From The Chronicle Of Centuries In The Story

From the chronicle of centuries In the story of remarkable fantast I.Efremova "heart of the Snake" it is told how in boundless space there were people, representatives of the planets carried on billions billions of kilometres. The purpose and those and other cosmonauts - to find in open spaces of the Universe of people of other worlds. Rockets have met. But a meeting of people has not occurred: for aliens who in all are similar to people, there would be deadly an atmosphere of the ship of the terrestrial people, sated with oxygen because air of their planet contains for breath gas fluorine, in turn killing for people. Similar in everything, except the one and only particular which, however, is pernicious for their organism, incompatible with their life, people could not embrace each other and meet all together onboard one . With extreme grief they have directed further - the different ways. The Similar sad story was reproduced in the story "the Snow Maiden by"writer K.Bulychyov: The astronaut has grown fond of the fine girl from a far-out planet in which body instead of water there was an ammonia (boils at temperature the minus 33 �).