Meteorites and stellar streams

And in both cases in our atmosphere burst with tremendous speed solids, and meteorites, and the flow of highly compressed air in its path, very hot, red-hot and emit light. Of course, it is impossible not to notice and a sharp distinction between a small star who slips silently from the sky, and a huge fireball, which is a crackling noise and crashes down on the ground and shatters the stone rain, however, star streams, and meteorites are only the extreme members of the phenomena : among them there are subtle transitions. Very small or fast-moving atmosphere of the body are broken before they reach Earth, and the noise of them taking place in remote areas, can be heard on the earth's surface. This consideration allows to ascribe the same origin of meteorites and falling stars, the more so in some cases, meteorites was reduced to a point of radiation of known stellar streams. Although at the time the Leonid and Perseid number of meteorites falling to Earth does not increase in comparison with other months of the year, yet this fact does not disprove the assumption made: there are very good reasons to think that he has no special meaning. Astronomers believe that the Earth's atmosphere every day are 10 - 12 million shooting stars, meteorites falling to Earth is no more than two or three, so that all of the solids entering the atmosphere, only a tiny amount falls to Earth, but the majority is dissipated in the air . Therefore, the conditions under which appears meteor shower in the atmosphere, have much more value for the conservation of its constituent bodies than their total number. The destruction of meteorites is due to the speed with which they pass the atmosphere: the faster moving air in the body comprising the stream, the easier they can be destroyed before reaching the earth's surface. The speed at which the meteor penetrates the air, depends not only on its speed, but also the direction of motion. Assume that it is moving in a direction opposite the rotation of the Earth's atmosphere as the Earth moves together with the upstream, the speed of the latter increases by an amount equal to the velocity of the Earth (about 4 miles per second). In the opposite case, when the flow is in the same direction as Earth, its velocity in air is reduced by an amount equal to the speed of the Earth. This implies that the meteors are those streams that move toward Earth or cross its path at a very acute angle, are in unfavorable conditions for preservation: a relatively small portion of them will fall to Earth, the Leonids and Perseids just belong to such flows: it is clear that 9 - 13 August 13 - November 14, the Earth does not fall more meteorites than at any other time.