What are the seven unsolved mysteries in the world?

It is one of the top ten unsolved mysteries in the world, namely: the mystery of Korean passenger plane crash, the mystery of Kennedy's death, the mystery of Loch Ness monster, the mystery of Egyptian ancient tomb, the mystery of UFO, the mystery of spontaneous human combustion, the mystery of miracle, the mystery of ghost, the mystery of shroud and the mystery of Titanic sinking.

1, the mystery of the Korean passenger plane crash

A Boeing 747 passenger plane of Korean Air flying from Seoul to Guam crashed near Guam International Airport at 65438 am local time1August 6, 997, killing more than 200 people.

It rained heavily and the weather was bad. When the plane flew about 5 kilometers near Guam International Airport, it suddenly disappeared from the radar screen and lost contact with the ground control tower. According to witnesses, the plane crashed into a fire group in the dense forest near the airport and heard the explosion.

After 17 hours of intense work, American rescuers found the remains of about 70 victims from the wreckage of the Korean passenger plane that crashed in Guam and the accident site; Korean Air said that 29 of the 254 people on board were still alive, including four crew members. The National Transportation Security Administration sent a special investigation team to the scene to investigate the cause of the accident. Two "black boxes" on the crashed passenger plane have also been found and sent to Washington for analysis.

The heads of South Korea and the United States have different opinions on the cause of the Korean Air plane crash.

The South Korean side stressed that the navigation device at Guam Airport was in a state of failure at that time, and the personnel on duty at the airport control tower were not FAA employees. Coupled with the abnormal weather at that time, it eventually led to a plane crash.

The United States believes that the failure of the navigator should not affect the normal landing of the plane, and asks why the South Korean side changed the Airbus flight on this route to a Boeing 747 charter that has been flying 13 years. Boeing Aircraft Manufacturing Company said that the accident rate of its products was only 1.78 parts per million.

1August 1997 10, American federal investigators said that the investigation found that the computer software of the radar system of Guam International Airport failed when the Korean passenger plane crashed, and it failed to give an alarm in time when the plane approached the ground.

Under normal circumstances, when the plane flies near the ground, the airport radar system will give an alarm, and the ground commander will remind the pilot in time. However, the investigation found that due to software problems, the radar did not find the Korean plane close to the ground, so the pilot did not receive a warning from the ground control tower before the plane crashed.

National transportation safety board officials in charge of investigating the crash believe that the problem of this radar system cannot be said to be the cause of the crash, but on the one hand, there is a lack of preventive measures. There may be many factors in a plane crash.

In addition, before the plane accident, the navigation system that guided the plane to land at Guam airport stopped for a long time; When the plane approached Guam airport, it was raining heavily in Guam, which were all possible factors for investigators to study the plane accident.

2. Kennedy's death

Since the assassination of President 1865 Lincoln, the American president has been assassinated constantly, and the power halo on his head has almost become the target in the eyes of some "lunatics". However, the background of the Kennedy shooting is particularly confusing.

What puzzled the American public was that the murderer Lee Harvey Oswald was shot under the eyes of federal agents and kept silent in front of photographers. jack ruby, who shot and killed people, died mysteriously soon.

Around this case, American public opinion has put forward various assumptions. Some people think that this is a coup plot planned by the CIA and the military hawks; Others believe that the assassination was done by the "mafia".

What's more, some people associate Kennedy's death with Marilyn Monroe's suicide. In order to find out the truth of the case, the US government set up a special investigation committee to investigate the whole story of the case.

However, after several years of investigation, the investigation Committee finally concluded that Kennedy's shooting was Oswald's personal behavior and had no deeper political background.

Once the conclusion was published, public opinion was in an uproar. Some non-governmental organizations have vowed to get to the bottom of this case, but today, this case is still "fair and just, and the old woman says that the old woman is reasonable."

With the passage of time, many parties have passed away, and the rest are in their twilight years. It seems that they want to take this mystery to the grave.

Gunfire on the streets of Dallas may become an eternal mystery in American political history.

What happened:1963165438+1On the morning of October 22nd, American President John F. Kennedy and his wife arrived in Dallas, Texas, and took a convertible to downtown. Mr. and Mrs. Kennedy (sitting in the back row) smiled happily at the welcoming crowd on the roadside. They knew nothing about the coming of death.

