen and nutrients to the body through the blood.  When blood is in the body, oxygen is used to make energy.

  The blood then flows to the heart in the first chamber, or right atrium, through the blood vessels called the veins, which carry all the blood to the heart.  From the right atrium, deoxygenated blood travels to the right ventricle.  The right ventricle is a large chamber that carries blood to the lungs.

  In the lungs, the blood carries oxygen and travels to the left atrium of the heart.  The left atrium pumps blood to the left ventricle, the strongest chamber of the heart.  The left ventricle's job is to pump blood throughout the body through the arteries, so it needs a thick wall of muscle to do such a big job.  From there, the process is repeated with each heartbeat.

  Only the heart of birds and mammals has four chambers.  The goal is to efficiently distribute oxygenated and deoxygenated blood.  Other animals have two chambers in their heart or no chamber in their heart so all the blood gets mixed together.  To be the most efficient at delivering oxygen, we want to keep the oxygenated blood flowing to the body and the de-oxygenated blood returning to the heart to get more oxygen.

  Draw a street.  Cars on the roads are like blood in our bodies.  Our streets usually have two or more lanes.  One you can imagine going to the city, and the other goes to the country.  With two lanes, traffic can easily flow in two directions.  However, if there were no lanes, all traffic would merge together, going in both directions.  There will probably be a lot of accidents and people will not be able to get to where they are going so effectively.  This is why a heart with 4 chambers is helpful for an animal that needs a lot of energy.  Next, let's look at some other adaptations of the bird's circulatory system.

  The size of a bird's heart

  The heart of a bird, although similar to mammals, has a slightly different structure for their lifestyle.  Birds have larger hearts than mammals.  A human heart is about 0.4% of our body weight, while a bird's heart can be up to 4% of its body weight!

 

  What is the circulatory system?

  Imagine yourself running on a cold autumn day.  The sun is shining and the leaves are changing color.  You may feel your body pumping blood, which gives you strength through exercise throughout the day.  When you are running, your heart is working hard to pump blood, which carries oxygen and nutrients throughout your body so that you can produce energy.  Your heart, blood, and the vessels that carry it are collectively called the circulatory system.  All animals have a circulatory system, and today we are going to look at the structure and function of the circulatory system of birds, which are amazingly similar to our humans.

  Structure of the Bird Circulation System

  To begin with, let's start with the heart, which is like the boss of the circulatory system.  In birds and mammals, the heart is divided into four parts, called chambers.  The heart's job is to deliver oxygen and nutrients to the body through the blood.  When blood is in the body, oxygen is used to make energy.

  The blood then flows to the heart in the first chamber, or right atrium, through the blood vessels called the veins, which carry all the blood to the heart.  From the right atrium, deoxygenated blood travels to the right ventricle.  The right ventricle is a large chamber that carries blood to the lungs.

  In the lungs, the blood carries oxygen and travels to the left atrium of the heart.  The left atrium pumps blood to the left ventricle, the strongest chamber of the heart.  The left ventricle's job is to pump blood throughout the body through the arteries, so it needs a thick wall of muscle to do such a big job.  From there, the process is repeated with each heartbeat.

  Only the heart of birds and mammals has four chambers.  The goal is to efficiently distribute oxygenated and deoxygenated blood.  Other animals have two chambers in their heart or no chamber in their heart so all the blood gets mixed together.  To be the most efficient at delivering oxygen, we want to keep the oxygenated blood flowing to the body and the de-oxygenated blood returning to the heart to get more oxygen.

  Draw a street.  Cars on the roads are like blood in our bodies.  Our streets usually have two or more lanes.  One you can imagine going to the city, and the other goes to the country.  With two lanes, traffic can easily flow in two directions.  However, if there were no lanes, all traffic would merge together, going in both directions.  There will probably be a lot of accidents and people will not be able to get to where they are going so effectively.  This is why a heart with 4 chambers is helpful for an animal that needs a lot of energy.  Next, let's look at some other adaptations of the bird's circulatory system.

  The size of a bird's heart

  The heart of a bird, although similar to mammals, has a slightly different structure for their lifestyle.  Birds have larger hearts than mammals.  A human heart is about 0.4% of our body weight, while a bird's heart can be up to 4% of its body weight!

 

  Frequently Asked Questions

  How many times per minute does a bird's heart beat?

  The heartbeat of a bird depends on the species.  For example, a domestic fowl beats at 245 beats per minute, while a hummingbird beats at 1260 beats per minute.

  Why is the bird's circulatory system efficient?

  The four-chambered heart of a bird ensures that oxygenated blood and deoxygenated blood never mix.  Separating oxygenated blood from deoxygenated blood ensures that the highest concentration of oxygen in the blood is delivered to the cells.

  What is the difference between a bird's heart and a human heart?

  A bird's heart is larger than its body size, while a human heart is larger than its human body size.

Heart

 Heart

  

 Your heart is an important part of your cardiovascular system, a network of blood vessels that pumps blood throughout your body.  It also works with other body systems to control your heart rate and blood pressure.  Your family history, personal health history and lifestyle all affect how your heart works.

 

   What is the heart?

   The heart is a fist-shaped organ that pumps blood throughout your body.  It is the main organ of your circulatory system.

   Your heart has four main chambers made up of muscles and moves by electrical impulses.  Your brain and nervous system direct the work of your heart.

   The Cleveland Clinic is a non-profit educational medical center.  Advertising on our site helps our mission.  We do not endorse non-Cleveland Clinic products or services.  Policy

   What does the outline of the heart look like?

   There are components inside and outside your heart that direct blood flow:

   Inside the heart

   Out of heart

   Function

   What is the function of the heart?

   The primary function of your heart is to carry blood throughout your body.  Your heart too:

   Controls your heart rate and rhythm.

   Maintains your blood pressure.

   How does your heart work with other organs?

   Your heart works with other body systems to control your heartbeat and other bodily functions.  The basic systems are:

   Nervous system: Your nervous system helps control your heartbeat.  It sends signals to your heart to beat slowly during rest and fast during stress.

   Endocrine System: Your endocrine system sends hormones.  These hormones are said to narrow or relax your blood vessels, which affects your blood pressure.  Hormones from your thyroid gland can also tell your heart to beat faster or slower.

   Anatomy

   Where is your heart

   Your heart is in front of your chest.  It sits slightly back and to the left of your sternum.  Your ribs protect your heart.

   Where is your heart

   Your heart is a little on the left side of your body.  It sits between your right and left lungs.  The left lung is slightly smaller to make room for the heart in your left chest.

   How big is your heart?

   Everyone's heart is a little different in size.  In general, the hearts of adults are about the same size as two closed fists, and the hearts of children are about the size of a fist.

   How much does your heart weigh?

   On average, an adult's heart weighs about 10 ounces.  Your heart may weigh a little more or a little less depending on your body size and gender.

   What are the parts of heart anatomy?

   Parts of your heart are like parts of a home.  In your heart is:

   Walls

   Chambers.

   Valves (doors).

   Blood vessels (plumbing).

   Electrical transmission system (electricity).

   The walls of the heart.

   The walls of your heart are the muscles that contract and relax to send blood throughout your body.  A layer of muscle tissue called the septum divides the walls of your heart to the left and right.

   There are three layers to the walls of your heart:

   Endocardium: inner layer.

   Myocardium: The middle layer of muscle.

   Epicardium: The protective outer layer.

   The epicardium is a layer of your pericardium.  The pericardium is a protective sac that covers your entire heart.  It produces fluid to lubricate your heart and prevent it from rubbing against other organs.

   Chambers of the heart

   Your heart is divided into four chambers.  Above you are two chambers (atrium, aggregate atria) and two below (ventricles), one on each side of the heart.

