10 evidence that we know too little about the world
The difference between clever and learned that the wise man always declares that he knows a lot of, and the scientist usually claims that he knows nothing. Ask an expert in any field, and he confirmed that in his case much less things that he knows what things he does not know.
Mankind always wants to know as much as possible of the new, the which is why in the world there is a science, which helps us gradually learn all the secrets of the world. However, not all of today understandable to us. Here are some examples.
Why do we sleep and why we see dreams?
Every night almost all the people of the world are accustomed to sleep and dream, and why this is happening, the researchers can not answer properly. Theories, of course, a lot. On one of them, we dream, to tidy up your mind or to get rid of stress.
Studies have shown that sleep can be used as an indication that can happen to our body in the future, for example, by means of dreams, you can see if there is the risk of diseases such as Parkinson's disease or dementia.
Even more strange may seem the results of research scientists from New Mexico. It was found that trained research participants could manipulate their nightmares, thereby curing depression.
When we finally understand exactly why we dream, we can do a huge amount of incredible discoveries. While we are far from the truth. For millions of years, a third of our lives we spend in sleep, almost constantly dreaming, but do not yet know why.
What happens after death?
Death - another great mystery of our world. No one can say with certainty is not what happens after, when our body ceases to function. Scientists do their best to find this out, but are instead of answers more questions.
The first important issue is the state of clinical death. A huge number of people talk about the fact that see the white light, they hear the music floating in the air, leaving his body, and more. This experience can not be called hallucinations, because they occur when the brain and the heart are switched off.
There is a second question: what happens to consciousness after physical death? According to one of the leading experts in the field of the return to life after death, the doctor Sam Man, people can rise without the lengthy physical damage within 10 hours after death. This suggests that our mind still continues to exist, even if the body was not resurrected from the dead.
About death, we know very little, despite the fact that already many thousands of years trying to understand its nature.
Why is there life on Earth?
We have come a long way to go before the have learned to create artificial life. However, we must admit that we do not know for sure why the life that boils around us today, came into this world.
The only thing we know that at some point in Earth's history, more precisely, 3, 8 billion years ago molecules began to show is incredibly complex chemical reaction of, which eventually led to the the emergence of ribonucleic acid and, ultimately, life.
What is the molecule stimulated to such a reaction, it remains a mystery to this day. According to one version, all this - God's creation, in another version, all the fault of ultraviolet light, however, to answer exactly why it happened, no one can.
Scientists from around the world are trying to solve the puzzle and recreate the the original cocktail, which was the world, in the hope to witness the moment when life originated, but in vain.
What are the laws of the universe?
Based on observations, we conclude that Universe expands, it can not be denied. You also can not deny the fact that the it is accelerated. According to all the laws of gravity must, on the contrary, slow down, preparing for the "Big Squeeze" - the process of reverse Big Bang, but the reality is somewhat different. Why is this happening?
Many scientists blame the dark energy and dark matter, which, in their opinion, constitute a large part of the universe. However, where it is this energy and this matter - is unknown. Moreover, 100% proof of their existence does not exist.
Universe lives by its own laws, and we are only left to wonder and to give suggestions.
Mysteries of History
We are accustomed to consider history as a kind of narrative, which has reached our days. However, over time many of the facts have been lost in the history of forming large white spots.
Although we are very much aware of some eras, for example, the stages of the era of ancient Rome, many pages of history, and even for centuries we do not know, and we can only guess about some things these pages.
Take, for example, Britain 6th century. Roman influence disappeared at this time, Christianity only began to develop, and Scandinavia began to gain momentum. This important period of history little is known. Before we reached only one half-witted monk sermon, 90% of which is dedicated to the divine justice.
Even such great powers as Ancient Rome and Ancient Greece, left far from complete information about yourself. Much of our knowledge of those times is based on unreliable sources. Opening in every year. For example, recently it was discovered that the Greeks have built something like a prototype of a computer has for 2000 years to Babbage.
Why would a man art?
Ask any creative person, what he paints, writes, or is engaged in other creative pursuits, and it is unlikely you will get at least some distinct and clear answer. The man is engaged in creativity, did not know why exactly he was doing.
For example, there is no evolutionary advantage, both for the species, that we began to draw. We can only speculate why do we art.
According to one theory, creative expression - music, sculpture, painting, and so on - all this is just the equivalent of peacock feathers, ie, it is necessary only to attract the attention of the opposite sex and, therefore, meet the sexual needs and reproduction .
True or not - is debatable, we can only guess. In our arsenal as long as there are only theories and assumptions.
We know from childhood that once upon a time lived on this planet are not the same creatures that we are used to seeing today. On most of them, we have no idea, as their fossilized remains before us simply does not come down with the passage of so many years.
For example, to dinosaur skeleton preserved for millions of years and has come to us, you want to weight of the difficult conditions. This means that even if we find the skeletons of some species, these skeletons are not always complete. Remains most creatures do not survive. For example, we heard only a few bones of living creatures that lived in the Middle Triassic period, which lasted ten million years
Even if the researchers manage to find large pieces of fossils, in fact it is only small parts of a larger whole. According to National Geographic, a 59 percent dinosaurs known to science, are known only by a small fragments. Because of this paucity of information, scientists often make the mistake of taking some things for others.
On the last of the famous writer, whose works are known throughout the world, we can not always tell a lot. Take, for example, William Shakespeare, one of the most readable authors whose plays were all theaters of the world on a mandatory basis.
It is surprising that in spite of such a celebrity, Shakespeare too little is known, moreover, there is an assumption that the this writer did not exist, and the works were written by a group of playwrights common pseudonym.
About Greek poet Homer, the author of the famous "Iliad" and "The Odyssey", it is known very little. More precisely, it is known only that "he's probably there." Also, we are not sure that those of his works that we know today - the originals.
Of all the Roman literature, on the other hand, the retained only two of the novel, and then only in fragments. A great many literary works were destroyed by different soldiers, fires, earthquakes and so on.
The force of gravity
We have already mentioned that the dark matter can explain why the The universe does not obey the laws of gravity. But we forgot to mention that the very gravity is also not subject to its own laws.
Gravity, simply put, is the only one of the four fundamental forces that contradicts itself and ceases to operate if the body becomes sufficiently small.
In fact, gravity - a real headache for physicists, and some of them claim that the it does not exist. Every time we make some important discovery, we realize how little we know about the world.
The theories about the world changing all the time
If you think of science as a house of cards, and each new theory breakthrough as a 10-ton iron ball that had fallen on him, you will understand the essence of the problem. Approximately at the end of the 19th century, we sincerely believed that almost reached the frontiers of knowledge. But this time there was a citizen by the name of Einstein, which is published, perhaps the most famous formula in history, and all concepts of the world completely destroyed.
We began to build our understanding of the world from the beginning, and everything went well until we noticed that the behave quite so black holes, as we have assumed. Today we are on the threshold of new turns in the development of science. This means that some of the fundamental concepts can be reviewed again.
For example, it is possible with the help of string theory to "prove" that the we are living in a kind of hologram, which is projected from the edge of the universe. Of course, this is not the prevailing theory, but it shows how strange it may be true.
Thus, nothing is meaningless, and you can be just the image that is projected from the depths of space.