At noon 1: 30, a shooting incident occurred when the presidential motorcade passed an intersection in the city center. Before the presidential bodyguard could react, Kennedy was leaning on his wife, and Governor Connery was seriously injured.

After the news of Kennedy's assassination was announced, Johnson immediately escorted Kennedy's coffin back to Washington. At 3: 38 pm, Johnson was sworn in as the president of the United States on the presidential plane of Air Force One returning to Washington, and Mrs. Kennedy stood beside him in shock.

1963165438+1On the morning of October 23rd, Kennedy's body was transferred from Bethesda Naval Hospital to the White House. 165438+1On October 25th, the US government held a funeral for Kennedy.

Hours after Kennedy's assassination, Dallas police arrested Lee Harvey Oswald, the murderer, in a cinema. 1963165438+1On October 24th, jack ruby, the owner of a Dallas nightclub, pulled out and shot Oswald in front of dozens of federal agents and policemen, and Ruby himself eventually died in prison.

3. Mystery of Loch Ness Monster

The Loch Ness Monster is one of the most mysterious and fascinating mysteries on earth.

Loch Ness is located in the Grand Canyon in the northern Scottish Plateau of England. It is 39 kilometers long and 2.4 kilometers wide. It's small, but it's deep. The average depth is 200 meters and the deepest point is 293 meters. The lake is not frozen all year round, with steep banks and dense forests. At the end of Hubei, there is a river connected with the North Sea.

The earliest record of water monsters can be traced back to 565 AD, when the Irish missionary St. Columbus and his servants were swimming in the lake. The monster suddenly attacked the servant. Thanks to the priest's timely rescue, the servant swam back to the shore and saved his life. In the next ten centuries, there were more than ten thousand pieces of news about the appearance of water monsters. But people didn't believe it at that time, thinking it was just an ancient legend or nonsense.

It was not until April 1934 that London doctor Wilson passed by Loch Ness and happened to find the water monster swimming in the lake. Wilson quickly took a picture of the monster with his camera. Although the picture is not very clear, it clearly shows the characteristics of the monster: long neck and flat head, which looks like a giant reptile plesiosaur that died out more than 70 million years ago.

Plesiosaur is a huge aquatic reptile, which lived from/kloc-0 to 70 million years ago and was also a distant relative of dinosaurs. It has a slender neck, an oval body and a long tail. It has sharp teeth in its mouth and feeds on fish. It is the overlord of the Mesozoic ocean.

If the Loch Ness monster is really a plesiosaur, it is undoubtedly an extremely precious prehistoric animal, and this discovery will also play an important role in zoology.

So after this photo was published, it quickly caused a worldwide sensation. With the "dinosaur fever" in the 20th century, people began to associate water monsters with plesiosaurs and paid great attention to them.

1960 On April 23rd, British aviation engineer Ding Side filmed more than 50 feet of film in Loch Ness. Although the film is rough, you can still clearly see a giant creature with a long black neck swimming across Loch Ness.

Some scientists who are negative about this changed their views after watching this film. The Royal Air Force and the Air Reconnaissance Intelligence Center analyzed Tinsted's film and concluded that "that thing is probably a creature."

In 1970s, scientists began to search for water monsters on a large scale with the help of advanced instruments and equipment. In August, 1972, Boston, USA, some photos were taken in Loch Ness with some underwater cameras and sonar. One of the photos showed a two-meter-long rhombic flipper attached to a huge organism. At the same time, sonar also found that there were huge objects moving in the lake.

1June, 975, the hospital sent an investigation team to Loch Ness and took more photos. Two of them are particularly interesting: one shows a huge body with a long neck, and it can also show two short flippers of the object.

It is estimated from the photo that the creature is 6.5 meters long, and its forehead is 2.7 meters long, which really looks like plesiosaur. Another photo captured the monster's head. After computer magnification, you can see the short tentacles and wide mouth on the monster's head. The conclusion is that "there are indeed large unknown aquatic animals in Loch Ness."

The discovery of 1972 and 1975 was a sensation, which made people feel that it is urgent to solve the mystery of the water monster or capture the live plesiosaur. Since then, Britain and the United States have jointly organized a large-scale investigation team, sent 24 investigation boats in a long snake array, and dragged fishing nets across Loch Ness in an attempt to catch the monster at one fell swoop. But unfortunately, nothing was found except recording some sonar data.