   Right atrium: Two large veins carry oxygen-deprived blood to your right atrium.  The superior vena cava carries blood from your upper body.  The inferior vena cava carries blood from the lower part of the body.  The right atrium then pumps blood to your right ventricle.

   Right ventricle: The lower right chamber pumps oxygen deprived blood to your lungs through the pulmonary artery.  The lungs reload the blood with oxygen.

   Left atrium: After filling the lungs with oxygen, the pulmonary veins carry blood to the left atrium.  This upper chamber pumps blood into your left ventricle.

   Left ventricle: The left ventricle is slightly larger than the right.  It pumps oxygen-rich blood to the rest of your body.

   Heart valves

   Your heart valves are like doors between the chambers of your heart.  They open and close to allow blood to flow.

   Atrioventricular (AV) valves open between the chambers of your upper and lower heart.  These include:

   Tricuspid valve: The door between your right atrium and the right ventricle.

   Mitral valve: The door between your left atrium and the left ventricle.

   Semilunar (SL) valves open when blood leaks from your ventricles.  These include:

   Aortic valve: When blood flows from your left ventricle to your aorta (the artery that carries oxygenated blood to your body).

   Pulmonary valve: Opens when blood flows from your right ventricle to your pulmonary arteries (the only arteries that carry oxygen deficient blood to your lungs).

   Blood vessels

   Your heart pumps blood through three types of blood:

   The arteries carry oxygen-rich blood from your heart to your body tissues.  The exception is your pulmonary arteries, which go into your lungs.

   The veins carry oxygen-deprived blood to your heart.

   Capillaries are small blood vessels where your body exchanges oxygen-rich and oxygen-deprived blood.

   Your heart receives nutrients through the coronary artery network.  These arteries run along the surface of your heart.  They serve the heart themselves.

   Electronic transmission system

   Your heart's transmission system is like a home's electrical wires.  It controls the rhythm and speed of your heartbeat.  These include:

   Sinotrail (SA) node: Sends signals that increase your heart rate.

   Atrioventricular (AV) node: conducts electrical signals from the upper chambers of your heart to its lower part.

   You also have a network of electrical bundles and fibers in your heart.  This network includes:

   Left Bundle Branch: Sends electrical impulses to your left ventricle.

   Right Bundle Branch: Sends electric impulses to your right ventricle.

   Its bundle: sends movements from your AV node to Purkinje fibers.

   Porcine fibers: Squeeze the ventricles of your heart and pump blood.

   Conditions and disorders

   What conditions and disorders affect the human heart?

   Heart conditions are one of the most common types of disorders affecting people.  In the United States, heart disease is the leading cause of death for people of all genders and most ethnic and racial groups.

   Common situations that affect your heart include:

   Atrial fibrillation (AFB): Irregular electrical stimulation in your atrium.

   Arrhythmia: The heart beats very fast, very slow or with irregular rhythm.

   Cardiomyopathy: Abnormally thickening, enlargement, or tightening of your heart muscle.

   Heart failure: When your heart is too hard or too weak to pump blood throughout your body properly.

   Coronary artery disease: plaque formation that narrows the coronary arteries.

   Heart attack (myocardial infarction): A sudden blockage in a coronary artery that cuts off oxygen to the part of your heart muscle.

   Pericarditis: Inflammation of the lining of your heart (pericardium).

   take care of

   How can I keep my heart healthy?

   If you have a condition that affects your heart, follow your healthcare provider's treatment plan.  It is important to take the prescribed medication.

   You can also make lifestyle changes to keep your heart healthy.  You can:

   Gain and maintain a healthy weight according to your gender and age.

   Drink moderate amounts of alcohol.

   Eat a heart-healthy diet with plenty of fruits, vegetables and whole grains.

   Exercise moderately for at least 150 minutes per week.

   Limit your sodium intake.

   Manage your stress with healthy strategies like meditation or journalism.

   Quit smoking and / or using tobacco products and avoid second hand smoke.

   Frequently Asked Questions

   What should I ask my doctor about my heart?

   You can ask your healthcare provider:

   How does my family history affect my heart health?

   What can I do to lower my blood pressure?

   How does my cholesterol level affect my heart?

   What are the symptoms of a heart attack?

   What foods should I eat to prevent heart disease?

   A note from the Cleveland Clinic

   Your heart is the main organ of your circulatory system.  It pumps blood throughout your body, regulates your heart rate and maintains blood pressure.  Your heart is a little like home.  It has walls, rooms, doors, plumbing and electrical systems.  All parts of your heart work together to send blood and nutrients to your other organs.  There are some common types of situations that affect your heart.  Ask your healthcare provider how you can improve your heart health. (Exercise)

Cobra Snake

 Reptiles

   Cobra

   snake

  

  

   Cobras, any of the various species of highly venomous snakes, most of which spread their ribs to form hoods.  Although the hood is a characteristic of the cobra, they do not all have a deep connection.  Cobras are found from South Africa through South Asia to the islands of Southeast Asia.  Throughout their range, various species of snakes are a favorite, frightening them into managing their defensive posture.  The snake swings in response to the movement and perhaps to the music of the charmer, who knows how to avoid a relatively slow strike and who may have pulled out the snake's teeth.  In the front of the mouth, small teeth have a closed duct, which releases toxins.  Cobra venom usually contains neurotoxins that are active against the prey's nervous system - mainly small snakes and other snakes.  Biting, especially from large species, can be fatal depending on the amount of poison.  Neurotoxins affect breathing, and although antivirals are effective, they should be given immediately after a bite.  Thousands die each year in South and Southeast Asia.

   Cobra

   The largest venomous snake in the world is the King Cobra, or Hamdriad (Ophio Figus hanna).  Found in forests from India to Southeast Asia to the Philippines and Indonesia, it preys mainly on other snakes.  The maximum verified length is 5.6 meters (18 feet), but not more than 3.6 meters (12 feet) at most.  King cobras protect the nest of 20 to 40 eggs, which are housed in a mound of leaves collected by the female.  If a hunter or someone comes too close, the guardian parents will attack.  Not all cobras are egg layers.

   King Cobra, the world's largest venomous snake.

  

   King Cobra

 

   Watch the Herpes Pest Mango attack and kill its common prey, a venomous Asian cobra.

   A mangosteen (herpes) attacks an Asian cobra (Naja Naja).

  

   

   The Indian cobra (or Indian-eyed cobra, naja naja) was formerly considered to be the same species, with a distribution similar to that of the king cobra.  Recently, however, biologists have discovered that there are about a dozen species in Asia, some of which are poisonous and some not.  They vary in size (mostly between 1.25 and 1.75 meters) and their venom toxicity.  Spitters pass the venom through their teeth, squeezing the muscles of the venom ducts and forcing air out of one of the lungs.

   Indian Cobra, or Cobra with Indian Eyes (Naja Naja)

   The head and neck area of ​​the Indian cobra, or Indian cobra (Naja Naja).

  

   There are spitting and non-spitting cobras in Africa, but African cobras are not related to Asian cobras, nor are they related to each other.  The South African Ringhal, or Spitting Cobra) and Black-necked Cobra (Naja nigricollis), a small form widely distributed in Africa, are spitting.  The venom is properly applied to the victim's eyes more than two meters away and can cause temporary, or even permanent, blindness unless it is immediately washed.  Egyptian cobra (N. haje) - Probably a dark, narrow-headed species from ancient times, about two meters long, extending from Africa and east to Arabia.  Its usual prey consists of frogs and birds.  The tree cobra (genus Pseudohaje) is found in Equatorial Africa, along with mambas and the only aquatic animal in the Elapidae family.

