Since the beginning of the 21st century, what have been the unsolved mysteries that have been unsolv

When I was a child, I especially liked to go to the library to find those unsolved mysteries to read, what "China's Unsolved Mysteries", "The World's Unsolved Mysteries", "Unsolved Mysteries" and other kinds of unsolved mysteries, and these so-called unsolved mysteries can be said to know quite a lot, and in recent years, there are indeed a few unsolved mysteries that are no longer unsolved mysteries.

One: The unsolved mystery of gravitational waves.

The question of whether gravitational waves exist has always been an unsolved mystery, which was put forward by Albert Einstein in the last century and has not been answered, because human beings have never been able to discover gravitational waves, so it is impossible to determine whether gravitational waves exist or not, although Einstein believed that gravitational waves exist.

Then last year, in 2016, mankind announced the discovery of gravitational waves for the first time, confirming Einstein's inference, so that mankind's understanding of the starry sky further developed, and then the era of gravitational waves. I don't know exactly what gravitational waves are, I'm not a professional in this area, but I know that gravitational waves have always been an unsolved mystery before.

Gravitational waves are Einstein's inference, and this can be regarded as an unsolved mystery mainly because the existence of gravitational waves has not been discovered at that time, and now that the existence of gravitational waves has finally been discovered, this unsolved mystery is over.

Two: The face on Mars.

I was also very surprised when I saw this in a book when I was a child, how could there be a human face on Mars, it was like some routine in a ghost story, ** suddenly a human face appeared, and then I was startled. But this was about Mars, and it was written in a book, so I took it as a fact at the time.

Then more than ten years ago, human beings explored Mars more and more deeply, and then found that the so-called mystery of the face on Mars is actually some rocks, a kind of topographic structure, in fact, this is relatively easy to understand, even on the earth, there are often this kind of sudden appearance like human faces or like something. Most of this comes from the imagination of human beings, and if you just observe it, you will find that it does not look like a human face at all.

In fact, there are many so-called unsolved mysteries that are similar to this, like what the Loch Ness Monster, most of them are human imagination, maybe there is no water monster at all, just some rumors, but human beings still want to go to Loch Ness to see the legendary water monster with their own eyes, and the mystery of the huge footprints, maybe just by chance, of course, before the truth is revealed, it is impossible to assert what it is. In short, those unsolved mysteries will be slowly uncovered in the future.

Since time immemorial, we have left many mysteries that none of us have been able to explain, and scientists have spent a lot of energy and time to solve some problems that our human abilities cannot solve. And then with the continuous development of science, of course, we also have some of the mysteries that have been solved in the past and belong to the unsolved.

For example, we used to deal with the mystery of sharks giving birth. There were three female sharks in one place, and then they grew for a long time, and then one of the females gave birth to a baby shark. At the time, we were all wondering why the female shark had never had contact with a male shark, let alone mated.

It wasn't until later that scientists dissected the baby shark and then performed DNA testing, and then found that the male shark gene was not detected in the baby shark. This means that this baby shark is produced by a mother shark alone. Then came the first shark that asexual reproduction.

And then also in recent years, there is a second baby shark asexual reproduction also produced. This is one of the unsolved mysteries that will be solved in the 21st century. <>

There is also the prototype of a movie we once watched, that is, the sinking of the Titanic. A lot of people died when the Titanic sank to the bottom, and one of the boys was unrecognizable when he was found on the ocean, and then through continuous efforts and continuous reconnaissance, the name of the little boy was determined to be one of the four boys, and then it was determined that he was one of the boys. However, it was later discovered that there was a lot of evidence that the boy was not the boy identified before, but someone else.

So they dug up the child's body, dissected the body and used advanced detection technology, and finally found that the little boy was another little boy among the four little boys they had initially guessed. This matter also became one of the world's unsolved mysteries at that time, and it was not solved correctly for a long time, that is, it could only be solved until the continuous progress of science and technology.

At the end of 1993, 18 Japanese scientists from their respective fields of study jointly proposed seven challenging topics, called the Seven Mysteries of Science in the 21st Century.

Its contents are:1Flowers and butterflies. 2.Life and death. 3.Mind and body. 4.Left and right. 5.Yin and yang. 6.Fiction and reality. 7.Male and female.

The proposition of these seven riddles has grasped the main topics among the many difficult problems in today's science, and has a high degree of comprehensiveness and generalization. Each mystery involves a wide field of multidisciplinarity. For example, the mystery of flowers and butterflies explores the law of biological co-evolution, involving biochemistry, chemical ecology and other disciplines.

The proposition of these seven riddles has a strong philosophical flavor and is full of dialectics, which is different from the previous seven riddles.

Starting from real cases, the book "The Unsolved Mysteries of the Century" is based on dozens of declassified documents provided by the FBI and authoritative investigation conclusions and latest discoveries from the private sector, through 550 real moments recorded by photographic lenses that witnessed the scene, comprehensively deciphering the ins and outs of the unsolved mysteries of the century, and showing you another unknown and thrilling face of human history.