Because chasing water monsters failed, negative views became popular again. A retired electronic engineer wrote in the British magazine New Scientist that the Loch Ness monster is not an animal, but an ancient pine tree.

He said that there were many pine trees near Loch Ness more than 10,000 years ago. At the end of the ice age, the lake rose and many pine trees sank to the bottom. Because of the pressure of water, the resin in the trunk was discharged to the surface, but the gas generated from it could not be discharged.

So these pine trees sometimes float to the surface, but release some gas on the surface and then sink to the bottom. To people far away, it looks like the head, neck and body of a monster. "

But this view cannot convince those who claim to have witnessed the monster with their own eyes. Moreover, in the late 1970s, some people took several photos of water monsters.

So, why can't people catch monsters so far?

This should start with the special geological structure of Nice. It turns out that Loch Ness contains a lot of peat, which makes the lake very turbid and the visibility in the water is less than three or four feet. Moreover, the topography of the lake bottom is complex, and there are labyrinthine deep valleys and gullies everywhere.

Even giant aquatic animals can easily hide quietly and avoid the detection of electronic instruments. There are many fish in the lake, so monsters don't have to go out for food, and the lake is connected with the sea, so it is easy for monsters to get in and out. Therefore, it is difficult to catch monsters.

But as long as the monster is not really found, the mystery is not solved. Until now, no one can jump to conclusions about the existence of water monsters.

In this regard, the British writer Chester said: "Many suspects have less criminal evidence than the Loch Ness monster, so they were hanged." This is a humorous and ingenious evaluation of the mystery of ancient and modern water monsters.

4. Mystery of Egyptian Tomb

John tyler, an Englishman, is an amateur of astronomy and mathematics, and also a lover of pyramids. He made many amazing discoveries about the pyramids. He studied the pyramids according to the data provided in the literature.

After calculation, he found that the Great Pyramid of Khufu contains many mathematical principles. First, he noticed that the base angle of the Great Pyramid of Khufu was 5 1' instead of 60'. It is found that the area of each wall triangle is equal to the square of its height.

In addition, the ratio of tower height to tower foundation perimeter is the ratio of radius of the earth to perimeter, so pi can be obtained by dividing the tower height by twice the bottom edge. Taylor believes that this ratio is by no means accidental.

He proved that the ancient Egyptians knew that the earth was round, and they also knew the ratio of the radius to the circumference of the earth. Taylor's idea was supported by British mathematician Professor Charles Peter Smith.

1864, Smith visited pyramid of khufu on the spot. Claimed that he had discovered more secrets of the Great Pyramid of Khufu. For example, the tower height multiplied by the ninth power of 10 is equal to the distance from the earth to the sun; The perimeter of the tower foundation is calculated according to a certain unit, that is, the number of days in a year, and so on.

In other words, the Great Pyramid contains not only units of length. It also contains units for calculating time. Smith's field trip was praised by the Royal Society, and he was awarded the gold medal of the Society.

Later, another Englishman, Ferrand Qi Petrie, took his father's measuring instruments carefully improved with 20 years of painstaking efforts to survey the Great Pyramid. In surveying and mapping, he was surprised to find that the straight line and angle error of the Great Pyramid was almost zero, and the deviation was less than 0.25 inch in the length of 350 feet.

However, the book written by Petrie after the investigation denies Smith's statement that the circumference of the tower foundation is equal to the number of days in a year. Petrie's book caused an uproar among scientists. How much knowledge and wisdom the ancient Egyptians condensed in the pyramids is still an unsolved mystery.

5, UFO mystery

The National Defense Intelligence Agency is a secret intelligence agency within the Pentagon, which is responsible for coordinating the intelligence activities of the US armed forces. The Defense Intelligence Agency works not only for the Pentagon, but also for the Central Intelligence Agency.

At the end of 1970s, the American UFO research organization-"Citizens Against Covering up the UFO Truth" submitted an application for access to archives to the National Defense Intelligence Agency according to the Freedom of Information Act.

They hope to get documents about the UFO incident from the National Defense Intelligence Agency. At first, like other American government agencies, the Defense Intelligence Agency denied any connection with UFO research.

However, in the end, it had to release three compelling UFO files.

The contents of three secret documents released by the US Defense Intelligence Agency for the first time are typical blueprints of American Steven Allan Spielberg movies. One of the three files involves a report that the Iranian Air Force found a UFO on September 1976.

