Extraterrestrial Civilizations (2011)
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In our eReader you can find the full English version of the book. Read Extraterrestrial Civilizations Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Extraterrestrial Civilizations
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Beyond Mars is the “outer Solar system,” which is far vaster and within which giant planets orbit. There are no less than four such giants out there: Jupiter, Saturn, Uranus, and Neptune. Each dwarfs Earth, particularly Jupiter, which has over 1,000 times the volume of Earth and over 300 times its mass.
Why should the inner Solar system contain pygmies and the outer Solar system giants? Consider— The cloud out of which the Solar system was formed would naturally have been made up of the same kin...d of substances that make up the Universe generally—more or less. Astronomers have, through spectroscopy, determined the chemical structure of the Sun and of other stars, as well as of the dust and gas between the stars. They have therefore come to some conclusions as to the general elementary makeup of the Universe. This is given in the accompanying table: Element Number of Atomsfor every 10,000,000Atoms of Hydrogen Hydrogen 10,000,000 Helium 1,400,000 Oxygen 6,800 Carbon 3,000 Neon 2,800 Nitrogen 910 Magnesium 290 Silicon 250 Sulfur 95 Iron 80 Argon 42 Aluminum 19 Sodium 17 Calcium 17 all other elements combined 50 As you see, the Universe is essentially hydrogen and helium, the two elements with the simplest atoms.
What to read after Extraterrestrial Civilizations?
You can find similar books in the "Read Also" column, or choose other free books by Isaac Asimov to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Beyond Mars is the “outer Solar system,” which is far vaster and within which giant planets orbit. There are no less than four such giants out there: Jupiter, Saturn, Uranus, and Neptune. Each dwarfs Earth, particularly Jupiter, which has over 1,000 times the volume of Earth and over 300 times its mass.
Why should the inner Solar system contain pygmies and the outer Solar system giants? Consider— The cloud out of which the Solar system was formed would naturally have been made up of the same kin...d of substances that make up the Universe generally—more or less. Astronomers have, through spectroscopy, determined the chemical structure of the Sun and of other stars, as well as of the dust and gas between the stars. They have therefore come to some conclusions as to the general elementary makeup of the Universe. This is given in the accompanying table: Element Number of Atomsfor every 10,000,000Atoms of Hydrogen Hydrogen 10,000,000 Helium 1,400,000 Oxygen 6,800 Carbon 3,000 Neon 2,800 Nitrogen 910 Magnesium 290 Silicon 250 Sulfur 95 Iron 80 Argon 42 Aluminum 19 Sodium 17 Calcium 17 all other elements combined 50 As you see, the Universe is essentially hydrogen and helium, the two elements with the simplest atoms.
What to read after Extraterrestrial Civilizations?
You can find similar books in the "Read Also" column, or choose other free books by Isaac Asimov to read onlineMoreLess
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