In the world there are many myths that scientists try to refute or confirm, so that mankind does not live in error. We bring to your attention a selection of the most common deceptions.
Apparently, myths will always be present in people's lives, since it is very difficult to get rid of one's own convictions. Thanks to technical progress and the work of scientists, it was possible to debunk a large number of fake facts, in which many believed for decades. Enough to live in a fairy tale - it's time to learn the reality!
1. Myth - you can not eat after six
Let's start with deception, which hurts a huge number of people who want to lose weight. The time of the last meal depends on how much a person goes to bed. The rule is very simple: it is not recommended to have supper later than three hours before bedtime. If you do not eat for a long time, then in the next meal the body will require much more "fuel". Hence the conclusion: if you go to bed far after midnight, then boldly eat after six.
2. Myth - it's forbidden to put hot in the fridge
Here admit, you will necessarily cool the food before you send it to the refrigerator? Interestingly, few people can explain why he does so. Food safety specialists recommend that they act on the contrary, that is, they believe that the cooked food should be placed in the refrigerator as early as possible, since this stops the process of reproduction of bacteria and better preserves the benefits of the dish. The problem is that household refrigerators are not designed to cool large hot pans, so they will quickly fail.
3. Myth - red color causes bulls aggression
Have you seen the bullfighter waving before the bull with a red rag, and he just goes mad? So: the color of matter here does not matter. For general development: bulls do not distinguish colors, and angry their rag shaking before the eyes. Myth was debunked by experiments, which showed that the color of the used matter is not important for the animal.
4. Myth - women are stupider because they have less brain
In this myth two errors are immediately presented. Considering the size of the brain, it should take into account some clarifications: if we compare the average weight and body volume, the female brain will be less than the male, but if you do this in relation to the weight and body volume, then the fair sex will go to the first position. In addition, scientists have proved that the level of intelligence does not depend on the size of the brain, since its structure is important.
5. Myth-bats are blind
Scarecrow from childhood was not true. These animals have a good vision, although for hunting they mostly use echolocation, and sometimes both.
6. Myth - a person has only five senses
Even at school, children are taught that a person has such senses: sight, smell, taste, hearing and touch. Scientists are sure that a person has much more, about twenty, or even more. For example, people have the ability to feel the temperature, balance during skating, feel hungry or thirsty and much more. For all this, we need our own receptors.
7. Myth - you can not put a mobile phone while sleeping
When the popularity of gadgets began to increase, along with them the rumor spread that they emit radiation dangerous for health. Studies have shown that this is nonsense, and no dangerous effects will be brought by a nearby smartphone. The effect of the electromagnetic field is observed during the time a person talks on the phone, dials a message, or performs any other actions with it.
8. Myth - dogs see the outside world in black and white
A huge number of people believe in this myth, but research has shown another result. It turned out that dogs see all the colors, but not in such bright shades as people.
9. Myth - venous blood blue
Great idea for the movie "Avatar", but not for reality. Of course, if you look at the veins that appear in some parts of the body, it seems that the blood is blue. This is quite understandable explanation - the veins are close to the skin surface and the only light that can penetrate it is blue. Know that all the blood in the human body is red.
10. Myth - water can not be re-boiled
In the network, you can find a lot of horror stories that re-boiling leads to the repeated destruction of water molecules, which become "dead" and dangerous to human health. In scientists, this information causes only a smile. Heavy water is present in the world in minimal quantities, and it is almost impossible to obtain it at home.
11. Myth - a person when he lies, looks away.
While communicating with people, you always want to know what they really think, tell the truth or deceive. The trick of taking away the view was disproved by scientists who determined that only experienced and trained people can calculate the liar in the eyes and facial expressions. Man can look away for different reasons.
12. Myth - The Great Wall of China can be seen from space
Probably, to confirm the majesty and scale of this structure, the myth was invented that the structure can be seen from space, and even from the Moon. In fact, astronauts refuted the fake. They compared this as an opportunity to see human hair from a distance of three kilometers.
13. Myth - Teflon is dangerous to health
Since the very appearance of Teflon cookware, it has been accompanied by stories that this coating is poisonous. Especially dangerous for people is the damaged surface, as a scratch can cause serious poisoning. Doctor of Sciences Ludger Fischer says that this is all fraud, and Teflon does not enter into any chemical reactions with the products, and if it enters the body, it is inferred naturally without any consequences. If the frying pan is scratched, it will simply lose its non-stick properties, nothing more.
14. Myth - lightning can not hit one place twice
Since ancient times, there is a myth that lightning never strikes one and the same place. In fact, this is a dangerous and wrong opinion, because such a situation is quite real. To confirm this, it is enough to cite as an example lightning conductors, in which lightning strikes often, that is, in the same place.