1) 1976 September19 At about 12: 30 in the evening, the Iranian National Air Force General Command received four calls from Michelland residents near the capital Tehran. Residents said on the phone that they had found a very strange flying object in the local sky.

Some people say that those UFOs are similar to birds in shape. Some people describe them as brightly lit helicopters. He explained to the residents that the so-called strange flying objects might be stars.

After talking on the phone with the air force airport in Merabad, he decided to see those things in person immediately.

2) 1976 September 19 morning 1: 30 or so, this f? The interceptor is located in the air about 40 nautical miles north of Tehran. Because the light emitted by this UFO is very strong, it can be seen clearly from 70 nautical miles away.

When the plane approached the UFO for 20 nautical miles, the telegraph system and monitoring equipment on the plane suddenly failed. At this time, the pilot had to return to Shalozi base.

As soon as the pilot put down the nose of the plane, the functions of the monitoring equipment and signal system in the cabin of the plane were not only restored at once, but also the danger of sudden engine flameout just now disappeared.

1: 40, the second fighter plane takes off. When the plane was in the air 27 nautical miles north of Tehran at an altitude of 150 nautical miles, UFOs began to appear on the radar screen of the plane.

3) This UFO is about the size of a Boeing 707 (tanker). Because the light emitted by this UFO is very strong, it is difficult to make an accurate judgment on its volume.

When a UFO flies vertically to the ground, it will emit strong beams of blue, green, red and orange. Because the wave frequencies of these beams look very high, they can all be observed at the same time.

When two interceptors tracked the UFO into the air south of Tehran, another shiny UFO suddenly flew out of its body. This flying body that just flew out is about half or even a third of the size of the full moon in the sky.

Then, this little UFO, which just left the mother, flew at a very high speed to two F? The interceptor rushed over. One of the pilots tried to launch a Type 9 air interception rocket at him, but at this time, the control system of rocket launch in the cabin failed and there was no signal on the intercom.

Just then, the pilot quickly leaned back and pulled the plane into a high arc, trying to get rid of the UFO. Then he went diving again.

However, the original UFO followed, keeping a distance of three or four nautical miles from it for a period of time.

Just as the pilot tried to get rid of the tracking, the second small UFO separated from the mother UFO was always in the arc circle drawn by the plane in the air. After a while, the flying saucer flew to the mother and became one.

4) Not long after the small UFO merged with the mother, another UFO suddenly flew from the other side of the original mother UFO, and it flew vertically to the ground.

5) At dawn the next day, a helicopter carried the two interceptor pilots and took them to the place where the small UFO was likely to land last night.

There, they didn't find anything related to it except a dry river bed suspected to be the landing point of UFOs. When the team came to the west side, they got valuable information unexpectedly.

There lived a family. People in this family said that they heard a loud noise outside in the middle of last night, and with this loud noise, a lightning-like light was emitted outside the house.

So people began to test the area and the two planes to see if they had nuclear radiation. If the results come out in the future, we (in this case, the National Defense Intelligence Agency) will report it quickly.

At the beginning of this document, a large list of American government and military institutions is listed. It is not difficult for people to see that this UFO incident in Iran has attracted great attention from the top of the US government.

6. The Mystery of spontaneous human combustion

The so-called spontaneous human combustion phenomenon refers to the spontaneous fire of human body without contact with external kindling. This incredible phenomenon was first seen in the medical reports of17th century. By the 20th century, there were more than 200 incidents.

/kloc-at the beginning of the 0/9th century, some people thought that this kind of disaster only befell those women who drank too much, were obese and lived alone. However, many subsequent cases proved that the number of victims was roughly equal to that of men and women, ranging from infants to 1 14 years old, and there were many cases where there was no fire source.

Bartolin recorded in 1673 one of the earliest events with sufficient evidence to prove human spontaneous combustion. It was a poor woman in Paris who went home to sleep one night and died of spontaneous combustion at night.

The next morning, people found that only her head and fingers were left, and the rest of her body was burned to ashes. According to this spontaneous combustion event, Frenchman Rael published the first paper on spontaneous human combustion in 1800.

In a short time, the spontaneous human combustion phenomenon caused a sensation in France, Britain and Italy. More influential than that, 1976, 1976 On February 27th, a Lagos family of seven was reported by Arria Herald, and six members were burned to death, which became the most difficult mystery to solve at that time.

