All people have that custom that characterize us as human beings and are creators of everything that they say sea by a person, heard it on the radio, on television an internet video, we should always be sure to check the sources before we can Share them for that I want to show you ten myths that even many people believe are true

6 The Chinese wall can be seen from space

This myth tells that the Chinese wall is a structure that can see from the space and is even from the moon is visible but when a person travels to space their vision is more or less this

And although we can recognize the continents certainly observe some detail as a building or a building built by the human being would be totally impossible, the relevant thing is not the length of the wall (7300 m Approximate) if there are no anchors that are not less than 6 Meters to illustrate with an example, to see the Great Wall from a distance of 160 kilometers [of height] I am the same as a cable of 2 centimeters in diameter of more than half a kilometer of distance, or to distinguish a human being of 1.70 m Of height to 45 km. Even an optically perfect human eye would be unable to see the monument.

5 Fish has poor memory

Undoubtedly one of the most popular is the myth that fish have very poor memory, with only capacity to remember what happened a few seconds ago and that better example than the goddess of Finding a Nemo. That made our thinking about this myth reinforce, but this is totally false, these animals have more intelligent than you think. They may remember predators who attacked them in the past and are able to learn tricks, associating sound with food and keeping tricks as a dog would.

4 if you swallow a gum this stuck in your stomach for years

Let's not have heard this myth, is the favorite of our mothers and grandmothers, the era that does not swallow a gum this stuck to our Stomachs
But do not worry about that gum you swallowed years ago when you were a child is not stuck in your stomach this was expelled by your body the next day. While the chewing gum is in a humid environment like your mouth or stomach, it does not stay or stick to it. Even if nothing happened to swallow a gum is not recommended as you could suffer from other problems

3 "cuac" of the ducks did not echo.

Until recently it was believed that the "quack" of the ducks does not produce the echo. But a couple of years ago Professor Trevor Cox of the Center for Acoustic Research at the University of Salford (UK) managed to ruin this urban legend to record the croaking of a leg called Margarita in a reverb chamber.

In this way he demonstrated that the sound waves that the grain of the animal also are reflected when hitting against a hard surface, giving rise to the phenomenon that is called echo. The echo of the croaking of these birds is hardly perceptible by the human ear, especially in open spaces. Besides that, according to Cox, the long "aaaacckkk" at the end of the call of the duck manages to mask any echo of comes the origin of this myth.

2 After dying our hair and nails continue to grow

This myth says that when we die our nails and hair continues to grow a few days after death. A big lie that has not created the movie industry's belief and the reason is that:
Let's start with the hair. The hairs are embedded in the skin (dermis and epidermis); Free shipping, the process of dehydration in our organism, a part of which chemicals (recordings that 70% of the mass of tissues is water), shrinking and retracting in large measure. When shrinking the skin, the sight of the base of the hair that originally was embedded in the skin. Therefore, even if you see the deceased, some of the hair will come out for a few days.

In the case of the nail something similar happens: the tissues of the tips of the fingers shrink (about 60-70% of its volume) creating a false sense that the nail has grown.

1 The five second rule

Uffs that I can say is in the reliable old Who has not dropped something from the food to the ground and quickly raised it before the five statutory seconds are consumed. According to the "five-second rule," very popular in some countries, food on the ground (or any surface) is a safeguard of bacteria for the first five seconds. So that you can eat in that period of time without risk to food contamination. But that's true

In 2003, Jillian Clarke did an experiment at the University of Illinois. Clarke began by doing a survey, to find out how many people knew this rule. It turned out to be 70% of women and more than half of men, and many said that they followed.

Later, Clarke contaminated ceramic tiles with Escherichia coli and placed treats and cookies on the tiles during the "regulatory" five seconds to see if they were contaminated or not of bacteria. The result was that they did get contaminated.

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