   Black-necked Cobra (Naja Negriculus)

   Black-necked Cobra (Naja Negriculus).

Michael Jackson

 Michael Jackson

 

  Who was Michael Jackson?

  How did Michael Jackson die?

  Where was Michael Jackson born?

  How did Michael Jackson become famous?

  What were Michael Jackson's exploits?

  Michael Jackson, formerly Michael Joseph Jackson or Michael Joe Jackson (see researcher's note), (born August 29, 1958, Gary, Indiana, USA - died June 25, 2009, Los Angeles, California), American singer, songwriter  Nigar, and dancers who were the world's most popular entertainers in the early and mid-1980's.  Growing up in Gary, Indiana, in one of the most famous musical families of the Rock era, Michael Jackson was the youngest of five brothers and the most talented to be raised by his father, Joseph, in a wonderful group of Child Stars.  Shape called Jackson 5.  In addition to Michael, Jackson 5's members were Jackie Jackson (Sigmund Jackson's name; born May 4, 1951, Gary), Tattoo Jackson (Toriano Jackson's name; born October 15, 1953, Gary), Jermaine Jackson.  (b. December 11, 1954, Gary), and Marilyn Jackson (born March 12, 1957, Gary).

  Michael Jackson

   And Roll Hall of Fame and Museum (1997) Grammy Award (1995) Grammy Award (1989) Grammy Award (1985) Grammy Award (1984) Grammy Award (1983) Grammy Award (1979) ...

 

  Barry Gordy, Jr., president of Motown Records, was impressed with the group and signed it in 1969.  With the highest fashion, the greatest talent, the fastest choreography, and a young, soulful enthusiasm, Jackson 5 became an instant success.  He scored four consecutive number one pop hits in 1970 with "I Want You Back", "ABC", "The Love You Save" and "I'll Be There".  Michael topped the pop charts as a solo performer.  Ben "and" Rakin 'reached second place with "Robin" and with Jackson 5 producing trend setting dance tracks such as "Dancing Machine", the series of family hit movies for Motown continued until 1975.  Michael matured, his voice changed, family tensions arose, and a contract broke down. The group eventually broke up with Motown, moving to Epic Records as Jackson. Jermaine as a solo performer.  He lived in Motown and was replaced by his youngest brother, Randy Jackson (fully Steven Randall Jackson; born October 29, 1961).  Sister Janet Jackson began her singing career in the early 1980's. However, Michael's solo albums took on a very different status.

  Jackson 5

  Jackson 5, 1970.

  Michael Ochs Archives / Getty Images

  Britannica Quiz

  80s Music Quiz

  The 1980s were a turning point in rock and pop music.  And with the founding of MTV in 1981, music videos became one of the most popular and creative forms of musical media.  Can you find the famous song of 80's with its artist?  Your Reward: Watch all the videos in the explanation of this quiz.

  "King of Pop"

  Jackson's first solo attempt at Epic, of the Wall (1979) exceeded all expectations and was the best-selling album of the year (it eventually sold over 20 million copies).  Produced by industry veteran Quincy Jones, Off the Wall featured the massive international hit singles "Don't Stop 'Till You Get Enough" and "Rock With You", both of which showcased Michael's passionate style.  And took advantage of the modern disco dance trend.  Three years later, he returned with another collaboration with Jones, Thriller, a Tour de Force that included a string of guest stars and took it to superstardom around the world.  Thriller has won several awards, including eight record-breaking Grammys.  Has been on the charts for over two years.  And sold over 40 million copies, making it the longest-selling album in history.  The album's first single, "The Girl from Mine", an easy pairing with Paul McCartney, peaked at number one on the rhythm and blues charts and at number two on the pop charts in the fall of 1982.  Follow-up singles, "Billy Jane", a power-generating dance track, and Jackson's trademark "Moon Walk" car for dance, topped the pop charts, as did "Beat It", featuring famous guitarist Eddie Van Helen.  An endless solo was presented.  In addition, "Beat It" helped break the artificial barrier between black and white artists on the radio and in the emerging format of music videos on television.

  Michael Jackson

  Michael Jackson in his music video for "Cat Jane", which debuted on MTV in 1983.

  Eugene Adibari / Shutterstock.com

 

 

  Michael Jackson

  Michael Jackson, 1984.

 

  Until 1984, Jackson was known worldwide as the "King of Pop".  His much-anticipated Victory Reunion Tour with his brothers was one of the most famous concert events of 1984.  In 1985, Jackson and Lionel Richie wrote "VR the World", a single signed for USA for Africa, an All-Star project aimed at famine.  Relief More Solo Albums - Bad (1987), which made five chart-topping successes (including the title song and "Man in the Mirror"), and Dangerous (1991), most of which featured New Jack swing sensation Teddy Riley.  Were prepared  Strengthened Jackson's dominance over pop music.  He was inducted into the Rock and Roll Hall of Fame in 2001.  Jackson 5 was added in 1997.

  Michael Jackson

  Michael Jackson performing with his brothers during the Victory Reunion Tour, Los Angeles, 1984.

 

  Michael Jackson

  Michael Jackson performing during the Super Bowl XXVII, 1993 Half Time Show.

 

  Michael Jackson

  Michael Jackson, 1996.

  Phil Walter - Hilton Archives / Getty Images

  Allegations of child molestation, financial hardship and death

  Jackson's whimsical, isolated lifestyle became increasingly controversial in the early 1990's.  Her reputation was severely damaged in 1993 when she was accused of child abuse by a 13-year-old boy with whom she was friends.  The civil case was decided out of court.  In 1994, Jackson secretly married Lisa Marie Presley, daughter of Elvis Presley, but their marriage lasted less than two years.  Soon after, Jackson remarried, and the marriage produced children, although it ended in divorce.  When he was an international celebrity, the United States was slow to restore his image, and he suffered even more damage in November 2003 when he was arrested and charged with child abuse.  ۔  Jackson was acquitted in 2005 after a 14-week trial that became part of the media circus.

  Michael Jackson

  Michael Jackson shakes hands with fans after being acquitted in a 2005 child abuse case.

  Win / Getty Images

  As a result of these events, Jackson suffered a financial catastrophe that resulted in the sale of many of his notable assets, including, ultimately, his magnificent Newland farm.  He was preparing for a series of high-profile concerts that he hoped would make a comeback when he died suddenly of a heart attack on June 25, 2009 - resulting in a blow to his fans.  A wave of grief swept over him, culminating in a memorial service for his life and legacy.  July 7 at the Staples Center in Los Angeles, where friends like Steve Wonder, Barry Gordy, Jr., Brooke Shields, and El Sharpton pay tribute.  In August 2009, the coroner declared Jackson's death a homicide.  The reason was a deadly combination of sedatives and propofol, an anesthetic.  In November 2011, Jackson's personal physician was found guilty of involuntary manslaughter.

  The documentary This Is It, obtained from over 100 hours of footage compiled during rehearsals for the engagement of Jackson's scheduled 50 concert returns to London, premiered in October 2009.  In 2009, Jackson's 14-minute music video "Thriller" (1983), directed by John Lands, was added to the Library of Congress's National Film Registry, the first music video to receive such an award.  Later documentaries included Leung Newland (2019), which focuses on two men who allege that Jackson sexually abused them when they were children.

  Ricky Vincent

  Editors of the Encyclopedia Britannica

  Home

  Entertainment and pop culture

  Actors

  Beyonc

  American singer

  deeds

  Alternative titles: Beyonce Gisele Knowles

  • Edit the date by the editors of the Encyclopedia Britannica.

