## One, two, three ... infinity: facts & speculations of science |

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### Contents

Natural and Artificial Numbers | 25 |

Unusual Properties of Space | 43 |

Coordinate systems | 44 |

Copyright | |

83 other sections not shown

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### Common terms and phrases

61 Cygni actually angles apple astronomer atomic nuclei atomic weight axis beam body cells charged chemical chemical elements chromosomes co-ordinate color comparatively completely considered corresponding course crystal cube curved direction discs distance Earth electric electric charge electrons elements energy entropy equal ether Euler's theorem example fact fire atoms fission formed four-dimensional fractions galaxies gametes genes geometrical hydrogen imaginary numbers infinite numbers infinity integers known large number larger laws light-years look mass material mathematical matter measure mechanical million molecules motion moving negative neutrinos neutrons nuclear nucleons nucleus number of separate observed ordinary organism oxygen particles physical picture plane polyhedron positive possible primes probability problem properties protons Pythagorean theorem represented result rotation simple sional speed of light sphere spherical square root stars stellar structure substances surface temperature theorem thermal thorium three-dimensional space tion triangle turn uranium various velocity vertices whereas