9.04 from 18.00 to 20.00
15.04 - from 13.00 to 17.00
17.04 17.00 - 20.00
19.04 - from 18.00 to 20.00
20.04 - from 1.00 to 4.00
22.04 17.00 - 20.00
25.04 - from 7.00 to 10.00
26.04 - from 18.00 to 21.00
It is interesting to know:
The Earth's magnetic field
As you know, our planet has a magnetic field that is essentially a large magnet. Not all planets of the Solar system can boast of such properties. The poles of this magnet are located close to the geographic poles of the Earth, but not completely coincide with them, so the arrow beloved childhood compass is not strictly North and the magnetic North pole. The angle between the direction of North and magnetic North is called magnetic declination. In low and middle latitudes it is small, so the compass needle shows almost exactly to the North, and in high value increases and it is necessary to amend. For millions of dollars in the history of our planet's magnetic field was changed many times, the magnetic poles gradually drifted and even changed places, so moving to a time machine into the past, the compass would have to use very carefully.
Magnetic storm
The magnetic field captures from outer space charged particles (protons and electrons) that move along the lines of the field intensity and form the so-called radiation belt of the Earth. The flow of such particles increases especially during disturbances on the Sun. In times of maxima of solar activity on the Sun occur outbreak, which resulted in space released a huge number of substances, some of which were moving with the speed of 400-1000 km/sec, for 1-2 day reaches of earth's atmosphere. Such a strong corpuscular stream outraged by the Earth's magnetic field, resulting in fast and heavily modified characteristics of the magnetic field, which is called a magnetic storm. Thus we can say that magnetic storm is fast and strong changes in the magnetic field of the earth that occur during periods of increased solar activity. Magnetic storms are accompanied by disturbances of the ionosphere, which leads to deterioration of radio.
Forecasts magnetic storms
Magnetic storms affect many areas of human activity, from which you can select disrupting communications, navigation systems spacecraft, the occurrence of surface charges on the transformers and pipelines, and even the destruction of power systems. Therefore, the monitoring and prediction of magnetic storms is of great value.
Confirmed the negative impact of magnetic storms on health
It is possible that the warning of geomagnetic storms will become an integral part of the daily weather forecast. Made by Russian scientists study confirmed the negative impact of magnetic storms on the health status of patients suffering from cardiovascular diseases.
As is known, the solar wind interacting with the Earth's magnetic field causes magnetic storms. They worsen the condition of people with disorders of the cardiovascular system. The study in question was carried out by specialists of the Russian University of friendship of peoples and the space research Institute with support from the us Agency NASA.
Using electron microscopy was estimated dependence of cardiomyocytes from rabbits instability of the Earth's magnetic field. It turned out that during magnetic storms increases blood viscosity, develops hypercoagulable state, increase the local concentration of adrenaline and severity of tissue edema.
In addition, it was found that of the 89 thousand cases of myocardial infarction, registered in hospitals over the last three years, 13% were associated with magnetic storms. Scientists have even proposed to equip ambulances with special devices that respond to the perturbation of the Earth's magnetic field. As a rule, magnetic storms observed 2-3 times a month, more often in countries far from the equator. In healthy people during magnetic storms the feeling is not changed.
Source:
Today
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