Popular Posts

• Earthcam: Watching the World From Orbit

  The Latest Available Pictures From Space *Produced in cooperation with NASA *Showcases Earth’s most spectacular images from orbiting satellites *Includes over 250 color photos graphically depicting climate changes, pollution, population growth and more For the past 40 years, satellites have been sent into space to look back at amazing planet Earth. Scientists, using the most [...]

• The NexStar User’s Guide

  Celestron’s NexStar telescopes were introduced in 1999, beginning with their first computer controlled “go to” model, a 5-inch. More models appeared in quick succession, and Celestron’s new range made it one of the two dominant manufacturers of affordable “go to” telescopes. Michael Swanson’s online discussions with literally thousands of NexStar owners made it clear that [...]

• The 50 Most Extreme Places in Our Solar System

  The extreme events that we hear about daily—hurricanes, earthquakes, tsunamis, and volcanic eruptions—are extreme in purely human terms, in the devastation they do. But this book moves our understanding of the extreme into extraterrestrial dimensions and gives us an awe-inspiring sense of what our solar system at its utmost can do. Martian dust devils taller [...]

• Functions And Uses Of Photography

  Photography refers to a process of creating pictures by recording radiations on an electronic sensor or on a sensitive medium such as a photographic film. The pictures which are recorded are either still or moving. The photography can be used a wide array of professions. These professions range from science and technology to business or [...]

• How to Use a Computerized Telescope: Practical Amateur Astronomy Volume 1

  How to Use a Computerized Telescope describes how to get a computerized telescope up-and-running, and how to embark on a program of observation. Michael Covington explains in detail how the sky moves, how a telescope tracks it, and how to get the most out of any computerized telescope. Packed full of practical advice and tips [...]