Describes technological and scientific inventions from prehistory to the Middle Ages, covering such topics as astronomy, communications, mathematics, timekeeping, weaponry, and transportation.This error made his trip much longer than expected, but led him to his discovery of the Americas. Note: Modern calculations continue to use Eratosthenesa#39; geometric and algebraic methodologies to arrive at the current figures. Calculating theanbsp;...

Title | : | Groundbreaking Scientific Experiments, Inventions, and Discoveries of the Ancient World |

Author | : | Robert E. Krebs, Carolyn A. Krebs |

Publisher | : | Greenwood Publishing Group - 2003 |

Continue