  List box

  Top Questions

  What are the names of Beyonc's children?

  Why is Beyonc famous?

  Which award did Beyonc win?

  Beyoncé, formerly Beyoncé Giselle Knowles (born September 4, 1981 in Houston, Texas, US), is an American singer, songwriter and actress who rose to fame as the lead singer of the R&B group Destiny's Child in the late 1990's.  And then a great start.  Successful solo career.

  Beyonc

  View all media

  Born: September 4, 1981 (age 40) in Houston, Texas

  Founder: The child of destiny

  Awards and Awards: Grammy Award (2021) Grammy Award (2019) Grammy Award (2017) Grammy Award (2010) Grammy Award (2009) Grammy Award (2006) Grammy Award (2005) Grammy Award (2004) Grammy Award (2004) Grammy  Award (2004) Award (2000) Grammy Award (2021): Best R&B Performance Grammy Award (2021): Best Rap Performance Grammy Award (2021): Best Rap Song Grammy Award (2021): Best Music Video Grammy Award (2020)  ): Best Music Film Grammy Award (2019): Best Urban Contemporary Album Grammy Award (2017): Best Urban Contemporary Album Grammy Award (2017): Best Music Video Grammy Award (2015): Best R&B Performance Grammy Award (2015)  : Best R&B Song Grammy Award (2015): Best Surround Sound Album Grammy Award (2013): Best Traditional R&B Performance Grammy Award (2010): Song Of The Year Grammy Award (2010): Best Family Pop Vocal Performance  Grammy Award (2010): Best Female R&B Vocal Performance Grammy Award (2010): Best Traditional R&B Vocal Performance Grammy Award (20)  10): Best R&B Song Grammy Award (2010): Best Contemporary R&B Album Grammy Award (2007): Best Contemporary R&B Album Grammy Award (2006): Best R&B Performance by Pair or Vocals Grammy Award (2004)  Best Female R&B Vocal Performance Grammy Award (2004): A Pair or Group with Best R&B Performance Vocals Grammy Award (2004): Best R&B Song Grammy Award (2004): Best Contemporary R&B Album Grammy Award (2004)  2004): Best Rap / Song Collaboration Grammy Award (2002): Best R&B Performance by Pair or Group with Vocal Grammy Award (2001): Pair or Group Best R&B Performance with Vocal Grammy Award (2001):  The best R&B song ...

  (Show more)

  Notable works: "Irreplaceable" "Lemonade"

  Notable family members: Tina Knolls, daughter of JAY-Z daughter Matthew Knolls, married J. Z. (2008 – present) Blue Ivy Carter's mother (born 2012) Rumi Carter's mother (born 2017) Sir Carter's mother (b.  2017) Solang Knowles' sister ...

  (Show more)

  View all relevant content

  At the age of nine, Beyonc کے formed Destiny Child (originally called Girls' Time), a group of girls singing in 1990 with childhood friends.  The group lost the Star Search television talent show in 1992, and was dropped from the recording contract three years later before the album was released.  In 1997, Destiny's Child's fortunes turned around with a Colombian recording contract and then a debut album called "No, No, No Part 2".  Their follow-up album, The Writings on the Wall (1999), won the group two Grammy Awards and sold over eight million copies in the United States.  Survivor (2001), the group's third album, topped the Billboard 200 charts.

  Child of destiny

  Destiny Child: (from left) Beyonc ،, Michelle Williams, and Kelly Rowland, 2005.

  PRNewsFoto / McDonald's / AP Images

  Britannica Quiz

  Pop culture quiz

  Are you a princess of pop?  King of culture?  Answer these questions to see if you are an entertainment expert.

  Beyonc was apparently the leader of the group and wrote hit songs for Destiny's Child, such as "Bootylicious".  Eventually, the group paved the way for individual projects to move forward.  Beyonc استعمال used her songwriting skills to record her first solo album, Dangerously In Love (2003).  The album debuted for analysis, and with its stellar single "Crazy in Love", which featured rapper JZ, topped the charts worldwide.  Beyonc جیت won five Grammy Awards in 2004, including Best Contemporary R&B Album and Best Female R&B Voice Performance.

  Beyonc

  Beyonc, 2003.

  PRNewsFoto / Ford Motor Company / AP Images

  Destiny's Child reunited in 2004 to release Destiny Fulfled.  Although not generally acclaimed as the group's previous endeavor, the album sold over seven million copies worldwide and produced several hit singles.  The trio embarked on a world tour in 2005, during which they announced that the group would formally end.  That same year, they released # 1, a collection of popular songs and the number one hit.

  In 2006, Beyonc released her second solo studio album, BD, which featured several producers, including the hit duo Neptune.  Although most of the album echoed the 1970s funk, the pop ballad "Irreplaceable" became its most successful single.  She and JZ married in 2008, and the union made them one of the highest paid couples in the entertainment industry.  Later this year, Beyonc released a double album, IM Sasha Ferris.  Where the first half (I am) found it in self-awareness mode, the second (Sasha Ferris) included songs that were more suitable for the dance floor.  The album made a number of successful films overall, including "Single Ladies (Put a Ring on It)", and was instrumental in Beyonc غ's dominance at the 2010 Grammy Awards.  Her six awards, including Best Song of the Year, Best Female Pop Vocal Performance, and Best Contemporary R&B Album, were the most Grammys collected by a single female artist overnight.

  A few days after the winning headline performance at the Glastonbury Festival in England, Beyonc 4 released 4 (2011), a twisted blend of ballads and dance tracks that ranged from Motoon-era flashlight songs to rapper M.I.A's audio collages.  Gave birth to effects.  In early 2013, Destiny's Child reunited for a half-time at the Super Bowl and released a new song, "Nuclear."  Soon after, Beyonc collected the Grammys for her single "Love On Top".  She returned at the end of the year with a confident, emotional and expressive Beyonc, who was proud of the performances of brand-name producers and Nigerian author Cheemamanda Ngozi Adichi and the singer's youngest daughter, Blue Ivy.  The record, which was initially offered exclusively on iTunes, was promoted as a "visual album", with music videos made with each track.  The single "Drink in Love", which included JZ, won several Grammys, including the best R&B song.

 

  Jason Merritt

  On the wide and musically diverse Lemonade (2016), Beyonc نے focuses on the themes of deception and perseverance.  Considered another visual album, it debuted as an HBO television special.  Lemonade received rave reviews, and Beyonc received two Grammys, including the Best Music Video Award for the song "Formation."  In 2018, Beyoncé and Jay-Z released a joint album, Everything Is Love, which was credited to Carters, and won the Grammy for Best Citizen Modern Album.

  Beyonc began her acting career in 2001 with the television film Carmen: A Hip Hopper, which aired on MTV.  The role of Foxy Cleopatra in Austin Powers in Goldmberg (2002) made her a movie star and starred in The Fighting Temptations (2003) and The Pink Panther (2006).  In 2006, she played Dina Jones in Dream Girls, a film adaptation of the 1981 Broadway musical about the 1960s singing group.  Beyonc's performance was nominated for a Golden Globe Award and her song "Snow" was nominated for an Academy Award.  She later starred in Cadillac Records (2008), in which she played singer Eta James, and thriller Obsid (2009), before the voice of the fairy-like jungle queen in the animated episode (2013).  To be given

  Still advertising for Dream Girls

  Jennifer Hudson (right), Anika Noni Rose (left), and Beyonce Knowles (center) as R&B group Dreams in Dream Girls (2006).

