Research group of scientists from Germany have proved that in the memory of mankind once happened very fast inversion of the magnetic poles of the Earth. It happened approximately 41 thousand years ago. And no catastrophe on the planet at this moment deslocados, although magnetic security, according to calculations, fell in twenty or thirty times.

Horror story about the fact that because of the inversion of the poles of the magnetic field of the Earth we all have very, very bad, for several years with the media pages and sites excites the minds of the readers. And it should be noted that some cause for concern among the scientists were. Although, of course, purely theoretical, because none of them were able to observe directly the inversion from start to finish - it usually lasts long enough for several thousand years.

Let me remind you that under the inversion of the magnetic poles call offset such as to their previous place of provisions. In the North pole "to" South and South - North. Consequently, changing the direction and the magnetic field lines, and the traces of these changes are different rocks capable of magnetism. By the way, about what's going on, first learned geologists studying the magnetization of various deposits.

It is considered that the current mix of magnetic poles began somewhere in the area of 1885. According to the results of observations over the past 100 years the magnetic pole in the southern hemisphere shifted about 900 km and went out into the Indian ocean. And his namesake from the Arctic began to move towards the East-Siberian world magnetic anomaly over the Arctic ocean, and from 1973 to 1984 was 120 km, and from 1984 to 1994 - more than 150 km. i.e. inversion really is in full swing.

However, scientists are worried about is not this, but the fact that during such offsets the intensity of earth's magnetic field always falls. However, she does it unevenly. Thus, according to studies, over the last 22 years she has decreased on average by 1.7 percent, and in some regions, for example, in the southern part of the Atlantic ocean as much as much as 10 percent. However, calculations show that in some places the magnetic field strength, despite the General tendency, on the contrary increased. So, apparently, everything is much more complex than suggested by the theory.

However the decrease of tension, in theory, have a negative impact on all the inhabitants of our planet, not only those who can speak and walk on two legs. The thing is that if the magnetic field is getting weaker, it ceases to address effectively the flow of particles coming to Earth from outer space (first of all from the Sun). In the end, our planet can receive an increased dose of radiation, which, you know, nobody is useful.

In addition, large streams rushing "headlong" particles is fully capable to destroy transistors and other components of modern electronics. This cannot but affect the performance of computers and other appliances, without which now most people do not realize its existence. So ease tensions may not only be caused by a number of technogenic catastrophes, but to provoke something worse (for example, nuclear explosions - because nuclear plants and missiles, bearing the appropriate warheads, people are too controlled by computers).

Needless to say, the prospect opens gloomy. But how realistic are such "apocalyptic" scenario? A recent study by a group of scientists from Gelmgolts Association of German research centers under the supervision of Norbert Kovacica and Helge of BCAA showed that everything is not so bad as some imagine. From their point of view, the rumors about the danger of falling intensity of magnetic field of the Earth is very, very exaggerated.

Researchers working with sediment samples extracted from the bottom of the Black sea, suddenly discovered that they "recorded" information about one of inversion, which had not been known to the scientists. And it happened somewhere 41 thousand years ago, that is in the memory of mankind. But not surprisingly it, but the fact that displacement was very quick in geologic terms. "The geometry of the field inverted polarity, which pointed in the opposite of the current configuration direction, there were only 440 years and was associated with the magnetic field, which power was the current quarter. The actual change of polarity lasted for only 250 years. In geological time scales, this is a very fast", - commented the results of Dr. Moravcik. So, by all calculations, it turns out that for this quarter of a Millennium magnetic field was twenty times weaker than the present. This is confirmed by the results of the analysis of radioactive elements in the samples. So, exactly at this period is the maximum concentration of radioactive beryllium-10 and C-14. There then happened what's there to be afraid scientists - in a while the Earth remained without magnetic protection. And what does it lead to?

The most interesting thing is that to anything special. On the background of 250-year twentyfold the fall of the magnetic field strength nor happened no mass extinction of species, neither catastrophic reductions in their numbers. Simply put, ecosystems simply did not notice. Well, humanity did not hurt - it has passed through dramatic decline much sooner 100-74 thousand years ago, and during this period, growth was observed in all populations.

Moreover, given that usually at the magnetic equator intensity of the magnetic field of the planet is twice less, than at the poles, and 1.5 times higher than on average, it turns out that under the most severe blow had to be tropical regions. Tensions could decrease more than thirty times. And as luck would have it all modern models, it is tropical biocenoses then showed the greatest stability. There was even an extension of wet zone forests in all continents - and even these ecosystems are the most sensitive to changing conditions, and if not, prefer "to die out, but don't give up".

So, it turns out that any danger to life with a severe fall of tension not at all. And for everything else, too." The fact that the opening of German scientists also put into question the popular hypothesis about why on Mars now there is no water. According to her, the Red planet, the magnetic field which is very little, have lost much of their former oceans and atmosphere due to the direct effects of the solar wind, bearing them into space. However, during the strongest magnetic field weakening on a similar to the Mars to the Earth nothing of the kind was observed - all the oceans remained in their places, and the atmosphere too.

So, it seems mankind should part with another horror story and finally stop panic when the phrase "inversion of poles". What we fear, if once we have experienced, and not even noticed that something was wrong? And another time, too, will survive, will not escape...