Popular Posts

• Celestial Navigation for Yachtsmen

  There is deep mystery and profound satisfaction in finding your position on earth by reference to the sun, moon, and stars–not to mention profound relief when the GPS receiver stops working in mid-passage. That is why knowledge of celestial navigation is still a rite of initiation, and its practice still a favorite pastime among serious [...]

• M&M’s (R) Around the World: An Unauthorized Collector’s Guide

  A hot, new collectible has gone international as great M&M’s*r items are being released all over the world! Now M&M’s fans can see lists and values for all known M&M’s dispensers, toppers, tins, and other items, plus related ads and displays from the USA and around the world. NASCAR M&M’s items, French pocket surprises, and [...]

• Universe Down to Earth

  This witty and amusing exploration of the physical universe explains fundamental concepts in language that is clear to anyone with little or no scientific background. Tyson transforms everyday experiences into venues of cosmic enlightenment as he probes the philosophy, methods, and discoveries of science, including stellar evolution, the conservation of energy, the electromagnetic spectrum, gravity [...]

• Core Astronomy

  Core Astronomy examines the key points in the development of astronomy, beginning with Greek astronomer Ptolemy’s earth centered paradigm to Nicolas Copernicus’ introduction of a sun centered solar system, and Isaac Newton’s three laws of motion. It then examines the discovery of Neptune, Einstein’s theories of Special and General Relativity, Hubble’s expanding universe, and the [...]

• Twilight of the Gods: The Mayan Calendar and the Return of the Extraterrestrials

  High up in the Bolivian Andes-4,000 meters above sea level-lies Puma punku, an ancient ruined city that simply could never have been constructed by its Stone Age inhabitants.”Something here really stinks to high heaven,” writes Erich von Daniken. “In Twilight of the Gods,” says von Daniken, “I document precisely what it was that left the [...]