 

  For the 2019 remake of Disney's The Line King, Beyonc آواز voiced Nalla's character and performed several songs on the soundtrack, including "Spirit", an original song she wrote, and "Can You Fail".  The song "Low Tonight" was also included.  He also released an album based on the movie The Line King: The Gift.  The songs on this record were later shown on the visual album Black Is King (2020), which aired on the streaming service Disney +.  For the single "Black Parade", Beyonc گری won the Grammy for Best R&B Performance in 2021.  This year she received three other awards for setting the record for most Grammys (28) won by a female artist.  Beyonc بعد later starred and performed "Be Alive" in the film King Richard (2021), and won an Oscar nomination for Best Original Song.

White Hole

 

• What is a white hole?

   

  The white hole is a fictitious feature of the universe.  It is considered the antithesis of black holes.  Just as black holes do not allow anything to come out of their surface, so white holes are an explosion of matter and energy and nothing can go inside them.

  White holes are a possible solution to the laws of general relativity.  This law means that if there are eternal black holes in the universe, then there must be a white hole.  This is a time change of a black hole.  Gravity is expected of them, so they attract objects, but anything in the way of a collision with a white hole will never reach it.

  Ideally, if you go near a white hole in a spacecraft, you will be drowned in a huge amount of energy, which will destroy your spacecraft.  Even if your spacecraft can withstand gamma rays, the light itself will begin to slow you down, just as wind resistance slows down a vehicle moving on the ground.

  And even if the spaceship is designed not to be affected by energy emissions, space-time will strangely revolve around a white hole.  Going closer to the white hole would be like going up.  When you move less, the required acceleration will be more.  There is not enough energy in the universe to take you inside.

  Of course, this is quite contradictory.  How can energy in a white hole seem to come from anything other than space-time?  This is one of the reasons why they are so rare.  However, there are some theories in which white holes are possible, but perhaps not so much as the general addition.

  As they are alleged counterparts of black holes, white holes will also be formed by the uniqueness of gravity.  A unit is a dotted feature in space-time where the field of gravity becomes infinite.  In physics, infinite values ​​are usually indicative of missing pieces in a theory, so it is not surprising that quantum mechanics and relationships strive to explain the finer details of individuality.

  Many phenomena are presented as white holes.  They are usually chosen because they are mysterious things that we could not explain in detail.

  Explosions of gamma rays, rapidly rotating pulsars, and black holes reaching the end of their lives have been considered.  Even the Big Bang has been described as a white hole.  But so far, no white holes have been seen directly, and even their ideological existence raises some red flags.  White holes seem to be used as a placemark until further notice or a better idea emerges.

 

  The Big Bang as a white hole is a clear example of this trend.  Until we were uncertain about the size of the universe, there was speculation that the universe was created from a white hole that we could see.  Now we know that the universe is probably infinite, which is why the description of the white hole is almost certainly wrong.

  We know there are black holes - so are there white holes?

 

 

  A white hole is a special kind of individuality: a naked individuality.  Uniqueness like black holes cannot be observed directly, because the speed of escape (the speed at which you need to be free from gravity) is greater than the speed of light, so nothing can escape it.  Individuality is "protected" by an event horizon, the level that separates us from the black hole.  Mathematically, when we have uniformity, space-time breaks down.  To avoid this problem, Horizon Incident was introduced.

  No incident of a naked individual is on the horizon.  According to the basic principles of general relativity, the universe does not allow naked individuality.  This idea is aptly called cosmic censorship hypothesis.  Current theories of numerical simulation and quantum gravity, however, point to the possibility of bare unity.

 

  An interesting phenomenon occurs in describing the properties of black holes with a quantum mechanical approach, which does not involve gravity.  If you look at a black hole back and forth over time, it behaves exactly the same way and remains a black hole.  This is not the most important clash between quantum theories and relativity, but it is nonetheless important.

  The most important obstacle is entropy, measuring system configuration.  According to the laws of thermodynamics, the net entropy of the universe is always increasing.  Entropy may be reduced locally.  For example, a freezer reduces its entropy by converting water into ice, but freezer engines emit a lot of heat, so total entropy is still increasing.

  White holes reduce entropy, which is a major piece of evidence against them.  In this universe, we obey the laws of thermodynamics.  And so far, no confirmed violations have been reported, although we often hear claims of chronic motion machines and abnormalities.

 

•   The future of white holes

  White holes attract a lot of people and they give us a sense of balance.  People will study them and will continue to do so.  In fact, many features of general relativity, such as black holes, were previously considered a theoretical curiosity.  There is no hard evidence that white holes exist, but perhaps in our vast complex universe, there is room for them as well.

  The world's most powerful X-ray laser is now cooler than space.

  Physics

  We may have a new definition of the second by 2030.

 

  This could be a quick way to observe a quantum effect never seen before.

  Physics

  Time travel may be possible, but only with parallel timelines

Quecksilber Planet

 Quecksilber

   Der kleinste und sonnennächste Planet

    Scott Dutfield Beiträge von Daisy Dobrejok von Charles Kyu Choi Veröffentlicht am 31. März 2022

    Merkur umkreist die Sonne schneller als jeder andere Planet im Sonnensystem.

 

 

 

  

  

  

  

    Merkur ist der sonnennächste Planet und der kleinste Planet in unserem Sonnensystem.  Der kleine Planet hat keinen eigenen Mond und dreht sich schneller um die Sonne als jeder andere Planet, daher benannten ihn die Römer nach ihrem sich schnell bewegenden Botengott.

  

    Auch die Sumerer wussten vor mindestens 5.000 Jahren von Merkur.  Laut einer Website, die mit der Mission Messenger (Mercury Surface, Space Environment, Geochemistry and Ranging) der NASA verbunden ist, wurde sie oft mit dem schreibenden Gott Naboo in Verbindung gebracht.  Merkur erhielt auch unterschiedliche Namen, um als Morgenstern und Abendstern zu erscheinen.  Griechische Astronomen wussten jedoch, dass sich die beiden Namen auf denselben Körper beziehen, und Heraklit glaubte etwa 500 v. Chr. Zu Recht, dass sich sowohl Merkur als auch Venus um die Sonne und nicht um die Erde drehten.

    Merkur ist nach der Erde der zweitdichteste Planet mit einem riesigen Metallkern von etwa 2.200 bis 2.400 Meilen (3.600 bis 3.800 km) Breite oder etwa 75 % des Durchmessers des Planeten.  Im Gegensatz dazu ist die äußere Hülle von Merkur nur 500 bis 600 Kilometer dick.  Seine massive Kombination aus Grund- und Strukturelementen, einschließlich einer Fülle flüchtiger Elemente, hat Wissenschaftler seit Jahren verwirrt.

    Verwandte: Woraus besteht Quecksilber?

    Quecksilber: Temperatur, Größe und Oberflächenaktivität

    Da der Planet so nah an der Sonne liegt, kann die Oberflächentemperatur von Merkur 450 Grad Celsius (840 Grad Fahrenheit) erreichen.  Da es jedoch keine echte Atmosphäre mehr auf der Welt gibt, um Wärme einzufangen, können die Nachttemperaturen auf minus 275 Grad Fahrenheit (minus 170 Grad Celsius) fallen, was 1.100 Grad Fahrenheit (600 Grad Celsius) entspricht.  , Das größte im Sonnensystem.

  

  

    - Mit Merkur verbundenes Raumschiff macht Selfie mit Venus im Vorbeiflug (Foto)

    Merkur ist der kleinste Planet - er ist etwas größer als der Erdmond.  Da es keine signifikante Umgebung gibt, um die Auswirkungen zu verhindern, gibt es auf dem Planeten eine Spur von Gruben.  Vor etwa 4 Milliarden Jahren kollidierte ein etwa 100 Kilometer breiter Asteroid mit Merkur, der 1 Billion Megatonnen Bomben wog, und verursachte einen massiven Einschlag mit einer Breite von etwa 960 Meilen (1.550 Kilometer).  Dieser als Calories Basin bekannte Krater könnte den gesamten Bundesstaat Texas verschlingen.  Laut einer Studie aus dem Jahr 2011 könnte ein weiterer wichtiger Effekt darin bestanden haben, einen bizarren Zyklus des Planeten zu erzeugen.