The report said: "The on-site investigation shows that all the objects in the wooden house are intact, and even the bedding is neatly placed on the bed, but judging from the severity of the burning, everything in the room should be gone."

Although many police, fire brigade, arson experts and pathologists have presented a lot of evidence, there is no reasonable physiological argument to prove why the human body spontaneously burns or even turns to ashes.

As a rule, human organs, tissues and bones can only be burned to ashes in a high-pressure crematorium at 900- 1000 degrees Celsius. It is really incredible to burn by yourself.

In addition, some people put forward other spontaneous combustion factors, such as meteor, lightning, atomic explosion in the body, laser beam, geomagnetic energy and so on. But under what conditions can these play a role and form spontaneous combustion, there is no explanation. In a word, the spontaneous human combustion phenomenon remains a mystery.

7. Mystery of Miracles

Crop circles refer to geometric patterns produced when crops in wheat fields or other fields are flattened by some unknown force (mostly man-made). This mysterious phenomenon is sometimes called "crop formation".

The "smooth collapse" of crops in the strange circle and the anxious traces of plant stems are not achieved by artificial flattening. Some MIT students tried to replicate this phenomenon in reverse with homemade equipment, but it still failed. So far, there is still no explanation of what equipment or practice can achieve this phenomenon.

The emergence of crop circles makes people have various views on the theory supporting the existence of aliens. The 2002 movie logo? [2]? Is the theme that connects aliens and crop circles.

8. Mysterious ghosts

In May 2004, a group of urban exploration fans sneaked into an abandoned naval dock in South Plymouth, England. An old lampshade, a dirty mattress, an overturned TV set and even some collapsed wooden beams in the cabin are all the results of their exploration. Suddenly someone found a windfall: he heard a woman crying from the depths of the cabin.

9. Mysterious shroud

In Turin, a city in the northwest of Italy, the chapel attached to John's Cathedral has kept a treasure of the town hall since16th century, which has been worshipped by Christians for generations. This is the sacred object known as Christianity, which is the world-famous "Shroud of Turin", also known as "Shroud of Jesus".

At the beginning of the first century, Jesus was born in Bethlehem and his mother was the Virgin Mary. Jesus is the only son of God. At the age of 30, he began to preach in Palestine and gradually became the spiritual and moral leader of the local people.

What Jesus and his disciples did aroused the hatred of the Jews. Because of the traitor's betrayal, Jesus was arrested by Pilate, the governor of the Roman Empire in Judea, and was sentenced to be crucified.

According to the New Testament, after Jesus was crucified, the disciples fled in all directions, and no one came to collect the body. Fortunately, "there was a man named Yue Se, an upright, kind and just man ... who went to Pilate and asked for the body of Jesus.

And he took it down, wrapped it in fine linen, and laid it in a tomb hewn out of stone. "Unexpectedly, on the third day, Jesus miraculously resurrected, the tomb opened and disappeared.

When his disciple Peter heard this, he hurriedly "ran to the tomb, looked down and saw the linen cloth alone, and went back, amazed at what had happened." This is the origin of Easter in the west.

For the whereabouts of this linen cloth, the Bible does not explain it again. Until 1353, the shroud was in the hands of Count Chanu, and was publicly exhibited in Li Lei Church in his territory on 1357.

1432, the shroud once again fell into the hands of the Duke of Safwa. Not long after, the shroud caught fire in the duke's house, but fortunately it was only slightly damaged.

After that, the shroud was moved to the residence of the Duke of Turin Cathedral in Italy. 1983, this cloth was solemnly preserved in a silver box and enshrined on the altar of the Catholic Church in Turin.

The shroud of Jesus is 4.35 meters long and 1.09 meters wide, and there is a blood image of a man who was whipped and crucified on it. Image height 1.8 meters, long hair hanging to the shoulders, hands crossed on the abdomen. There are clear red blood spots on the head, hands, ribs and feet, which are exactly the same as when Jesus was crucified in the Bible.

Is the shroud really a relic of the crucifixion of Jesus Christ? For hundreds of years, historians, religionists and scientists have been arguing about its authenticity.

Due to the pressure from all sides and the curious nature of human beings, 1986 held a technical seminar in Turin, Italy on September 29th, presided over by the President of the Papal Academy of Sciences. The Archbishop of Turin, representatives of the Pontifical Academy of Sciences and 22 scientists from France, Switzerland and Britain attended the meeting.

