Popular Posts

• Flight Theory and Aerodynamics: A Practical Guide for Operational Safety, 2nd Edition

  Aerodynamics is the study of the interaction between bodies in motion and such external forces as air, gas, and fluids. Essential to the design and analysis of aircraft systems, aerodynamics is the key to understanding exactly what forces lift and drive an aircraft, and what forces work for and against it in flight. This is [...]

• How Galileo?s Telescope Changed Astronomy

  Before Galileo turned his telescope toward the night sky the act of astronomy was pretty much an astrological pursuit where objects and motions of object in the sky were explained using ancient and archaic understandings of the universe and how it works. Related posts Instrumentation for Large Telescopes (Cambridge Contemporary Astrophysics) The Hunt for [...]

• Easy Field Guide to the Arizona Night Sky

  This Easy Field Guide is your map for a personal stargazing tour through the Arizona Night Sky. Included are the legends of the night sky from the region’s Native American tribes. Related posts The Night Sky 40°-50° (Large) Star Finder Read the Night Sky with a Mobile Air Card The Universe & How to See [...]

• Das Licht der Sterne / Wie real ist unsere Wirklichkeit? (German Edition)

  Kurzbeschreibung Als die Philosophiestudentin Nermina eines Abends einen Mann am Ufer des großen Sees ihrer Heimat kennenlernt, kann sie nicht ahnen, daß damit das größte Abenteuer ihres Lebens beginnt. Er nennt sich Marc und gibt sich wenig später als Außerirdischer zu erkennen. Sein Beruf ist die Suche nach Lebewesen im Universum, die geeignet sind, den [...]

• Deep-Sky Companions: The Messier Objects

  If there were a canon for viewing the night sky, Charles Messier would be its author. The galaxies, star clusters, and nebulae cataloged by the famous comet hunter in the late 1700s are still the most widely observed celestial wonders in the heavens. They are the favorite targets of amateur astronomers, with such rich variety [...]