    So nah an der Sonne wie Merkur ist, entdeckte die NASA-Raumsonde Messenger im Jahr 2012 Wassereis in Gruben rund um seinen Nordpol im Jahr 2017, wo Bereiche dauerhaft von der Sonnenhitze beschattet werden könnten.  Der Südpol mag eisige Taschen haben, aber die Umlaufbahn von Messenger erlaubte es den Wissenschaftlern nicht, das Gebiet zu untersuchen.  Kometen oder Meteore könnten Eis in die Gegend gebracht haben, oder Wasserdampf könnte aus dem Inneren des Planeten ausgetreten sein und sich an Polen angesammelt haben.

     35.983.095 Meilen (57.909.175 km).  Zum Vergleich: 0,38 Abstand von der Sonne zur Erde

    Perry Helen (Sonne am nächsten): 28.580.000 Meilen (46.000.000 km).  Zum Vergleich: 0,313 mal die Erde

    Aphel (am weitesten von der Sonne entfernt): 43.380.000 Meilen (69.820.000 km).  Zum Vergleich: 0,459 mal die Erde

    Tageslänge: 58.646 Erdentage

    Farbe: Grau

    Als ob Merkur nicht so klein wäre, ist er laut einem Bericht aus dem Jahr 2016 nicht nur in seiner Vergangenheit geschrumpft, sondern schrumpft auch heute noch.  Dieser kleine Planet besteht aus einer einzigen Kontinentalplatte auf einem kühlenden Eisenkern.  Wenn der Kern abkühlt, verhärtet er sich, wodurch die Größe des Planeten verringert und er schrumpft.  Der Prozess zerdrückte die Oberfläche und schuf lappenförmige Flecken oder Felsen, die Hunderte von Meilen lang und bis zu einer Meile hoch wurden, sowie das „Great Valley“ von Mercury, das etwa 620 Meilen lang und 250 Meilen breit ist Meilen tief.  (1.000 x 400 x 3,2 km) Größer als Arizonas berühmter Grand Canyon und tiefer als das Great Rift Valley in Ostafrika.

    „Das geringe Alter der kleinen Flecken bedeutet, dass Merkur sich tektonisch als aktiver Planet der Erde anschließt, was heute wahrscheinlich neue Defekte verursachen wird, da das Innere von Merkur kälter wird und der Planet schrumpft.“ Tom Waters, leitender Wissenschaftler von Smithsonian am National Luft- und Raumfahrtmuseum.  Washington DC sagte in einer NASA-Erklärung.

    Tatsächlich deutete eine Studie von 2016 über Gesteine ​​auf der Oberfläche von Merkur darauf hin, dass die Erde immer noch durch Erdbeben oder „Merkur-Erdbeben“ vibrieren könnte.  Außerdem hat sich die Oberfläche von Merkur in der Vergangenheit durch vulkanische Aktivität ständig verändert.  Eine andere Studie aus dem Jahr 2016 deutete jedoch darauf hin, dass die Möglichkeit eines Vulkanausbruchs von Merkur vor etwa 3,5 Milliarden Jahren verschwunden war.

    Eine Studie aus dem Jahr 2016 legte nahe, dass die Eigenschaften der Merkuroberfläche im Allgemeinen in zwei Gruppen eingeteilt werden könnten – ein altes Material, das bei hohem Druck an der Kern-Mantel-Grenze schmilzt, und ein neues Material, das Quecksilber nahe der Oberfläche bildet.  Eine weitere Studie aus dem Jahr 2016 ergab, dass die schwarze Farbe der Merkuroberfläche auf Kohlenstoff zurückzuführen ist.  Dieser Kohlenstoff wurde nicht durch Beeinflussung von Kometen angesammelt, wie einige Forscher vermuten, sondern es könnten die Überreste der frühen Kruste des Planeten sein.

    Das Magnetfeld des Merkur

    Die unerwartetste Entdeckung von Mariner 10 war, dass Merkur ein Magnetfeld hat.  Planeten erzeugen theoretisch nur dann Magnetfelder, wenn sie sich schnell drehen und einen geschmolzenen Kern haben.  Aber Merkur benötigt 59 Tage für eine Umlaufbahn und ist so klein – etwa ein Drittel der Größe der Erde –, dass sein Zentrum schon vor langer Zeit abgekühlt sein sollte.

    Christopher Russell, Professor an der University of California, Los Angeles, sagte: „Wir haben herausgefunden, wie die Erde funktioniert, und Merkur ist ein weiterer terrestrischer, felsiger Planet mit einem Eisenkern, also dachten wir, er könnte so aussehen. Wird funktionieren  Stellungnahme der University of California, Los Angeles.

    Ein ungewöhnlicher innerer Teil kann helfen, den Unterschied im Magnetfeld von Merkur im Vergleich zur Erde zu erklären.  Messengers Beobachtungen zeigen, dass das Magnetfeld des Planeten auf seiner Nordhalbkugel etwa dreimal stärker ist als auf der Südhalbkugel.  Russell war Co-Autor eines Modells, das zeigt, dass sich der Eisenkern von Merkur an der äußeren Grenze des Kerns von flüssig zu fest verändert, anstatt im Inneren.

    "Es ist wie ein Schneesturm mit Schnee, der sich über und in der Mitte der Wolken und unter den Wolken bildet", sagte Russell.  „Unsere Untersuchung des Magnetfelds von Merkur zeigt, dass in dieser Flüssigkeit Eis auf Eisen fällt, was das Magnetfeld von Merkur verstärkt.“

    Erdgestützte Radarbeobachtungen im Jahr 2007 entdeckten, dass das Zentrum von Merkur immer noch geschmolzen ist, was helfen könnte, seinen Magnetismus zu erklären, obwohl der Sonnenwind eine Rolle bei der Verringerung des Magnetfelds des Planeten spielen könnte.

    Obwohl das Magnetfeld von Merkur nur 1 % der Stärke der Erde beträgt, ist es sehr aktiv.  Das Magnetfeld des Sonnenwinds – geladene Teilchen, die aus der Sonne kommen – berührt gelegentlich das Feld des Merkur und erzeugt starke Magnetstürme, die das schnelle, warme Plasma des Sonnenwinds an die Oberfläche des Planeten tragen.

    Gibt es eine Merkuratmosphäre?

    Anstelle einer substanziellen Atmosphäre hat Merkur eine extrem dünne „Exposition“, die aus Atomen besteht, die durch Sonneneinstrahlung, Sonnenwind und Mikrometroideffekte von seiner Oberfläche weggeblasen wurden.  Laut NASA bilden diese Partikel einen Schweif und entweichen schnell in den Weltraum.

    Die Atmosphäre von Merkur ist eine "oberflächenverbundene äußere Sphäre, im Wesentlichen ein Raum".  Laut NASA enthält es 42 % Sauerstoff, 29 % Natrium, 22 % Wasserstoff, 6 % Helium, 0,5 % Kalium und potenzielle Mengen an Argon, Kohlendioxid, Wasser, Stickstoff, Xenon, Krypton und Neon.