The meeting reached an agreement, agreeing to cut the sample into the size of stamps and use the world-advanced ultra-high sensitivity accelerator mass spectrometer (AMS) for determination.

On April 2 1988 and 2 1 day, the archbishop, the archaeological authority of the British Museum, came to Turin Cathedral and cut off the cloth strips of the legendary crucifix, which were 7 cm long and 0 cm wide, and divided them into three small pieces. Without the other party's knowledge, they were sent to the AMS dating laboratory of the University of Arizona, Oxford University and Swiss Federal Institute of Technology in Zurich for testing.

Experiments show that the three laboratories have achieved excellent consistency, and the difference of each result is within 120. The possibility that the shroud was made between 1260 and 1380 is 95%, and the certainty of 100% indicates that it will never be earlier than 1200.

1988 10 13 The Archbishop of Turin and Cardinal Ballestero officially announced at the press conference that this shroud of Jesus Christ, which has been regarded as sacred by Christians for centuries, was not used during the crucifixion of Jesus, but a fake woven in the Middle Ages. At this time, the so-called shroud of Jesus appeared.

However, it happened repeatedly afterwards. It is said that some scientists re-sampled and analyzed the shroud by "micro-chemical method", and were surprised to find that in the experiment of 1998, the test samples of three laboratories were only one piece of the shroud in Turin, and the new identification thought that the main part was much earlier than this piece.

This patch was patched up after being damaged by fire, because it was patched up carefully and was very old, and it was just cut to the patch before the test. Tests show that the main part of the shroud is much earlier than the patch.

10, the sinking mystery of Titanic

191April 12 is a tragic day-on this day, the British luxury passenger ship Titanic unfortunately sank on its maiden voyage to North America. This shipwreck caused 1523 people to die in the belly of fish, which was the biggest disaster in the history of human navigation and shocked the world. For many years, the real cause of the sinking of Titanic has been the focus of people's exploration.

1985, the wreck of the sunken Titanic was found in the waters near Newfoundland. Then, explorers used various advanced technologies and even dived into the cold and dark deep sea to try to reveal the reasons for the sinking of the Titanic.

However, people who dive into the water can only see the appearance of the Titanic, but they can't explore the "trauma" caused by the iceberg impact, because the cracks on the ship have been deeply buried by thick sediment. This situation was not changed until 1996.

In August of that year, an international expedition team composed of diving experts, shipbuilding experts and oceanographers from many countries conducted in-depth field exploration. If you don't explore, you will find it amazing.

A brand-new statement broke the widely accepted plot of the famous movie Titanic. In this film, the 275-meter-long luxury passenger ship was hit by an iceberg drifting head-on. After a 92-meter-long crack appeared, the cabin flooded and soon sank in the waters near Newfoundland.

However, the results of this exploration show that the Titanic was not sunk by a big iceberg drifting head-on. Their sonic detector found the ship's wound. The "wound" is not 92 meters long, but there are six small "wounds" with a total damage area of only 3.7 ㎡-4 ㎡.

In order to enhance the credibility of this statement, the researchers used those data to simulate the process of the disaster on the computer, and the conclusion was affirmative: at that time, the six flooded cabins were not evenly flooded, some with large water inflow and some with small water inflow, which indicated that the holes that were knocked open were large and small.

In fact, Edward Wilding, the designer of the ship, had put forward this situation at that time, but this very important testimony was ignored intentionally or unintentionally. Because it was hard for people at that time to accept the fact that such a good ship sank after six small holes!

The "injury" of the ship is also closely related to the hull steel plate. 1992, Dr. Joseph macneice, a Russian scientist, wrote in an article: "The brittle hull steel plate may make people feel that it can be broken into pieces under impact, which is actually a hole opened from the side of the ship."

The research results of American scientists on hull steel plates also confirm the above views. At that time, there were many sulfur inclusions in the steel plate, which reduced the hardness of the steel plate, which was also the reason why the hull steel plate was very brittle.

Therefore, experts generally believe that iceberg impact may not be the fatal cause; The sudden impact of the iceberg, the speed of the ship is slightly faster and the steel plate is fragile, which is the real reason for this tragedy.

Everything sounds so well-founded, but like all events that don't know the truth, the mystery of Titanic is far from over.

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