Welcome to Paris a number of experiments showed that the same in depth by the action of compressed gases on solids and can be obtained by explosions of dynamite, gunpowder, gun-cotton, etc., so you should assume that the compressed air is glowing with tears, too surface of the meteorite chunks of their mass, crumbled into fine dust, they remain in the tail. In those parts of the meteorite, which are rich in troilite, - according to Brezine, maloprochnym mineral - especially easily formed cavities and even perforation. On the other hand, as first shown by Goldschmidt, uneven expansion suddenly heated surface is semicircular skorlupok separation and the formation of small dimples. Last seen also on the rocks, found in deserts, due to sudden heating or cooling from the surface of the stone bounce skorlupovatye shards and formed grooves.
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