    Umlaufbahn des Merkur

    Merkur umkreist die Sonne alle 88 Erdentage und bewegt sich im Weltraum mit einer Geschwindigkeit von etwa 112.000 Meilen pro Stunde (180.000 Kilometer pro Stunde) schneller als jeder andere Planet.  Seine elliptische Umlaufbahn ist extrem elliptisch und bewegt Merkur näher an 29 Millionen Meilen (47 Millionen Kilometer) und 43 Millionen Meilen (70 Millionen Kilometer) von der Sonne.  Wenn man auf Merkur stehen könnte, wenn er der Sonne am nächsten ist, würde er erscheinen, als wäre er dreimal größer als die Erde.

    Merkur ist der sonnennächste Planet und seine Atmosphäre ist dünn, es gibt keinen Luftdruck und die Temperatur ist sehr hoch.  Werfen Sie einen Blick ins Innere des Planeten.  (Bildnachweis: Carl Tate, SPACE.com)

    Seltsamerweise, aufgrund der stark elliptischen Umlaufbahn und der Rotation um die Erdachse von Merkur für etwa 59 Tage, wenn die Sonne auf einer verbrannten Oberfläche des Planeten für eine Weile aufgeht, untergeht und nach Westen wandert.  der Himmel.  Bei Sonnenuntergang scheint die Sonne unterzugehen, geht für eine Weile wieder auf und geht dann unter.

    Im Jahr 2016 hatte Merkur einen seltenen Transit, bei dem der Planet das von der Erde aus sichtbare Antlitz der Sonne überquerte.  Die Umlaufbahn von Merkur hat möglicherweise Geheimnisse über seine dünne Atmosphäre aufgedeckt, geholfen, die Welt um andere Sterne zu erforschen, und der NASA geholfen, einige ihrer Instrumente zu verbessern.

    So wie Merkur auf der Erde nur Tage braucht, um die Sonne zu umkreisen, und die Erde 365 Tage braucht, geht Merkur etwa drei- oder viermal im Jahr auf seiner Reise um die Sonne über die Erde hinaus und erzeugt eine optische Täuschung, so die New York Mal.  Merkur scheint sich etwa drei Wochen lang „rückwärts“ am Himmel zu bewegen, während dieser Zeit soll sich Merkur zurückziehen.

    Forschung und Erkundung

    Die erste Raumsonde, die Merkur besuchte, war die Mariner 10, die etwa 45 % der Oberfläche fotografierte und ihr Magnetfeld entdeckte.

    Der Messenger Arbiter der NASA war das zweite Raumschiff, das den Merkur besuchte.  Als es im März 2011 ankam, war es das erste Raumschiff, das den Planeten umkreiste.  Die Mission endete abrupt am 30. April 2015, als das Raumschiff, dem der Treibstoff ausgegangen war, absichtlich auf der Oberfläche des Planeten abstürzte, um die Ergebnisse der Wissenschaftler zu beobachten.

    Im Jahr 2012 entdeckten Wissenschaftler in Marokko eine Gruppe von Meteoren, von denen sie glauben, dass sie vom Planeten Merkur gebildet wurden.  Wenn ja, würde es den felsigen Planeten zu einem Mitglied eines sehr ausgewählten Clubs mit auf der Erde verfügbaren Mustern machen.  Nur der Mond, der Mars und der große Asteroid Vista haben die Felsen in menschlichen Labors bestätigt.

    Im Jahr 2016 veröffentlichten Wissenschaftler das erste globale digitale Höhenmodell von Mercury, das mehr als 10.000 per Messenger aufgenommene Bilder kombinierte, um die Betrachter zu offenen Räumen in der kleinen Welt zu führen.  Das Modell zeigt die höchsten und niedrigsten Punkte des Planeten – der höchste befindet sich direkt südlich des Äquators von Merkur und liegt 2,78 Meilen (4,48 Kilometer) über der durchschnittlichen Höhe des Planeten, während der niedrigste Punkt darin besteht, im Rachmaninoff-Becken zu leben, das der Verdächtige ist Heimat.  Die jüngste vulkanische Aktivität auf der Erde und 3,34 Meilen (5,38 Kilometer) unter dem Durchschnitt der Erdoberfläche.

    2018 wurde ein neuer Mercury Explorer auf den Markt gebracht.  Die Mission BP Colombo, die gemeinsam von europäischen und japanischen Raumfahrtagenturen betrieben wird, besteht aus zwei Raumfahrzeugen – dem Mercury Planetary Orbiter und dem Mercury Magnetaspheric Orbiter – die nach einer langen Reise zum Merkur helfen werden, die kleine Welt besser zu verstehen getrennt für  Ein Teil der Mission der Europäischen Weltraumorganisation wird sich auf die Untersuchung der Oberfläche von Merkur konzentrieren, während sich ein Teil der Japan Aerospace Exploration Agency auf die bizarre magnetische Sphäre des Planeten konzentrieren wird.

    Im Jahr 2021 bekam Bepi Columbo seinen ersten Blick auf Merkur während des Gravity Assist Fly By.  Bepi Columbo soll Ende 2025 am Merkur ankommen und laut ESA während seiner einjährigen nominalen Mission mit der Möglichkeit einer Verlängerung um ein Jahr Daten sammeln.

Mercury Planet

 Mercury

  The smallest and closest planet to the sun

   Scott Dutfield Contributions by Daisy Dobrejok by Charles Kyu Choi Posted March 31, 2022

   Mercury orbits the Sun faster than any other planet in the solar system.

 Marcury

   Mercury is the closest planet to the Sun and the smallest planet in our solar system.  The small planet has no moon of its own and revolves around the sun faster than any other planet, so the Romans named it after their fast-moving messenger god.

  

   The Sumerians also knew about Mercury at least 5,000 years ago.  According to a site linked to NASA's Messenger (Mercury Surface, Space Environment, Geochemistry and Ranging) mission, it was often associated with the writing god Naboo.  Mercury was also given different names to appear as the morning star and the evening star.  However, Greek astronomers knew that the two names refer to the same body, and Heraclitus, about 500 BC, correctly thought that both Mercury and Venus revolved around the Sun, not the Earth.

   Mercury is the second densest planet after Earth, with a huge metal core about 2,200 to 2,400 miles (3,600 to 3,800 km) wide, or about 75% of the planet's diameter.  In contrast, Mercury's outer shell is only 300 to 400 miles (500 to 600 kilometers) thick.  Its massive combination of basic and structural elements, including a plethora of volatile elements, has puzzled scientists for years.

   Related: What is Mercury Made of?

   Mercury: Temperature, size and surface activity

   Because the planet is so close to the Sun, Mercury's surface temperature can reach 840 degrees Fahrenheit (450 degrees Celsius).  However, since there is no more real atmosphere in the world to trap any heat, nighttime temperatures can drop to minus 275 degrees Fahrenheit (minus 170 degrees Celsius), which is 1,100 degrees Fahrenheit (600).  Degrees Celsius).  , The largest in the solar system.

  

  

   - Mercury-linked spacecraft takes selfie with Venus on fly-by (photo)

   Mercury is the smallest planet - it is slightly larger than the Earth's moon.  Since there is no significant environment to prevent the effects, there is a mark of pits on the planet.  About 4 billion years ago, an asteroid about 60 miles (100 kilometers) wide collided with Mercury, which weighed 1 trillion megatons of bombs, producing a massive impact about 960 miles (1,550 kilometers) wide.  Known as the Calories Basin, this crater could engulf the entire state of Texas.  According to a 2011 study, another major effect may have been to create a bizarre cycle of the planet.

   As close to the sun as Mercury is, in 2012, NASA's Messenger spacecraft discovered water ice in pits around its North Pole in 2017, where areas could be permanently shaded by the sun's heat.  The South Pole may have icy pockets, but Messenger's orbit did not allow scientists to investigate the area.  Comets or meteors may have brought ice to the area, or water vapor may have come out of the interior of the planet and accumulated on poles.