15. Myth-Everest is the highest mountain in the world
Many, relying on information in textbooks and other sources, agree with this statement. In fact, in Hawaii is the volcanic peak of Mauna Kea, whose height above sea level is 4205 m. Here again there will be many disturbances, since the height of Everest is more than twice. It's very simple - most of this peak goes to the bottom of the Pacific Ocean, so the total height is more than 10 thousand meters.
16. Myth - tin cans are toxic
A common culinary myth says that after opening a can becomes toxic, so the contents should be immediately transferred to a plate, and the can - discarded. Modern technology allows you to cover the container from the inside with a special lacquer that is harmless and even elastic, so it reliably protects the products from contact with the metal. The main danger lies only in swollen cans.
17. Myth - parts of the tongue feel different tastes
We do not know who invented it, but really a huge number of people believe that the language is divided into parts, and each of them determines its taste: salty, sweet, bitter and so on. This turned out to be untrue, because the entire surface of the tongue feels any taste the same.
18. Myth - year of a dog's life is equal to seven human
Another fraud associated with our smaller brothers. Polls showed that about 50% of adults believe in this information, which has nothing to do with real science. It was determined that the equivalent age of the dog is curled from its breed and size, but varies depending on the stage of life.
19. Myth - microwave causes cancer
There are people who are still afraid to buy a microwave oven, believing that it radiates heat energy. Scientists unanimously assert that microwave radiation is safe for humans, since it is not ionized, which can not be said about ultraviolet rays.
20. Myth - wooden boards are not suitable for cutting meat
This opinion is explained by the fact that during the use of the knife on the wooden surface microscopic scratches are formed in which microparticles of meat and bacteria remain, so it is better to use plastic boards that can be decontaminated. In fact, this is not so, and scientists at the University of California have determined that plastic boards do not give a sense of antibacterial safety. In addition, if you place bacteria on a wooden board, the natural properties of the tree will not allow them to multiply, and they will eventually die.
21. Myth - after the bite of a snake you need to suck the poison
Workers of the Red Cross argue that in no case can you suck the poison out of the wound, since there are many bacteria in the oral cavity that get into the blood and can aggravate the situation. In addition, the mouth can be wounded, which also will get snake venom. The correct solution is to wash the wound with soap and apply a bandage. In addition, it is important to immobilize the limb and keep it above the level of the heart.
22. Myth - camels store water in the humps
When children ask why camels have humps, parents do not hesitate to reply that they have water there, which they store for traveling in the desert. So this myth spreads. In fact, camels can be without water for several months, and they store their stock in one of their three stomachs. These animals use humps to store fat, which prevents them from starving, if there is no other food.
23. Myth - if you add salt to the water, it will quickly boil
This information can be heard not only from the lips of housewives, but also professional chefs, but chemists assure that this is not true. Salt is able to change the boiling point of water, but it all depends on its concentration, and the amount that is added when cooking in the kitchen is not enough.
24. Myth - people suffering from sleepwalking, you can not wake up
There is a version that if the sleepwalker wakes up while walking around the room, then you can cause him serious harm. In fact, this information has no scientific confirmation. A sleepwalker after awakening will probably wonder why he is not in his bed.
25. Myth - a person uses only 10% of the capabilities of his brain
Never use this information if you do not want to seem stupid, since a person has the whole brain working, just not all of his parts are involved at the same time. As a result of the research, scientists could not find the jot would be a small area of the brain, which in different situations remains unoccupied.
26. Myth - it is more useful to eat low-fat foods
People who want to lose weight think that one should eat low-fat foods, but without fats the body can not absorb most of the nutrients, and this causes many health problems. It is recommended to include in the diet products with monounsaturated fats, but the percentage of fat content of fermented milk products should be about 5%.
27. Myth - the nature can be determined by the blood group
There is a version that, knowing the blood type of a person, one can learn about the basic features of a character. For example, the owners of the first group, are generous, the second - restless, the third - selfish, and the fourth - unpredictable. This information has no scientific proof and is considered an invention.
28. Myth - fingerprints are unique
Many people are 100% sure that the drawing of fingerprints is unique. In fact, science does not know how to prove it, considering it impossible. Interestingly, in the history of American justice, 22 cases were recorded, when completely innocent people turned out to be behind the bars because of mistakes in determining the correspondence of fingerprints behind the bars.
29. Myth - vaccination can cause autism
Many horror stories are associated with vaccinations, so many people have developed fear that if they vaccinate their child, they become autistic. To begin with, it should be understood that autism is a disorder manifested in limited social interaction and the desire to constantly repeat the same things. Scientists claim that vaccination can not cause such reactions.
30. Myth - dairy products are indispensable and unique for strengthening bones
Dairy products contain calcium and vitamin D, but not only does this affect the strength of bones, since vitamin K and magnesium are also important for this. To take care of their bones, it is necessary, besides dairy products, to include in the diet leaf greens, cabbage and other useful food.