redOrbit Friends

Quote of the Day

Evolution is the law of policies: Darwin said it, Socrates endorsed it, Cuvier proved it and established it for all time in his paper on 'The Survival of the Fittest.' These are illustrious names, this is a mighty doctrine: nothing can ever remove it from its firm base, nothing dissolve it, but evolution.
- Mark Twain (1835 - 1910), U.S. author.

Quiz Me

Fact of the Day

Engineers have taken several steps to boost the performance of the ground antennas that will be receiving Galileo's signals. One trick is to use arrays of antennas instead of single antennas. How big (in diameter) would a single antenna be to provide the same performance as, say, the combination of the Canberra Deep Space Network site, the Parkes Radio Telescope, and the largest Goldstone antenna? 125 meters (410 feet)! That's about the distance from home plate to the wall in center field in Shea Stadium!