    35,983,095 miles (57,909,175 km).  By comparison: 0.38 Distance from the sun to the earth

   Perry Helen (closest view to the sun): 28,580,000 miles (46,000,000 km).  By comparison: 0.313 times the Earth

   Aphelion (farthest distance from the sun): 43,380,000 miles (69,820,000 km).  By comparison: 0.459 times the Earth

   Length of day: 58.646 Earth days

   Color: Gray

   As if Mercury is not so small, it has not only shrunk in its past but is shrinking even today, according to a 2016 report.  This small planet is made up of a single continental plate on a cooling iron core.  As the core cools, it hardens, reducing the size of the planet and shrinking it.  The process crushed the surface, creating lob-shaped spots or rocks that grew hundreds of miles long and up to a mile high, as well as the "Great Valley" of Mercury, which is about 620 miles long and 250 miles wide.  And two miles deep.  (1,000 x 400 x 3.2 km) Larger than Arizona's famous Grand Canyon and deeper than the Great Rift Valley in East Africa.

   "The small age of the small spots means that Mercury joins the Earth tectonically as an active planet, which is likely to cause new defects today as Mercury's interior is getting colder and the planet is shrinking.  "Tom Waters, Smithsonian's senior scientist at the National Air and Space Museum.  Washington DC said in a NASA statement.

   In fact, a 2016 study of rocks on the surface of Mercury suggested that the Earth could still vibrate with earthquakes, or "Mercury Earthquakes."  Also, in the past, Mercury's surface has been constantly changing from volcanic activity.  However, another 2016 study suggested that the possibility of Mercury's volcanic eruption had disappeared about 3.5 billion years ago.

   A 2016 study suggested that the properties of Mercury's surface could generally be divided into two groups - an old material that melts at high pressure on the core mantle boundary, and a new material that mercury  Forms close to the surface.  Another 2016 study found that the black color of Mercury's surface is due to carbon.  This carbon was not accumulated by influencing comets, as some researchers suspect - instead, it could be the remnants of the planet's early crust.

   Mercury's magnetic field

   The most unexpected discovery by Mariner 10 was that Mercury has a magnetic field.  Planets theoretically create magnetic fields only when they rotate rapidly and have a molten core.  But Mercury takes 59 days to orbit and is so small - about one-third the size of Earth - that its center should have cooled long ago.

   Christopher Russell, a professor at the University of California, Los Angeles, said: "We figured out how the Earth works, and Mercury is another terrestrial, rocky planet with an iron core, so we thought it might look like this.  Will work  Statement from the University of California, Los Angeles.

   An unusual inner part can help explain the difference in Mercury's magnetic field compared to Earth.  Messenger's observations show that the planet's magnetic field is about three times stronger in its northern hemisphere than in the south.  Russell co-authored a model that shows that Mercury's iron core is changing from liquid to solid at the outer boundary of the core, rather than internally.

   "It's like a blizzard with snow forming above and in the middle of the clouds, and below the clouds," Russell said.  "Our study of Mercury's magnetic field shows that ice is falling on iron in this fluid, which is strengthening Mercury's magnetic field."

   Earth-based radar observations in 2007 discovered that Mercury's center is still molten, which could help explain its magnetism, although solar wind could play a role in reducing the planet's magnetic field.

   Although Mercury's magnetic field is only 1% of the Earth's strength, it is very active.  The magnetic field in the solar wind - charged particles coming out of the sun - occasionally touches the field of Mercury, creating powerful magnetic storms that carry the fast, warm plasma of the solar wind to the planet's surface.

   Is there an atmosphere of Mercury?

   Instead of a substantial atmosphere, Mercury has an extremely thin "exposure" made up of atoms that have been blown from its surface by solar radiation, solar wind and micrometroid effects.  According to NASA, these particles form a tail and quickly escape into space.

   Mercury's atmosphere is a "surface-connected outer sphere, essentially a space."  According to NASA, it contains 42% oxygen, 29% sodium, 22% hydrogen, 6% helium, 0.5% potassium, and contains potential amounts of argon, carbon dioxide, water, nitrogen, xenon, krypton and neon.

   Mercury's orbit

   Mercury orbits the Sun every 88 Earth days, traveling in space at a speed of about 112,000 miles per hour (180,000 kilometers per hour), faster than any other planet.  Its elliptical orbit is extremely elliptical, moving Mercury closer to 29 million miles (47 million kilometers) and 43 million miles (70 million kilometers) from the Sun.  If one could stand on Mercury when it is closest to the sun, it would appear to be three times larger than the Earth.

   Mercury is the closest planet to the Sun and its atmosphere is thin, there is no air pressure and the temperature is very high.  Take a look inside the planet.  (Image credit: Carl Tate, SPACE.com)

   Oddly enough, due to Mercury's highly elliptical orbit and rotation on Earth's axis for 59 days or so, when on a scorched surface of the planet, the sun rises for a while, sets and travels west.  Appears to rise again before.  the sky.  At sunset, the sun appears to set, rises again for a while, and then sets.

   In 2016, Mercury had a rare transit, where the planet crossed the face of the sun visible from Earth.  Mercury's orbit may have uncovered secrets about its thin atmosphere, helped explore the world around other stars, and helped NASA improve some of its instruments.

   Just as it takes Mercury only days on Earth to orbit the Sun and Earth takes 365 days, about three or four times a year Mercury goes beyond the Earth during its journey around the Sun and creates an optical illusion.  Happens, according to the New York Times.  Mercury appears to move "backwards" in the sky for about three weeks, during which time Mercury is said to retreat.

   Research and exploration

   The first spacecraft to visit Mercury was the Mariner 10, which photographed about 45% of the surface and detected its magnetic field.

   NASA's Messenger Arbiter was the second spacecraft to visit Mercury.  When it arrived in March 2011, it became the first spacecraft to orbit the planet.  The mission ended abruptly on April 30, 2015, when the spacecraft, which had run out of fuel, deliberately crashed on the surface of the planet to observe the results of scientists.

   In 2012, scientists discovered a cluster of meteors in Morocco that they believe may have been formed from the planet Mercury.  If so, it would make the rocky planet a member of a very select club with patterns available on Earth.  Only the moon, Mars and the large asteroid Vista have confirmed the rocks in human laboratories.

   In 2016, scientists released Mercury's first global digital elevation model, combining more than 10,000 images captured via messenger to take viewers to open spaces in the small world.  The model reveals the planet's highest and lowest points - the highest is found just south of Mercury's equator, sitting 2.78 miles (4.48 kilometers) above the planet's average altitude, while the lowest  The point is to live in the Rachmaninoff Basin, which is the suspect's home.  The most recent volcanic activity on Earth, and 3.34 miles (5.38 kilometers) below average of the Earth's surface.

   In 2018, a new Mercury Explorer was launched.  The BP Colombo mission, which is jointly operated by European and Japanese space agencies, consists of two spacecraft - the Mercury Planetary Orbiter and the Mercury Magnetaspheric Orbiter - which, after a long journey to Mercury, help to better understand the small world.  Will be separated for  Part of the European Space Agency's mission will focus on studying the surface of Mercury, while part of the Japan Aerospace Exploration Agency will focus on the planet's bizarre magnetic sphere.

   In 2021, Bepi Columbo got his first glimpse of Mercury during the Gravity Assist Fly By.  Bepi Columbo is due to arrive at Mercury at the end of 2025, and will collect data during its one-year nominal mission with the possibility of a one-year extension, according to ESA.